Motorpact™ Medium Voltage
Motor Controllers
Class 8198
Catalog
February
06
CONTENTS
Description
Page
Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Selection Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Controller Features and Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Building a New Electric World
Motorpact™ Medium Voltage Motor Controllers
Introduction
INTRODUCTION
Square D®-brand Motorpact™ Medium Voltage Motor Controllers feature industry-first innovations that
provide unmatched performance, high reliability, and low maintenance. Designed and manufactured
by Schneider Electric, these motor controllers incorporate exclusive technologies that encourage
proper operation and are built to handle the toughest power and process control challenges.
Motorpact medium voltage motor controllers feature a compact one-high design with drawout
contactors and a completely isolated low voltage (LV) control compartment. When combined with other
electrical distribution and control products from Schneider Electric, our medium voltage motor
controller provides a system-wide solution you can trust.
Controller Features
Standard
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Available in single- or factory-assembled, multiple-controller sections
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Easily expandable modular units, constructed of rugged 11-gauge steel, make extensions and
connections to other equipment easy
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Compact footprint provides maximum use of available space, reduces installation costs, and allows
easy retrofits
•
Highly reliable design features molds to support power components and bus and fuse holder
castings to improve the overall performance of the power component system
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High-operation encased isolation means (IM) eliminates line-side shutters
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Low voltage compartment; this isolated compartment provides adequate space for metering,
control, or protective devices
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Mechanical and electrical interlocking between contactor and IM
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Full Voltage Non-reversing (FVNR) controller sections and Reduced Voltage Non-reversing
(RVNR) main contactor sections are available in various widths:
Compartmentalized design allows easy front or rear access, and encourages proper access to line,
load, and control compartments; with front access, the controller can be positioned against walls, in
small rooms, or in prefabricated buildings with minimal clearance
Self-contained power bus; the main horizontal power bus is contained within the standard 90-inch
controller height
Drawout contactor rail system that disconnects the contactor when lowered and connects the
contactor when raised
— 200/400/450 A, 14.75 in. (375 mm), 20.00 in. (508 mm), and 29.50 in. (749 mm)
— 720 A, 29.50 in. (749 mm)
NOTE: Full Voltage Reversing (FVR) controllers are available in 29.50 in. (749 mm) sections only.
•
Finished with high quality, electrostatically applied powder coating, including a zinc phosphate
wash to all parts painted prior to assembly
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•
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600–3000 A tin-plated main bus mounted directly on IM (when applicable)
Full-length ground bus in multiple bay enclosures
60 kV BIL rated equipment
Internal power cable connections feature Swage technology at the terminal ends; Swaging is a
cold-fused, 360° radial compression connection that is maintenance free, i.e., no terminals to torque
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© 2003—2006 Schneider Electric All Rights Reserved
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Motorpact™ Medium Voltage Motor Controllers
Introduction
Indoor
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•
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Lifting angles located at the top corners of each shipping section for ease in handling
Shipping splits of up to five sections with full length main bus
Provisions for expansion
Outdoor
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Lifting points located at the bottom of each shipping split for ease in handling
Convenient shipping splits (in sections of one, two, or three units)
Provisions for expansion
Power cable entry plate
Arc resistant vent flaps
(optional)
Low voltage
control entry plate
Inter-unit wireway
with 3 passages
Interlocked steel rear panels
with handle
Main bus/line barrier
120 VAC test receptacle
Low voltage control
compartment with ample
space for components
Encased isolation disconnect
with viewing window
Low voltage compartment door
Operator panel
.25 in. (6 mm) x 2 in. (51 mm)
copper ground bus
Power fuses independently
mounted from contactor
Load terminal pads
Medium voltage door
Drawout vacuum contactor
(200/400/450 A weighs less
than 61 lbs/27.7 kg and
720 A weighs less than
76 lbs/34.5 kg )
Full height cable pull area
Current transformer or
low power current transformer
Control power transformer
Multi-function rail system
assures full engagement,
disconnects contactor,
and provides drawout rails
Control power transformer
voltage transformer
fuse holders
Motorpact™ Controller Section (indoor)
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© 2003—2006 Schneider Electric All Rights Reserved
Motorpact™ Medium Voltage Motor Controllers
General
GENERAL
Motorpact™ Medium Voltage Motor Controllers are designed to provide the most efficient means of
controlling and protecting a wide range of applications. They may be configured for motor starting,
transformer feeders, capacitor feeders, or future spaces. The units also provide a wide range of motor
starting applications.
Codes and Standards
Motorpact Medium Voltage Motor Controllers are manufactured to NEMA® (National Electrical
Manufacturers’ Association) Standard ICS 3. They are also manufactured to Underwriters Laboratories
Standard 347 and bear the cULus label.
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NEMA ICS 3
UL347
IEC 60470, 60529, 60694, 60129, 62271-102, 62271-200 (replaces 298)
ANSI® C37.20.7, Arc Resistant (optional)
IEC 62271-200, Arc Resistant (optional)
Enclosure Types
•
Indoor Type 1—Intended for indoor use only. Indoor Type 1 enclosures are designed primarily to
provide protection against contact with energized equipment inside. They are to be used in
locations where normal indoor service conditions exist.
•
Indoor Type 1 Gasketed (Indoor Type 1A)—Intended to restrict the entrance of dust and dirt into
Indoor Type 1 enclosures.
NOTE: Gasketed enclosures are not dust-tight.
•
Outdoor Type 3R—Enclosures constructed for either indoor or outdoor use to provide a degree of
protection to personnel against incidental contact with the enclosed equipment; to provide a degree
of protection against falling dirt, rain, sleet, and snow; and that will be undamaged by the external
formation of ice on the enclosure.
•
Arc Resistant Type B Vented Style
— Intended to provide a degree of protection from internal arc faults around the perimeter of the
equipment. Exhaust vents are provided on the top of the enclosure to vent hot gasses. A
minimum of 6.6 ft. (2 m) clearance above the equipment should be maintained.
•
Arc Resistant Type B Plenum Style
— Intended to provide a degree of protection from internal arc faults around the perimeter of the
equipment. Exhaust ports are provided on the top of the enclosure to vent hot gasses into a
plenum box that vents the hot gasses to each end of the equipment. This option may be
considered when 6.6 ft. (2 m) clearance above the equipment is not available, or when
equipment is installed in a Square D®-brand Power-Zone® enclosure.
Shipping Weights
One, two, three, four, or five vertical sections can be shipped together on a pallet in widths of
14.75 in. (375 mm). Larger motor controllers are split into shipping blocks of three sections maximum.
The following table lists typical approximate shipping weights.
Approximate Shipping Weights–
14.75 in. (375 mm) Wide Controllers Only
Enclosure Type
Weight of Each in Lbs (kg)
Indoor Type 1/1A FVNR–14.75 (375 mm)
1150 (522)
Outdoor Type 3R FVNR–29.50 (749 mm)
1810 (821)
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© 2003—2006 Schneider Electric All Rights Reserved
4/2006
Motorpact™ Medium Voltage Motor Controllers
General
Ratings
Enclosure and Bus Ratings
450 A Max. and 720 A Max. Controllers
Minimum line-to-line voltage (kV)
1.0
Maximum line-to-line design voltage (kV)
7.2
BIL (kV) at 3300 ft (1000 m)
60
Frequency (Hz)
50/60
Main bus continuous amps
600/1200/2000/3000
Short circuit withstand at rated voltage—
(kA peak) main bus to fuse line-side terminal
130
Short time rating (kA) symmetrical:
Main bus (2 seconds)
50
(0.25 second – through IM to line-side fuse)
50
Controller (from load) (1 second)
6.0
Controller (from load) (30 seconds)
2.4
Dielectric withstand (kV 1 minute)
20 kV
Standard maximum altitude rating
1000 m (3300 ft)
The table below lists ratings for the 200/400/450 A and 720 A vacuum contactors.
Motorpact™ Vacuum Contactor Ratings
450 A Max. Contactor
720 A Max. Contactor
Rated voltage
7200 V
2400/4200/6900 V – 7200 V max.
Rated operational current
200/400/450 A
720 A
Unfused MVA
25/50 (36/60)
30/60/85
Fused MVA
200/400/570
200/400/600
Overcurrent strength (peak value)
85 kA
85 kA
Interrupting capacity
5000 A rms symmetrical @ 7200 V max.
7200 A
Permissible switching frequency
1200/hour
600/hour
Mechanical life
2,500,000 operations
1,000,000 operations
Electrical life
250,000 operations
200,000 operations
Impulse withstand
60 kV
60 kV
Dielectric strength
22 kV – 1 minute
22 kV – 1 minute
Closing time
80 ms or less
80–100 ms
Opening time
25 ms or less
40–60 ms
Opening time (delayed)
Approximately 300 ms1
To be field configured in protective relay
Arcing time
10 ms or less
10 ms or less
Pick-up voltage ac or dc
85% rated (hot)—70% rated (cold)
85% rated (hot) – 70% rated (cold)
Drop-out voltage ac or dc
50% rated (hot)—40% rated (cold)
50% rated (hot) – 40% rated (cold)
Rated control voltage ac
115/120 or 230/240 V 50/60 Hz
115–240 V
Rated control voltage dc
120/125 or 240/250 V
125–250 V
Coil circuit inrush
670 VA ac (700 W dc)
840 VA
Coil circuit holding
85 VA ac (85 W dc)
120 VA
Auxiliary contact arrangement
3 (N.O./N.C.)
3 (N.O./N.C.)
Auxiliary contact current
10 A continuous (NEMA Class A600)
10 A continuous (NEMA Class A600)
Auxiliary contact voltage
48 V (min.)–600 V (max.)
48 V (min.)–600 V (max.)
Auxiliary contact ac
720 VA (P.F. 0.35)
720 VA (P.F. 0.35)
Auxiliary contact dc
60 W (L/R 150 ms)
60 W (L/R 150 ms)
1
Terminals 3 and 4 jumpered.
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© 2003—2006 Schneider Electric All Rights Reserved
Motorpact™ Medium Voltage Motor Controllers
General
Ratings for the latched vacuum contactor are the same as in the preceding table, except as listed in
the table below.
Motorpact™ (Latched Type Only) Vacuum Contactor Ratings
450 A Max. Contactor
Permissible switching frequency
720 A Max. Contactor
300/hour
300/hour
Mechanical life
250,000 operations
200,000 operations
Minimum tripping voltage
40–60% of coil rating dc (cold)
40–60% of coil rating dc (cold)
Tripping current
4.8 dc max.
4.8 dc max.
Structures
Each section provides vertical mounting space for one drawout contactor, isolation means
(disconnector), power fuses, and a low voltage control compartment. Auxiliary sections are required for
units such as reduced voltage starters.
Each vertical section consists of a bolted, formed-steel frame, with steel doors, side sheets, top
sheets, and rear bolted covers. For 450 A controllers, each section features a bottom cable entry point.
For 720 A controllers, some sections feature a bottom cable entry point. Each section also features
punchable top covers for top entry cables.
Sections are designed for complete front access for locations against walls. Or the section may be
accessed from the front and the rear, allowing greater cable termination and maintenance access.
Sections include a bare copper ground bus with mounting provisions for customer-supplied ground lug(s).
Structure Options
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10.00 in. (254 mm) or 17.00 in. (432 mm) high cable pull box
Drip hood
Strip heater (125 W when operated at 120 V)
Thermostat for control of strip heaters (six heaters maximum)
Cable entry floor plates
Contactor status “Open/Close” viewing window in medium voltage (MV) door
Additional nameplates
Special exterior paint colors
Encased Non Load-break Isolation Means (IM)
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Mechanical and electrical interlocks promote proper access to energized medium voltage
compartments
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Load side grounding of the MV compartment when in the open position
Standard viewing window for position indication with optional interior light
Physical isolation between main bus/line compartment and load compartment
Optional key interlocking
Maintenance-free contacts capable of 5000 operations
Power Fuses
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•
•
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DIN-style with ANSI® R or E-rated characteristics
Easy removal from the front
Mounted separate from the vacuum contactor
Optional FuseLogic blown fuse tripping and remote indication
Optional fuse insertion and removal tool accessory
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Motorpact™ Medium Voltage Motor Controllers
General
Contactor
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Drawout design
Control power transformer (CPT) and power fuses mounted separately
Plug-style automatic secondary connection
Drawout rail system inserts and removes contactor from primary stabs
Contactor truck engages ground bar when connected
3 (N.O./ N.C.) auxiliary contacts
NOTE: Optional auxiliary contacts are not available for 720 A contactors.
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Lightweight at less than 61 lbs (27.7 kg) for 450 A and 76 lbs (34.5 kg) for 720 A
Optional mechanical operation counter
Control Voltages
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All ANSI® ranges
Load Termination Space
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Load terminal pads are front and rear accessible
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For 720 A, accepts up to (1) - 1000 kcmil shielded power cables per phase or (2) - 750 kcmil
shielded power cables per phase (prefabricated stress cones are recommended)
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•
Optional compression lugs and ground lugs
Top or bottom cable exit with full height cable pulling area
For 450 A, accepts up to (1) - 500 kcmil shielded power cables per phase or (2) - 250 kcmil
shielded power cables per phase
Optional cable ground switch mechanically interlocked with the main isolation means
Protection and Control
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Sepam Series 20, 40, or 80 Protective Relay
“Start” and “Stop” pushbutton
“Run” and “Stop” 22 mm LED pilot lights
Front access low voltage components
High visibility white interior
Other third party protective relays are available
Instrument Transformers
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Current transformer—ring style 3-in-1 design
Optional low power current transformer (LPCT)—with a linear current range, ring style 3-in-1
design (mV output to Sepam relay)
CPT with primary and secondary fusing
Optional fixed–mounted 3-phase open delta voltage transformer with primary and secondary fusing
Horizontal Main Bus
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Standard tin-plated copper bus
Ratings shown are based on 65° C maximum temperature rise
Bus bar short-circuit withstand rating is 50 kA rms for 2 seconds
Optional insulated bus
60 kV BIL “standard”
Optional lightning arrester—bus bar surge protection
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© 2003—2006 Schneider Electric All Rights Reserved
Motorpact™ Medium Voltage Motor Controllers
Application
APPLICATION
Squirrel Cage Motors
Either applying full-line voltage or reduced-line voltage to the motor terminals can start a squirrel cage
motor. The “typical” squirrel cage motor draws high-starting current (inrush) and provides high-starting
torque when started at full voltage.
Reduced-voltage controllers are used to reduce the starting current and the starting torque. When motors
are started at reduced voltage, the current at the motor terminals is reduced in direct proportion to the
voltage reduction, while the torque is reduced as the square of the voltage reduction. Therefore,
reduced-voltage starting provides an effective means of reducing both starting current and starting torque.
If the motor load has a high inertia, or if the motor ratings are marginal for the motor load, reducing starting
torque may prevent the motor from reaching full speed before the overload relay trips. Applications that
require a high-starting torque should be reviewed by the customer to determine if reduced-voltage starting
is suitable.
There are several different types of reduce-voltage controllers available in the marketplace. The soft start
controller will handle the vast majority of applications encountered. In addition to soft start controllers,
autotransformer types are available. These types provide closed transition starting.
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© 2003—2006 Schneider Electric All Rights Reserved
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Motorpact™ Medium Voltage Motor Controllers
Application
Squirrel Cage Motor Starting Characteristics
Starting Characteristics in % of Full Load Values
Type of Controller Voltage at
Motor *
Line
Current
Motor
Current
Starting
Torque
Limitations
Advantages
Draws highest current from the line
during starting which affects:
Across the line
(Full voltage)
100
600
600
150
1. LOAD: High starting torque results
in sudden start for drive machine.
May cause undue strain.
2. POWER SYSTEM CAPACITY:
1. Simplest
Limitations may prohibit high inrush 2. Least expensive and should be
current when starting large motor at
used when limitations indicate on
full voltage.
left do not apply
3. MOTOR LOCATION: Line voltage
drop due to inrush current when the
motor is located at a considerable
distance from power source. May
cause other controllers on the line to
drop out.
Taps:
Primary reactor
50
300
300
25
65
390
390
42
80
480
480
64
1. Uses two contactors and a reactor.
Hence, it costs more and requires
more space than full-voltage
controllers.
2. Low power factor during starting.
of
150%
Taps:
Autotransformer
50
150
300
25
65
253
390
42
80
384
480
64
of
1. Inherently closed transition type
(motor is not disconnected from
line during transition from
reduced-voltage starting to
full-voltage running); this reduces
objectionable switching transients
2. Voltage taps permit adjustment of
starting voltage
3. Suitable for long starting period
1. Provides highest torque per
ampere of line current
1. Uses three contactors and an
2. Same for primary reactor
autotransformer. Hence, it costs
3. Controller, see above
more and requires more space than 4. Motor current is greater than line
full-voltage controllers.
current during starting which
2. Low power factor during starting.
produces same starting torque as
in primary reactor controller but
with reduced line current
150%
Soft start
Taps:
Voltage
Current
Torque
NONE
0–100%
0–600%
Up to 150%
1. Uses two contactors and soft start
power poles. Cost is slightly higher
than RVAT.
1. Provides smooth acceleration and
deceleration method for motors
2. Heavy duty power section can
provide 600% current for 30 sec.
or 500% for 60 sec.
3. Soft stop programmable.
4. Voltage or current ramp
programmable
5. Motor protection and monitoring
built into control package
6. Power poles are individually field
replaceable
7. NEMA medium and heavy duty
starting in one package
*Based on assumption that 600% locked rotor currents used for full voltage starting.
Motor Controllers
Medium voltage motor controllers are recommended for motors above 200 horsepower. As compared
to 480 volt applications, the current is lower, allowing for smaller conductors. By reducing the cost of
expensive copper wire, generally the overall cost of an installation is reduced. Motorpact™ medium
voltage motor controllers are available for a conventional single speed, single-winding type, squirrel
cage motor. The table above summarizes the differences among the full voltage, the primary reactor,
autotransformer controllers, and the soft start controllers.
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© 2003—2006 Schneider Electric All Rights Reserved
Motorpact™ Medium Voltage Motor Controllers
Application
Full Voltage Non-Reversing Controllers
The full voltage non-reversing (FVNR) controller provides full voltage to the motor terminals during
starting. The controller provides the maximum starting torque available (up to 150%). FVNR controllers
are the most economical type for the control and protection of medium voltage motors.
Full Voltage Reversing Controllers
The Full Voltage Reversing (FVR) controllers allow the user to change direction of motor rotation
(forward or reverse). An additional contactor is used to reverse the A and C phases to the motor
terminals. This type of controller can also be used in conjunction with RVSS and RVAT controllers to
provide a reduced voltage start in either direction.
Reduced Voltage Autotransformer
The autotransformer controller provides reduced voltage to the motor terminals during starting through
the use of a tapped, three-winding, three-phase, autotransformer. The taps on the autotransformer
provide selection of 50%, 65%, or 80% line voltage applied to the motor during staring. Starting torque
will be 25%, 42%, or 64%, respectively, of full voltage values. However, because of the transformer
action, the line current during starting will be less than the motor current, being 28%, 45%, or 67% of
full voltage values. Stated another way, the motor current is greater than the line current. This feature
allows maximum starting torque with minimum line current, which is the main advantage of the
autotransformer controller as compared with the primary reactor controller.
Square D®-brand reduced-voltage controllers utilize NEMA®/EEMAC medium-duty rated
autotransformers. Unless otherwise specified, the controller is shipped with the 65% tap connected. If
this tap proves unsuitable, one of the other taps may be easily connected in the field.
Reduced Voltage Soft Start (RVSS) Controllers
Motorpact™ RVSS motor control units provide a pre-engineered, integrated motor control package for
reduced-voltage starting and soft stopping of three-phase medium voltage induction (squirrel cage)
motors. The Motorpact RVSS is a three-phase, microprocessor-based, digitally controlled reduced
voltage soft starter for medium voltage ac motor applications. The unit controls the motor start-up by
delivering an adjustable amount of initial voltage and current to the motor, then slowly increases the
voltage and current to 100 percent. The Motorpact RVSS has a linear voltage versus time ramp,
unless setup for current limit or ramp configuration. This adjustable acceleration ramp allows a smooth
transition from the point where the motor shaft begins to turn, to full motor speed, regardless of the
type of load. The Motorpact RVSS also features a selectable dual adjustment mode that can be
programmed for a second load type. The Motorpact RVSS is offered in voltages from 2.3 kV to 7.2 kV
and current ratings from 100 to 400 A.
The acceleration ramp time for a typical start-up is thirty seconds or less, and is adjustable
(0–120 seconds) to allow the motor to smoothly accelerate the load. The current limit is adjustable from
100% to 600% of programmed motor full load amperage (FLA). This adjustment is separate from the
acceleration time, to allow greater control of peak power usage. At the end of the start cycle, the unit will
switch in a bypass contactor, placing the unit across the line with overload protection still present.
Mechanically Latched Controllers
Mechanically latched controllers can be used in place of load interrupter switches or metal-clad circuit
breakers in applications where the load remains connected to the power source, even during severe
undervoltage or power loss conditions. The controller uses a mechanical-latching mechanism that
holds the contactor closed. Therefore, the load remains unless the release is activated either
electrically or manually.
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© 2003—2006 Schneider Electric All Rights Reserved
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Motorpact™ Medium Voltage Motor Controllers
Application
Transformer Disconnects
Transformer feeders provide a means to control and protect transformers. Mechanically latched
controllers are typically used for this purpose and are supplied with E-rated fuses, which are sized for
the kVA rating and system voltage rating of the transformer. Additional protection is available using
voltage, current, or multi-function protective relays.
Feeder Disconnects
Feeder disconnect applications use E-rated fuses, which provide overcurrent protection for the load.
Mechanically latched controllers are typically used for this purpose and are supplied with E-rated
fuses, which are sized for the kVA rating and system voltage. Additional protection is available using
voltage, current, or multi-function protective relays.
Capacitor Bank Disconnects
Motorpact™ controllers may be used for capacitor bank switching applications. Mechanically latched
controllers are typically used for this purpose and are supplied with E-rated fuses, which are sized for
the kVA rating and system voltage. Additional protection is available using voltage, current, or
multi-function protective relays.
Prepared Spaces
Prepared spaces are available for blank compartments to allow future installation of a complete full
voltage non-reversing controller. Both mechanical and electrical packages are available.
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© 2003—2006 Schneider Electric All Rights Reserved
Motorpact™ Medium Voltage Motor Controllers
Selection Information
SELECTION INFORMATION
Full Voltage Non-Reversing Controllers—Squirrel Cage
Full voltage or across-the-line controllers apply the system line voltage to motor terminals to start a
motor. The resulting inrush current can range from 400% to 1000% of full load current. Full-voltage
starts provide high-starting torque (about 150% of full-load torque). Full-voltage controllers are the
most widely used and meet most applications with their simple, cost-effective design.
Full voltage or across-the-line controllers are arranged in one-high construction.
Basic 200 A Controller Components Ma x imu m R Maximum Ratings
Description
Quantity
Controller
Rating
(Amperes)
Voltage
Horsepower
14.75 in. (375 mm) Indoor Type 1 enclosure
1
2300
850
Three-pole non-load break isolation means
1
3300
1225
Three-pole vacuum contactor
1
4160
1545
Current limiting power fuse
3
6900
2500
200
Control power transformer (CPT) - 0.3 kVA
1
2300
1700
CPT primary current limiting fuses
2
3300
2450
Current transformers (3 window)
1
Control circuit secondary fuse
1
400
Low Voltage Controls Include:
4160
3000
6900
5125
2300
1925
120 Vac test circuit plug
1
Start pushbutton - 22 mm
1
Stop pushbutton - 22 mm
1
6900
5750
Red “RUN” pilot light - 22 mm
1
2300
3075
Green “OFF” pilot light - 22 mm
1
Interposing control relay
2
Auxiliary contacts 3 (N.O./N.C.)
1
Class 20 bi-metallic overload
1
14.75 in.
(375 mm)
Standard 450 A
Width
20.00 in.
(508 mm)
Optional
450 A Width
450
720
3300
2750
4160
3475
3300
4400
4160
5500
6900
9250
29.50 in.
(749 mm)
Optional 450 A/
Standard 720 A
Width
FVNR
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© 2003—2006 Schneider Electric All Rights Reserved
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Motorpact™ Medium Voltage Motor Controllers
Selection Information
Full Voltage Non-Reversing Controllers—Mechanically Latched
Mechanically latched controllers apply the system line voltage to a load such as a transformer. They
provide a simple, cost-effective way of providing control and protection and are arranged in
one-high construction.
Basic 200 A Controller Components M axi m um R a tMaximum Ratings
Description
Quantity
Controller Rating
(Amperes)
Voltage
kVA
Indoor Type 1 enclosure
1
2300
795
Three-pole non-load break isolation means
1
3300
1140
Three-pole vacuum contactor, mechanically held
1
4160
1440
Current limiting power fuses - E rated
3
6900
2390
Control power transformer (CPT) - 0.3 kVA
1
2300
1590
CPT primary current limiting fuses
2
3300
2285
Current transformers (3 window)
1
Control circuit secondary fuse
1
200
400
Low Voltage Controls Include:
120 Vac test circuit plug
1
Close pushbutton - 22 mm
1
Open pushbutton - 22 mm
Red “ON” pilot light - 22 mm
4160
2880
6900
4780
2300
1790
3300
2570
4160
3240
1
6900
5375
1
2300
1790
Green “OFF” pilot light - 22 mm
1
3300
2570
Interposing control relay
2
4160
3240
6900
5375
Auxiliary contacts 3 (N.O./N.C.)
1
Manual trip (release) pushbutton
1
Electric release solenoid
1
14.75 in.
(375 mm)
Standard 450 A
Width
20.00 in.
(508 mm)
Optional
450 A Width
450
720
29.50 in.
(749 mm)
Optional 450 A/
Standard 720 A
Width
FVNR Latched
13
4/2006
© 2003—2006 Schneider Electric All Rights Reserved
Motorpact™ Medium Voltage Motor Controllers
Selection Information
Full Voltage Reversing Controllers
Full Voltage Reversing controllers allow you to operate the motor in either forward or reverse directions
when starting torque and resulting inrush currents are not a concern for the motor.
Basic 200 A Controller Components M axi m um R a Maximum Ratings
Description
Quantity
Controller Rating
(Amperes)
Voltage
Horsepower
29.50 in. (750 mm) Indoor Type 1 enclosure
1
2300
850
Three-pole non-load break isolation means
1
3300
1225
Current limiting power fuses
3
4160
1545
Three pole vacuum contactors (forward/reverse,
mechanically interlocked)
2
6900
2500
Control power transformer (CPT)
1
2300
1700
CPT primary current limiting fuses
2
3300
2450
Current transformers
3
4160
3000
Control circuit secondary fuse
1
6900
5125
2300
1925
200
400
Low Voltage Controls Include:
120 Vac test circuit plug
1
3300
Forward pushbutton
2750
1
4160
3475
Reverse pushbutton
1
6900
5750
Stop pushbutton
1
Red pilot lights (Forward/Reverse)
2
Interposing control relays
2
Electrical interlocks (2 N.O./2 N.C. per contactor)
8
Class 20 bi-metallic overload
1
450
29.50 in.
(749 mm)
FVR
14
© 2003—2006 Schneider Electric All Rights Reserved
4/2006
Motorpact™ Medium Voltage Motor Controllers
Selection Information
Reduced Voltage Non Reversing Controllers—Autotransformer/Squirrel Cage
Limit the line current draw and voltage drop during full-voltage staring on limited power distribution
systems.
NOTE: The autotransformer will be shipped separately for horsepowers above 250. This is done to
reduce the overall weight of the controller. The installer will be responsible for the correct installation of
the transformer at the job site. For further instruction on the RVAT, see the “Field Installation” section
in instruction bulletin no. 46032-700-06_.
Basic 200 A RVAT Controller Components M a xi mum R a Maximum Ratings
Description
Quantity
Horsepower Range
Voltage
Indoor Type 1 enclosure
1
0–250
2300
Three-pole non-load break isolation means
1
0–250
3300
Three-pole vacuum contactor (Main/Run)
2
0–250
4160
Three-pole vacuum contactor (Start), mechanically interlocked
with Run
1
0–200
6900
Current limiting power fuses
3
300–1750
2300
Control power transformer (CPT) - 0.3 kVA
1
300–1750
3300
CPT primary current limiting fuses
2
300–1750
4160
Current transformers (three window)
1
250–3750
6900
Control circuit secondary fuse
1
1800
2300
Three coil autotransformer with 50%, 65%, and 80%
voltage taps
1
2250–2750
3300
2000–3500
4160
4000–5500
6900
Low Voltage Controls Include:
120 Vac test circuit plug
1
Start pushbutton–22 mm
1
Stop pushbutton–22 mm
1
Red “RUN” pilot light–22 mm
1
Green “OFF” pilot light–22 mm
1
Timing relay
1
Current relay for transition
4
Incomplete sequence relay
2
3 Auxiliary contacts (N.O./N.C.)
1
Class 20 bi-metallic overload
1
14.75 in. 29.50 in.
(375 mm) (749 mm)
20.00 in.
(508 mm)
29.50 in.
(749 mm)
14.75 in. 44.25 in.
(375 mm) (1124 mm)
20.00 in.
(508 mm)
29.50 in.
(749 mm)
14.75 in. 59.00 in.
(375 mm) (1499 mm)
20.00 in.
(508 mm)
29.50 in.
(749 mm)
RVAT
15
4/2006
© 2003—2006 Schneider Electric All Rights Reserved
Motorpact™ Medium Voltage Motor Controllers
Selection Information
Reduced Voltage Non Reversing Controllers—Soft Start/Squirrel Cage
Limit the line current draw and voltage drop during full-voltage starting on limited power distribution
systems.
Motorpact™ RVSS motor control units provide a pre-engineered, integrated motor control package for
reduced voltage soft starting and soft stopping of three-phase medium voltage induction motors.
NOTE: The RVSS offers very flexible starting, stopping, and protective features, therefore
commissioning requires that the customer provides important data during the order process. The data
required by the customer can be found in “Section 12–Commissioning” of instruction bulletin no.
46032-700-04_. Start up service is available upon request.
Basic 200 A RVSS Controller ComponentsM a x imu m R atMaximum Ratings
Description
Quantity
Controller
Type
(Amperes)
Voltage
(0.8 PF)
Horsepower
(1.0 PF)
Indoor Type 1 enclosure
1
2300
800
Three-pole non-load break isolation means
1
3300
1000
Three-pole vacuum contactor (Main)
1
4160
1250
Three-pole vacuum contactor (Bypass)
1
6900
2500
Current limiting power fuses
3
2300
1500
Control power transformer (CPT)–0.75 kVA minimum
1
3300
2250
CPT/Voltage transformer (VT) primary current limiting fuses
3
4160
2750
VT
1
6900
5000
Current transformers (3 window)
1
Control circuit secondary fuse
1
Solid state controller with MPR and metering
1
200
400
Low Voltage Controls Include:
120 Vac test circuit plug
1
Start pushbutton - 22 mm
1
Stop pushbutton - 22 mm
1
Red “RUN” pilot light - 22 mm
1
Green “OFF” pilot light - 22 mm
1
Auxiliary contacts 3 (N.O./N.C.)
2
14.75 in.
(375 mm)
20.00 in.
(508 mm)
29.50 in.
(749 mm)
29.50 in.
(749 mm)
RVSS
16
© 2003—2006 Schneider Electric All Rights Reserved
4/2006
Motorpact™ Medium Voltage Motor Controllers
Selection Information
Controller Features
Non-load Break Isolation Means (Disconnector)
The isolation means (IM) is designed to disconnect a controller from the line or source and is required
to allow for maintenance of the units. Each Motorpact™ controller is equipped with an isolation means
like the one shown below.
The isolation means is a medium voltage, three-pole, manually operated device. The IM is encased in
an arc resistant, flame–retardant housing. In the open position, the IM is grounded.
Designed for use on systems up to 7.2 kV, the isolation means are rated 200, 450, and 720 A. The IMs
are non-load break devices, which means the devices cannot interrupt a power load. Design of the IM
allows for interrupting CPT and/or VT loads only. Mechanical and electrical interlocking inhibit opening
or closing the IM with the contactor closed.
Isolation Means
Vacuum Contactor
The Motorpact vacuum contactor utilizes state-of-the-art vacuum technology and is a three-pole device
rated 7.2 kV maximum, 60 kV BIL, with an interrupting rating of 5000 A symmetrical. Basic contactors
contain three vacuum interrupters, a dc operating coil with a rectifier circuit, and auxiliary contacts. The
vacuum contactor incorporates an electronic drive unit to power the operating coils. This soft start
design eliminates economizing resistors and improves the reliability of the coil circuit. The contactor is
available in either electrically maintained or latched-type versions. This contactor is used as the main
(42M) contactor on:
•
•
•
•
Full Voltage Non-reversing (FVNR) controllers
Full Voltage Reversing (FVR) controllers
Reduced Voltage Autotransformer (RVAT) controllers
Reduced Voltage Soft Start (RVSS) controllers
The contactor is also used as the Start (S) and Run (R) contactor on reduced voltage
autotransformers, as the bypass contactor for RVSS controllers, and the reversing contactor for FVR.
A mechanical-latching mechanism may be added to a basic contactor to lock the contactor closed. An
electrical release is optional. The mechanically latched contactor is used primarily for transformer
feeder circuits, transfer schemes, and applications where it is desirable for the contactor to remain
closed during voltage dip or loss.
17
4/2006
© 2003—2006 Schneider Electric All Rights Reserved
Motorpact™ Medium Voltage Motor Controllers
Selection Information
Control
terminal
blocks with
drive unit
Closing
coils
Load
connections
Line
connections
Auxiliary
switch
Motorpact™ 200/400/450 A Vacuum Contactor
Control
terminal
blocks
Drive
unit
Closing
coils
Load
connections
Line
connections
Motorpact 720 A Vacuum Contactor
Medium Voltage Fuses
Motorpact™ Medium Voltage Motor Controllers are a fused device. They may be provided with either R- or E-rated fuses. R-rated
fuses provide fusing for motor type controllers and E-rated fuses provide fusing for transformer or distribution feeder type
controllers.
The R-rated fuse range is 2R–38R for 450 A and 48R–57X for 720 A. The E-rated fuse range is 10E for 450 A and 510 A–765 A for
720 A.
The power fuses have a top-mounted trigger (striker pin) that pops up when the fuse element melts. This can activate an optional
FuseLogic contact and/or light, indicating a blown fuse.
18
© 2003—2006 Schneider Electric All Rights Reserved
4/2006
Motorpact™ Medium Voltage Motor Controllers
Selection Information
Current Transformers
Motorpact™ controllers are equipped with current transformers (CTs) and control power transformers
with options available such as potential transformers, power factor correction capacitors, surge
arresters, and surge capacitors.
CTs are used to provide a current at an acceptable level (typically 0–5 amperes) to metering,
protective, and control devices. The figure below shows the three-phase CT and ground fault CT.
Motorpact controllers use 0.6 kV voltage class CTs. Use of this lower voltage class is possible since
the cable through the toroid is insulated, and the cable insulation provides the insulating properties
required.
Ground Fault Current Transformers (GFCT) and a multi-function relay are used to provide protection.
Typically, a 50:5 CT is used, but both 100:5 and 2000:1 versions are available upon request. The
2000:1 GFCT is usually reserved for high resistance grounded systems requiring greater sensitivity.
Three-phase Current Transformer, Mounted in
a Controller with a Ground Fault Current Transformer
Current Transformer Accuracy
ANSI
Metering
ANSI®
Class at 60
Relay Class
Hz
IEC Relay
Class
IEC
Metering
Class at 60
Hz
Resistance
Catalog
Number
Current
Ratio
(Amps)
80.1
80.2
80.5
80.9
3PL55-50C
50:5
–
5.0
–
–
–
–
3PL55-101
100:5
–
2.4
–
–
–
–
3PL55-151
150:5
–
1.2
2.4
–
–
–
3PL55-201
200:5
–
1.2
1.2
2.4
2.4
–
3PL55-251
250:5
–
0.6
0.6
1.2
2.4
–
3PL55-301
300:5
–
0.6
0.6
1.2
1.2
–
3PL55-401
400:5
–
0.3
0.3
0.6
1.2
1.2
3PL55-501
500:5
C10
0.3
0.6
0.6
1.2
–
3PL55-601
600:5
C10
0.3
0.3
0.6
1.2
2.4
3PL55-751
750:5
C10
0.3
0.3
0.3
0.6
1.2
3PL55-801
800:5
C10
0.3
0.3
0.3
0.6
1.2
3PL55-10
1000:5
C10
0.3
0.3
0.3
0.3
0.6
3PL55-12
1200:5
C20
0.3
0.3
0.3
0.3
0.6
81.8
19
4/2006
© 2003—2006 Schneider Electric All Rights Reserved
Motorpact™ Medium Voltage Motor Controllers
Selection Information
Low Power Current Transformers
Low power current transformers (LPCTs) provide the ability to have a “one current transformer fits all”
ranges application. It is linear across a wide current range. The LPCTs rated primary current is 100 A
to 4 kA, with a millivolt output signal rated 22.5 mV. The LPCT is ideal for installations that have future
load upgrades that would typically require a new current transformer. It is intended to be used with any
Sepam relay. This type of current transformer eliminates the danger of loose wires that may cause an
open secondary and requires no maintenance of its secondary connections or leads.
Sepam 1000
100 A/22.5 mV
1/2500
Metering and
protection
Block Diagram of Low Power Current Transformer
1 turn
E
2500
turns
Load
Ideal
transformer
CT operation law
Im = magnetizing current, characteristic of the magnetic core
Low Power Current Transformer Equivalent Layout
Ip
5A
20 A
100 A
4 kA
30 kA (CVv120)
38 kA (CVv200)
Low Power Current Transformer Accuracy Template
20
© 2003—2006 Schneider Electric All Rights Reserved
4/2006
Motorpact™ Medium Voltage Motor Controllers
Controller Features and Accessories
CONTROLLER FEATURES AND ACCESSORIES
Control Power Transformers
Control power is supplied to Motorpact™ controllers via a control power transformer (CPT).
Standard CPT Sizes
Contactor Rating
(in Amperes)
Optional CPTs
Volt-Ampere Rating
300 VA
200/400/450 A or 720 A
Contactors
500 VA
750 VA
kVA Rating
Section Width (In./mm)
5 kVA
29.50/749*
*720 A may require a 14.75/375 auxiliary section.
2.0 kVA
All CPTs are fused with two primary fuses and at least one secondary fuse. The CPTs are epoxy
encapsulated to 2.0 kVA and are typically rated 60 kV BIL.
Control power can be supplied by the end-user. When requested, the CPT is removed from the
controller and provisions for an external control power source are provided. Provisions include terminal
points to make the control power connection and an appropriately sized control power wire extending
through the lineup, if required.
Voltage Transformers
Relays or meters sometimes require a three-phase voltage to operate. This voltage is supplied in one
of the following ways:
•
•
•
100 VA three-phase controller mounted voltage transformer (VT)
Voltage transformer section
Three-phase wire bus from external source
The 100 VA three-phase VT is typically supplied unless a higher burden is required. The voltage
transformer is epoxy encapsulated and rated 60 kV BIL.
For higher burden requirements, a VT section may be supplied. A VT section mounts two fixed 700 VA
VTs or one 3-phase open delta VT in a section with or without a VT disconnector. It is possible to use
a VT disconnect for a lineup and distribute the power via a wire power bus. For some applications, a
three-phase wire bus may be advantageous. This method requires mounting the power transformers
(PT) remotely and feeding the controller or lineup with a potential bus.
Instrument Transformer Primary Fusing
The CPT and VT (when supplied) have two or three
5.5 kV or 6.9 kV rated primary fuses. The fuses are
completely encased in an arc resistant, flame-retardant
holder. The holder is completely front accessible. The
holder has provisions for voltage testing from the front.
CPT Fuse Holder
21
4/2006
© 2003—2006 Schneider Electric All Rights Reserved
Motorpact™ Medium Voltage Motor Controllers
Controller Features and Accessories
Main Bus Amperes and Material
Rating
(Amperes)
600
Material
Tin-plated copper
600
Silver-plated copper
1200
Tin-plated copper
1200
Silver-plated copper
2000
Tin-plated copper
2000
Silver-plated copper
3000
Tin-plated copper*
3000
Silver-plated copper*
* Requires a 10 high (min.) top hat/pull box.
An optional 17 high box is available.
NOTE: The total current
requirements of all the controllers
should not exceed the current rating
of the horizontal main bus.
Horizontal Main Bus Located at the Top of the
Isolation Means
Incoming Power Options
•
Stand-alone controllers–Motorpact™ motor controllers can be stand-alone equipment. In this case,
provisions are provided for terminating incoming power cables using compression lugs on top of
the isolation means or in an incoming line section. The compression lugs are available as an
option. The termination points are configured for NEMA® 2-hole drilling with 0.50 in. (12 mm)
hardware.
•
Lineups–Motorpact motor controllers can be part of a lineup that may include other controllers and
are fed by incoming line sections, metal-clad switchgear, or load-break switches.
NOTE: The total current requirements of all the controllers should not exceed the current rating of the
incoming cables or the horizontal main bus.
Terminations
Incoming Cables in Controllers (No Incoming Section)
Equipment
Description
Connected To
Top Entry
Bottom Entry
200, 400, 450 A controller
Isolation means
1-500 or 2-250 kcmil
1-500 or 2-250 kcmil
Yes
720 A controller
Isolation means
2-750 kcmil
Not available
Yes
Stress Cones *
*Indicates space for 8.0 kV rated stress cones only. Stress cones are not supplied by Schneider Electric.
22
© 2003—2006 Schneider Electric All Rights Reserved
4/2006
Motorpact™ Medium Voltage Motor Controllers
Controller Features and Accessories
Load Cables
Motorpact controllers provide complete front access to the load termination points. Load termination
points provide for either top or bottom entry of the load cables. Like the incoming power cable
connections, the load cable connections are designed for compression type lugs. Compression lugs are
available as an option. The termination points have NEMA 2-hole drilling with 0.50 in. (12 mm) hardware.
With Stress Cones *
Equipment
Description
Without Stress Cones
Top Exit
Bottom Exit
Top Exit
Bottom Exit
200, 400, 450 A
controllers
1-500 kcmil or
2-250 kcmil
1-500 kcmil or
2-250 kcmil
1-500 kcmil or
2-250 kcmil
1-500 kcmil or
2-250 kcmil
720 A controllers
1-1000 kcmil or
2-750 kcmil
1-1000 kcmil or
2-750 kcmil
1-1000 kcmil or
2-750 kcmil
1-1000 kcmil or
2-750 kcmil
* Indicates space for 8.0 kV rated prefabricated stress cones only. Stress cones are not supplied by Schneider Electric.
Incoming Cable Sections
Incoming cable sections are used to terminate incoming power cables and may contain service
metering equipment and/or surge protection equipment. Incoming cable sections are available in two
widths, with a depth of 37.25 in. (946 mm).
II
Incoming/Outgoing Cable Sections
Incoming
Entry
With
Metering
CTs
With
Lightning
Arresters
Bottom
9
Bottom
9
With Live
Line
Indicators
9
9
Bottom
Bottom
Maximum
Cables per
Phase
Minimum
Maximum
Cable kcmil Pull Box
(In./mm)
(Shielded)
4
1000
N/A
4
1000
N/A
4
1000
N/A
4
1000
N/A
Section
Width
(In./mm)
20.00/508 or
29.50/749
20.00/508 or
29.50/749
20.00/508 or
29.50/749
20.00/508 or
29.50/749
20.00/508 or
Bottom
9
9
9
6
750
N/A
Top
9
9
9
4
500 (note 6)
17.00/432
29.50/749
Top
9
9
6
500
10.00/254
29.50/749
Top
9
6
500
10.00/254
29.50/749
9
6
500
10.00/254
29.50/749
9
6
750
17.00/432
29.50/749
6
750
17.00/432
29.50/749
6
750
17.00/432
29.50/749
6
4/0
No
29.50/749
Top
Top
9
Top
9
Top
Top
9
29.50/749
1.
2.
3.
4.
Sections can be configured for 1200, 2000, or 3000 A main bus.
20.00 in. (508 mm) wide sections are configured for the left or right end of a controller or lineup only.
Top entry/exit is restricted when enclosure is arc resistant construction.
All 3000 A main bus sections require a 10.00 in. (254 mm) vent box on top that can be used as a pull box. A 17.00 in. (432
mm) high pull box may be used for additional cable space.
5. Table is based on shielded cables with 8.0 kV prefabricated stress cones. Larger diameter un-shielded cables may be used
in some cases.
6. N1 gasket enclosures require 17.00 in. (432 mm) high pull boxes.
7. 500 kcmil when conduit entry. 750 kcmil when overhead cable tray. (Restriction based on cable bending radius due to
current transformer.)
23
4/2006
© 2003—2006 Schneider Electric All Rights Reserved
Motorpact™ Medium Voltage Motor Controllers
Controller Features and Accessories
Options for Incoming Sections
NOTE: Widths may vary depending on options selected.
•
•
•
•
Lightning arresters (distribution, station class)
Single phase window type current transformers
Tin-plating for ground bus
Compression lugs
Load Break Switches
Controllers can be fed through an incoming fused or unfused load break switch. These switches are
available in both 600 and 1200 ampere ratings. The switch can be located on either end of the lineup
or in the middle as a tie switch for main-tie-main applications.
NOTE: Use HVL/cc for 40 kA applications and HVL for 61 kA.
HVL Load Interrupter Switch Ratings
Fault Current
Switch Width
Closing
(In./mm)
Asymetrical
(kA)
Continuous
Current
(Amperes)
Momentary
Current
Asymmetrical
(kA)
Current
Symmetrical
(kA)
60
600
40
25
40
60
1200
61
38
61
38.00/965
7.2
60
600
40
25
40
38.00/965
7.2
60
1200
61
38
61
38.00/965
Maximum
Voltage (kV)
BIL Rating
(kV)
5.5
5.5
38.00/965
HVL/cc Load Interrupter Switchgear
Maximum
Voltage (kV)
BIL Rating
(kV)
Continuous
Current
(Amperes)
Momentary
Current
Asymmetrical
(kA)
Current
Symmetrical
(kA)
Fault Current
Closing
Asymetrical
(kA)
5.5
60
600
40
25
40
5.5
60
1200
40
25
40
Switch Width
(In./mm)
14.75/375
20.00/508
29.50/749
29.50/749
14.75/375
7.2
60
600
40
25
40
7.2
60
1200
40
25
40
20.00/508
29.50/749
29.50/749
Low Voltage Control Area
Motorpact™ Controllers are provided with a low voltage (LV) control area. The hinged cover is suitable
for mounting motor protective relays and meters. Other human-machine interface (HMI) controls may
also be mounted on the cover.
The LV area contains a compartment for the internal wiring controls and the customer controls. The
control components are mounted on a LV pan suitable for mounting multiple devices. The pan is
painted white for high visibility.
A wireway is also provided as part of the LV area. The wireway is located on top of the controller
section and has three passages that are isolated from one another. The passages are intended to
separate control power, communications, and interconnect (unit-unit) control wiring. The top wireway
includes the customer terminal block for LV field wiring.
Customer terminal blocks for LV field wiring are 2-level compression-box connection style, rated 30 A
and 600 V. Internal connections are made by spring cage clamp style terminals, rated 10 A and 300 V.
Optional screw type terminals are available where applicable.
24
© 2003—2006 Schneider Electric All Rights Reserved
4/2006
Motorpact™ Medium Voltage Motor Controllers
Controller Features and Accessories
Terminal block
mounting bracket
Detail C
Customer TB
Top wireway
Sepam relay
Detail
A
Low voltage mounting pan
Low voltage door
(inside)
Operator panel harness
Iso switch harness
FuseLogic harness
LDA harness
Iso switch light harness
Detail
B
Right Side View
Low Voltage Control Area
To
heater harness
CPT/VT wire harness
contactor harness
CT/LPCT wire harness
cradle ground wire
Customer TB (top entry)
Customer
connection
CTs, VTs, CPTs,
heater, zero sequence resistor
To low voltage
door
3 (N.O./N./C.) contacts
(option)
To low voltage mounting plan
Detail A
Control power
3 (N.O./N./C.) contacts
(standard)
4 form C contacts
(standard)
4 form C contacts
(option)
FuseLogic 2 form C
contacts (option)
LDA 4 form C contacts
(option)
Low voltage compt ground
3 (N.O./N./C.) contacts
(option)
Contol power and
Iso switch light
3 (N.O./N./C.) contacts
(standard)
Ground bus
Low voltage ground bar
120 VAC test plug
Detail C
Low voltage compt ground
(to ground bus)
Detail B
Low Voltage Control Compartment
25
4/2006
© 2003—2006 Schneider Electric All Rights Reserved
Motorpact™ Medium Voltage Motor Controllers
Controller Features and Accessories
Typical Transition Section Arrangements
Model 4
ISO-flex
Transition
Section Motorpact
100.00"
HVL
Switch
90.30"
Transition
Section Motorpact
90.30"
90.00"
14.75"
14.75"
14.75"
20.00"
29.50"
Elevation View — Model 4 ISO-flex®
Elevation View — HVL Switch
HVL/cc
1200 A Main Transition
Top Entry
Section Motorpact
HVL/cc
1200 A Main Transition
Bottom Entry Section Motorpact
90.30"
90.00"
14.75"
14.75"
Elevation View — HVL/cc Main — App A
14.75"
20.00"
29.50"
Elevation View — HVL/cc Main — App B
HVL/cc
600 A
Transition Feeder
Motorpact Section
Top Exit
HVL/cc
600 A
Transition Feeder
Bottom Exit
Motorpact Section
90.00"
14.75"
20.00"
29.50"
90.30"
90.00"
14.75"
20.00"
29.50"
90.30"
14.75"
20.00"
29.50"
90.30"
90.00"
14.75"
20.00"
29.50"
14.75"
Elevation View — HVL/cc Feeder — App A
14.75"
Elevation View — HVL/cc Feeder — App B
Masterclad Transition
Switchgear Section Motorpact
Main Bus
95.00"
90.30"
Tie Bus
14.75"
14.75"
20.00"
29.50"
Elevation View — Masterclad™
26
© 2003—2006 Schneider Electric All Rights Reserved
4/2006
Motorpact™ Medium Voltage Motor Controllers
Controller Features and Accessories
Motorpact™ Reduced Voltage Soft Start (RVSS) Motor Control
Motorpact RVSS motor control units provide a pre-engineered, integrated motor control package for
reduced-voltage starting and soft stopping of three-phase medium voltage induction motors. Offered
as an alternative to traditional reactor or autotransformer type reduced voltage starters, the Motorpact
RVSS allows the user to fine-tune the starting parameters to meet a wide variety of unique load
conditions. The on-board user-friendly microprocessor provides the ability to select the proper
combination of initial current, maximum current, and ramp time resulting in a smooth, seamless load
acceleration while minimizing mechanical shock to system components.
The Motorpact RVSS is a microprocessor-based controller that provides the benefits of reduced
current inrush (and resulting voltage drop) and reduced mechanical shocks that can result from
starting a motor across the line. The SCR power modules (one for each phase) are used to provide
smooth acceleration and deceleration control of a three-phase ac induction motor. Control algorithms
are incorporated to control motor voltage, current, and torque output to ensure smooth rotation
throughout the starting ramp without mechanical instability at the end of starting.
The Motorpact RVSS uses voltage ramp with current limit to control motor torque performance. The
torque control provides accurate and repeatable acceleration and deceleration. This feature allows for
linear speed ramp without tachometer feedback and reduces the temperature rise of the motor.
Voltage
The RVSS offers very flexible starting, stopping, and protective features, therefore
commissioning requires that the customer provides important data during the order process.
The data required by the customer can be found in “Section 12–Commissioning” of instruction
bulletin no. 46032-700-04_. Start up service is available upon request.
Time
For more details about the Motorpact RVSS motor control units, see instruction bulletin
no. 46032-700-04_.
Benefits of Motorpact RVSS
Reduced torque during start:
•
•
aids in startup against damage to material in process.
can increase the life of machines and reduce downtime.
Reduced current peaks on the supply during starting
•
•
•
reduces plant capacity requirements.
reduces voltage sag on installations with limited capacity.
eliminates side effects on other equipment driven from a weak supply.
Smooth acceleration and deceleration independent of fluctuations in motor load
•
•
are ideally suited for most fans, centrifugal pumps, or other variable torque loads.
can eliminate water hammer, even on difficult pumping applications.
27
4/2006
© 2003—2006 Schneider Electric All Rights Reserved
Motorpact™ Medium Voltage Motor Controllers
Controller Features and Accessories
Advanced protection for the motor and the installation, including the following features:
ANSI®/IEEE
Number System Protection Features
19
Reduced voltage soft start
27
Under voltage
37
Undercurrent
46
Current imbalance
47
Phase rotation
48
Locked rotor/incomplete sequence
49
I2t electronic motor overload
50
Instantaneous electronic overcurrent trip
51
Overcurrent
55
Power factor trip
59
Over voltage protection
66
Starts per hour and time between starts
81
Frequency variance
86
Lockout/start inhibit
50N/51G/N
Ground fault detection, instantaneous and current (option)
49/38
Stator and bearing RTD protection (option)
14
Speed switch and tachometer trip (option)
Motorpact™ RVSS motor control units are available from 2300 through 7200 volts with horsepower
ranges to 5000 horsepower. The RVSS is available as a stand-alone starter or can be incorporated in
a lineup with other Motorpact units. The Indoor Type 1/Type 1A (gasketed units) are totally enclosed,
dead front constructions offering a high level of protection.
Non-load break isolation switch
Current limiting short circuit protection
– Class R power fuses
Vacuum bypass contactor
Control power transformer
– Primary fusing
– Secondary fusing
Vacuum isolation contactor
SCR module (per phase)
– 6 SCR, 12 SCR, or 18 SCR (model dependent)
– RC snubber dv/dt network (per SCR module)
Basic Features
Control
A central processing unit (CPU) provides the protection and control system for the motor and starter
assembly. The CPU controls the phase angle switching of the SCR modules to apply a reduced
voltage to the motor, causing the modules to ramp in voltage and current until the motor accelerates to
full speed. This lowers the inrush current of the motor, which reduces the stress on both the electrical
and mechanical systems.
28
© 2003—2006 Schneider Electric All Rights Reserved
4/2006
Motorpact™ Medium Voltage Motor Controllers
Controller Features and Accessories
Intermediate
phase
angles
Initial
phase
angle
Final
phase
angle
The CPU allows the starting method to be adjusted to meet the application, which the unit is
controlling. Four types of starting are available:
•
Voltage Ramp with Current Limit—Voltage is ramped via the SCR modules over time until the
motor reaches full speed/voltage
•
Current Ramp—Provides linear torque increase with closed current feedback PID loop to a
maximum current level
•
•
Constant Current—Current is applied at current limit and held there until the motor is at full speed
Tachometer Input—4–20 mA monitoring signal from the motor is supplied
Protection
The CPU incorporates a Dynamic Thermal Register system, which simulates the motor thermal state
by mathematical representation. The motor and controller temperatures are continuously calculated
based on the controller nominal current and the current that is actually drawn. Additionally, the cooling
curve of the motor is simulated through an electronic circuit that stores the thermal state of the motor,
even if the supply power is disconnected.
Keypad Interface
The Motorpact™ RVSS offers keypad display/programming and serial communications. A 2 line x 20
character LCD display with backlight provides easy readout of multiple motor data points.
Bypass Contactor
A bypass contactor is supplied on all units. This allows the motor current to bypass the SCR modules
once the RVSS has ramped to full voltage/speed. The use of the bypass contactor reduces the
temperature rise within the enclosure during steady state operation.
Technical Characteristics
Voltage
2300–7200 V
Frequency
50 or 60 Hz
BIL rating
60 kV
2300 V to 1500 hp
Horsepower range
3300 V to 2250 hp
4160 V to 2750 hp
6900 V to 5000 hp
125%—Continuous
Unit overload capacity
500%—60 Seconds
600%—30 Seconds
Power circuit
6 SCRs, 12 SCRs or 18 SCRs (model dependent)
SCR peak inverse voltage ratings
6500–21000 V (model dependent)
Transient voltage protection
RC snubber dv/dt network (one per module)
29
4/2006
© 2003—2006 Schneider Electric All Rights Reserved
Motorpact™ Medium Voltage Motor Controllers
Controller Features and Accessories
Technical Characteristics
0° to 40° C
Ambient
5–95% relative humidity
Approvals
UL recognized
0–3300 ft
Motor Protection Functions
Overcurrent
Undercurrent
Current imbalance
Two stage overload
Reset
Start-per-hour
Trip Level: 100 to 300% of motor FLA
Trip Delay: 1–20 seconds
Trip Level: 10 to 90% of motor FLA
Trip Delay: 1–60 seconds
Trip Level: 5 to 30% of phase current
Trip Delay: 1–20 seconds
Starting: Programmable class 5 through 30
Run: Programmable class 5 through 30
Manual
Automatic
Range: 1 through 6 starts per hour
Time between starts: 1–60 minutes
Metering Functions
Motor load
Percent of FLA
Phase current
Current data
Average current
Ground fault current (optional)
Thermal data
Thermal capacity remaining
Thermal capacity to start
Average start time
Start data
Average start current
Capacity to start
Elapsed time from last start
RTD data
Up to 12 RTDs
Kilowatts
Metering
Kilovars
Power factor
Kilowatt hours
Serial Communication
Protocol
Modbus® RTU
RS-485
Signal
RS-422
RS-232
30
© 2003—2006 Schneider Electric All Rights Reserved
4/2006
Motorpact™ Medium Voltage Motor Controllers
Controller Features and Accessories
HMI
LCD display
2 x 20 character (backlight)
Keypad
8 function keys with tactile feedback
12 LEDs
Power
Status indications include:
Run
Alarm
Trip
Auxiliary relay indication
Shorted SCR
Phase loss
Shunt trip
Phase imbalance
Fault display
Overload
Over temperature
Overcurrent
Short circuit
Load loss
Undervoltage
Coast downtime
Lockout display
Starts per hour
Time between starts
Programmable Outputs
Rating
DPDT, 4 A, 240 Vac
Run
Programmable
At speed
Programmable
Voltage ramp (VR) or current ramp (CR)
Acceleration
Starting torque: 0–100% line voltage (VR) or 0–600% FLA
(CR)
Ramp time: 1–120 seconds
Current limit: 200–600% (VR or CR)
Begin decel level: 0–100% line voltage
Deceleration
Stop level: 0–1% less than begin decel level
Decel time: 1–60 seconds
31
4/2006
© 2003—2006 Schneider Electric All Rights Reserved
Motorpact™ Medium Voltage Motor Controllers
Controller Features and Accessories
PowerLogic® Sepam Series 20/40/80 Protection Units
Whether you are looking for a simple protection relay or a multifunctional communicating protection
unit for remote network management and operation, you will find the right solution in the new
PowerLogic Sepam Series 20/40/80 protection devices.
Features and Benefits
Complete line of protective
relays
Motor, feeder, generator, transformer, and bus protection, all in a common relay family.
Preventative maintenance alerts
Self-diagnostics for protection assurance and external diagnostics for breaker, CT/VT, and
trip coils.
Customizable protective settings
Adaptive logic editor in Series 40 and 80 utilizes Boolean logic, allowing users to adapt standard
control functions to suit varying needs of a power system.
Intuitive graphic display
Graphic LCD display features back-light with auto contrast adjustment and allows user access to
operational and diagnostic information, power measurements and alarms, as well as passwordprotected setup.
Zone selective interlocking
Accelerated coordination between protection devices to minimize equipment damage.
Power monitoring functionality
Series 40 and 80 relays include power monitoring functionality to assist in managing the
electrical system.
Global offer
Sepam relays are available and strongly supported by Schneider Electric around the world.
Product Applications
The Sepam family of protection and metering units is designed for the operation of machines and
electrical distribution networks. It consists of complete, simple, and reliable solutions, suited to the
applications below.
For the protection against internal faults, system faults, and load faults
Motor: M Type
Monitoring of motor starting conditions
For the protection of long motor feeders with high capacitance
For the protection against phase-to-phase and phase-to-ground short circuits
Substation: S Type
Detection of unbalanced power source
Recloser
For the protection of systems with parallel mains or closed feeder loops
Generator: G Type
For the protection against internal faults, system faults, and abnormal operating conditions
Monitoring of generator and prime mover
For the protection against internal faults and overloads
Transformer: T Type
Thermal overload protection suited to cooling modes
For the protection of systems with transformer mains in parallel
Detection of variations in power system voltage or frequency
Detection of mains loss with dF/dt (Rate of change of frequency)
Sepam design integrates the results of an in-depth dependability study for maximum reliability
Busbar: B Type
Optimized to provide the best possible protection while maintaining secure operation
Comprehensive self-testing sequence monitors internal health with contact position switching
and Watchdog® relay indication
Exceptional withstand to environmental electromagnetic disturbances
32
© 2003—2006 Schneider Electric All Rights Reserved
4/2006
Motorpact™ Medium Voltage Motor Controllers
Controller Features and Accessories
Modular Platform—S20/40
Sepam may be functionally enhanced at any time by the addition of optional modules to adapt to many
situations and allow for subsequent installation upgrades.
•
Base unit, with various User/Machine Interface (UMI) Levels:
— Basic UMI
— Advanced UMI with fixed or remote graphic LCD display
•
•
•
•
•
Inputs/outputs extension module (Base 4 outputs + max 4 outputs/10 inputs)
Connection module for Modbus® communication network
Temperature acquisition module for transformers or motors
Analog output module
Software tools
— Sepam parameters and protection settings, control logic customization
— Fault recording display
Modular Platform—S80
Sepam may be functionally enhanced at any time by the addition of optional modules to adapt to as
many situations as possible and allow for subsequent upgrading of the installation.
•
Base unit, with:
— No local front interface with optional remote advanced user/machine interface (UMI) with
graphic LCD display
— Integral advanced UMI with fixed graphic LCD display
•
•
Inputs/outputs extension module (Base 5 outputs + max 18 outputs/42 inputs)
•
•
•
Temperature acquisition module for transformers or motors
Two ports for connection via 2-wire, 4-wire, or fiber optic module for Modbus communication
network
Analog output module
Software tools
— Sepam parameters and protection settings, control logic customization
— Fault recording display
33
4/2006
© 2003—2006 Schneider Electric All Rights Reserved
Motorpact™ Medium Voltage Motor Controllers
Controller Features and Accessories
NOTE: The figures below indicate the number of relays available for each protection function.
Protection
ANSI®
code
Phase overcurrent
50/51
S20 S40 S41 S42 S82 T20 T40 T42 T87 M20 M41 M87 G40 G87 G88 B21 B22
4
4
4
4
8
4
4
4
8
4
4
8
4
8
8
50N/51N
Ground fault/sensitive ground fault
(or G)
4
4
4
4
8
4
4
4
8
4
4
8
4
8
8
Unbalance/negative sequence
46
1
2
2
2
2
1
2
2
2
1
2
2
2
2
2
Thermal overload
49 RMS
2
2
2
2
2
2
2
2
2
2
Thermal overload for cables
49C RMS
Breaker failure
50BF
1
1
1
1
1
1
1
1
1
1
1
Directional real overpower
32P
1
1
2
2
1
2
1
2
2
Directional ground fault
67N/67NC
2
2
2
2
2
2
2
2
Directional phase overcurrent
67
2
2
2
Voltage restrained overcurrent
50 V/51 V
1
2
2
Directional reactive overpower
32Q/40
1
1
1
1
1
2
1
Phase undercurrent
37
1
1
1
Locked rotor, excessive start time
48/51/LR/14
1
1
1
1
1
1
Starts per hour
66
Restricted earth fault
64REF
2
2-winding transformer differential
87T
1
Machine differential
87M
2
1
1
1
2
2
1
1
1
Overfluxing (V/Hz)
24
Field loss (underimpedance)
40
2
Pole slip
78PS
1
1
1
Overspeed (2 set points) (note 2)
12
d
d
d
Underspeed (2 set points) (note 2) 14
d
d
d
21B
1
1
Inadvertent energization
50/27
1
1
100% stator earth fault
64G2/27TN
2
2
Positive sequence undervoltage
27D
2
2
2
2
2
2
2
2
Remanent undervoltage
27R
2
2
1
2
2
2
1
1
2
2
Underimpedance
Undervoltage
27/27S
2
2
2
4
2
2
4
2
4
2
4
4
Overvoltage
59
2
2
2
4
2
2
4
2
4
2
4
4
Neutral voltage displacement
59N
2
2
2
2
2
2
2
2
2
2
2
2
Negative sequence overvoltage
47
1
1
1
2
1
1
2
1
2
1
2
2
Overfrequency
81H
2
2
2
2
2
2
2
2
2
2
2
2
1
1
Underfrequency
81L
4
4
4
4
4
4
4
4
4
4
4
4
2
2
Recloser (4 cycles)
79
d
d
d
d
Temperature monitoring
(8 or 16 RTDs)
38/49T
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
Thermostat / Buchholz
26/63
Phase-to-phase undervoltage
27
2
2
Phase-to-neutral undervoltage
27S
1
1
Phase-to-neutral overvoltage
59
2
2
Rate of change of frequency
81R
d
1
c Standard
d According to settings and optional modules
(1) Protection functions with two groups of settings
(2) According to parameter setting and optional MES120 input/output modules
(3) With optional MET148-2 temperature input modules
(4) With ACE949-2 (2-wire RS 485), ACE959 (4-wire RS 485), or ACE937 (fiber optic) communication interface
34
© 2003—2006 Schneider Electric All Rights Reserved
4/2006
Motorpact™ Medium Voltage Motor Controllers
Controller Features and Accessories
S20
S40 S41 S42 S82 T20 T40 T42 T87 M20 M41 M87 G40 G87 G88 B21 B22
Metering/Monitoring
RMS phase and residual currents
c
c
c
c
Calculated residual current
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
Average current I1, I2, I3
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
Peak demand current per phase
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
Measured residual current
c
c
c
c
Voltage U21, U32, U13, V1, V2, V3
c
c
c
c
c
c
c
c
c
c
c
c
c
c
Residual voltage Vo
c
c
c
c
c
c
c
c
c
c
c
c
c
c
Positive sequence voltage Vd/rotation direction
c
c
c
c
c
c
c
c
c
c
c
c
c
c
Negative sequence voltage Vi/rotation direction
c
c
c
c
c
c
c
c
c
c
c
c
Frequency
c
c
c
c
c
c
c
c
c
c
c
c
c
c
Real/reactive/apparent power P, Q, S
c
c
c
c
c
c
c
c
c
c
c
c
Peak demand real/reactive power PM, QM
c
c
c
c
c
c
c
c
c
c
c
c
Power factor
c
c
c
c
c
c
c
c
c
c
c
c
Calculated real/reactive energy (± Wh, ± VARh)
c
c
c
c
c
c
c
c
c
c
c
c
Real/reactive energy pulse count
(± Wh, ± VARh)
d
d
d
d
d
d
d
d
d
d
d
d
c
c
c
Phase current I'1, I'2, I'3 RMS
c
c
c
Calculated residual current I'0S
c
c
c
c
d
d
d
d
c
c
Temperature measurement
d
d
d
d
d
d
Rotation speed (2)
d
d
d
Neutral point voltage Vnt
Network and Machine Diagnosis
Tripping current TripI1, TripI2, TripI3, TripIo
c
Tripping context
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
Phase fault and earth fault trip counters
Unbalance ratio/negative sequence current
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
Harmonic distortion (THD), current and voltage
lthd, Uthd
c
c
c
c
c
Phase shift Ø0, Ø1, Ø2, Ø3
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
Thermal capacity used
c
c
c
c
c
c
c
c
c
c
c
Remaining operate time before overload
tripping
c
c
c
c
c
c
c
c
c
c
c
Waiting time after overload tripping
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
Disturbance recording
c
Running hours counter/operating time
Starting current and time
Start inhibit delay, number starts before inhibit
Unbalance ration/negative sequence current I'i
c
c
c
c
Differential current Idiff1, Idiff2, Idiff3
c
c
c
c
Through current It1, It2, It3
c
c
c
c
Current phase displacement
c
c
c
c
Apparent positive sequence impedance Zd
c
c
c
c
c
Apparent phase-to-phase impedance Z21, Z32,
Z13
c
c
c
c
c
c
c
Third harmonic voltage, neutral point or residual
The figures indicate the number of relays available for each protection function.
c Standard
d According to settings and optional modules
(1) Protection functions with 2 groups of settings
(2) According to parameter setting and optional MES120 input/output modules
(3) With optional MET148-2 temperature input modules
(4) With ACE949-2 (2-wire RS 485), ACE959 (4-wire RS 485) or ACE937 (fiber optic) communication interface
35
4/2006
© 2003—2006 Schneider Electric All Rights Reserved
Motorpact™ Medium Voltage Motor Controllers
Controller Features and Accessories
ANSI®
code
S20 S40 S41 S42 S82 T20 T40 T42 T87 M20 M41 M87 G40 G87 G88 B21 B22
Switchgear Diagnosis
Cumulative breaking current
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
Trip circuit supervision
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
c
c
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
c
c
c
c
c
c
c
c
c
c
c
c
c
c
Auxiliary power supply monitoring
c
Number operations, operate time,
charge time
Number of racking out operations (2)
c
d
Current transformer (CT)/voltage
transformer (VT) supervision
c
d
d
d
c
d
c
c
c
c
c
c
c
c
c
c
c
Control and Monitoring
Circuit breaker/contactor control
94/69
d
d
d
Load shed/auto restart/de-excite/Grp
shutdown
c
Latching/acknowledgment
86
Logic discrimination
68
c
c
c
c
d
d
d
d
Switching of group of settings
c
c
c
Logical equation editor
c
c
c
Measurement readout
d
d
Remote indication and time tagging
of event
d
Remote control orders
Remote setting of protections
Transfer of disturbance recording
data
Modbus®
d
c
c
c
d
d
d
c
c
c
c
c
d
d
d
d
d
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
Communication
Self-diagnosis
Watchdog®
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
Output relay test
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
d
The figures indicate the number of relays available for each protection function.
c Standard
d According to settings and optional modules
(1) Protection functions with 2 groups of settings
(2) According to parameter setting and optional MES120 input/output modules
(3) With optional MET148-2 temperature input modules
(4) With ACE949-2 (2-wire RS 485), ACE959 (4-wire RS 485) or ACE937 (fiber optic) communication interface
Load Discharge Assembly
An optional Load Discharge Assembly (LDA) is available with Motorpact™ controllers. The LDA is
used to ground the load cables. It is mechanically interlocked with the isolation means (disconnector)
and is operated using the same handle. The LDA is a spring operated quick-make device capable of
making 5 kA symmetrical current at 7.2 kV up to five times. The LDA is not a system grounding switch.
It is not capable of closing in on the full fault current that could be available on a system. The LDA is
mounted in the load box and is a maintenance-free device.
36
© 2003—2006 Schneider Electric All Rights Reserved
4/2006
Motorpact™ Medium Voltage Motor Controllers
Controller Features and Accessories
Load Discharge Assembly
Live Line Indicators
Live Line Indicator (LLI) lights are connected by a capacitive circuit to the line or load side of main bus
bars. LLI lights will indicate voltage when the equipment is energized. Test ports on the LLIs are
suitable for testing voltage with a properly rated voltage sensing device. LLIs are not a replacement for
voltage indication when working on or inside the equipment. Use properly rated test equipment to
ensure no voltage is present before performing any maintenance procedures.
Neon (light)
Test Port
Note: As soon as the circuits have been energized
the voltage indicator lamps should illuminate.
Live Line Indicator
Power Factor Correction Capacitors
A majority of the total load connected to industrial power systems is inductive and has a low operating
power factor. This type of load results in poor electrical efficiency, higher electrical costs, and extra
burden on the power system. Properly selected and installed Power Factor Correction Capacitors
(PFCCs) provide an economical means of improving system power factor. The table below provides an
estimated PFCC size in kVAR for a motor based on horsepower and speed. Capacitors must be carefully
sized when switched with a motor since overvoltages and transients may occur if the capacitor kVAR
exceeds the motor magnetizing current.
NOTE: The motor manufacturer determines maximum kVAR value for the motor. Appropriate kVAR
size is dependent on system parameters.
Schneider Electric can only supply estimated kVAR size based on the motor horsepower unless a
system study is performed.
37
4/2006
© 2003—2006 Schneider Electric All Rights Reserved
Motorpact™ Medium Voltage Motor Controllers
Controller Features and Accessories
Estimated PFCC Selection (Based on Horsepower and Motor Speed)
Nominal Motor Speed (RPM)
3600
1800
1200
900
720
600
HP
kVAR
% AR
kVAR
% AR
kVAR
% AR
kVAR
% AR
kVAR
% AR
kVAR
% AR
100
25
7
25
10
25
10
25
11
25
12
25
17
150
25
7
25
9
25
9
25
10
50
11
50
15
200
25
7
25
8
50
8
50
9
50
11
50
15
250
50
7
50
6
50
8
50
9
75
10
75
14
300
50
7
50
5
75
5
75
9
75
10
100
14
350
50
6
50
5
75
5
75
9
75
9
100
12
400
50
5
50
5
75
5
100
9
100
9
100
11
450
75
5
50
5
75
5
100
8
100
9
100
10
500
75
5
75
5
100
5
125
8
125
8
125
8
600
75
5
100
5
100
5
125
7
125
8
125
8
700
100
5
100
5
100
5
125
7
150
8
150
8
800
100
5
125
5
125
5
150
7
150
8
150
8
900
125
5
200
5
200
5
200
6
250
7
250
7
1000
150
5
250
5
250
5
250
6
250
7
250
7
1250*
200
5
250
5
250
5
300
6
300
6
300
6
* If horsepower is above 1250, please contact Schneider Electric’s Technical Assistance Group (TAG).
The percentage AR value shown in the table above is the percent ampere reduction required for the
overload setting when PFCCs are connected after the overload protective device such as at the motor.
PFCCs in Motorpact™ controllers are connected ahead of the overload, so this reduction is not required.
NOTE: PFCCs should always be connected to the line side of autotransformers and soft starts.
Surge Protection
Lightning or switching may cause surge voltages on a system that may result in damage to a motor.
The surge can be limited by using two methods either individually or together.
A surge arrester (SA) is a protective device that limits surge voltages by diverting the surge current.
SAs are only operational when a predetermined voltage level is reached. At that time, the device
activates and diverts the current to ground through a resistance; therefore, clamping the voltage at a
predetermined level. Two classes of surge arresters are available in Motorpact lineups: distribution and
station class designs.
NOTE: Incoming sections and controllers have mounting provisions for line and load side locations.
38
© 2003—2006 Schneider Electric All Rights Reserved
4/2006
Motorpact™ Medium Voltage Motor Controllers
Controller Features and Accessories
DT1 Temperature Monitoring Module (450 A and Below Option)
The DT1 module continuously monitors power circuit temperature build-up, measuring it in relation to
the ambient temperature. When overheating occurs, indicating the presence of an abnormal resistance
in the power circuit, the module triggers an alarm.
The DT1 module monitors conductor temperature in two 3-point zones. Each zone provides sensor
inputs to the low-voltage module. These inputs are optically isolated. Sensors are located at the top
fuse holders and (as an option) may be located at the load terminals. These are factory determined
positions. Two alarm levels are available on the module.
Connects the two
CFO733 sensors
Green power ‘on’ indicator
and red 'wrench' fault indicator
6 red indicators identifying the
sensor (zone A or B) and the
circuit/sensor at the origin of
the alarm
Temperature buildup
setting switches
Ambient temperature
correction setting switch
‘Off’ setting if the
sensor is not
connected
Terminals 25
and 26
not used
24-250 Vdc and 110-240 Vac
power supply correction
terminals
Lead-sealing
of transparent cover
Module earthing terminal
via green/yellow wire
(PE, safety of personnel)
NOTE: The module's screw type connectors can receive 2-wire
with maximum cross-section 0.2 to 2.5 mm (AWG 24-12)
with or without fittings.
5-relay output dry contact
connection terminals
‘PRE-ALARM’ (1N.O., 20-21)
‘ALARM' (1 N.C./N.O.; 22-23-24)
DT1 Temperature Monitoring Module
Optical Sensor
Plug-in module
Processing
electronics
Optical probe
LED
Plastic optical fibers
Ruby
Excitation signal
Detector
Filter
Fluorescence signal
DT1 Module Operation
39
4/2006
© 2003—2006 Schneider Electric All Rights Reserved
Motorpact™ Medium Voltage Motor Controllers
Dimensions
DIMENSIONS
Top and Floor Plan Drawings
All dimensions in this section are given in inches (millimeters).
Medium voltage cable conduit area
1.38
(35)
D
2.38
(60)
E
(2) 0.51 (13 mm) x 0.79 (20 mm)
IEC mounting angle
1.00 Typ.
(25)
1.00
(25)
A
1.38
(35)
3.00
(76)
2.00
(51)
1.25
(32)
6.00
(152)
6.00
(152)
33.00
(838)
Type 1/1A
Medium voltage
cable conduit area
2.00
(51)
Medium voltage
cable conduit area
with both outgoing
and incoming
20 in. (508 mm) and
29.50 in. (749 mm)
width only
37.37
(949)
.75
(19)
Customer control
conduit area
2.00
(51)
7.00
(178)
1.34
(34)
6.38
(162)
8.00
(203)
Door edge
(front)
3.56
2.56 (90)
(65)
3.75
(95)
3.63
(92)
2.00
(51)
A
Roof Plan
A
Cabinet Width
In. (mm)
B
IEC
In. (mm)
IN
B
37.00
(940)
IEC
39.28
(998)
OUT
11.37
(289)
Customer control conduit area
B
C
(2) 0.87 (22 mm) x 1.42 (36 mm)
(4) mounting locations
use 3/8-16 (M10) bolts and washers
Floor Plan
C
NEMA
In. (mm)
D
In. (mm)
E
In. (mm)
F
In. (mm)
G
In. (mm)
14.75 (375)
7.25 (184)
7.50 (191)
12.00 (305)
10.00 (254)
20.00 (500)
12.50 (318)
12.75 (324)
17.25 (438)
15.25 (387)
17.25 (438)
1.25 (32)
29.50 (749)
22.00 (559)
22.25 (565)
12.00 (305)
24.75 (629)
26.75 (679)
2.75 (70)
Full Voltage Non-Reversing Controller, 450 A
40
© 2003—2006 Schneider Electric All Rights Reserved
4/2006
Motorpact™ Medium Voltage Motor Controllers
Dimensions
1.38
(35)
(2) 0.51 (13 mm) x 0.79 (20 mm)
2.38
(60)
1.38
(35)
1.38
(35)
IEC mounting angle
Medium voltage cable conduit area
3.00
2.00
(76)
(51)
12.00
(305)
1.00 Typ.
(25)
1.00
(25)
6.00
(152)
Medium voltage
cable conduit area
6.00
(152)
33.00
(838)
Type 1/1A
4.20
(107)
37.00
(940)
IEC
39.28
(998)
2.00
(51)
.75
(19)
12.00
(304.8)
Customer control
conduit area
2.00
(51)
7.00
(178)
1.34
(34)
6.38
(162)
Door edge
(front)
37.37
(949)
8.00
(203)
3.56
2.56 (90)
(65)
3.75
(95)
3.63
(92)
2.00
(51)
29.50 (749)
Roof Plan
11.37
(289)
Customer control conduit area
22.00
(559)
22.25
(565)
(2) 0.87 (22 mm) x 1.42 (36 mm)
(4) Mounting locations
use 3/8-16 (M10) bolts and washers
Floor Plan
Full Voltage Non-Reversing Controller and Full Voltage Reversing Controller, 720 A (Bottom Exiting Load Cables)
1.38
(35)
2.38
(60)
1.38
(35)
1.38
(35)
(2) 0.51 (13 mm) x 0.79 (20 mm)
12.00
(305)
IEC mounting angle
1.00 Typ.
(25)
1.00
(25)
3.00
(76)
2.00
(51)
6.00
(152)
Medium voltage
cable conduit area
33.00
(838)
Type 1/1A
37.00
(940)
IEC
39.28
(998)
37.37
(949)
Customer control
conduit area
2.00
(51)
7.00
(178)
1.34
(34)
6.38
(162)
Door edge
(front)
2.00
(51)
.75
(19)
8.00
(203)
29.50 (749)
Roof Plan
2.00
(51)
3.56
2.56 (90)
(65)
3.75
(95)
3.63
(92)
11.37
(289)
Customer control conduit area
22.00
(559)
22.25
(565)
(2) 0.87 (22 mm) x 1.42 (36 mm)
(4) Mounting locations
use 3/8-16 (M10) bolts and washers
Floor Plan
Full Voltage Non-Reversing Controller, 720 A (Top Exiting Load Cables)
41
4/2006
© 2003—2006 Schneider Electric All Rights Reserved
Motorpact™ Medium Voltage Motor Controllers
Dimensions
3.88
(98)
Medium voltage cable conduit area
11.00
(279)
2.38
(60)
(2) 0.51 (13 mm) x 0.79 (20 mm)
15.25
(387)
IEC mounting angle
1.00 Typ.
(25)
3.00
(76)
(6) 0.56 (14 mm)
33.00
(838)
Type 1/1A
2.00
(51)
37.00
(940)
IEC
39.29
(998)
.75
(19)
Customer control
conduit area
7.00
(178)
26.00
(660)
37.37
(949)
2.00
(51)
7.38
(187)
6.38
(162)
8.00
(203)
2.00
(51)
20.00
(508)
3.56
2.56 (90)
(65)
3.75
(2) 0.87 (22 mm)
(95)
x 1.42 (36 mm)
3.63
(92)
12.50 IEC
(318)
4.37
(111)
Customer control conduit area
(4) mounting locations
use 3/8-16 (M10) bolts and washers
12.75 Type 1/1A
(324)
Floor Plan
Roof Plan
Incoming Section, 20.00 In. (508 mm) Wide
(246)
2.74
(70)
2.38
(60)
24.00
(610)
(279)
24.75
(629)
(2) 0.51 (13 mm) x 0.79 (20 mm)
IEC mounting angle
1.00 Typ.
(25)
3.25
(83)
Medium voltage
cable conduit area
5.00
(127)
(6) 0.56 (14 mm)
14.00
(356)
33.00
(838)
Type 1/1A
2.00
(51)
37.00
(940)
IEC
.75
(19)
39.30
(998)
7.00
(178)
26.00
(660)
37.30
(947)
2.00
(51)
7.37
(187)
6.38
(162)
Customer control
conduit area
8.00
(203)
2.00
(51)
29.50
(749)
Roof Plan
3.56
2.56 (90)
(65)
3.75
(95)
3.63
(92)
(2) 0.87 (22 mm)
x 0.79 (20 mm)
22.00 IEC
(559)
22.25 Type 1/1A
(565)
4.38
(111)
Customer control conduit area
(4) mounting locations
use 3/8-16 (M10) bolts and washers
Floor Plan
Incoming Section, 29.50 In. (749 mm) Wide
42
© 2003—2006 Schneider Electric All Rights Reserved
4/2006
Motorpact™ Medium Voltage Motor Controllers
Dimensions
90.60 (2300)
Autotransformer
and Start
Contactor
K3
RVAT
Controller Bay
29.50 (749)
37.3 (947,40)
Reduced Voltage Autotransformer
90.60 (2300)
Autotransformer
and Start
Contactor
K3
Controller Bay
RVAT
A
37.30 (947,40)
A
Cabinet Width (In./mm)
Enclosure 1125
44.25/1124
Enclosure 1500
59/1498.6
Reduced Voltage Autotransformer
43
4/2006
© 2003—2006 Schneider Electric All Rights Reserved
Motorpact™ Medium Voltage Motor Controllers
Dimensions
90.60 (2300)
Motorpact
Soft Start
RVSS
Controller Bay
29.50 (749)
37.30 (947,40)
Reduced Voltage Soft Start
Type 3R Outdoor Top and Floor Plan Drawings
30.10 (764,20)
57 (1445,20)
8 (202)
Ref.
Center of
Gravity
103.20 (2622)
101.30 (2572)
13.80
(351,40)
52 (1321)
23.30 (591)
49.60 (1260)
4.30 (108.10)
Ref.
(Door Front)
Side View
37 (935,60)
Front View–Single Bay
Shipping Split Lug
29.60 (752)
Front View–Lineup
Type 3R FVR/FVNR Controller
44
© 2003—2006 Schneider Electric All Rights Reserved
4/2006
Motorpact™ Medium Voltage Motor Controllers
Dimensions
12 (305)
6 (152,40)
12 (305)
6 (152,40)
1.40 (35)
Typ.
4.70 (119)
25 (635)
12 (305)
2 (51)
2 (51)
7 (178)
7 (178)
5.20 (133)
12 (303)
11.90 (303)
14.30 (362)
14.30 (362)
29.60 (752)
Cubicle Width
29.60 (752)
Cubicle Width
720 A
450 A
Type 3R 450 and 720 A Controllers, Plan View
11 (279,40)
7 (178)
26 (660,40)
2 (50,80)
2 (50,80)
7 (178)
7 (178)
3 (76,20)
11.90 (303)
11.90 (303)
14.30 (362)
14.30 (362)
29.60 (752)
Cubicle Width
29.60 (752)
Cubicle Width
Incoming
Auxiliary
Type 3R Controllers, Incoming and Auxiliary Sections
45
4/2006
© 2003—2006 Schneider Electric All Rights Reserved
Motorpact™ Medium Voltage Motor Controllers
Dimensions
57 (1445,20)
8 (201,70)
Ref.
101.30 (2571,80)
103.20 (2622)
48 (1216,60)
4.30 (108,80)
Ref.
(Door Front)
49.60 (1258,60)
Type 3R RVAT/RVSS Side View
59.60 (1513,60)
25 (635)
59.20 (1503,70)
66.20 (1680,30)
Type 3R RVAT/RVSS Front View, 29.50 In. (749 mm) Wide
46
© 2003—2006 Schneider Electric All Rights Reserved
4/2006
Motorpact™ Medium Voltage Motor Controllers
Dimensions
Typ
74.30 (1888)
28 (711,20)
74 (1877,10)
81.10 (2059,30)
Type 3R RVAT Front View, 44.25 In. (1125 mm) Wide
89.10 (2262,70)
34 (863,60)
88.70 (2253,40)
Type 3R RVAT Front View, 59.00 In. (1500 mm) Wide
47
4/2006
© 2003—2006 Schneider Electric All Rights Reserved
Schneider Electric USA
330 Weakley Road
Smyrna, TN 37167 USA
1-888-Square D
1-888-778-2733
www.us.SquareD.com
8198CT0201R11/05 © 2003—2006 Schneider Electric All Rights Reserved
Replaces 8198CT0201R6/04, dated 3/05.
4/2006