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Square D® Services
If your power equipment isn’t performing, your plant isn’t performing.
Square D Services from Schneider Electric can help. Our experienced
factory-trained technicians and engineers know how to get the most
out of your power equipment.
By using proven technology like Masterpact® replacement circuit
breakers, our team can revitalize aging equipment in record time, no
matter the make and model.
From equipment start-up to problem analysis to corrective action and
custom solutions, Square D Services will turn your equipment into your
most reliable employee.
Emergency Services and Disaster Recovery
1-888-778-2733 „ 24 hours/day - 7 days/week
Engineering Services
„ Arc Flash Analysis
„ Power Consulting
„ Project Engineering/Custom Designs
„ Electrical Systems Analysis
„ Power Quality Correction
What Can Square D Services Do
for You?
„ Circuit Loading Study
Solutions that address NFPA 70E
Standards and promote workplace safety
„ Remote Power Management
Services for power distribution,
automation and control equipment
„ Harmonics Assessment
„ Energy Management Assessment
„ Ungrounded to High Resistance Conversion
Solutions designed to reduce downtime,
improve reliability, extend equipment life
„ Project Management
Asset management
Maintenance and Testing Services
Engineering talent for all major
OEM brands
Nationwide services network
„ Relay and Metering Calibration
„ On-site Preventive Maintenance
„ Infrared Testing
„ Monitoring Systems
„ Service Agreements
„ Spare Parts
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Square D® Services
New Installation Services
„ Start-Up Services
„ Installation Coordination
„ On-site Training
„ Turnkey Capabilities
„ Project Management
„ Site Measurement Services
„ Infrared Viewing Window
MV/LV Retrofit and Upgrade Services
„ Direct Replacement Circuit Breakers
„ Reconditioning Program for Circuit Breakers
„ Retrofill Solutions
Manufactured Products
„ Station Breakers
„ Circuit Breaker Conversion to Vacuum Starter
„ Network Protectors
„ Trip Unit Retrofits
Legacy Equipment*
„ Power-Zone (PZ 1, 2, 3)/Low Voltage
Switchgear
„ Relay and Metering Retrofits
„ BOLT-LOC Switches
„ Switchgear Expansions and Upgrades
„ Drives/Soft Starts
„ Low Voltage MCC Replacements
„ Remote Racking Systems
U.S. Service Locations
Cincinnati, OH
(513) 755-4445
East Haven, CT
(203) 468-7555
Minneapolis, MN
(877) 737-7697
St. Louis, MO
(636) 257-8200
Atlanta, GA
(770) 447-0351
Cleveland, OH
(440) 746-3190
Fairfield, CA
(707) 447-9122
Philadelphia, PA
(610) 631-6701
Tampa, FL
(800) 306-4737
Baltimore, MD
(410) 847-1350
Dallas, TX
(972) 471-6181
Greenville, SC
(864) 963-4105
Portland, OR
(503) 786-6421
Boston, MA
(781) 232-1300
Denver, CO
(303) 639-6635
Houston, TX
(713) 690-6882
Raleigh, NC
(888) 737-9898
Chicago, IL
(219) 661-2885
Detroit, MI
(248) 619-1013
Los Angeles, CA
(714) 566-6400
Richmond, VA
(804) 281-7274
©2007 Schneider Electric. All rights reserved.
mr
Appleton, WI
(877) 737-7697
*Contact the services location closest to you for a complete list of available legacy equipment
For more information on Square D Services, visit www.squared-services.com
Schneider Electric - North American Operating Division
1415 S. Roselle Road
Palatine, IL 60067
Tel: 847-397-2600
Fax: 847-925-7500
Order Number 0180HO0601R5/07
SQUARE D SERVICES
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Square D Engineering Services
®
Power System Engineering For Electrical Distribution Systems
®
Square D Engineering Services:
Power System Engineering For
Electrical Distribution Systems
Electrical systems are serious business
and you want serious professionals
who can give you solid advice and
recommendations to ensure safe,
reliable and continuous power. The
Square D Engineering Services team
is as serious as they come.
Since 1966, we’ve completed over
thousands of systems studies for
clients throughout the world. Our team
consists of registered Professional
Engineers, leaders of several IEEE
committees and a variety of industry
recognized experts, many of whom
have published technical articles in
numerous industry publications.
E n g i n e e r i n g S e r vices also has
project management professionals,
centralized engineering studies and
d e s i g n t e a m s, a n d r e g i o n a l l y
assigned project engineers. These are
professionals you can count on for
consistent
engineering
studies,
designs and analysis, thanks to our
Engineering Study Standards. These
standards are in place so that all
projects for your facilities are
executed using the same processes
and systems no matter how many
locations you have.
What does all that mean for you?
It means that whether it’s a Harmonics
Assessment at the plant next door
or concurrent Arc Flash Analyses
at multiple locations, you can feel
confident in our team and our company
to get the job done.
Benefits
Arc Flash Analysis
Five to ten arc flash explosions occur in electrical equipment every day in the
United States. Facilities have a legal responsibility to provide a safe workplace
for their employees and contractors, and to provide them with a place of
employment which is free from all recognized hazards that could possibly
cause death or serious physical injury to them.
Arc Flash Analysis performed by Square D Engineering Services identifies
approach boundaries and appropriate levels of Personal Protective
Equipment (PPE) for employees. Each analysis is presented in a clear,
®
tabular format in accordance with NFPA 70E : Electrical Safety in the Work
TM
®
Place and IEEE Standard 1584.
• Written report of findings and recommendations
including methods to reduce Arc Flash incident
energy levels and enhance worker safety
• PPE category recommendations for all
electrical equipment within the scope of the analysis
• Arc Flash incident energy equipment labels
listing PPE category recommendations for
attachment to existing enclosures.
• NFPA70E onsite electrical safety training
for company personnel
Benefits
Harmonics Assessment
• Assesses harmonic distortion with
respect to IEEE 519
Adjustable speed drives, UPS systems and other switched mode power supply
devices can cause distortion of voltage and current waveforms resulting in equipment
misoperation or failure. To combat this, many facilities use shunt power factor
correction capacitors to avoid excessive power factor penalties. Unfortunately, correction capacitors combined with harmonic producing devices can produce resonant conditions where high levels of current and voltage appear in the system causing damage and extra costs. A harmonics assessment can pinpoint damaging
distortions, identify excessive harmonic loading and poor power factor, optimize
existing electrical distribution equipment and find cost saving opportunities.
Power Quality Analysis
Intermittent power quality disruptions can be costly. A Power Quality Analysis
from Square D Engineering Services will identify disturbances originating
inside your facility or from the electric utility system. Our professional engineers
will recommend cost effective measures to reduce the number and severity of
these disturbances. Poor power quality can impact manufacturing processes
and system components, especially sensitive electronic equipment.
• Identifies excessive harmonic loading
and poor power factor
• Evaluates harmonic mitigating
savings opportunities
• Optimizes the existing electrical
distribution system
• Ensures proper operation of sensitive equipment
• Evaluates economics of power factor
correction and harmonic filters
Benefits
• Solves process disruptions due
to power disturbances
• Reduces economic effects of poor power quality
• Decreases maintenance costs
• Identifies disturbances originating
with the electric utility
• Identifies wiring and grounding improvements
Design Offers
Power System Design
• Turn key projects
Designing power systems can be complicated and considerations must be taken in
virtually every area including safety, reliability, simplicity, maintenance, flexibility,
costs, voltages, protection, fault calculations, grounding, power factor control and
effects, switching and voltage transformation, instruments and meters, cable
construction and turn key installation. Square D Engineering Services has the
engineering, design and project management expertise required to complete
the most challenging projects in a safe and cost effective manner.
• Equipment modification
• Back up power
• Grounding system modification
• Equipment specification
• Approval packages
• Bid packages
®
What Can Square D Engineering Services Do ForYou?
Power System Assessment
An on-site power system assessment evaluates the overall condition of your
electrical system, providing documentation of system configuration, condition and maintenance. It also ver ifies proper operation of new or
modified loads. Consider an onsite power assessment if:
- You have a neglected, under-utilized or damaged electric power system
- You have recently made changes to your electrical distribution system
- There is a lack of single-lines, as-builts, maintenance records or
other vital documentation
- You are concerned about power system reliability
Short Circuit & Coordination Study
Square D Power Systems Engineers perform computer-based short-circuit
analyses on all types of industrial and commercial equipment. These studies
ensure the safe and reliable operation of your electr ical system. Our
professional engineers calculate fault levels throughout your system and
address the ability of the protective devices to respond under short-circuit or
overload conditions. Where underrated or misapplied equipment is identified,
®
we make recommendations to help you adhere to the requirements of NFPA ,
®
NEC and other electrical industry standards.
Benefits
• Evaluates overall condition of
the electrical system
• Prioritizes system improvement needs
• Improves electrical system availability
and reliability
• Provides essential power system
documentation
Benefits
• Develops a computer model of the
electrical system
• Reduces possibility of down time due
to short-circuits and overloads
• Identifies underrated or misapplied
electrical equipment
• Extends electrical equipment life
• Promotes workplace safety
Benefits
Circuit Loading Study
• Evaluates loading concerns on the
electrical distribution system
A circuit loading study identifies actual electrical usage and utilizes onsite system measurements to determine available reserve capacity. These
studies also identify power factor correction needs, substation capacity
status and loading on a facility’s electrical circuits.
• Focuses on key power system parameters
that can indicate chronic or potential
power system problems
• Identifies excessive harmonic loading, poor
power factor, heavily-loaded circuits, unbalanced voltages and poor voltage regulation
Order Number 0180BR0402
© 2006 Schneider Electric . All Rights Reserved
1415 S. Roselle Road
Palatine, IL 60067
Tel: 847-397-2600
Fax: 847-925-7500
1-888-778-2733
www.us.SquareD.com
http://www.squared-services.com/engineeringservices.htm
Retro- and Upgrade Services
Remote Racking Systems
For medium voltage circuit breakers
SQUARE D Services offers remote racking systems that allow
medium voltage circuit breaker racking operations to be performed
from a distance. This system removes the operator from manual
contact with the circuit breaker.
Our Remote Racking System (RRS) controls movement of medium
voltage circuit breakers via a control panel located away from the
cell. The RRS allows the automatic racking and testing of a medium
voltage circuit breaker from a remote location by using PLC and
communication links.
Designs for our remote racking system are available for most major
switchgear manufacturers.
Why choose
SQUARE D Services?
Circuit breaker racking
functions are automatically controlled and
monitored without
direct contact
Designs are available
for most major equipment manufacturers
National network of
service locations and
qualified experts,
available 24/7
Features and Benefits of the Remote Racking System
Main components include:
-
Racking actuator with the motor
Limit switches
Remote control unit
Circuit breaker guide
Control wiring disconnect
Circuit breaker quick disconnect device
All racking operations are performed from a safe distance,
25-30 feet away from circuit breaker cell via a control panel
The original interlock system is maintained
Circuit breaker is in trip-free condition during racking operation
Remote indication of circuit breaker position inside switchgear
Fully ANSI tested (more than 500 racking operations)
Types of remote racking systems
- Modification of an existing racking device
- Remote Racking Systems (RRS) controlled by an operator
- Automatically controlled RRS
Can be used with air magnetic, SF6, or vacuum replacement
medium voltage circuit breakers
Contact your Square D sales representative,
call Square D at 1-888-778-2733 or visit
www.SquareD.com.
Emergency Services Available
24 Hours/Day-7 Days/Week
Industry Leading Expertise. Customized Solutions.
© 2003 Schneider Electric
All Rights Reserved
Order Number 0180HO0305
Maintenance and Testing
Wireless Temperature Monitoring Services
Detects overheating in electrical equipment
Troubleshoot thermal problems within your electrical equipment
with the Wireless Temperature Monitoring System from Square D
Services. Our system allows for easy field installation of wireless
sensors into low and medium voltage equipment. These sensors can
be placed in locations usually not accessible with an infrared camera
during thermographic scans.
Temperature data is transmitted from the sensors to a local receiver
via radio frequency signals. The local receiver can be connected to a
computer and multiple receivers can be connected in series to create
a system. The data is then compiled by software (included) and
presented for analysis.
Features of the Wireless Temperature Monitoring System
Why Choose
Square D Services?
Single point of contact
Services available
for a broad range of
electrical equipment,
including most
major manufacturers
National network of
service locations
and factory-trained
service technicians
■ Unlimited number of
monitoring points
■ Small, wireless,
dielectric sensors
■ Unique RF identification
for each sensor
■ Local receiver reads
sensors up to 100 feet
■ Each local receiver
accepts up to 100
sensors
■ Provides alarms and
tabular/graphic reports
■ Complies with U.S. National Standards for RF Interference,
Part 15 FCC Certified
Benefits of the Wireless Temperature Monitoring System
Leading expertise
Customized solutions
1-888-SQUARED
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www.SquareD-services.com
www.schneider-electric.com
Emergency Services Available
24 Hours/Day-7 Days/Week
■ Does not alter existing switchgear certifications because
the sensors do not affect dielectric integrity, or mechanical
and electrical performance
■ Installs easily into any manufacturer’s existing switchgear
■ Monitors temperatures behind metal walls and barriers
(finger clusters, etc.)
■ Sensor battery power provides five to eight years of continuous
service and is easily replaceable during scheduled maintenance
■ Software can be programmed for two staged alarm settings
■ Communicates with PowerLogic® monitoring system (optional)
■ Data analysis performed by professional engineers (optional)
© 2004 Schneider Electric
All Rights Reserved
Order Number 0180HO0401
Retro- and Upgrade Services
H.VIR COMET® Infrared Inspection Window
Safety and productivity can depend on your point of view
The H.VIR COMET window is a patented transparent window which
enables permanent access for inspection of electrical components
in a safe and simple way without disturbing operations. Specially
developed for infrared inspections, the window is made of a glasslike material that is transparent for infrared rays, which are registered by the thermographic camera. The complete unit is permanently fitted into electrical equipment to give continuous access for
infrared inspections.
With the H.VIR COMET window installed,
infrared inspections can be performed at
any time without downtime or danger of
electric shock.
Applications
UL-recognized component for NEMA
Type 3 and NEMA Type 12 equipment
Simple, permanent installation
Allows non-intrusive infrared
inspections with no downtime
Available in 2-, 3- and 4-inch viewing
area diameters
The H.VIR COMET Infrared window can be installed in many types
of electrical equipment such as switchboards, switchgear, transformers, motor control centers, generators and junction boxes. It
allows wavelength transmission all brands of infrared cameras.
SPECIFICATIONS
IR Transmission
Thermal Conductivity
Resistance @ 20 o C
Resistance @ 150 o C
Hardness
Porosity
Coatings
Temperature Tolerances
1-888-SQUARED
www.SquareD.com
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Emergency Services Available
24 Hours/Day-7 Days/Week
Short Wave
Long Wave
0.35µm to 5.5µm
0.35 µm to 12 µm
94%
9.71 W/mK @ 36o C
7.9 X 1017 ohm
6.7 x 1011 ohm
up to 94% *
11.72 W/mK @ 13o C
7.9 X 1017 ohm
6.7 x 1011 ohm
Knopp 150
None
None
100 o C
Knopp 82
None
None
100 o C
* Long Wave = 94% at 0.35µm to 82% at 11µm
Installation and Engineering Services
Square D Services has a nationwide network of service technicians
who can safely and quickly install H.VIR COMET Infrared Windows,
based upon your preferences or engineering recommendations.
If you have questions regarding the quantity, size(s) or placement of
the H.VIR COMET infrared windows, our Power Systems Engineers
can help. After an on-site visit, they will determine the optimum configuration for your facility and provide installation drawings, if needed.
Complete project management is available for large-scale installations.
Infrared Inspection Services
Square D Services offers infrared inspection services carried out by
skilled techicians using state-of-the-art digital infrared equipment.
Ongoing maintenance inspections can be conducted free of any
operational interruptions, providing the advanced notice you need of
potential problems.
Why Choose
Square D Services?
Safely locate faulty
electrical components
before they cost
money and downtime
Engineering, installation and infrared
inspection services
also available
Complete project
management for largescale installations
National network of
service locations and
qualified experts,
available 24/7
Many times, the sources of heat associated with electrical equipment can be identified through infrared scanning. Abnormal heat
produced by electrical systems may indicate potential electrical
problems which may be caused by:
■ System overloads
■ Broken or oxidized wire strands
■ Loose connections
■ Improper grounding Unbalanced loads
■ Incorrectly adjusted equipment
■ Issues with inductive heating
■ High resistance terminations caused by thermal cycling
1-888-SQUARED
www.SquareD.com
www.SquareD-services.com
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We recommend infrared scanning in conjunction with a periodic
maintenance and testing program to improve your equipment’s
reliability. Using the H.VIR COMET infrared window may even
qualify your facility for reduced insurance premiums. Check with
your insurance carrier.
Industry Leading Expertise. Customized Solutions.
Emergency Services Available
24 Hours/Day-7 Days/Week
© 2004 Schneider Electric
All Rights Reserved
Order Number 0180HO0402
Square D Solutions For
Electrical Workplace Safety
Understanding
Arc Flash
Our services team can provide on site analysis,
assessment, NFPA 70E training and
equipment solutions where existing equipment
needs upgrading, or even replacement.
According to the National Fire
Protection Association (NFPA), an
arc flash hazard is “a dangerous
condition associated with the
release of energy caused by an
electric arc.” An arc flash is an
explosion causing severe burns,
injuries and/or death depending
on the severity.
We service Square D brand equipment
as well as virtually all other brands of
electrical equipment and maintain a ready
inventory of replacment components.
Contact your Square D sales representative,
distributor or contact our Square D services
team for assistance at 1-888-778-2733 or
visit www.SquareD.com.
Arc flash incidents typically occur
in applications above 120V and
can take place when an electrical
service is being inspected or
serviced. In fact, some incidents
occur when a worker is removing
a cover or trim from a piece of
equipment.
Arc
Flash:
Understanding The Need For
Increased Electrical Safety
Side view of an equipment rack
during an arc flash explosion
©2003 Schneider Electric
Order Number 0613BR0301R7/07
An arc flash is caused by a
reduction of the insulation or the
isolation distance between energized components. This could be
caused by a tool being inserted or
dropped into a breaker or service
area, or other element that may be
accidentally left behind that could
compromise the distance between
energized components. Often,
incidents occur when a worker
mistakenly fails to insure that
the equipment has been properly
de-energized.
Employee
Safety
Five to 10 arc
flash explosions
occur in electric
equipment every
day in the United
States, according
to statistics
compiled by
CapSchell, Inc.,
a Chicago-based
research and
consulting firm that specializes in preventing
workplace injuries and deaths.
Injuries from arc flash events range from minor
injuries to third degree burns and potential death
due to the energy released.
Other injuries include blindness, hearing loss,
nerve damage and cardiac arrest.
Potential Equipment Damage
The damage caused by an arc flash explosion
can be serious enough to render equipment
unusable, which can cause a disruption in
operation that can last anywhere from hours to
days, depending upon the equipment, its age
and how quickly service can be restored. The
explosion can also bend and distort pieces of
the equipment leaving it unsuitable for service.
Because the temperatures of the arcing
event can typically range from 5,000 degrees
Fahrenheit and up, an arc can erode or destroy
components in the service area as well,
vaporizing the copper and steel components.
What Is NFPA 70E?
As part of the National Fire Protection Association
guidelines, NFPA 70E is a recommended safety
standard that provides awareness of arc flash
hazards. NFPA 70E also provides information
on flash analysis, which can help in choosing
appropriate personal protective equipment (PPE)
to enhance worker safety. A fundamental
requirement of this standard is to de-energize
equipment.
How OSHA Is Involved
The Occupational Safety and Health Administration
(OSHA) is currently the enforcement agency
driving arc flash safety in the industry. If they
investigate an arc flash incident, OSHA insists that
companies follow NFPA 70E as a guideline for
workplace safety. OSHA can take “enforcement
action” by levying fines if safety standards are not
being followed. In addition, OSHA has begun to
enforce the NFPA 70E guidelines as a part of their
routine inspection procedures.
Implications To Facility
With increased understanding of the dangers of
arc flash incidents, industry as a whole will need
to adjust many different aspects of their electrical
maintenance procedures.
Before enforcement of these standards becomes
commonplace, companies need to be aware of
what is occuring throughout the industry on this
subject. They also need to be notified that an
enforcement agency is beginning to drive this
change should it not be adopted voluntarily by
industrial, commercial, institutional or municipal
entities who operate electrical equipment.
National Electrical Code is a registered trademark of the
National Fire Protection Association, Quincy, MA 02169
Understanding The Risks Of
Failing To Comply
What a Facility Can Do To
Comply with NFPA 70E
NFPA 70E compliance begins by instituting
a comprehensive safety program with defined
responsibilities. This can then be followed by
defining and calculating arc flash incident energy
for each equipment location in a facility.
This is typically done through an arc flash
assessment by an outside vendor, such as
Square D/Schneider Electric. The assessment
will provide a baseline to determine status of the
equipment in place and recommend remedial
actions if necessary to mitigate arc flash incidents.
The assessment and recommendations may
include:
■
Calculations for the degree of arc hazard
■
Personal protective equipment (PPE) for workers
■
Training for workers
■
Tools for safe work
■
Warning labels on equipment
■
Products, solutions or methods to limit arc flash,
when possible
Plant or safety managers will need to include arc
flash safety training for their employees and
electricians. In addition, they will need to update
and enhance their safety procedures and manuals
to comply with the NFPA 70E guidelines that
OSHA is enforcing.
The best practice is to work on equipment that
has been properly de-energized. However, if
electricians are required to work on energized or
“hot” equipment, an assessment can help them
select the appropriate level of protection, without
reducing their dexterity.
By completing a full arc flash assessment, a
company can determine what equipment labeling
and safe boundary distances are required and,
ensure the best possible mix of worker safety,
efficiency and compliance.
The risks of not doing an assessment can be
very expensive. First, without knowing the
boundary distance of an arc flash event, it is
impossible to know where to begin implementing
safety procedures. The assessment activity
provides the background necessary to make
intelligent safety decisions.
For instance, Level 4 PPE, which is very difficult
to work in, may not provide protection from the
impact of a blast and may not even be necessary
in many cases. Attempting to complete work in a
Level 4 suit
(shown in
photo at right)
is very slow
and time
consuming.
Also, depending
upon the
complexity
of the job
and manual
dexterity
required, some
work is more
difficult to
complete in this
type of suit.
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Low Voltage Power Products
Refurbishing & Upgrades
Let the experience of
SQUARE D® Services
work for you
LowVoltage Brochure2
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SQUARE D® Services
Your Source for Low Voltage Service Solution Excellence
SQUARE D® Services brings together exceptional low voltage circuit breaker, engineering
and installation expertise in complete service solutions designed to save time and money.
We offer innovative ways to minimize downtime, improve
reliability and extend the life of existing equipment.
Our solutions maximize your equipment
investment and reduce risks. We offer
years of experience in quality service
and product design. This is evident in
our engineering expertise, turnkey and
project management capabilities,
on-site and support services, and
warranty programs.
Direct Replacement
Circuit Breakers
SQUARE D Services offers a customengineered, low voltage direct replacement
circuit breaker solution to modernize and extend
the life of existing switchgear using
MASTERPACT® circuit breakers. Designed
to fit into an existing switchgear cell with minimal
modification, MASTERPACT circuit breakers
represent a state-of-the-art solution for
switchgear upgrades – at a fraction of the cost
and installation time of
new equipment. Available
for most manufacturers’
600 V ANSI switchgear,
the direct replacement
circuit breaker solution:
2
■
Enhances electrical system reliability
■
Requires minimal downtime for installation
compared to new equipment
■
Lowers maintenance
and operating expenses
■
Eliminates the need for
obsolete or unavailable
spare parts
■
Is installed, tested and commissioned by
SQUARE D Service representatives
■
Features a one-year equipment warranty
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C5 RECONDITIONING Program
The cost-effective C5 RECONDITIONING
program provides the industry’s most
comprehensive refurbishment and reconditioning
of all major brands of low voltage power circuit
breakers. Circuit breakers are renewed for a
fraction of the cost of buying new replacements.
Plus, circuit breakers can be upgraded with solid
state RMS sensing technology. The program
includes the five Cs of reconditioning:
nce
Qualified technicians recondition the circuit breaker to
extend the life of your equipment and improve reliability.
■
Checking. Following the complete disassembly of the circuit breaker, individual
components are checked for wear
■
Cleaning. Key components are
cleaned, re-plated, re-painted and
lubricated
■
Correcting. Identified problems are
corrected through refurbishment or
component replacement
■
Calibrating. Each circuit breaker is
calibrated to meet original equipment
specifications
■
Certifying. After re-assembly and testing, the
circuit breaker is certified, guaranteeing many
more years of reliable performance
Circuit Breaker Retrofill
Circuit breaker retrofill solutions are a costeffective method of upgrading and extending the
life of existing switchgear. This “cell within a cell”
retrofill solution provides a MASTERPACT cradle
and circuit breaker, along with a new racking
mechanism, and primary and secondary
connections in each switchgear cell. Existing
cells are modified to
accept the new cradle
and circuit breaker,
including a customengineered connection
between the cradle and
the switchgear line and
load side bus. The
retrofill process is overseen by factory-trained
technicians and is available for most brands of
600 V ANSI switchgear. In addition, a circuit
breaker retrofill:
■
Reduces downtime costs compared
to new switchgear installation
■
Provides a cost-effective electrical
system upgrade
■
Maintains electrical system integrity
during the upgrade
■
Eliminates the need for obsolete or unavailable
spare parts
■
Features a one-year equipment warranty
Solid State Trip Unit Retrofit
As an option under the C5 RECONDITIONING
program, a solid-state trip unit retrofit brings a
low voltage, power air circuit breaker to current
standards of overcurrent and ground fault
protection. This is accomplished by replacing the
old direct operating electromechanical trip unit
with new current sensors, a self-powered solidstate electronic trip unit, tripping actuator and all
copper connectors and mounting parts. Benefits
to choosing this retrofit include:
■
Reliability. Older type air circuit breakers –
fitted with the original series electromechanical trip units – do not always function
reliably. Tripping characteristics become nonrepeatable and coordination difficult
■
Cost savings. This is a cost-effective
alternative to upgrade to new circuit breaker
technology
■
Flexibility. Electronic protection provides more
functions, as well as a vehicle for monitoring
and communications.
3
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Page 4
The MASTERPACT® and
MICROLOGIC® Lines
MASTERPACT NT/NW universal power circuit
breakers are designed to protect electrical
systems from damage caused by overloads,
short circuits and equipment ground faults.
Providing the latest in breaker technology,
MASTERPACT circuit breakers feature high
ampere interrupting and short-time current
ratings, MODBUS® communication protocol
and field-installable devices, including sensor
plugs and accessories.
Additional benefits include:
■
Drawout breakers with four racking positions
with status indicator on cradle
■
High ampere interrupting rating (AIR)
■
High short-time current rating
■
Drawout or fixed mount, 3- or 4-pole
construction
■
Integral ground-fault protection for
equipment
■
Protective relaying functions
■
Zone-selective interlocking (ZSI), which can
reduce damage in the event of a fault
■
Field-installable accessories
■
Constructions that meet UL 489, UL 1066,
ANSI, IEC 60947-2 and CE Mark standards
MASTERPACT NW
Circuit Breaker
MASTERPACT NT
Circuit Breaker
Why Choose SQUARE D® Services?
SQUARE D Services offers the widest range
of reliable solutions to extend the life of your
electrical equipment. Our products and services
are supported by the industry’s top electrical
engineering talent and include a one-year
warranty. SQUARE D Services is backed by a
national network of service locations and
qualified experts. Emergency services are
available 24 hours a day, 7 days a week.
For “smarter breakers,” a complete line of
MICROLOGIC trip units are available for use
with MASTERPACT circuit breakers.
These trip units provide
advanced functionality,
such as a communications interface, power
metering and monitoring
capabilities, which allow
for integration and
coordination of your
electrical system.
MICROLOGIC Trip Units
Contact your Square D sales representative for additional information, call us at
1-888-778-2733 or visit www.SquareD.com.
Order Number 0180BR0201
© 2003 Schneider Electric
All Rights Reserved