ARTECHE LOW VOLTAGE
CAPACITOR BANKS.
smARTbat LV.
This document may be subject to changes.
Contact ARTECHE to confirm the characteristics and
availability of the products described here.
Moving together
CONTENTS
1.
Low Voltage Capacitors
2.
Advantages of Reactive Power Compensation. Why install Capacitor Banks?
3.
smARTbat LV CFB Family. Fixed Low Voltage Power Factor Correction Capacitor Banks
4.
smARTbat LV CAB Family. Automatic Low Voltage Power Factor Correction Capacitor Banks
5.
smARTbat LV FAB/FFB family. Fixed or Automatic Low Voltage Detuned Capacitor Banks
|4
for Power Factor Correction (134 Hz)
| 24
ARTECHE Low Voltage Capacitor Banks | smARTbat LV
| 10
| 14
| 18
1. LOW VOLTAGE CAPACITORS
4
ARTECHE Low Voltage Capacitor Banks | smARTbat LV
1. LOW VOLTAGE CAPACITORS
ARTECHE THREE PHASE CAPACITORS
FOR POWER FACTOR CORRECTION
ARTECHE
three-phase
power
factor
correction capacitors are installed as part
of ARTECHE range of capacitor banks type
smARTbat LV.
They are specifically designed for superior
performance combined with or without
ARTECHE filtering reactors. They are
constructed for power factor correction so
as to withstand the effects of the harmonics
in harmonic filtering applications. The
harmonics increase the internal heating of
the capacitors and can significantly reduce
their life (50% further reduction every 10°C
increase). When harmonics are present, the
losses in the capacitor increase because the
capacitor current increase as a consequence
of the over voltage.
The geometry of the capacitor affects its
ability to dissipate heat. It is known that
heating of a capacitor increases with the
height of the capacitor and further to
capacitor smaller diameters. ARTECHE
capacitors maximize diameter and reduce
height to minimize internal losses and avoid
increasing temperature, reaching a higher life
expectancy, and enduring harshest weather
conditions.
Due to this design our capacitors can
withstand operating temperatures up to 70°C
continued without reducing life expectancy.
› ARTECHE three phase
capacitors for power
factor correction.
ARTECHE Low Voltage Capacitor Banks | smARTbat LV
5
1. LOW VOLTAGE CAPACITORS
KEY FEATURES OF ARTECHE CAPACITORS:
A. Low Current Density Design
›
›
Larger area for current entry.
Low current density
B. Heat Dissipation Losses
Short path inside the winding
›
›
Low series resistance.
C. Internal Cooling
›
Very large zinc layers for
heat transportation.
Low heat dissipation.
Current
6
ARTECHE Low Voltage Capacitor Banks | smARTbat LV
1. LOW VOLTAGE CAPACITORS
PROTECTION AGAINST OVERVOLTAGES AND
SHORTCIRCUITS: SELF-HEALING DIELECTRIC
All dielectric structures used in our power
capacitors are “self-healing”:
In the event of a voltage breakdown the metal
layers around the breakdown channel are
evaporated by the temperature of the electric
arc that forms between the electrodes. They
are removed within a few microseconds and
pushed apart by the pressure generated in the
center of the breakdown spot. An insulation
area is formed which is reliably resistive and
voltage proof for all operating requirements
of the capacitor. The capacitor remains fully
functional during and after the breakdown.
200
% life expectancy
Figure 1 gives an example of the life expectancy of a capacitor designed for 80°C and
one designed for 40°C.
150
100
50
0
25
30
35
40
45
50
55
60
65 70
75
80
85
90
95 100 105
Temperature (°C)
Capacitor designed for 40°C
Capacitor designed for 80°C
(*) M.H. El-Husseine, Pascal Venet, Gérard Rojat, Charles Joubert, “Thermal Simulation
for geometric optimization of metallized polypropylene film capacitors” IEEE
Transactions on Industry Applications. Vol. 38, No. 3, May/June 2002.
› Fig. 1
PROTECTION AGAINST ACCIDENTAL CONTACT
All capacitors are checked by routine test
(voltage test between shorted terminations
and case: 2xUN + 2,000 V ( at least 3,000 V)
in accordance with IEC 60831. Capacitors are
earthed at the bottom stud.
› Fig. 2
Terminal blocks are design for IP20, protecting
against accidental finger contact with life
parts. The discharge modules are designed in
the same way.
See figure 2.
PROTECTION AGAINST OVERLOAD AND
FAILURE AT THE END OF SERVICE LIFE
In the event of overvoltage or thermal overload
or ageing at the end of the capacitor’s life, an
increasing number of self-healing breakdowns
may cause rising pressure inside the capacitor.
To prevent it from bursting, the capacitor is
fitted with a break action mechanism. This
safety mechanism is based on an attenuated
spot at one, two or three of the connecting
wires inside the capacitor. With rising pressure
the case begins to expand, mainly by opening
the folded crimp and pushing the lid upwards.
As a result, the wires are separated and the
current path is interrupted irreversibly.
See figure 3.
Capacitor before protection
has worked
Capacitor after protection
has worked
› Fig. 3
ARTECHE Low Voltage Capacitor Banks | smARTbat LV
7
1. LOW VOLTAGE CAPACITORS
STANDARDS COMPLIANCE
›
IEC 60831-1(2003): Shunt Power capacitors of self-healing type for a.c. systems
≤1,000 V
• Part 1: Performance, testing and rating,
safety requirements, guide for installation
and operation.
›
IEC 60831-2(2003): Shunt Power capacitors of self-healing type for a.c. systems
≤1,000 V
• Part 2: Ageing test, self-healing test and
destruction test.
›
›
›
›
VDE 0560-46/47
›
DIN IEC 68-2-6: Vibration stress
73/23/EWG: Low-voltage directive
UL Nº 810
93/68/EWG: Directive for amendment
73/23/EWG (CE Conformity Mark)
The use of capacitors
can reduce energy costs,
Improve power factor and
Increase power system
capacity.
PARTICULAR TECHNICAL SPECIFICATIONS
Rated voltage (V) Un
400, 480, 525
Maximum rated current (A)
1.8 xIn
Temperature category acc. to IEC 60831
-40℃/60℃
Ambient temperature
Up to 70 ℃
Tolerance capacitance
±5%
Internal connection
Delta
Filling material
Inert gas (N2)/ no PCB
Dissipation losses
<0,5 W/kVAr
Dielectric
Self healing, pure polypropylene films
Humidity
95%
Altitude
<4,000 abv.s.l.
Life expectancy
>150,000 h
Permitted overvoltages:
8 h/d
1.1x Un
30 min/d
1.15x Un
5 min
1.2x Un
1 min
1.3x Un
Discharge time
Below 50 V within no more than 60 s
Discharge resistor
Built in
Overpressure disconnection mechanism
Included
IP
IP20
8
ARTECHE Low Voltage Capacitor Banks | smARTbat LV
ARTECHE POWER QUALITY
Customized solutions.
ARTECHE Low Voltage Capacitor Banks | smARTbat LV
9
2. Advantages of Reactive Power
Compensation. Why install
Capacitor Banks?
10
ARTECHE Low Voltage Capacitor Banks | smARTbat LV
2. ADVANTAGES OF REACTIVE POWER COMPENSATION.
WHY INSTALL CAPACITOR BANKS?
CAPACITORS BANKS CAN REDUCE ENERGY
COSTS, IMPROVE POWER FACTOR AND
INCREASE POWER SYSTEM CAPACITY
Inductive loads can demand large amounts
of reactive power and reduce overall facility
power factor. For instance, the full load power
factor of individual motors can range from
0.60 to 0.93 and drops steadily as the load
is reduced.
ARTECHE capacitors Banks improve the
power factor, save energy and reduce electric
bills.
By reducing the reactive power demand,
clients can make additional capacity available
from existing transformers.
Since many motors are de rated or operate
well below full load conditions. Typical power
factors may then be much lower than stated
on the motor nameplate.
When capacitors banks are added to motors
or networks, the capacitor supplies the
reactive power needs of the motor instead
of the facility, thus improving power factor at
this point and upstream of it.
BENEFITS OF IMPROVING POWER FACTOR
›
›
›
›
›
›
›
›
›
›
›
Current
kVA
Reduced
Demand
by
Reduced by
7%
7%
Original
Final
PF
PF
0,93
1.0
0,90
1.0
10%
10%
0,88
1.0
12%
12%
0,85
1.0
15%
15%
0,80
1.0
20%
20%
0,75
1.0
25%
25%
0,70
1.0
30%
30%
Reduce I2R losses.
0,65
1.0
35%
35%
Extend equipment life.
0,60
1.0
40%
40%
Improved Power Factor.
Reduce current draw.
Reduce kVA demand.
Reduce electricity demand.
Charges.
Reduce losses in power system & transformers.
Increase KVA available from transformers.
Reduce motor current draw.
Improve facility voltage levels.
Raise Power Factor:
ARTECHE Power Factor Capacitors Banks will
raise the power factor of motors and other
inductive loads.
Fixed Capacitor Banks type CFB may be used
for individual inductive loads, or to improve
power factor for an entire facility or electrical
service.
Use Fixed Capacitors for commercial, industrial
applications.
ARTECHE Low Voltage Capacitor Banks | smARTbat LV
11
2. ADVANTAGES OF REACTIVE POWER COMPENSATION.
WHY INSTALL CAPACITOR BANKS?
Precise Control of Power Factor:
For large facilities or electrical services, consider
ARTECHE Type CAB Automatic Capacitor
Systems. Automatic Capacitor Systems are
required for multiple loads so that capacitance
can be adjusted based upon varying load
conditions and varying reactive power demand.
Achieve Maximum Reduction of Power Losses:
Capacitors Banks should be connected as
close (electrically) as possible to individual
inductive loads in order to recover the highest
percentage of branch circuit conductor power
losses. Properly applied capacitors can lower
the power system losses by reducing the
circuit current and I2R power losses.
Reduce Electric Energy Costs:
The use of Power Factor Capacitors Banks can
eliminate the utility charges for low power factor.
ADDING UP THE BENEFITS
›
›
Saving Energy and Energy Costs.
›
Capacitors Banks improve the power factor of induction loads. Additionally, they
reduce current and kVA demanded from
the power sources. The payback period will
depend on the electricity rate structure and
penalties associated with low power factor.
ARTECHE can help you determine the ROI
of a capacitor bank investment. Contact
our offices for a ROI analysis based on the
electricity rates and usage.
ROI for Capacitor Investment (RETURN ON
INVESTMENT).
How much will KVA be reduced?
If a system has an existing overload, the
capacitor may eliminate it.
If the system is not overloaded, capacitors
banks can release capacity and postpone
or avoid an investment in more expensive
transformers, switchgear and cable, otherwise
required to serve additional loads.
How much will voltage rise?
kVAr
% Voltage Increase = ______ x 100
kVAcc
Where:
Transformer kVA
kVAcc = _________________________
Transformer Impedance kVA
Excessive voltage sags can make motors
sluggish, and cause them to overheat. Low
voltage also interferes with lighting, the proper
operation of motor controls and electrical and
electronics instruments.
Capacitors will raise the plant voltage level,
and can maintain it all along the feeders, right
out to the furthest motors.
How much energy will capacitors save?
By supplying kilovars at the point where they
are needed, capacitors will relieve the system
of delivering reactive current. Since electrical
current in the lines is reduced, the circuit I2R
losses also decrease. Therefore, fewer kWh
need to be purchased from the utility. ROI will
vary depending on factors such as utility rate
structure, load conditions, old PF and new PF.
1
1
kVAL = kVA1 - kVA2 = kW x __ - __
ƒp1 ƒp2
Where:
SL (kVAL): Released apparent power
S1 (kVA1): Initial apparent power
S2 (kVA2): Final apparent power
P (kW): active power
cos φ1 (ƒp1): Initial power factor
cos φ2 (ƒp2): Final power factor
In electrical equipment, such as transformers
or cables, capacitors banks can release
capacity and thus allow a greater payload.
By furnishing the necessary magnetizing
current for induction motors and transformers,
capacitors banks reduce the current drawn
from the power supply. Less current means
less loading on transformers and feeder
circuits.
12
ARTECHE Low Voltage Capacitor Banks | smARTbat LV
ARTECHE PQ offers over
20 years’ experience in the
design and manufacture
of reactive power
compensation and harmonic
filtering systems.
ARTECHE Low Voltage Capacitor Banks | smARTbat LV
13
3. smARTbat LV CFB FAMILY
Fixed Low Voltage Power
Factor Correction Capacitor
Banks
14
ARTECHE Low Voltage Capacitor Banks | smARTbat LV
3. smARTbat LV CFB FAMILY > Fixed Low Voltage Power Factor Correction Capacitor Banks
SOLUTIONS FOR FIXED ENERGY
DEMAND
Fixed Capacitor banks are an economical and
reliable reactive power compensation system
for:
›
›
Uniform loads.
›
Large loads (asynchronous motors and
transformers). Individual compensation
helps reducing the power through the installation.
When there is a minimum reactive energy to
compensate in low loads periods.
There are facilities with fixed energy
demand and, therefore, with reactive power
requirements also constant.
Among the wide range of products
manufactured by ARTECHE Group, fixed
capacitor banks would be the ideal equipment
for power factor correction at the load or
in the connection point of the installation
provided that the absence of resonance is
ensured in the system.
The fixed capacitor banks can be manufactured
in the following variants:
1. Fixed capacitor bank.
2. Fixed capacitor bank with fuses as main
protection.
3. Fixed capacitor bank with MCCB as main
protection.
ARTECHE’s fixed capacitor banks are very
useful when we want to get an improvement
of the power factor of a load or a group of
loads that have reactive power demand which
is basically constant.
› ARTECHE CFB type
fixed capacitor banks.
ARTECHE Low Voltage Capacitor Banks | smARTbat LV
15
3. smARTbat LV CFB FAMILY > Fixed Low Voltage Power Factor Correction Capacitor Banks
ADVANTAGES OF ARTECHE’S FIXED
CAPACITOR BANKS
›
›
›
›
›
›
›
›
›
›
›
›
›
›
›
Compact design
Main circuit breaker operable from outside
ensuring user safety.
Wide range of voltage levels from 240 to
1,000 V.
Capacities from 5-1,200 kVAr.
Operation temperature from -40 to 55°C
ambient temperature.
Minimal maintenance and 100% field replaced.
Long life and low loss due to its capacitor
design to 70°C.
Capacitors with pressure switch and antiexplosion device proof acc. UL and IEC.
Visual indication of failure of the capacitors.
Individual capacitor discharge resistors
that prevent risks to the end user.
Convection cooling.
Easy installation.
Designed and assembled under standard
ISO 9001, ISO 14001.
Components 100% environment friendly.
Its operation contributes to improved environmental and reducing greenhouse effect
gases.
MAIN FEATURES
›
›
›
›
16
Enclosure for wall or floor mounting.
Molded case circuit breaker for overcurrent
protection.
Capacitors with individual discharge resistance, pressure switch and anti-explosion
device, 100% recyclable.
Convection cooling system.
ENCLOSURE
›
›
IP code: IP 21, IP 31 and IP43.
›
›
›
Completely rigid welded structure.
Zink- passivated metallic enclosure painted
with epoxy dust paint colour RAL 7035.
Base for easy wall or floor mounting.
Grids for a proper convection cooling .
PROTECTION DEVICES
Circuit Breaker:
›
›
›
›
›
›
Main circuit breaker with high current
breaking capacity.
Comply with IEC 60947-2; UL 489.
Mechanical safety lever ensuring end user
safety to energize or de-energize the
capacitor bank from the outside of the
enclosure.
Mechanical pads on the side line (included
key for tightening).
Buses isolated in the loading side.
Easy access from outside.
Fuses:
›
›
›
›
›
›
Fully comply with IEC 60269-1-2; din
43620-1-4.
Type NV/NH ; curve gL-gG.
Center and top melted indicator.
Current limiting type.
High rupture capacity (120 KA; 500 V).
Three phase fuse bases.
ARTECHE Low Voltage Capacitor Banks | smARTbat LV
3. smARTbat LV CFB FAMILY > Fixed Low Voltage Power Factor Correction Capacitor Banks
TECHNICAL FEATURES
At the top of the enclosures a printed information sheet containing details of installation
and commissioning is placed.
System
Three phase
Frequency
50 Hz / 60 Hz
Rated Voltages
240, 400, 415, 480, 525, 690 V
Range of capacity
5 to 1,200 KVAR
Enclosure
IP 21, IP31, IP 43; RAL 7035
Installation
Wall-mounted with M8 or M10 screws
Floor-mounted with M8 or M10 screws
Capacitors
Self-healing, pure polypropylene films
Tª amb 70°C
Acc/ IEC and UL standards
Discharge resistor
Built in / Below 50 V within no more than 60 s
Overpressure disconnection mechanism
Visual
Cable entry
Lateral entry
Standards
IEC 61439 / IEC61921
IEC 60831-1-2
UL Nº 810
Maintenance
Quick interchangeable kits on site
OPTIONAL TECHNICAL FEATURES
In addition to the standard specifications
ARTECHE offers the following optional
specifications so that fixed equipment suits
the needs of the installation and user:
Frequency
50 Hz / 60 Hz
Rated Voltages
Any up 1,000 V
Enclosure
IP 55; Any RAL
Main circuit breaker
Without / With any brand specified by the end user
ARTECHE Low Voltage Capacitor Banks | smARTbat LV
17
4. smARTbat LV CAB FAMILY
Automatic Low Voltage
Power Factor Correction
Capacitor Banks
18
ARTECHE Low Voltage Capacitor Banks | smARTbat LV
4. smARTbat LV CAB FAMILY Automatic Low Voltage Power Factor Correction
Capacitor Banks
PRECISE INCREMENTS OF kVARs ARE
SWITCHED ONLINE AS NEEDED
There are a number of facilities with power
variable demand and therefore with reactive
power and requirements variable.
When the number and location of the loads
that require reactive power within a facility are
numerous, the compensation power factor at
individual level will raise the cost.
ARTECHE automatic power factor correction
capacitor banks solve the above problem.
ARTECHE automatic capacitor banks are
manufactured according to the following
protection types:
›
›
›
1st: Main protection (incomer): Switch disconnector or MCCB.
2nd: Step protection: fuses or MCCB.
3rd: Over temperature protection: provided
in all models to avoid excessive heating.
ARTECHE automatic capacitor banks allow
connected as close (electrically) as possible to
individual inductive loads in order to recover
the highest percentage of branch circuit
conductor power losses
› ARTECHE CAB type
automatic capacitor
banks.
ARTECHE Low Voltage Capacitor Banks | smARTbat LV
19
4. smARTbat LV CAB FAMILY Automatic Low Voltage Power Factor Correction
Capacitor Banks
ADVANTAGES OF ARTECHE’S AUTOMATIC
CAPACITOR BANKS
›
›
›
Compact design.
›
Main protection operable from outside
ensuring user safety and door interlock.
›
›
›
›
›
›
›
›
›
›
›
›
Faster control power factor algorithm.
Switch cycles balancing, ARTECHE capacitor banks are using for the next switching
operation from steps with same or similar
size always the step with the minimum
number of switching cycles.
Wide range of voltage levels from 240 to
1,000 V.
Capacities from 5-1200 kVAr.
Operation temperature from -40 to 55°C
(ambient temperature).
Long life and low loss due to its capacitor
design to 70°C.
Capacitors with pressure switch and antiexplosion device proof acc. UL and IEC.
Visual indication of failure of the capacitors.
ARTECHE has developed
capacitor bank designs to
allow a quick maintenance
service on site.
Individual capacitor discharge resistors
that prevent risks to the end user.
Forced air cooling.
Easy installation.
Designed and assembled under standard
ISO 9001, ISO 14001.
Components 100% environment friendly.
Its operation contributes to improved environmental and reducing greenhouse effect
gases.
ARTECHE Quick Start System:
ARTECHE’s philosophy is always to be close
to the needs of its clients, and with the
experience built up along the years. All these
efforts have resulted in the ARTECHE Quick
Start System:
›
›
Design based on total removable trays.
›
Once a tray is removed the capacitor bank
can operate properly(*).
›
›
10 minutes for removing completely a tray
and change a capacitor.
Trays of different reactive power are
designed with the same total dimensions,
this allows to increase the power on the
capacitor bank without change the whole
equipment.
Quick connection terminals.
(*) Check possible resonances
20
ARTECHE Low Voltage Capacitor Banks | smARTbat LV
4. smARTbat LV CAB FAMILY Automatic Low Voltage Power Factor Correction
Capacitor Banks
MAIN FEATURES
›
›
›
›
›
›
›
Dedicated small circuit breaker (MCB) for
control circuit.
Short circuited terminals for the secondary
of current transformer.
Voltage terminals fed by transformer voltage Tª 55°C
Self-extinguish cable according to IEC
20/22/II and UL 105°C standards.
MCCB’s for protection each step or Current
limiting HRC fuses for each section.
Self-healing, pure polypropylene films; amb
Tª 70°C; Acc/ IEC and UL standards
Technical information in print and digital
format.
ENCLOSURE
›
›
›
›
›
›
›
›
IP code: IP 21, IP 31 and IP43.
Zink- passivated metallic enclosure painted
with epoxy dust paint colour RAL 7035.
Completely rigid welded structure.
Floor mounted self-supported enclosure.
Switch Disconnector:
›
›
›
›
Fully comply with IEC 60947-1 & 3.
Insulation voltage 690 V.
Class of duty AC-22B.
Short time withstand current 50 KA; 1 s.
POWER FACTOR REGULATOR
Generalities:
›
›
›
›
›
›
›
Microprocessor controlled power factor controller with 1-phase measurement system.
Operates based on a target power factor
which can be adjusted by the user.
Full-automatic c/k-value setting, self
adapting connection of different capacitor
step sizes possible.
Automatic detection and usage of the
optimum capacitor step.
Manual mode possible.
Multiple connection types possible through
adjustable phase compensation angle.
Capable for 4-quadrant operation.
Forced air cooling with grids + filter.
Internal frames and trays mad of galvanized
steel.
+P
Ind.
Eyebolts for easy handling and installation.
Lockable front doors.
›
›
›
›
›
›
›
›
Cos
I
+Q
Reactive power
(inductive imported)
Reactive power
(capcitive exported)
Adjustable thermal protection.
III
Comply with IEC 60947; UL 489.
Mechanical safety lever ensuring end user
safety to energize or de-energize the
capacitor bank from the outside of the
enclosure (for main CB).
Cos
6
= 0.90 cap
0.90
3
-Q
Circuit breaker with high current breaking
capacity.
IV
5
-P
Active power
(exported)
4
Mechanical pads on the side line (included
key for tightening).
Buses isolated in the loading side.
Easy access from outside.
Fuses:
›
1.00
II
Circuit Breaker:
›
›
›
Cos
2
PROTECTION DEVICES
›
Active power
(imported)
›
›
Fully comply with IEC 60269-1-2; din
43620-1-4.
›
Type NV/NH ; curve gL-gG.
›
Center and top melted indicator.
Current limiting type.
High rupture capacity (120 KA; 500 V).
Three phase fuse bases.
ARTECHE Low Voltage Capacitor Banks | smARTbat LV
›
›
›
Individually configurable discharging time
allows quicker switching time.
1-phase measurement system also suitable
for non sinusodial currents and voltages.
Graphical LCD for display of step status,
measurement values and system data.
Measurement display for U, I, P, Q, S, THD U,
THD I, ΔQ, F, T.
Harmonics measurement for voltage and
current up to the 31. Order, even and odd.
Counter for active and reactive work.
Flexible alarm system with up to 15 alarms
(HARMONIC OVERLOAD, OVERCURRENT…)
21
4. smARTbat LV CAB FAMILY Automatic Low Voltage Power Factor Correction
Capacitor Banks
›
›
›
›
›
›
›
›
›
›
›
›
›
›
›
›
›
Thermal overload alarm / harmonics, allows
protection to the capacitor bank before
failure capacitors, because sometimes
networks are free of distortion when the
capacitor bank is installed, but as new harmonic generating equipments are installed
the performance of the capacitor bank
could be affect.
Programmable digital input and digital
output.
Programmable alarm relay with volt free
c/o contact.
Supply voltage 115/230 V, 45-65 Hz, other
voltages on request.
Voltage measuring 50 – 530 V, 45 – 65 Hz.
Current measuring 15 mA – 5 A, suitable for
CT x/1 A and x/5 A.
Optional communication interface with
ModBus protocol.
Connection with pluggable screw terminals.
Protection class IP20 (casing), IP50 (front).
UL and CE approval.
CONTACTORS
›
›
›
›
›
›
Fully comply with IEC 60947-4-4 (AC 6B);
IEC 60947-5-1.
Damping resistors to limit capacitors inrush
current.
Electrical life: 250,000 operations.
Ambient temperature -20°C/55°C
Rated current 1,65 x In.
Insulation voltage 690 V.
COOLING
›
›
Forced air cooling with grids + filter.
Thermal protection in all capacitor Banks
as standard.
TECHNICAL DOCUMENTATION
›
All enclosures will be delivered with a briefcase where a set of drawings, electrical
diagrams and Installation, operation and
maintenance manual can be found.
Operating temperature from -40°C to 70°C.
4-key membrane type operation.
Easy sequential operation.
Password protection in the advanced menu.
Supply voltage and measurement voltage
are independent.
Information on the number of switches per
step and identifying defective.
Real time showing of parameters and steps
in operation.
Setup Options:
›
›
›
›
›
›
›
Capacitor discharge time.
›
Automatic selection of the steps to get the
factor target power with a minimum of operations.
›
›
Display contrast.
Line voltage limits.
Time on / reconnection of steps.
Fixed or automatic step (fixed on / fixed off).
Choice of two types of power factor.
Changing the polarity of the connection using membrane keys.
With steps of equal size, regulator optimizes
work cycles contactors, in that way all steps
will operate the same number of times.
Multiple operating program sequences with
1:1:1 steps ..., 1:2:2 ..., 1:2:3 ..., 1:2:4 ..., 1:2:4:8 ...
can be detected completely automatically.
22
ARTECHE Low Voltage Capacitor Banks | smARTbat LV
4. smARTbat LV CAB FAMILY Automatic Low Voltage Power Factor Correction
Capacitor Banks
TECHNICAL FEATURES
System
Three phase
Frequency
50 Hz
Rated Voltages
240, 400, 415, 480, 525, 690 V
Voltage control
Supplied by a voltage control transformer
Current signal
Must be supplied by external current transformer, secondary 5A (out of scope)
Control circuit
Include fast connection terminals which short-circuit the secondary of the CT for a safe maintenance
Range of capacity
12,5 to 1200 KVAR
Enclosure
IP 21, IP31, IP 43; RAL 7035
Installation
Floor mounted self-supported enclosure
Capacitors
Self-healing, pure polypropylene films
Tª amb 70°C
Acc/ IEC and UL standards
Discharge resistor
Built in / Below 50 V within no more than 60 s
Overpressure disconnection mechanism
Visual
Power factor regulator
Full-automatic c/k-value setting
4-quadrant operation
Measurement display for U, I, P, Q, S, THD U, THD I, ΔQ, F, T
Main protection
MCCB or SWITCH DISCONNECTOR
Step protection
FUSES or MCCB
Cable entry
Top or bottom entry
Step switching
Contactor AC 6b; damping resistors; 250.000 operations
Altitude
3,500 m a.s.l
Standards
IEC 61439 / IEC61921
IEC 60831-1-2
UL Nº 810
Maintenance
ARTECHE Quick Start System (See page 20)
OPTIONAL TECHNICAL FEATURES
In addition to the standard specifications
ARTECHE offers the following optional
specifications so that automatic capacitor bank
suits the needs of the installation and user:
Frequency
60 Hz
Rated Voltages
Any up 1,000 V
Steps
Any number
Enclosure
IP 55; Any RAL
Main circuit breaker
Without / With any brand specified by the client
Contactors
Any brand specified by the client
Power factor regulator
Three phase measurement / ModBus protocol
ARTECHE Low Voltage Capacitor Banks | smARTbat LV
23
5. smARTbat LV FAB/FFB FAMILY
Fixed or Automatic Low Voltage
Detuned Capacitor Banks for
Power Factor Correction (134 Hz)
24
ARTECHE Low Voltage Capacitor Banks | smARTbat LV
5. smARTbat LV FAB/FFB FAMILY > Fixed or Automatic Low Voltage Detuned
Capacitor Banks for Power Factor Correction (134 Hz)
HIGH DUTY SOLUTIONS WITH
CAPACITOR PROTECTION REACTORS
ARTECHE’s detuned capacitor banks are the
cheapest way to protect the capacitor from
resonance with harmonics present in the
system and filtering the harmonic components
in power systems.
The main duty of these filters is to compensate
the reactive energy but they also absorb
a percentage of harmonic currents, and
therefore they reduce the harmonic voltages.
These units have L-C filters tuned to 134 Hz,
which is equivalent to a harmonic order of
hr=2.7 and a reactor factor of p=14%.
› smARTbat LV FAB/FFB
family.
ARTECHE Low Voltage Capacitor Banks | smARTbat LV
25
5. smARTbat LV FAB/FFB FAMILY > Fixed or Automatic Low Voltage Detuned
Capacitor Banks for Power Factor Correction (134 Hz)
EFFECTS OF HARMONICS IN POWER SYSTEMS
The increment of nonlinear devices on
electrical systems, causes an increase in Total
Harmonic Distortion (THD).
Volts
500
250
250
Harmonic components in voltage and current
cause distortion in the wave form, causing
them to lose their sinusoidal shape.
When the harmonic current components spread
through the electric system, they originate
undesired effects on the components of the
system. Among the most common effects are:
›
›
›
›
›
›
›
Abnormal heating of conductors and electrical equipment.
False or premature operation in protection
devices.
Incorrect readings in measurement equipments.
Amps
500
0
0
-250
-250
-500
-500
-750
03:44:1 9.660
03:44:1 9.655
03:44:1 9.670
03:44:1 9.665
Volts
-750
03:44:1 9.680
03:44:1 9.675
Amps
Improper operation of electronic equipments.
Overload and capacitor failures.
% of FND
175
Voltage harmonic distortion.
150
Resonance.
FFB FAMILY
Fixed Detuned Capacitor Banks are used
when the load does not change with time and
always requires the same amount of reactive
power to achieve a target power factor.
They consist of capacitors, choke reactors
and main protection.
125
100
75
50
25
0
Thd
H10
H20
H30
H40
H50
FAB FAMILY
Automatic Detuned Capacitor Banks are very
useful when there are nonlinear devices whose
power demand changes over time, without
changes in its spectral content (can vary the
magnitude of the harmonic components, but
not their order).
Inductive reactors have a very low fundamental
frequency, so the circuit LC has a capacitive
behavior since this is the predominant element
at the fundamental frequency.
The impedance of the LC circuit has a minimum
value at the tuning frequency, and above this
frequency the behavior is inductive.
6
5
4
z [ohms]
X [ohms]
ARTECHE detuned capacitor banks consist
on groups of three phase configurations
inductive-capacitive (LC) connected in
series. This type of arrangement provides
simultaneously correction of power factor and
harmonic filtering.
Amps
3
XL
Xc
Z
2
1
0
0
The capacitive behavior of the unit at nominal
frequency enables the power factor correction
of nonlinear devices.
26
10 0 200 300 400 500 600 700
f [Hz]
› Impedance and reactance vs. frequency of the filter
ARTECHE Low Voltage Capacitor Banks | smARTbat LV
5. smARTbat LV FAB/FFB FAMILY > Fixed or Automatic Low Voltage Detuned
Capacitor Banks for Power Factor Correction (134 Hz)
ARTECHE detuned capacitor banks for power
factor correction are manufactured according
to the following protection types:
›
›
›
1st: Main protection (incomer): Switch disconnector or MCCB.
2nd: Step protection: fuses or MCCB.
3rd: Over temperature protection: provided
in all models to avoid excessive heating.
ADVANTAGES OF ARTECHE DETUNED CAPACITOR BANKS
›
›
›
›
›
›
›
›
›
Prevent the propagation of harmonic components throughout the electrical system.
Decrease the effects of harmonics on the
system preventing its premature degradation.
Prevents premature degradation of other
electrical components and improper operation of relays and protections, caused
by distortion in the current and voltage.
›
›
›
›
›
Avoids resonance problems under low load
conditions.
›
Decrease in total distortion power because
the harmonic components are confined in
the part of the network where the capacitor bank is installed.
›
›
Removal of penalties for low power factor.
Compact design.
Faster control power factor algorithm.
Switch cycles balancing, ARTECHE capacitor banks are using for the next switching
operation from steps with same or similar
size always the step with the minimum
number of switching cycles.
›
›
›
›
›
Main protection operable from outside
ensuring user safety and door interlock.
Wide range of voltage levels from 240 to
1,000 V.
Capacities from 5-1,200 kVAr.
Operation temperature from -40 to 55°C
(ambient temperature).
Long life and low loss due to its capacitor
design to 70°C.
Capacitors with pressure switch and antiexplosion device proof acc. UL and IEC.
Visual indication of failure of the capacitors.
Individual capacitor discharge resistors
that prevent risks to the end user.
Forced air cooling.
Easy installation.
Designed and assembled under standard
ISO 9001, ISO 14001.
Components 100% environment friendly.
Its operation contributes to improved environmental and reducing greenhouse effect
gases.
ARTECHE Quick Start System:
ARTECHE’s philosophy is always be close
to the needs of its clients, and with the
experience build up along the years, ARTECHE
has focused their designs in the need of a
quick maintenance service on site, all these
efforts has result in the ARTECHE Quick Start
System:
›
›
Design based on total removable trays.
›
›
Reactors trays completely removable.
›
›
10 minutes for removing completely a tray
and change a capacitor.
Once a tray is removed the capacitor bank
can operate properly.
Trays of different reactive power with the
same total dimensions, this allows increase
the power on the capacitor bank without
change the whole equipment.
Quick connection terminals.
ARTECHE Low Voltage Capacitor Banks | smARTbat LV
27
5. smARTbat LV FAB/FFB FAMILY > Fixed or Automatic Low Voltage Detuned
Capacitor Banks for Power Factor Correction (134 Hz)
Main Features:
›
›
›
›
›
›
›
Dedicated mini circuit breaker (MCB) for
the control circuit.
Short circuited terminals for the secondary
of current transformer.
Voltage terminals fed by transformer voltage T55°C.
Self-extinguish cable according to IEC
20/22/II and UL 105°C standards.
MCCB’s for protection each step or Current
limiting HRC fuses for each section.
Self-healing, pure polypropylene films; Tª
amb 70°C;Acc/ IEC and UL standards.
Technical information in print and digital
format.
As shown in the following chart most of
the components already described in the
automatic power factor correction capacitor
banks are used in detuned models:
Component
Automatic Capacitor Bank
Detuned
ENCLOSURE
X
X
MCCB/SWITCH DISCONNECTOR
X
X
CONTROL CIRCUIT
X
X
PF REGULATOR
X
X
FUSES
X
X
CONTACTORS
X
X
CAPACITORS
X
X
REACTORS
28
X
ARTECHE Low Voltage Capacitor Banks | smARTbat LV
5. smARTbat LV FAB/FFB FAMILY > Fixed or Automatic Low Voltage Detuned
Capacitor Banks for Power Factor Correction (134 Hz)
COMPONENTS
Components exclusive of detuned capacitor
banks are emphasized below:
›
›
Ambient temperature: up to 55°C .
›
Designed to withstand the thermal current
of the 3rd, 4th, 5th and 7th harmonics over
the component the fundamental current.
Reactors:
By adding an appropriately rated series
reactor to the power capacitor, both elements
form a resonant circuit with a resonant
frequency below the lowest harmonic order in
the system (134 Hz).
These filter reactors are combined with
ARTECHE premium range of three-phase
power factor correction capacitors to be part
of the ARTECHE smARTbat LV range.
›
›
›
›
›
›
›
›
Fully comply with IEC 60076-6 ; VDE 053276-6.
Three phase iron core.
Copper or aluminium windings.
›
›
›
›
Fundamental current: more tan 6% of fundamental current permanently.
Withstand short circuit currents up to
25 times the value of the thermal current
design.
Isolation class H (180°C).
Quality factor Q: Upon specification.
Reactors impregnated under vacuum and
over-pressure in impregnation resin acc. to
temperature class H.
For applications which need to mitigate
or absorb a specific harmonic, ARTECHE
can offer tuned filters in order to reduce its
presence in the system. Generally the most
common harmonics present in the systems
are the 5th and / or 7th harmonic.
Available at any resonance frequency.
Thermal switch included, detecting an
abnormal increase of the temperature in
any of the reactors, the corresponding
sensor sends a signal that triggers the step
with heat problems while other steps keep
working.
High linearity.
Silent and moist-inmune operation.
Tolerances of the inductances: up to ±3%
of L rated.
› ARTECHE filtering
reactors.
ARTECHE Low Voltage Capacitor Banks | smARTbat LV
29
5. smARTbat LV FAB/FFB FAMILY > Fixed or Automatic Low Voltage Detuned
Capacitor Banks for Power Factor Correction (134 Hz)
Capacitors:
They are specifically designed for superior
performance combined with ARTECHE
filtering reactors. They are constructed for
power factor correction so as to withstand the
effects of the harmonics in harmonic filtering
applications. Harmonics increase the internal
heating of the capacitors and can significantly
reduce the life of the capacitor (50% further
reduction per 10°C). When harmonics are
present, the losses in the capacitor increases
as the capacitor current increased as a
consequence of the over voltage.
Technical features of capacitors for detuned
applications:
›
›
›
Protection against overvoltages and shortcircuits: Self-Healing Dielectric.
Protection against Accidental Contact.
Protection against overload and failure at
the end of service life.
Rated voltage (V) Un
480, 525
Maximum rated current (A)
1.8xIn
Temperature category acc. to IEC 60831
-40ºC/60ºC
Ambient temperature
Up to 70ºC
Tolerance capacitance
±5%
Internal connection
Delta
Filling material
Inert gas (N2)/ no PCB
Dissipation losses
<0.5 W/kVAr
Dielectric
Self healing, pure polypropylene films
Humidity
95%
Altitude
<4,000 abv.s.l.
Life expectancy
>150,000 h
Permitted overvoltages:
8 h/d
1.1x Un
30 min/d
1.15x Un
5 min
1.2x Un
1 min
1.3x Un
Discharge time
Below 50 V within no more than 60 s
Discharge resistor
Built in
Overpressure disconnection mechanism
Included
IP
IP20
30
ARTECHE Low Voltage Capacitor Banks | smARTbat LV
5. smARTbat LV FAB/FFB FAMILY > Fixed or Automatic Low Voltage Detuned
Capacitor Banks for Power Factor Correction (134 Hz)
Cooling:
›
›
Technical Documentation:
›
Forced air cooling with grids + filter.
Thermal protection in all filtering systems
as standard.
All enclosures will be delivered with a briefcase where a set of drawings, electrical
diagrams and Installation, Operation and
maintenance manual can be found.
Technical Features:
System
Three phase
Frequency
50 Hz
Rated Voltages
240, 400, 415, 480, 525, 690 V
Voltage control
Supplied by a voltage control transformer
Current signal
Supplied by a current transformer X/ 5 A (out of scope)
Control circuit
Short circuited terminals for the secondary of the CT // Fast terminals
Range of capacity
12,5 to 1,200 KVAR
Enclosure
IP 21, IP31, IP 43; RAL 7035
Installation
Floor mounted self-supported enclosure
Capacitors
Self-healing, pure polypropylene films
Tª amb 70°C
Acc/ IEC and UL standards
Discharge resistor
Provided with the capacitor / Below 50 V within no more than 60 s
Overpressure disconnection mechanism
Visual
Reactors
Iron core; Cu or Al band; class H (180˚C); f = 134 Hz
Power factor regulator
Full-automatic c/k-value setting // 4-quadrant operation // Measurement display for
U, I, P, Q, S, THD U, THD I, ΔQ, F, T
Main protection
MCCB or SWITCH DISCONNECTOR
Step protection
FUSES or MCCB
Cable entry
Top or bottom entry
Step switching
Contactor AC 6b; damping resistors; 250.000 operations
Altitude
3,500 m a.s.l
Standards
IEC 61439 / IEC61921 // IEC 60831-1-2 // UL Nº 810
Maintenance
ARTECHE Quick Start System (See page 27)
OPTIONAL TECHNICAL FEATURES
In addition to the standard specifications
ARTECHE offers the following optional
specifications so that automatic capacitor
bank suits the needs of the installation and
user:
Frequency
60 Hz
Rated Voltages
Any up 1,000 V
Steps
Any number
Enclosure
IP 55; Any RAL
Main circuit breaker
Without / With any brand specified by the client
Contactors
Any brand specified by the client
Power factor regulator
Three phase measurement / ModBus protocol
ARTECHE Low Voltage Capacitor Banks | smARTbat LV
31
Moving together
ARTECHE_CT_PQ_LV_EN
Version: A0
www.arteche.com
©ARTECHE