Effective June 2011

Technical Data TD02607011E Supersedes November 2008

Metal-enclosed medium voltage

power factor correction system
Contents
Description Page
Medium voltage power factor correction . . . . . . . 1
Product description . . . . . . . . . . . . . . . . . . . . . . 1
Application description. . . . . . . . . . . . . . . . . . . . 2
Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Univar XV (5 kV class). . . . . . . . . . . . . . . . . . . . . . 3
Product description . . . . . . . . . . . . . . . . . . . . . . 3
Application description. . . . . . . . . . . . . . . . . . . . 3
Features, benefits, and functions. . . . . . . . . . . . 3
Technical data. . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Univar (15 kV class). . . . . . . . . . . . . . . . . . . . . . . . 7
Product description . . . . . . . . . . . . . . . . . . . . . . 7
Application description. . . . . . . . . . . . . . . . . . . . 7
Features, benefits, and functions. . . . . . . . . . . . 7
Technical data. . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Autovar MV (2.414.4 kV) . . . . . . . . . . . . . . . . . . . 9
Product description . . . . . . . . . . . . . . . . . . . . . . 9
Features, benefits, and functions. . . . . . . . . . . . 9
Technical data. . . . . . . . . . . . . . . . . . . . . . . . . . 13

Medium voltage power

factor correction
Product description
Eatons metal-enclosed medium voltage capacitor
systems and harmonic filters are designed for
indoor or outdoor applications in commercial,
industrial, and utility power systems requiring
power factor correction, motor start support,
harmonic filtering, and IEEET 519 compliance, and
can increase system capacity. Fixed motor start
capacitors are available to assist in motor starting
applications. Designs are available with a host
of options and accessories to fit the require-
ments and desired configurations of virtually
any installation. Single-stage and multi-stage,
tuned or de-tuned filter banks can be supplied.
Metal-enclosed medium voltage capacitor banks
are designed for industrial, commercial, and utility
power systems involving motors, feeder circuits,
and transmission and distribution lines where
power factor improvement is required.
Technical Data TD02607011E Metal-enclosed medium voltage
Effective June 2011 power factor correction system

Application description Advantages
Utility customers Eatons purchase of the Commonwealth Sprague capacitor systems
business, with its over 70 years of market experience, provides
Metal-enclosed power factor correction systems are fully assem- a combination that allows the end user to obtain a world-class
bled, tested, and ready for installation. Very little field assembly solution to fill their power factor needs. Quality and reliability are
is required. Installation and maintenance costs for metal-enclosed of paramount importance to not only the Eaton engineering team,
systems are low compared to pole and rack mounted capacitor but are also the backbone of all Eaton products and services. This
banks. Metal-enclosed systems and harmonic filters are less commitment to quality means the customer can have a great deal
vulnerable to wildlife and airborne contaminants that can cause of confidence with the medium voltage capacitor or harmonic filter
tracking and faults. In addition, metal-enclosed systems significantly solution from Eaton.
reduce the risks and the associated liability involving untrained
personnel. All live parts are contained in a grounded, key interlocked Benefits
enclosure, and no internal hardware is accessible. Metal-enclosed
systems are aesthetically pleasing due to their low profile, and Ease of installation
can be painted to match the surrounding architecture. These are Eaton makes installation easy. All systems are completely assem-
just some of the reasons more and more customers are using bled in the factory, with all equipment pre-wired and pre-tested
metal-enclosed capacitor and harmonic filter systems. for easy on-site installation. Only shipping splits must be connected
in the field. Splice kits connect bus systems, and control wiring
Industrial customers
is easily connected at each enclosure. Current limiting fuses,
Many industrial power users can take advantage of the benefits contactor assemblies, and the incoming switch assembly can
associated with medium voltage power factor correction and be removed from the enclosure if needed. Line terminals are
harmonic filtering. Medium voltage solutions usually support the completely accessible from the front of the system.
scale and scope of larger services. Medium voltage applications
can be found in the following types of industries: automotive, Personnel safety
pulp and paper, plastics, petrochemical, and heavy manufacturing. A positive mechanical isolating switch with visible disconnect
Individual fixed capacitors provide power factor correction directly completely grounds and isolates the unit from the line connectors.
at the cause of the problem, such as large horsepower MV motors. A screened barrier protects personnel from live parts. All medium
Medium voltage systems allow large industrials to correct power voltage doors are mechanically interlocked with the disconnect
factor at or close to the point of common coupling (PCC), where switch. Key interlocks are provided standard on all enclosure doors,
the utility electrical system meets theirs. This allows correction for and can be coordinated with upstream disconnect devices. The low
an entire facility, instead of having to correct at multiple locations. voltage control section has a separate door-in-door design, and is
The NEMAT 3R design also allows the system to be placed out- segregated from the medium voltage sections so that an operator
doors, saving valuable manufacturing floor space. The savings can work in that section safely.
can be significant in materials, installation costs, and floor space.
In short, medium voltage solutions provide a cost-effective alterna- Ease of maintenance
tive to many local low voltage power factor correction units, while
protecting the customers entire electrical distribution system. All components are front-accessible, facilitating routine inspection
or parts replacement. A viewing window is standard on all
Commercial customers compartment doors.
Many commercial customers are purchasing power from their Flexibility
utility at higher voltages today (2.415 kV), and can also take
advantage of medium voltage power factor correction systems. Systems are expandable. The customer can add stages in the future
These solutions can meet the needs of large office complexes, by connecting the phase bus in the field via splice kits. Structures
hospitals, and universities, among others. The benefits of safety can be bolted together in the field.
(key interlocking, no exposed live parts, etc.) and aesthetics
(low profile, can be painted to match the environment) both meet
the needs of these applications where there are large numbers
of untrained personnel in proximity of electrical equipment.

Safety and aesthetics are just two compelling Insulated splice kits allow for simple interconnection in the field.
reasons to use metal-enclosed PFC systems.

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Metal-enclosed medium voltage Technical Data TD02607011E
power factor correction system Effective June 2011

Univar XV (5 kV class) Application description

Large motors
Motor control centers
Branch circuits
Service entrances

Features, benefits, and functions

Standard features
Enclosure terminal box
Fourteen-gauge steel finished with durable baked-on enamel. The
wiring enclosure is gasketed to create a weatherproof, dustproof
seal. Universal mounting flanges are provided for floor installation.
The elimination of knockouts permits indoor/outdoor use. Unit
meets NEMA 1, 3R, and 12 requirements. Enclosure is painted
ANSI 61 gray.

Features
Viewing window
Top and side entry
Removable front cover

Fusing
Univar XV fixed medium voltage PFC unit Fuses are rated 50,000A symmetrical interrupting capacity. Ratings
are 165% to 250% of rated current. Fuses have visual pop-up blown
fuse indication standard.
Product description
Capacitors for medium voltage, heavy-duty applications: Discharge resistors
Univar capacitors are designed for power factor correction in appli- These reduce the residual voltage to less than 50V residual within
cations where a fixed amount of capacitance (kVAR) is required five minutes of de-energization.
Available in voltage ratings of 2400V, 4160V, and 4800V Grounding stud
Fast economical payback Standard
Individual units or multiple assemblies can be designed
Power line terminals
Indoor dustproof/outdoor waterproof enclosures
(NEMA 12, NEMA 3R) Large size for easy connection
Floor mounting Plated copper one-hole termination pad
Two- or three-phase fused options for 24004800V
Operating temperature
NEMA 3R terminal box
40F to 115F (40C to 46C)
NNote: NECT Article 460.8 (b)(1) requires capacitors to have overcurrent
protection in all ungrounded conductors (except when connected on the load
Optional features
side of a motor overload protection device). Three-phase capacitors fused CSAT testing and labels
only on two phases will not provide adequate protection if a line-to-ground
fault should occur in the unfused phase. Technical data

Table 1. Univar Three-Phase Ratings

Volts Hz kVAR
2400 60 25825
4160 60 25900
4800 60 25900

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Technical Data TD02607011E Metal-enclosed medium voltage
Effective June 2011 power factor correction system

Table 2. Two-Phase Fused
Dimension (A) Approximate
kVAR 2400V 4160V 4800V Inches (mm) Weight Lbs (kg) Figure Number
25 25243MVF 25413MVF 25483MVF 34.44 (875) 70 (32) 1
50 50243MVF 50413MVF 50483MVF 34.44 (875) 70 (32) 1
75 75243MVF 75413MVF 75483MVF 34.44 (875) 70 (32) 1
100 100243MVF 100413MVF 100483MVF 36.19 (919) 75 (34) 1
125 125243MVF 125413MVF 125483MVF 36.19 (919) 83 (38) 1
150 150243MVF 150413MVF 150483MVF 36.19 (919) 88 (40) 1
175 175243MVF 175413MVF 175483MVF 36.19 (919) 93 (42) 1
200 200243MVF 200413MVF 200483MVF 36.19 (919) 99 (45) 1
225 225243MVF 225413MVF 225483MVF 41.94 (1065) 109 (49) 1
250 250243MVF 250413MVF 250483MVF 41.94 (1065) 109 (49) 1
275 275243MVF 275413MVF 275483MVF 41.94 (1065) 121 (55) 1
300 300413MVF 300483MVF 41.94 (1065) 121 (55) 1
300 300243MVF 36.19 (919) 172 (78) 2
325 325243MVF 325413MVF 325483MVF 36.19 (919) 177 (80) 2
350 350243MVF 350413MVF 350483MVF 36.19 (919) 182 (83) 2
375 375243MVF 375413MVF 375483MVF 36.19 (919) 188 (85) 2
400 400243MVF 400413MVF 400483MVF 36.19 (919) 194 (88) 2
425 425243MVF 425413MVF 425483MVF 41.94 (1065) 206 (93) 2
450 450243MVF 450413MVF 450483MVF 41.94 (1065) 214 (97) 2
475 475243MVF 475413MVF 475483MVF 41.94 (1065) 214 (97) 2
500 500243MVF 500413MVF 500483MVF 41.94 (1065) 214 (97) 2
525 525243MVF 525413MVF 525483MVF 41.94 (1065) 226 (103) 2
550 550243MVF 550413MVF 550483MVF 41.94 (1065) 238 (108) 2
575 575413MVF 575483MVF 41.94 (1065) 238 (108) 2
575 575243MVF 36.19 (919) 259 (118) 3
600 600413MVF 600483MVF 41.94 (1065) 238 (108) 2
600 600243MVF 36.19 (919) 265 (121) 3
625 625243MVF 625413MVF 625483MVF 41.94 (1065) 279 (127) 3
650 650243MVF 650413MVF 650483MVF 41.94 (1065) 287 (131) 3
675 675243MVF 675413MVF 675483MVF 41.94 (1065) 295 (134) 3
700 700243MVF 700413MVF 700483MVF 41.94 (1065) 295 (134) 3
725 725243MVF 725413MVF 725483MVF 41.94 (1065) 295 (134) 3
750 750243MVF 750413MVF 750483MVF 41.94 (1065) 295 (134) 3
775 775243MVF 775413MVF 775483MVF 41.94 (1065) 307 (140) 3
800 800243MVF 800413MVF 800483MVF 41.94 (1065) 319 (145) 3
825 825243MVF 825413MVF 825483MVF 41.94 (1065) 331 (151) 3
850 850413MVF 850483MVF 41.94 (1065) 331 (151) 3
875 875413MVF 875483MVF 41.94 (1065) 331 (151) 3
900 900413MVF 900483MVF 41.94 (1065) 331 (151) 3

NNote: To be used on ungrounded delta systems or high resistance grounding systems only.

NNote: Add suffix C for CSA label.

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Metal-enclosed medium voltage Technical Data TD02607011E
power factor correction system Effective June 2011

Table 3. Three-Phase Fused

Dimension (A) Approximate
kVAR 2400V 4160V 4800V Inches (mm) Weight Lbs (kg) Figure Number
25 25243MVF3 25413MVF3 25483MVF3 34.44 (875) 70 (32) 1
50 50243MVF3 50413MVF3 50483MVF3 34.44 (875) 70 (32) 1
75 75243MVF3 75413MVF3 75483MVF3 34.44 (875) 70 (32) 1
100 100243MVF3 100413MVF3 100483MVF3 36.19 (919) 75 (34) 1
125 125243MVF3 125413MVF3 125483MVF3 36.19 (919) 83 (38) 1
150 150243MVF3 150413MVF3 150483MVF3 36.19 (919) 88 (40) 1
175 175243MVF3 175413MVF3 175483MVF3 36.19 (919) 93 (42) 1
200 200243MVF3 200413MVF3 200483MVF3 36.19 (919) 99 (45) 1
225 225243MVF3 225413MVF3 225483MVF3 41.94 (1065) 109 (49) 1
250 250243MVF3 250413MVF3 250483MVF3 41.94 (1065) 109 (49) 1
275 275243MVF3 275413MVF3 275483MVF3 41.94 (1065) 121 (55) 1
300 300413MVF3 300483MVF3 41.94 (1065) 121 (55) 1
300 300243MVF3 36.19 (919) 172 (78) 2
325 325243MVF3 325413MVF3 325483MVF3 36.19 (919) 177 (80) 2
350 350243MVF3 350413MVF3 350483MVF3 36.19 (919) 182 (83) 2
375 375243MVF3 375413MVF3 375483MVF3 36.19 (919) 188 (85) 2
400 400243MVF3 400413MVF3 400483MVF3 36.19 (919) 194 (88) 2
425 425243MVF3 425413MVF3 425483MVF3 41.94 (1065) 206 (93) 2
450 450243MVF3 450413MVF3 450483MVF3 41.94 (1065) 214 (97) 2
475 475243MVF3 475413MVF3 475483MVF3 41.94 (1065) 214 (97) 2
500 500243MVF3 500413MVF3 500483MVF3 41.94 (1065) 214 (97) 2
525 525243MVF3 525413MVF3 525483MVF3 41.94 (1065) 226 (103) 2
550 550243MVF3 550413MVF3 550483MVF3 41.94 (1065) 238 (108) 2
575 575413MVF3 575483MVF3 41.94 (1065) 238 (108) 2
575 575243MVF3 36.19 (919) 259 (118) 3
600 600413MVF3 600483MVF3 41.94 (1065) 238 (108) 2
600 600243MVF3 36.19 (919) 265 (121) 3
625 625243MVF3 625413MVF3 625483MVF3 41.94 (1065) 279 (127) 3
650 650243MVF3 650413MVF3 650483MVF3 41.94 (1065) 287 (131) 3
675 675243MVF3 675413MVF3 675483MVF3 41.94 (1065) 295 (134) 3
700 700243MVF3 700413MVF3 700483MVF3 41.94 (1065) 295 (134) 3
725 725243MVF3 725413MVF3 725483MVF3 41.94 (1065) 295 (134) 3
750 750243MVF3 750413MVF3 750483MVF3 41.94 (1065) 295 (134) 3
775 775243MVF3 775413MVF3 775483MVF3 41.94 (1065) 307 (140) 3
800 800243MVF3 800413MVF3 800483MVF3 41.94 (1065) 319 (145) 3
825 825243MVF3 825413MVF3 825483MVF3 41.94 (1065) 331 (151) 3
850 850413MVF3 850483MVF3 41.94 (1065) 331 (151) 3
875 875413MVF3 875483MVF3 41.94 (1065) 331 (151) 3
900 900413MVF3 900483MVF3 41.94 (1065) 331 (151) 3

NNote: Add suffix C for CSA label.

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Technical Data TD02607011E Metal-enclosed medium voltage
Effective June 2011 power factor correction system

Dimensions

Figure 1. Univar XV Outline Drawing Figure 3. Univar XV Outline Drawing

Figure 2. Univar XV Outline Drawing

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Metal-enclosed medium voltage Technical Data TD02607011E
power factor correction system Effective June 2011

Univar (15 kV class) Features, benefits, and functions

Standard features
Enclosure
Sixteen-gauge steel finished with durable baked-on enamel. The
wiring enclosure is gasketed to create a weatherproof, dustproof
seal. Universal mounting flanges are provided for floor installation.
The elimination of knockouts permits indoor/outdoor use. Unit
meets NEMA 1, 3R, and 12 requirements. Enclosure is painted
ANSI 70 gray.

Fusing
Fuses are rated 50,000A symmetrical interrupting capacity.
Ratings are 165% to 250% of rated current. Fuses have visual
pop-up blown fuse indication standard.

Discharge resistors
These reduce the residual voltage to less than 50V residual
within 5 minutes of de-energization.
Univar fixed medium voltage PFC unit
Grounding stud
Product description Standard
Capacitors for medium voltage, heavy-duty applications: Power line terminals
Univar capacitors are designed for power factor correction Large size for easy connection
in applications where a fixed amount of capacitance (kVAR)
is required Operating temperature
Available in voltage ratings of 6.6 kV, 7.2 kV, 12.47 kV and 13.8 kV 40F to 115F (40C to 46C)
Fast economical payback
Optional features
Individual units or multiple assemblies can be designed
CSA testing and labels
Indoor dustproof/outdoor waterproof enclosures
(NEMA 12, NEMA 3R) Technical data
Floor mounting
Table 4. Univar Three-Phase Ratings
Fuses supplied on all three phases
Volts Hz kVAR
NEMA 3R terminal box
6600 60 50400
Application description 7200 60 50400
Large motors 12,470 60 50500
13,800 60 50500
Motor control centers
Branch circuits
Service entrances

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Technical Data TD02607011E Metal-enclosed medium voltage
Effective June 2011 power factor correction system

Table 5. Standard Three Fuses (660013,800V)
Standard Three Fuses Dimensions in Inches (mm)
Approx. Standard
Weight Figure DWG
kVAR 6600V 7200V 12,470V 13,800V (A) (B) (C) (D) Lbs (kg) Number Number
50 50663FKED3 50723FKED3 50123FKED3 50133FKED3 4.25 (108) 45.50 (1156) 14.46 (367) 0.25 (6) 198 (90) 4 5D10243
100 100663FKED3 100723FKED3 100123FKED3 100133FKED3 4.25 (108) 45.50 (1156) 14.46 (367) 0.25 (6) 198 (90) 4 5D10243
150 150663FKED3 150723FKED3 150123FKED3 150133FKED3 4.25 (108) 45.50 (1156) 14.46 (367) 0.25 (6) 198 (90) 4 5D10243
200 200663FKED3 200723FKED3 200123FKED3 200133FKED3 5.62 (143) 45.50 (1156) 14.46 (367) 0.25 (6) 220 (100) 4 5D10243
250 250FKY66323 250FKY72323 250FKY12323 250FKY13323 5.62 (143) 48.50 (1232) 17.46 (443) 0.25 (6) 246 (112) 4 5D10243
300 300FKY66323 300FKY72323 300FKY12323 300FKY13323 5.62 (143) 53.50 (1359) 17.46 (443) 0.25 (6) 246 (112) 4 5D10243
350 350FKY66323 350FKY72323 350FKY12323 350FKY13323 5.62 (143) 53.50 (1359) 17.46 (443) 0.25 (6) 246 (112) 4 5D10243
400 400FKY66323 400FKY72323 400FKY12323 400FKY13323 5.62 (143) 57.25 (1454) 22.46 (570) 0.25 (6) 281 (128) 4 5D10243
450 450FKY12323 450FKY13323 5.62 (143) 57.25 (1454) 22.46 (570) 0.25 (6) 281 (128) 4 5D10243
500 500FKY12323 500FKY13323 5.62 (143) 57.25 (1454) 26.21 (666) 0.25 (6) 336 (153) 4 5D10243

Dimensions

Removable
Top Cover 0.250-20
Ground Screw
16.42 34.00
Barriers When
Necessary
Solderless Conn.
for A #10 Solid
to A #4 Str'd. Conn.
B

(2) 0.500 x 0.625

Slots [13 x 16]
C
D

24.12
A 25.08

Figure 4. Drawing Number 5D10243

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Metal-enclosed medium voltage Technical Data TD02607011E
power factor correction system Effective June 2011

Autovar MV (2.414.4 kV) Standard features

Enclosure
Free-standing, 11-gauge steel construction with three-point
padlockable latching handles and stainless steel hinges. The
enclosure is painted with a corrosion-resistant ANSI 61 light
gray powder-coated paint as standard. Other colors are available
as an option. NEMA 3R construction is standard; NEMA 3R
stainless steel is available as an option.
Enclosure type is ULT/CSA approved. Enclosure design is modular,
and future sections can be added on the left or the right.
See Figure 5 for typical dimensions and elevations.
See Figure 6 for a typical single-line drawing.

Medium voltage metal-enclosed PFC system

Product description
Autovar medium voltage automatic power factor capacitor systems
are designed for power factor correction in applications where
plant power factor can be constant or changing and a custom
solution is required. These systems can be a fixed amount of
capacitance with a disconnect, a number of switched capacitance
stages, or a combination of both. The Autovar medium voltage Medium voltage PFC enclosure
capacitor system can switch stages of capacitance in and out
automatically based on information collected by the power factor
controller on the door-in-door control panel.

Features, benefits, and functions

Voltages from 2400 to 14,400V
Reactive power ratings through 15 MVAR
Harmonic tuned, de-tuned, or multi-tuned filter designs available
Externally fused capacitor units standard
Blown fuse indication standard
Integral load interrupter switch with NEMA two- or four-hole Bottom plate incoming cutout provided standard
termination pad for incoming cables
Factory tested and ready for interconnection Load interrupter air disconnect switch
Integral protection and control system Integral disconnect switch, externally operated, mechanically chain
Top or bottom cable entry driven with visible blades is available as per NEC requirements.
Grounding switch Disconnect switch is mechanically interlocked with the ground
switch, and with the customers upstream device (if applicable).
60 kV BIL up to 4.8 kV For safety, the incoming section is front-accessible only, and
95 kV BIL from 7.2 kV to 14.4 kV a barrier isolates live components from the user.
Up to 12 automatic switched capacitor stages
Warning labels
Removable air filters without opening enclosure doors
Adjustable blocking timers to prevent re-closing of a capacitor
stage in less than 200 seconds
Meets the following requirements:
ANSI

IEEE
NEC
NESC
CSA (when specified)
Main incoming fuses are rated 50 kAIC to provide main bus pro-
tection, as well as backup protection for the capacitor systems
4.00-inch base channel is standard Incoming section

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Technical Data TD02607011E Metal-enclosed medium voltage
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Ground switch Individual capacitor fusing
A ground switch is provided to ground the load-side terminals Each capacitor is externally fused with current limiting fuses.
of the incoming switch (or MLO) for safety during maintenance. Fuses are equipped with blown fuse indication. Internally fused
Optional controls are available to permit closing contactors after capacitors are also available as an option. Fuses are rated for
the grounding switch has been closed to ground capacitors capacitor protection. All fuses are rated 50 kAIC.
immediately (rather than waiting 5 minutes for full discharge).
Environmental controls
Vacuum switches and contactors rated for capacitor switching Exhaust fans are provided for forced air ventilation of all
On 2.4 to 4.8 kV multi-stage capacitor systems, each stage is enclosures as standard
controlled by low maintenance Eaton SL AMPGARDT three- Thermostats are included as standard to help maintain an
pole vacuum contactors. On 6.6 to 14.4 kV multi-stage capacitor acceptable internal environment for all components
systems, each stage is controlled by low maintenance single-pole
vacuum switches. Space heaters are provided to control moisture and humidity
inside all enclosures
Each compartment has individual thermostats for fan and space
heater controls

Capacitors
Low loss, double-bushing capacitors that meet or exceed IEC 871,
IEEE Std. 18, and CSA standards are supplied. Capacitors are
available in delta, ungrounded wye, or solidly grounded wye.
The dielectric fluid is environmentally friendly and biodegradable,
and contains no PCBs. Capacitor units are equipped with internal
discharge resistors that reduce the residual voltage to less than
50 volts within 5 minutes of de-energization.

Harmonic filtering
Eatons medium voltage harmonic filter systems are designed
for industrial, utility, and commercial power systems to improve
power factor, to reduce harmonic distortion, and to increase system
capacity. The reactors are typically tuned to either the 4.2nd or the
4.7th harmonic, to filter the 5th level harmonic. Other tuning orders
15 kV switched capacitor stage enclosure are available. This is the most common harmonic produced by six-
pulse variable speed drives. These filters are designed to the unique
The type SL power contactors are self-supporting, compact, specifications of each electrical distribution system. Medium voltage
three-pole vacuum contactors, rated for capacitor switching. capacitor banks can also be configured with de-tuned anti-resonant
The SL contactor uses a solid-state control board, allowing the harmonic filters, typically set to the 4.2nd harmonic. Capacitor banks
user maximum flexibility to change control voltages and dropout tuned to the 4.2nd or 4.7th harmonic prevent parallel resonance
times in the field simply by adjusting DIP switch settings. The conditions, reduce transients, and provide harmonic filtering.
SL contactor is available in voltage ratings from 2.4 to 4.8 kV
with current ratings of 200A and 800A (the highest rated capacitor
switching contactor available), and the SL contactor has interruption
ratings of 8500A, allowing for better coordination with power fuses.

Harmonic filter capacitor stage enclosure

5 kV switched capacitor stage enclosure

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Metal-enclosed medium voltage Technical Data TD02607011E
power factor correction system Effective June 2011

Key interlock system Microprocessor-based controller

The key interlock system controls the sequential operation of All switched metal-enclosed capacitors and harmonic filter systems
the load break switch (or circuit breaker) and the ground switch come equipped with an automatic controller that switches each
to permit safe entry into the capacitor system. All capacitor capacitor stage based upon power factor. The customer simply
stage enclosures are also interlocked with the ground switch. programs in the target power factor desired. The controller analyzes
If applicable, the customers upstream disconnect device can the present power factor, the size of each stage, and turns on and
be interlocked as well. See Figure 6 for key interlock operation off stages to meet the customers programmed target. The power
on a typical single-line drawing. factor controller comes with the following alarms as standard:
over/under compensation, no current input, step fault, step warning,
Blown fuse detection system target PF not reached, total voltage harmonic distortion, total current
A visual pop-up blown fuse detection system is provided harmonic distortion, and over/under voltage.
as standard. Up to 12 steps of capacitance can be designed into any system.
Customers can exploit this feature when designing systems for
Control power transformer future plant expansion.
A fused control power transformer rated for 1.5 kVA is provided
Communication options
for protection, control, and operation of the capacitor or harmonic
filter system. Communications of power factor data via RS-485. ModbusT is avail-
able as an option. Communicated information from the controllers:
Surge protective device (SPD) Voltage
An SPD unit is always supplied for protection of all low voltage Current
controls in the system, increasing the reliability of the system.
Target power factor
Control panel Current power factor
A door-in-door NEMA 3R swing-out control panel is provided on the Active power
main incoming structure as standard. This unit includes a viewing
window so that all controls and information can be viewed without Apparent power
opening the panel. All low voltage controls and logic are accessible Reactive power
from the front of the system, and are isolated from the medium Number of steps in the circuit
voltage section.
All alarm status
Included: All counters
PFC power factor controller Time and date
Multifunction digital meter/relay
Inrush reactors
Full voltage LED lights for status, alarm, and trip indication
Series air core inrush reactors are provided as standard on all
Manual stage operation switches switched (non-harmonic filtered) capacitor systems for protection
Any special controls requested by the customer against transients from back-to-back switching. Reactors in harmonic
filtered applications provide this same protection.

Bus
Standard main bus is continuous 1/4 x 2-inch silver-plated copper
bus rated 600A and is provided throughout the lineup for easy
interconnection, field installation, and future expansion.
Ground bus is continuous 1/4 x 1-inch silver-plated copper rated
300A and is provided throughout the lineup for easy intercon-
nection, field installation, and future expansion. Ground studs
are available in all structures for customer connection.

Control panel

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Technical Data TD02607011E Metal-enclosed medium voltage
Effective June 2011 power factor correction system

Additional standard controls and features Lightning arresters
Three-phase current monitoring of capacitor bank Optional heavy-duty distribution intermediate or station class
Unbalance alarm and unit shutdown on all lightning arresters protect the capacitor system from lightning
wye-connected systems and switching transients.
Unit alarm and isolated fail-safe contacts for customer use on all 15 kV capacitor vacuum switch
systems. Controls allow sufficient time (5 minutes) to allow the
capacitors time to discharge before re-energization can occur 15 kV capacitor vacuum switch is available in vacuum contactor in oil
dielectric or vacuum contactor in solid dielectric. Vacuum switches
Temperature alarms on all harmonic filter units are certified to ANSI C37.66 standard.
Manual stage controls (H-O-A selector switches)
Harmonic manager multifunction digital meter/relay
Optional features Multifunction harmonic manager meter/relay with current and
Harmonic filter reactors voltage harmonic monitoring and various alarm/trip set points.

Iron core reactors provide the necessary reactance to tune the Enclosure options
capacitor system to a desired frequency. Standard filters can be
tuned to 4.2, 4.4, 4.6, or 4.7, with other tuning frequencies available NEMA 3R stainless steel construction for highly caustic
if needed. Iron core reactors are 100% copper windings, 115C environments.
rise with 220C insulation VPI varnish.
Alarm strobe
Strobe light can be provided for visual indication of faults and alarms.

Unbalance protection
Neutral PT or CT-based unbalance protection for wye ungrounded
capacitor configuration.

Power cable termination

Incoming power cable lugs are available when specified.

Time delayed enclosure entry interlock

Electrically controlled solenoid time delay to allow adjustable
time delay between opening of main switch and entry into
capacitor section.

Reactors for harmonic filter Heavy-duty capacitor units

Capacitor units suited to the rigors of industrial power systems for
power factor, harmonic filter, and excessive switching applications.
Heavy-duty capacitor units have 125% continuous rms overvoltage
capability, 15,000A fault handling capability, 100 kA transient current
withstand capability, 131F (55C) ambient temperature operation,
and 135% peak overvoltage capability.

Other options
Second PT for voltage sensing of all three phases
Special CSA label for assembly
Individual harmonic filter current monitoring
Overload protection

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Metal-enclosed medium voltage Technical Data TD02607011E
power factor correction system Effective June 2011

Technical data

Top Power
Cable Entry
Lifting Eyes
Shipping Split
Incoming Main Section

Main Switch
92.56 24.00
K1 (2351.0) (609.6)
Control
Panel 18.00
CAUTION CAUTION CAUTION

Customer (457.2)
DANGER DANGER DANGER

NAMEPLATE
Cable

Ground Switch
Termination
Danger Danger Danger Danger
CAUTION
K1 (Approximate
Location, See
High Voltage High Voltage High Voltage High Voltage DANGER

Keep Out Keep Out Keep Out Keep Out

Actual Unit
D1
for Exact
D2
D3
Dimensions)
D2 D3 D2 D1
90.33 Ground Bus
Door Interlocks
(2294.4) 1/4-inch x 1-inch
Base Channel
180.80 Bottom Power
(4592.3) Cable Entry
8 Tie-Down Points 45.00 49.00
per Enclosure Front Elevation 1.50
(1143.0) (1244.6)
Front and Rear (38.1)
13.50 15.00 13.50
for 1/2 Inch Hardware Rear Access Doors Optional (Typ) (342.9) (381.0) (342.9) Right Side Elevation

Each Section is
Base Channel 45.00 (1143.0) W x 49.00 (1244.6) D
18.00 21.79
40-Inches High
(457.2) (553.5)
49.00
Bottom Entry 18.00 (1244.6)
Cover Plate
(457.2)
5.09 9.07
(129.3) (230.4)

Front Access 5 Foot Clearane 1.00

(25.4)

Floor Plan

Top Entry MV Conduit Area

19.00
(482.6)
Top Entry 16.00
Control (406.4)
Conduit
4.00 x 4.00 15.00 13.00
(381.0) (330.2)

Top View 4.00 38.00

(101.6) (965.2)

Figure 5. Typical Engineered Metal-Enclosed Power Factor Correction System Dimensional Data

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Technical Data TD02607011E Metal-enclosed medium voltage
Effective June 2011 power factor correction system

Utility Line

Utility
Transformer

Main Breaker

CT
A-Phase 1

Feeder Breaker K0

Plant Loads

K-K Interlock

K-K Interlock (Optional)

C1
K-K Interlock K0 Power Factor
K1
Main Controller
CPT BLR-CM
Switch
1-Phase
Tap On
B&C
S1 S2 S3 Control
K1 Ground
Switch CT1 46 AS AM 59 Relays
S1
3
Alarm or Trip

Fuse
S1
Enclosure
Door

C1
Vacuum
Contactor

Reactor

Capacitor Capacitor Capacitor

Delta/Wye Delta/Wye Delta/Wye

Figure 6. Typical Medium Voltage Automatic Power Factor Correction Single-Line Drawing

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Metal-enclosed medium voltage Technical Data TD02607011E
power factor correction system Effective June 2011

Figure 7. Automatic Capacitor Banks Medium Voltage Main-Tie-Main

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Technical Data TD02607011E Metal-enclosed medium voltage
Effective June 2011 power factor correction system

Eaton Corporation
Electrical Sector
1111 Superior Ave.
Cleveland, OH 44114
United States
877-ETN-CARE (877-386-2273)
Eaton.com

2011 Eaton Corporation Eaton is a registered trademark

All Rights Reserved of Eaton Corporation.
Printed in USA
Publication No. TD02607011E / Z11009 All other trademarks are property
June 2011 of their respective owners.