Eaton 150VCP-W500, 50VCP-W250, 150VCP-W750, 150VCP-W1000, 50 VCP-W 40C Installation, Operation And Maintenance Manual

I.B. 32-255-1G

Effective 12/02 Supersedes I.B. 32-255-1F dated January 2000

Cutler-Hammer

Instructions for Installation, Operation and Maintenance
of Type VCP-W Vacuum Circuit Breakers

I.B. 32-255-1G

Page iii

Effective 12/02

All possible contingencies which may arise during installation, operation or maintenance, and all details and
variations of this equipment do not purport to be covered by these instructions. If further information is
desired by purchaser regarding his particular installation, operation or maintenance of particular equipment,
contact a Cutler-Hammer representative.

IMPROPERLY INSTALLING OR MAINTAINING
THESE PRODUCTS CAN RESULT IN DEATH, SERI­OUS PERSONAL INJURY, OR PROPERTY DAMAGE.

READ AND UNDERSTAND THESE INSTRUCTIONS
BEFORE ATTEMPTING ANY UNPACKING, ASSEM­BLY, OPERATION OR MAINTENANCE OF THE CIR­CUIT BREAKERS.

INSTALLATION OR MAINTENANCE SHOULD BE
ATTEMPTED ONLY BY QUALIFIED PERSONNEL.
THIS INSTRUCTION BOOK SHOULD NOT BE CON­SIDERED ALL INCLUSIVE REGARDING INSTALLA­TION OR MAINTENANCE PROCEDURES. IF FUR­THER INFORMATION IS REQUIRED, YOU SHOULD
CONTACT CUTLER-HAMMER.

THE CIRCUIT BREAKER ELEMENTS DESCRIBED IN
THIS BOOK ARE DESIGNED AND TESTED TO
OPERATE WITHIN THEIR NAMEPLATE RATINGS.
OPERATION OUTSIDE OF THESE RATINGS MAY
CAUSE THE EQUIPMENT TO FAIL, RESULTING IN
DEATH, BODILY INJURY AND PROPERTY DAM­AGE.

ALL SAFETY CODES, SAFETY STANDARDS
AND/OR REGULATIONS AS THEY MAY BE
APPLIED TO THIS TYPE OF EQUIPMENT MUST BE
STRICTLY ADHERED TO.

THESE CIRCUIT BREAKER ELEMENTS ARE
DESIGNED TO BE INSTALLED PURSUANT TO THE
AMERICAN NATIONAL STANDARDS INSTITUTE
(ANSI). SERIOUS INJURY, INCLUDING DEATH, CAN
RESULT FROM FAILURE TO FOLLOW THE PROCE­DURES OUTLINED IN THIS MANUAL. THESE CIR­CUIT BREAKER ELEMENTS ARE SOLD PURSUANT
TO A NON-STANDARD PURCHASING AGREEMENT
WHICH LIMITS THE LIABILITY OF THE MANUFAC­TURER.

!

WARNING

!

WARNING

I.B. 32-255-1G

Page iv

Effective 12/02

TABLE OF CONTENTS

PAGE

SECTION 1 INTRODUCTION

1-1 Preliminary Comments and Safety Precautions..................................................................................................1

1-1.1 Warranty and Liability Information..........................................................................................................1

1-1.2 Safety Precautions .................................................................................................................................1

1-2 General Information.............................................................................................................................................1

1-3 Type VCP-W Vacuum Circuit Breaker Element Ratings (Tables 1.1, 1.2, 1.3 and 1.4)......................................3

1-4 Outlines and Dimensions ....................................................................................................................................5

SECTION 2 SAFE PRACTICES

2-1 Recommendations ..............................................................................................................................................7

SECTION 3 RECEIVING, HANDLING AND STORAGE

3-1 General ...............................................................................................................................................................8

3-2 Receiving.............................................................................................................................................................8

3-3 Handling..............................................................................................................................................................8

3-4 Storage ...............................................................................................................................................................8

3-5 Tools and Accessories........................................................................................................................................9

3-6 Type VCP-W Vacuum Circuit Breaker Element Weights (Tables 3.1 and 3.2)...................................................9

SECTION 4 INITIAL INSPECTION AND INSTALLATION

4-1 Introduction........................................................................................................................................................16

4-2 Manual Operation Check...................................................................................................................................16

4-3 Vacuum Interrupter Integrity..............................................................................................................................16

4-4 Insulation...........................................................................................................................................................16

4-5 Contact Erosion and Wipe.................................................................................................................................16

4-6 Primary Circuit Resistance................................................................................................................................16

4-7 Nameplate.........................................................................................................................................................16

4-8 Electrical Operation Check................................................................................................................................17

4-8.1 Circuit Breaker Insertion and Removal.................................................................................................17

4-8.2 Operation Check Performance.............................................................................................................19

4-9 Circuit Breaker/Structure Interfacing.................................................................................................................20

4-9.1 Interface Interlocks/Interfacing Check..................................................................................................20

SECTION 5 DESCRIPTION AND OPERATION

5-1 Introduction........................................................................................................................................................22

5-2 Interrupter Assembly.........................................................................................................................................22

5-2.1 Vacuum Interrupter...............................................................................................................................22

5-2.2 Contact Erosion Indication ...................................................................................................................23

5-2.3 “T” Cutout Loading Spring Indicator .....................................................................................................23

5-2.4 Contact Wipe and Stroke .....................................................................................................................23

5-2.5 Phase Barriers......................................................................................................................................23

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PAGE

5-3 Stored Energy Mechanism................................................................................................................................24

5-3.1 Operation of Stored Energy Mechanism ..............................................................................................24

5-3.2 Charging...............................................................................................................................................27

5-3.3 Closing Operation.................................................................................................................................27

5-3.4 Tripping Operation................................................................................................................................27

5-3.5 Trip Free Operation..............................................................................................................................27

5-4 Control Schemes...............................................................................................................................................27

5-4.1 Timing...................................................................................................................................................29

5-4.2 Secondary Disconnects........................................................................................................................29

5-4.3 Undervoltage Trip Device.....................................................................................................................29

5-5 Interlocks and Interfacing..................................................................................................................................31

5-6 Levering Mechanism.........................................................................................................................................31

5-7 Operations Counter...........................................................................................................................................31

5-8 Ground Contact.................................................................................................................................................31

5-9 MOC and TOC Switch Operations....................................................................................................................31

SECTION 6 INSPECTION, MAINTENANCE AND TROUBLESHOOTING

6-1 Introduction........................................................................................................................................................32

6-2 Frequency of Inspection and Maintenance .......................................................................................................32

6-2.1 Qualified Personnel..............................................................................................................................32

6-2.2 General Torque Guidelines ..................................................................................................................32

6-3 Inspection and Maintenance Procedures..........................................................................................................34

6-4 Vacuum Interrupter Integrity Test......................................................................................................................35

6-5 Contact Erosion and Wipe.................................................................................................................................36

6-6 Insulation...........................................................................................................................................................36

6-7 Insulation Integrity Check..................................................................................................................................37

6-8 Primary Circuit Resistance Check.....................................................................................................................38

6-9 Mechanism Check.............................................................................................................................................38

6-9.1 CloSure

TM

Test .....................................................................................................................................38

6-10 Lubrication.........................................................................................................................................................42

6-11 Troubleshooting Chart.......................................................................................................................................43

SECTION 7 RENEWAL PARTS

7-1 General .............................................................................................................................................................46

7-1.1 Ordering Instructions............................................................................................................................46

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FIGURES

Figure Title Page

1-1 Type VCP-W and Type VCPW-SE Circuit Breaker Outlines and Dimensions in inches...........................5

1-2 Type VCPW-ND Circuit Breaker Outlines and Dimensions in inches........................................................6

3-1 Typical VCP-W Tools and Accessories...................................................................................................11

3-2 Typical Front View VCP-W Vacuum Circuit Breaker Element.................................................................12

3-3 Typical VCP-W Vacuum Circuit Breaker Element with Front Cover Removed .......................................13

3-4 Typical Rear View VCP-W Vacuum Circuit Breaker Element..................................................................14

3-5 Typical VCP-W Vacuum Circuit Breaker Element Escutcheon ...............................................................15

4-1 Type VCP-W Circuit Breaker Manual Charging Handle in Use...............................................................16

4-2 Typical VCP-W Circuit Breaker Compartment.........................................................................................18

4-3 Engaging Extension Rails in a Lower Circuit Breaker Compartment.......................................................19

4-4 Typical VCP-W Circuit Breaker Bottom View ..........................................................................................19

4-5 Pulling Secondary Disconnect Cage to Engage Secondaries in TEST Position.....................................20

4-6 Engaging Levering-In Crank....................................................................................................................20

5-1 Typical VCP-W Rear View Showing Vacuum Interrupters and Current Carrying System.......................22

5-2 Graphic Representation of Arc Interruption.............................................................................................23

5-3 Closing Cam and Trip Linkage ................................................................................................................25

5-4 Charging Schematic ................................................................................................................................26

5-5 Typical VCP-W DC and AC Control Schemes.........................................................................................28

5-6 Undervoltage Trip Device Configuration..................................................................................................30

6-1 Lubrication Points....................................................................................................................................33

6-1b 150 VCP-W 63 63kA Pole Unit................................................................................................................33

6-2 Vacuum Interrupter Showing Contact Erosion Indicator with Breaker Open...........................................36

6-3 Vacuum Interrupter Showing Contact Erosion Indicator with Breaker Closed.........................................36

6-4 Wipe Indication Procedure ......................................................................................................................37

6-5 Status Indicators......................................................................................................................................38

6-6 Starting Tape at Bottom of Cam..............................................................................................................39

6-7 Wrapping Tape Up Aroung Cam .............................................................................................................39

6-8 Attaching Tape Around to Back of Cam ..................................................................................................39

6-9 Attaching CloSure

TM

Test Tool at Hole “A” ..............................................................................................39

6-10 Attaching CloSureTMTest Tool at HP.......................................................................................................40

6-11 Manually Charging Closing Strips............................................................................................................40

6-12 Manually Closing Circuit Breaker with Marker in Hole “C”.......................................................................40

6-13 Top View of CAM and Marker Interface...................................................................................................40

6-14 Move Marker 15

o

to Right.......................................................................................................................40

6-15 Move Marker 15

o

to Left .........................................................................................................................41

6-16 Remove Marker Masking Tape from Cam...............................................................................................41

6-17 Place Tape on Right Side Panel of Breaker............................................................................................41

6-18 Illustrative Testing Tape Sample .............................................................................................................41

6-19 Front View of CloSureTMTool Showing Mounting/Testing Hole Locations..............................................41

6-20 Typical Circuit Breaker Font View with CloSureTMTool Attached............................................................42

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Effective 12/02

TABLES

Table Title Page

1.1 Type VCP-W Vacuum Circuit Breaker Through 15 kV Rated Symmetrical Current Basis........................2

1.2 Type VCP-W Vacuum Circuit Breaker 27 kV Rated Symmetrical Current Basis ......................................3

1.3 Type VCP-W Extra Capability Vacuum Circuit Breaker 5-15 kV Rated Symmetrical Current Basis ........3

1.4 Type VCP-W Generator Vacuum Circuit Breaker 5-15 kV Rated Symmetrical Current Basis .................4

1.5 Type VCP-W Generator Vacuum Circuit Breaker Through 17.5 kV Rated Symmetrical Current Basis ...4

1.6 Type VCP-W Generator Vacuum Circuit Breaker Through 17.5 kV Rated Symmetrical Current Basis....4

3.1 Type VCP-W ANSI Breaker Weights.........................................................................................................9

3.2 VCP-W IEC Rated Breaker Weights........................................................................................................10

5.1 VCP-W Circuit Breaker Barrier Configurations........................................................................................24

5.2 Circuit Breaker Timing .............................................................................................................................29

6.1 Torque Guidelines ...................................................................................................................................33

6.2 Test Voltage.............................................................................................................................................35

6.3 Typical Resistance Measurements..........................................................................................................38

6.4 Closure

TM

Tool Mounting/Testing Locations by Circuit Breaker Type......................................................42

7.1 Recommended Renewal Parts for ANSI Rated Breakers .......................................................................46

7.2 Recommended Renewal Parts for IEC Rated Breakers..........................................................................53

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Effective 12/02

I.B. 32-255-1G

Page 1

Effective 12/02

SECTION 1: INTRODUCTION

1-1 PRELIMINARY COMMENTS AND SAFETY PRE­CAUTIONS

This technical document is intended to cover most
aspects associated with the installation, operation and
maintenance of Type VCP-W, VCPW-SE, and VCPW­ND Vacuum Circuit Breakers. It is provided as a guide
for authorized and qualified personnel only. Please refer
to the specific WARNING and CAUTION in Paragraph
1-1.2 before proceeding past Section 1. If further infor­mation is required by the purchaser regarding a particu­lar installation, application or maintenance activity, a
Cutler-Hammer representative should be contacted.

1-1.1 WARRANTY AND LIABILITY INFORMATION

NO WARRANTIES, EXPRESSED OR IMPLIED,
INCLUDING WARRANTIES OF FITNESS FOR A PAR­TICULAR PURPOSE OF MERCHANTABILITY, OR
WARRANTIES ARISING FROM COURSE OF DEAL­ING OR USAGE OF TRADE, ARE MADE REGARDING
THE INFORMATION, RECOMMENDATIONS AND
DESCRIPTIONS CONTAINED HEREIN. In no event will
Cutler-Hammer be responsible to the purchaser or user
in contract, in tort (including negligence), strict liability or
otherwise for any special, indirect, incidental or conse­quential damage or loss whatsoever, including but not
limited to damage or loss of use of equipment, plant or
power system, cost of capital, loss of power, additional
expenses in the use of existing power facilities, or
claims against the purchaser or user by its customers
resulting from the use of the information and descrip­tions contained herein.

1-1.2 SAFETY PRECAUTIONS

All safety codes, safety standards and/or regulations
must be strictly observed in the installation, operation
and maintenance of this device.

THE WARNINGS AND CAUTIONS INCLUDED AS
PART OF THE PROCEDURAL STEPS IN THIS DOCU­MENT ARE FOR PERSONNEL SAFETY AND PRO­TECTION OF EQUIPMENT FROM DAMAGE. AN
EXAMPLE OF A TYPICAL WARNING LABEL HEAD­ING IS SHOWN ABOVE IN REVERSE TYPE TO
FAMILIARIZE PERSONNEL WITH THE STYLE OF
PRESENTATION. THIS WILL HELP TO INSURE

THAT PERSONNEL ARE ALERT TO WARNINGS,
WHICH MAY APPEAR THROUGHOUT THE DOCU­MENT. IN ADDITION, CAUTIONS ARE ALL UPPER
CASE AND BOLDFACE AS SHOWN BELOW.

COMPLETELY READ AND UNDERSTAND THE
MATERIAL PRESENTED IN THIS DOCUMENT
BEFORE ATTEMPTING INSTALLATION, OPERATION
OR APPLICATION OF THE EQUIPMENT. IN ADDI­TION, ONLY QUALIFIED PERSONS SHOULD BE
PERMITTED TO PERFORM ANY WORK ASSOCIAT­ED WITH THE EQUIPMENT. ANY WIRING INSTRUC­TIONS PRESENTED IN THIS DOCUMENT MUST BE
FOLLOWED PRECISELY. FAILURE TO DO SO
COULD CAUSE PERMANENT EQUIPMENT DAMAGE.

1-2 GENERAL INFORMATION

The purpose of this book is to provide instructions for
unpacking, storage, use, operation and maintenance of
Type VCP-W, VCPW-SE, and VCPW-ND Vacuum Circuit
Breakers. These circuit breakers are horizontal drawout
type removable interrupting elements designed for use
in VacClad-W Metal-Clad Switchgear and appropriate
VCP-W modules. They provide reliable control and pro­tection for medium voltage electrical equipment and cir­cuits. All VCP-W circuit breaker elements are designed
to ANSI Standards for reliable performance, ease of
handling and simplified maintenance. In addition, VCP­W circuit breakers are tested to both ANSI and IEC
Standards for application around the world.

The VCPW-SE circuit breaker element is a VCP-W cir­cuit breaker designed specifically for special environ­ment applications and operating conditions through 27
kV. The VCPW-ND circuit breaker element is a narrow
design VCP-W circuit breaker designed specifically for
use in 5 kV applications where floor space requirements
would not allow the industry standard 36 inch wide
switchgear. From this point on, all circuit breaker ele­ments will be referred to as Type VCP-W unless the ref­erence is specific to a particular design.

SATISFACTORY PERFORMANCE OF THESE CIRCUIT
BREAKER ELEMENTS IS CONTINGENT UPON PROP­ER APPLICATION, CORRECT INSTALLATION AND
ADEQUATE MAINTENANCE. THIS INSTRUCTION

!

CAUTION

!

WARNING

!

WARNING

I.B. 32-255-1G

Page 2

Effective 12/02

BOOK MUST BE CAREFULLY READ AND FOL­LOWED IN ORDER TO OBTAIN OPTIMUM PERFOR­MANCE FOR LONG USEFUL LIFE OF THE CIRCUIT
BREAKER ELEMENTS.

THE CIRCUIT BREAKER ELEMENTS DESCRIBED IN
THIS BOOK ARE DESIGNED AND TESTED TO OPER-

ATE WITHIN THEIR NAMEPLATE RATINGS. OPERA­TION OUTSIDE OF THESE RATINGS MAY CAUSE
THE EQUIPMENT TO FAIL, RESULTING IN DEATH,
BODILY INJURY AND PROPERTY DAMAGE.

ALL SAFETY CODES, SAFETY STANDARDS AND/OR
REGULATIONS AS THEY MAY BE APPLIED TO THIS
TYPE OF EQUIPMENT MUST BE STRICTLY ADHERED
TO.

!

WARNING

1-3 TYPE VCP-W VACUUM CIRCUIT BREAKER ELEMENT RATINGS (TABLES 1.1, 1.2, 1.3, 1.4, 1.5 AND 1.6)

Table 1.1 (ANSI Standards➀) Type VCP-W Vacuum Circuit Breaker Through 15 kV Rated Symmetrical Current Basis

➀

Applicable ANSI Standards C37.04-1979, C37.09-1979 and C37.06-1987.
Operating Duty Cycle CO-15 seconds-CO. Operating Time Values: Opening
30-45 ms, Closing 45-60 ms and Reclosing 18 cycles (300 rms).

➁

Non-standard circuit breakers with High Close and Latch (momentary)
rating for special applications.

➂

Consult Application Data 32-265 for further information.

➃

Optional interrupting time of 3 cycles is available.

➄

Also 3-second short time current carrying capability.

Identification Rated Values

Circuit Nominal Nominal Voltage Insulation Level Current Inter- Permis- Maximum Current Values
Breaker Voltage 3-Phase Maximum Voltage Withstand Test Continuous Short rupting sible Voltage Maximum Closing Closing
Type Class MVA Voltage Range Voltage Current Circuit Time

➃

Tripping Divided Symmetrical and and

Class Factor

➂

at 60 Hz Current Delay By K Interrupting Latching Latching

(at Rated Capability Capability Capability
Max. kV) Momentary

Power Impulse K Times 2.7 K 1.6 K
Frequency Rated Short Times Times
(1 Min.) Circuit Rated Rated

Current

➂➄

Short Short
Circuit Circuit
Current Current

E K I Y E/K

kV MVA kV rms kV rms kV Peak Amperes kA rms Cycles Seconds kV rms kA rms kA Peak kA rms

50VCPW-ND250 4.16 250 4.76 1.24 19 60 1200 29 5 2 3.85 36 97 58
50VCP-W250 4.16 250 4.76 1.24 19 60 1200 29 5 2 3.85 36 97 58

2000 132

➁

78

➁

3000

50VCP-W350 4.16 350 4.76 1.19 19 60 1200 41 5 2 4.0 49 132 78

2000
3000

75VCP-W500 7.2 500 8.25 1.25 36 95 1200 33 5 2 6.6 41 111 66

2000
3000

150VCP-W500 13.8 500 15 1.30 36 95 1200 18 5 2 11.5 23 62 37

2000 97

➁

58

➁

3000

150VCP-W750 13.8 750 15 1.30 36 95 1200 28 5 2 11.5 36 97 58

2000 130

➁

77

➁

3000

150VCP-W1000 13.8 1000 15 1.30 36 95 1200 37 5 2 11.5 48 130 77

2000
3000

150VCP-W1500

(63)

13.8 1500 15 1.00 36 95 1200 63 5 2 15.0 63 170 101
2000
3000

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Page 3

Effective 12/02

Table 1.2 (ANSI Standards➀) Type VCP-W Vacuum Circuit Breaker 27 kV Rated Symmetrical Current Basis

Identification Rated Values

Circuit Nominal Nominal Voltage Insulation Level Current Inter- Permis- Transient Recovery Voltage Current Values
Breaker Voltage 3-Phase Maximum Voltage Withstand Test Continuous Short rupting sible E

2

t

2

Closing Capacitor

Type Class MVA Voltage

➁

Range Voltage Current Circuit Time ➃Tripping Rise and Switching

Class Factor

➂

at 60 Hz Current

➄

Delay Time Latching Cable

Capability Charging

Power Impulse 3 Second 2.7 K Times
Frequency Short Time Rated
(1 Min.)

Current

Short

Carrying

Circuit

Capability Current

EK I Y

kV MVA kV rms kV rms kV Peak Amperes kA rms Cycles Seconds kV Peak µs kA Peak Amperes

270VCP-W750

(16)

27 750 27 1.0 60 125 600 16 5 2 51 105 43 31.5

1200
2000

270VCP-W1000

(22)

27 1000 27 1.0 60 125 600 22 5 2 51 105 60 31.5

1200
2000

270VCP-W1250

(25)

27 1250 27 1.0 60 125 600 25 5 2 51 105 68 31.5

1200
2000

270VCP-W1600

(32)

27 1600 27 1.0 60 125 1200 31.5 5 2 51 105 85 31.5

2000

270VCP-W2000

(40)

27 2000 27 1.0 60 125 1200 40 5 2 51 105 106 31.5

2000

➀

CESI tested to applicable ANSI Standards C37.04 - 1979, C37.09 - 1979, and
C37.06 - 199X. Consult Cutler-Hammer for CESI reports on file. Operating duty
cycle CO-15 seconds-CO. Operating time values: opening 33-55 ms, closing
50-60 ms and reclosing 18 cycles (300 ms).

➁

Testing at 28.5 kV.

➂

K=1.0, therefore E = E/K and I = KI. Consult Application Data 32-265 for further
information.

➃

Optional interrupting time of 3 cycles is available.

➄

Also maximum interrupting rating.

5.95

5.95

10.3

17.5

17.5

17.5

27

27

27

1

1

1

1

1

1

1

1

1

24

24

42

42

42

42

60

60

60

75

75

95

95

95

95

125

125

125

40

50

50

25

40

50

25

31.5

40

75

57
57
52

57
57
52

50
75
75

75

57
57
52

75

57

50

58

64
64
62

64
64
62

31
36
36

58

64
64
62

36

40

49

139

139

139

97 (2)

139

139

85

97

104

40

50

50

25

40

50

25 (8)

32 (7)

40 (7)

50

50

50

50

50

50

50

50

50

2

2

2

2

2

2

2

1

1

0.9

0.9

0.8

0.9

0.9

0.8

0.9

0.9

0.8

0.95

0.9

0.8

0.9

0.9

0.8

0.9

0.9

0.8

1.1

1.1

1.1

15
18
—
15
18
—

15
18
—

20
18
—

15
18
—
15
18
—

20

20

20

3.5

2.7
—

3.5

2.7
—

3.5

2.7
—

3.5

2.7
—

3.5

2.7
—

3.5

2.7
—

4.2

4.2

4.2

Max

Voltage

V

Voltage

Range
Factor

K

Voltage

Power

Frequency

(1 Min.)

Lightening

Impulse

1.2x50us

Withstand Test

Insulation Level

Continuous

Current at

60 Hz

Sym.
Inter-

rupting

at V (Isc)

% dc

compo-

nent

(Idc)

Asym.

Inter-

rupting

(It)

Closing

&

Latching

Capa­bility

Short-

Time

Current

for

3 sec.

Short-Circuit Current

Current

Inter-

rupting

Time

(1)

Maximum

Permis-

sible

Tripping

Delay

Transient
Recovery

Voltage
(RRRV)

(3)

Isolated

Shunt

Capacitor

Bank

Current

General
Purpose

Capacitor

Bank

Current

Back to Back Capacitor Switching

Definite Purpose

Capacitor Switching Ratings

kHzkA PeakA rmsA rmskV / µsSecondsmskA rmskA PeakkA rms%

kA rms

Total

A rmskV PeakkV rmskV rms

50 VCP-W 40C

50 VCP-W 50C

75 VCP-W 50C

150 VCP-W 25C

150 VCP-W 40C

150 VCP-W 50C

270 VCP-W 25C

270 VCP-W 32C

270 VCP-W 40C

1200
2000
3000

1200
2000
3000

1200
2000
3000

1200
2000
3000

1200
2000
3000

1200
2000
3000

1200
1600

1200
1600

1200
1600

630 (5)

1000 (5)

—

630 (5)

1000 (5)

—

630 (5)

1000 (5)

—

600 (6)

1000 (5)(6)

—

630 (5)(6)

1000 (5)(6)

—

630 (5)(6)

1000 (5)(6)

—

400

400

400

Circuit

Breaker

Type

Mechanical

Endurance

No-Load

Operations

Inrush

Current

Inrush

Frequency

10,000
10,000

5,000

10,000
10,000

5,000

10,000
10,000

5,000

10,000
10,000

5,000

10,000
10,000

5,000

10,000
10,000

5,000
2,500

2,500

2,500

(1) 3 cycles
(2) Close & Latch Current for 1200A Type 150 VCP-W 25C is proven at

15kV. For sealed interrupters at high altitudes, switching voltage is
not de-rated.

(3) For higher RRRV contact Cutler-Hammer for more information.

(4) Breaker tested to 2700A single bank switching for momentary

load (Thermal derating must consider harmonic content of
current waveform).

(5) Breaker tested to 1270A back to back switching for momentary load

(Thermal derating must consider harmonic content of

current waveform).

(6) Capacitor Switching Ratings are proven at 15kV. For sealed

interrupters at high altitudes, switching voltage is not de-rated.
(7) 1 second
(8) 2 seconds

Identifcation Rated Values

Table 1.3 (ANSI Standards) Type VCP-WC Extra Capability Vacuum Circuit Breaker 5-15 kV Rated Symmetrical
Current Basis

Close and Latch
Capability
Momentary

kA Peak

Identification Rated Values

Circuit Voltage

➁

Insulation Level Normal Current Short Circuit Transient Recovery Voltage Short Short Cable

Breaker Type Power Lightening Breaking U

c

t

3

t

d

Time Circuit Charging

Frequency Impulse Current (3 Second) Making Breaking

Withstand Current Current Current

kV rms kV rms kV Peak Amperes kA rms kA Peak µs µs kA rms kA Peak Amperes

240VCP-W16 24 60 125 630 16 41 88 13 16 40 31.5

1250
2000

240VCP-W20 24 60 125 630 20 41 88 13 20 50 31.5

1250
2000

240VCP-W25 24 60 125 630 25 41 88 13 25 63 31.5

1250
2000

I.B. 32-255-1G

Page 4

Effective 12/02

Table 1.5 (IEC-56 Standards➀) Type VCP-W Vacuum Circuit Breaker Through 17.5 kV Rated Symmetrical Current Basis

➀

Interrupting time is 3 cycles at 50/60 Hz. Rated operating sequence 0-3 min­CO-3 min-CO.

Table 1.6 (IEC-56 Standards➀) Type VCP-W Vacuum Circuit Breaker Through 24 kV Rated Symmetrical Current Basis

➀

CESI certified for rated operating sequence: O-0.3 seconds-CO-15 seconds-CO
in accordance with IEC 56. Consult Cutler-Hammer for CESI certificates on file.

➁

Tested at 28.5 kV.

Identification Rated Values

Circuit Voltage Class Insulation Level Normal Current Short Circuit 3 Second Short Short Circuit Cable Charging
Breaker Type Power Frequency Impulse Withstand Breaking Current Time Current Making Current Breaking Amps

kV rms kV Peak kV Peak Amperes kA rms kA rms kA Peak Amperes

36VCPW-ND25 3.6 10 40 630, 1250 25 25 63 25
36VCPW-ND32 3.6 10 40 630, 1250 31.5 31.5 79 25
72VCPW-ND25 7.2 20 60 630, 1250 25 25 63 25
72VCPW-ND32 7.2 20 60 630, 1250 31.5 31.5 79 25
36VCP-W25 3.6 10 40 630, 1250, 2000 25 25 63 25
36VCP-W32 3.6 10 40 1250, 2000 31.5 31.5 79 25
36VCP-W40 3.6 10 40 1250, 2000 40 40 100 25
72VCP-W25 7.2 20 60 630, 1250, 2000 25 25 63 25
72VCP-W32 7.2 20 60 1250, 2000 31.5 31.5 79 25
72VCP-W40 7.2 20 60 1250, 2000 40 40 100 25
120VCP-W25 12.0 28 75 630, 1250, 2000 25 25 63 25
120VCP-W32 12.0 28 75 1250, 2000 31.5 31.5 79 25
120VCP-W40 12.0 28 75 1250, 2000 40 40 100 25
175VCP-W25 17.5 38 95 1250, 2000 25 25 63 31.5
175VCP-W32 17.5 38 95 1250, 2000 31.5 31.5 79 31.5
175VCP-W40 17.5 38 95 1250, 2000 40 40 100 31.5

Table 1.4 (ANSI Standards) Type VCP-WG Generator Vacuum Circuit Breaker Through 5-15 kV Rated Symmetrical
Current Basis

Circuit
Breaker Type

50VCP-WG50

50VCP-WG63

150VCP-WG50

150VCP-WG63

Voltage
Maximum Voltage

Voltage Range Factor

E K

kV rms

Insulation Level
Withstand Test Voltage

Power Frequency Impulse
(1 minute)

kV rms kV Peak

Current
Continuous Short Circuit

Current Current (at Rated
at 60 Hz Maximum kV)

I

Amperes kA rms

Interrupting
Time

Cycles

Permissible
Tripping
Time

Y

Seconds

Maximum
Voltage
Divided by K

E/K

kV rms

Peak
Voltage
E2

kV

Time-to­Peak
t2

µs

4.76 1 19 60

4.76 1 19 60

15.0 1 36 95

15.0 1 36 95

1200
2000
3000

1200
2000
3000

1200
2000
3000

1200
2000
3000

50 3 2 4.76 27 8.8 137

63 3 2 4.76 28 9.0 173

50 3 2 15.0 27 3.5 137

63 3 2 15.0 28 3.5 173

Identification Rated Values

I.B. 32-255-1G

Page 5

Effective 12/02

1-4 OUTLINES AND DIMENSIONS

Figure 1-1 Type VCP-W and Type VCPW-SE Circuit Breaker Outlines and Dimensions in inches

Breaker Identification ABCDE

240 VCP-W, 270 VCP-W & 270 VCP-WC 10.00 14.00 16.25 34.80 35.22
50/350, 50/350C, 150/1000, 150/1000C, 150/63, 10.00 12.00 13.63 29.94 31.22

All 3000A VCP-W, VCPW-SE, VCP-WG & VCP-WC
Except those immediately below

All Other VCP-W & VCPW-SE including 50/25C & 10.00 12.00 13.63 29.81 29.44
150/75C, 1200A

29.13

A

A

D

B

2.25

E

C

20.88

24.63

Cutler-Hammer

Vacuum

Breaker
Operation

Circuit Breaker

Counter

VCP-W

Main
Contact
Status

Push
To
Close

CLOSING
SPRING

Manual
Charge
Socket

Status

BREAKER
LATCH

To Latch:
Push Breaker In
Until Audible Latch

To Unlatch:
Lift & Pull Handle
To Withdrawn
Position

Push
To
Open

Do Not
Lift Handle
When Inserting
Breaker

27.80

29.56

I.B. 32-255-1G

Page 6

Effective 12/02

Figure 1-2 Type VCPW-ND Circuit Breaker Outlines and Dimensions in inches

21.38

Breaker
Operation
Counter

Main
Contact
Status

7.00

Cutler-Hammer

Vacuum
Circuit Breaker

VCPW-ND

Push
To
Close

Push
To
Open

CLOSING
SPRING

Manual
Charge
Socket

Status

BREAKER
LATCH

To Latch:
Push Breaker In
Until Audible Latch

To Unlatch:
Lift & Pull Handle
To Withdrawn
Position

19.44

21.96

Do Not
Lift Handle
When Inserting
Breaker

7.00

3.69

30.38

29.44

2.25

20.88

24.63

12.00

13.63

I.B. 32-255-1G

Page 7

Effective 12/02

SECTION 2: SAFE PRACTICES

2-1 RECOMMENDATIONS

Type VCP-W Vacuum Circuit Breaker Elements are
equipped with high speed, high energy operating mech­anisms. They are designed with several built-in inter­locks and safety features to provide safe and proper
operating sequences.

TO PROTECT THE PERSONNEL ASSOCIATED WITH
INSTALLATION, OPERATION, AND MAINTENANCE
OF THESE CIRCUIT BREAKER ELEMENTS, THE
FOLLOWING PRACTICES MUST BE FOLLOWED:

• Only qualified persons, as defined in the local electri­cal code, who are familiar with the installation and
maintenance of medium voltage circuits and equip­ment, should be permitted to work on these circuit
breaker elements.

• Read these instructions carefully before attempting
any installation, operation or maintenance of these
breakers.

• Always remove the breakers from the enclosure
before performing any maintenance. Failure to do so
could result in electrical shock leading to death,
severe personal injury or property damage.

• BE EXTREMELY CAREFUL while the circuit breaker
is on the extension rails. Use provided rail clamps to
firmly hold the circuit breaker on the extension rails
while performing such activities as charging, closing
and tripping. Carelessness could cause the circuit
breaker to fall from the rails resulting in personal injury
to those in the area.

• Do not work on a closed breaker or a breaker with
closing springs charged. The closing spring should be
discharged and the main contacts open before work­ing on the breaker. Failure to do so could result in cut­ting or crushing injuries.

• Do not use a circuit breaker by itself as the sole
means of isolating a high voltage circuit. Remove the
breaker to the DISCONNECT position and follow good
lockout and tagging rules, as well as all applicable
codes, regulations and work rules.

• Do not leave the breaker in an intermediate position in
the cell. Always have the breaker either in the TEST
or CONNECTED position. Failure to do so could result
in a flash over and possible death, personal injury or
property damage.

• Always remove the maintenance tool from the breaker
after charging the closing springs.

• Breakers are equipped with safety interlocks. Do not
defeat them. This may result in death, bodily injury or
equipment damage.

!

WARNING

I.B. 32-255-G

Page 8

Effective 12/02

SECTION 3: RECEIVING, HANDLING AND
STORAGE

3-1 GENERAL

Type VCP-W Vacuum Circuit Breaker Elements are
subjected to complete factory production tests and
inspection before being packed. They are shipped in
packages designed to provide maximum protection to
the equipment during shipment and storage and at the
same time to provide convenient handling. Tools, such
as the maintenance tool, are shipped separately.

3-2 RECEIVING

If the circuit breaker element is not to be used immedi­ately but is to be placed in storage; maximum protection
can be obtained by keeping it packed as shipped.

Upon receipt of the equipment, inspect the containers
for any signs of damage or rough handling. Open the
containers carefully to avoid any damage to the con­tents. Use a nail puller rather than a crow bar when
required. When opening the containers, be careful to
save any loose items or hardware that may be other­wise discarded with the packing material. Check the
contents of each package against the packing list.

Examine the circuit breaker element for any signs of
shipping damage such as broken, missing or loose
hardware, damaged or deformed insulation and other
components. File claims immediately with the carrier if
damage or loss is detected and notify the nearest
Cutler-Hammer Office.

3-3 HANDLING

DO NOT USE ANY LIFTING DEVICE AS A PLAT­FORM FOR PERFORMING MAINTENANCE, REPAIR
OR ADJUSTMENT OF THE BREAKER OR FOR
OPENING, CLOSING THE CONTACTS OR CHARG­ING THE SPRINGS. THE CIRCUIT BREAKER ELE­MENT MAY SLIP OR FALL CAUSING SEVERE PER­SONAL INJURY. ALWAYS PERFORM MAINTE­NANCE, REPAIR AND ADJUSTMENTS ON A SOLID
WORK SURFACE CAPABLE OF SUPPORTING THE
BREAKER ELEMENT.

When a breaker element is ready for installation, a lifting
yoke in conjunction with an overhead lifter or portable
floor lifter can be used to move a breaker element.
When a breaker element is to be lifted, position the lift­ing yoke over the breaker element and insert lifters into
the breaker element side openings with the lifting hole
toward the interrupters. Once the lifting yoke is securely
seated in the holes, the breaker element can be careful­ly lifted and moved.

3-4 STORAGE

If the circuit breaker element is to be placed in storage,
maximum protection can be obtained by keeping it
packed as shipped. Before placing it in storage, checks
should be made to make sure that the breaker element
is free from shipping damage and is in satisfactory oper­ating condition.

The circuit breaker element is shipped with its contacts
open and closing springs discharged. The indicators on
the front panel should confirm this. Insert the mainte­nance tool in the manual charge socket opening (Figure
3-3). Charge the closing springs by pumping the handle
up and down approximately 38 times until a crisp metal­lic “click” is heard. This indicates that the closing springs
are charged and is shown by the closing spring
“charged” (yellow) indicator. Remove the maintenance
tool. Operate the push-to-close button. The breaker ele­ment will close as shown by the breaker contacts
“closed” (red) indicator. Operate the push-to-open but­ton. The breaker element will trip as shown by the
breaker contacts “open” (green) indicator. After complet­ing this initial check, leave the closing springs “dis­charged” and breaker contacts “open”.

Outdoor storage of the breaker element is NOT recom­mended. If unavoidable, the outdoor location must be
well drained and a temporary shelter from sun, rain,
snow, corrosive fumes, dirt, falling objects and exces­sive moisture must be provided. Containers should be
arranged to permit free circulation of air on all sides and
temporary heaters should be used to minimize conden­sation. Moisture can cause rusting of metal parts and
deterioration of high voltage insulation. A heat level of
approximately 400 watts for each 100 cubic feet of vol­ume is recommended with the heaters distributed uni­formly throughout the structure near the floor.

Indoor storage should be in a building with sufficient
heat and air circulation to prevent condensation. If the
building is not heated, the same general rule for heat as
for outdoor storage should be applied.

!

CAUTION

I.B. 32-255-1G

Page 9

Effective 12/02

3-5 TOOLS AND ACCESSORIES

Tools and accessories, both standard and optional are
available for use with the circuit breaker element (Figure

3-1).
Spin-Free Levering-In Crank: Used to crank breaker

between TEST and CONNECTED positions (Style
701B601G11).

Standard Levering-In Crank: (Style 701B601G12).
Maintenance Tool: Used to charge closing springs

manually (Style 8064A02G11).
Extension Rails: Permits breaker to be withdrawn from

its compartment (Style 7813C41G03 for VCP-W and
VCPW-SE) and (Style 7813C41G04 for VCPW-ND).

Rail Clamps: Used to secure breaker to extension rails
(Style 6511C83G11 for VCP-W and VCP-SE) and (Style
6511C83G02 for VCPW-ND).

Lifting Yoke: Used to lift breaker (Style 691C607G11
for VCP-W and VCPW-SE) and (Style 691C607G02 for
VCPW-ND).

Drawout Ramp: Used to insert or withdraw breaker
from lower compartment without portable lifter (Style
1C14163G02 for VCP-W and VCPW-SE) and (Style
1C14163G01 for VCPW-ND).

Portable Lifter: Used to lift breaker to or from extend­ed rails (Style 1C14504H01).

Docking Transport Dolly: Used to insert or withdraw
breaker from lower compartment without portable lifter
or move breaker from one location to another (Style
6510C71G11 for VCP-W and VCPW-SE) and (Style
6510C71G02 for VCPW-ND).

Electrical Levering-In Device: Used to electrically
move breaker between TEST and CONNECTED posi­tions (Style 1A30257G01).

Test Jumper: Used to operate breaker electrically
while breaker is on extension rails or transport dolly
(Style 6526C23G11 for VCP-W and VCPW-SE) and
(Style 1C15331G01 for VCPW-ND).

Test Cabinet: Used to provide power to operate break­er outside its compartment (Styles 8346A28G21 – G23
for VCP-W and VCPW-SE depending upon voltage
requirements) and (Styles 8346A28G41 – 43 for VCPW­ND depending upon voltage requirements).

Table 3.1 VCP-W ANSI Rated Breaker Weights

➀

Rating Amperes Lbs. (kg)

50VCPW-ND250 1200 345 (157)
50VCP-W250 1200 350 (159)

50VCPW-SE250 2000 410 (186)

3000 525 (238)

50VCP-W350 1200 460 (209)
50VCPW-SE350 2000 490 (222)

3000 525 (238)

75VCP-W500 1200 375 (170)
75VCPW-SE500 2000 410 (186)

3000 525 (238)

150VCP-W500 1200 350 (159)
150VCPW-SE500 2000 410 (186)

3000 525 (238)

150VCP-W750 1200 350 (159)
150VCPW-SE750 2000 410 (186)

3000 525 (238)

150VCP-W1000 1200 460 (209)
150VCPW-SE1000 2000 490 (222)

3000 525 (238)

150VCP-W1500

(63)

1200 525 (238)

150VCPW-SE1500

(63)

2000 530 (241)
3000 550 (250)

270VCP-W750

(16)

600 460 (209)
1200 480 (218)
2000 500 (227)

270VCP-W1000

(22)

600 460 (209)
1200 480 (218)
2000 500 (227)

270VCP-W1250

(25)

600 460 (209)
1200 480 (218)
2000 500 (227)

270VCP-W1600

(32)

1200 545 (245)
2000 560 (252)

270VCP-W2000

(40)

1200 545 (245)
2000 560 (252)

3-6 TYPE VCP-W VACUUM CIRCUIT BREAKER
ELEMENT WEIGHTS (TABLES 3.1 AND 3.2)

➀

Does not include shipping carton.

I.B. 32-255-G

Page 10

Effective 12/02

Normal

Rating Current Lbs. (kg)

Amperes

36VCPW-ND25 630 350 (159)

1250 350 (159)

36VCPW-ND32 630 350 (159)

1250 350 (159)

72VCPW-ND25 630 350 (159)

1250 350 (159)

72VCPW-ND32 630 350 (159)

1250 350 (159)

36VCP-W25 630 350 (159)

1250 350 (159)
2000 410 (186)

36VCP-W32 1250 350 (159)

2000 410 (186)

36VCP-W40 1250 375 (170)

2000 410 (186)

72VCP-W25 630 350 (159)

1250 350 (159)
2000 410 (186)

72VCP-W32 1250 350 (159)

2000 410 (186)

72VCP-W40 1250 375 (170)

2000 410 (186)

120VCP-W25 630 350 (159)

1250 350 (159)
2000 410 (186)

120VCP-W32 1250 350 (159)

2000 410 (186)

120VCP-W40 1250 375 (170)

2000 410 (186)

175VCP-W25 630 350 (159)

1250 350 (159)
2000 410 (186)

175VCP-W32 1250 375 (170)

2000 410 (186)

175VCP-W40 1250 375 (170)

2000 410 (186)

240VCP-W16 630 462 (210)

1250 484 (220)
2000 506 (230)

240VCP-W20 630 462 (210)

1250 484 (220)
2000 506 (230)

240VCP-W25 630 462 (210)

1250 484 (220)
2000 506 (230)

➀

Does not include shipping carton.

Table 3.2 VCP-W IEC Rated Breaker Weights

➀

I.B. 32-255-1G

Page 11

Effective 12/02

Figure 3-1 Typical VCP-W Tools and Accessories

Optional portable lifter

Optional accessories

Standard accessories

Optional dockable dolly

Optional drawout ramp

Optional ground and test
devices and dummy elements

I.B. 32-255-G

Page 12

Effective 12/02

Figure 3-2 Typical Front View VCP-W Vacuum Circuit Breaker Element

➄ Mechanism Enclosure
➅ Lifting Yoke Opening
➆ Primary Disconnect
➇ Ground Contact

➀ Front Panel
➁ Lift/Pull Handle
➂ Wheel
➃ Extension Rail Interlock

➀

➁

➃

➇

➆

➅

➄

➂

I.B. 32-255-1G

Page 13

Effective 12/02

Figure 3-3 Typical VCP-W Vacuum Circuit Breaker Element with Front Cover Removed

➅ Spring Release (Close Coil)

Assembly

➆ Shunt Trip Assembly
➇ Charging Motor
➈ Charging Pawl
➉ Ratchet Wheel

ƒ R. H. Closing Spring

≈ Opening Spring
∆ Manual Charge Socket
∆ Operation Counter

➀➁➃

➇

➈

13

➆

➅

➄

➂

➀ L.H. Closing Spring
➁ Anti-Pump Relay
➂ Auxiliary Switch
➃ Motor Cutoff Switch
➄ Closing Cam

14

11

12

➉

13

11

12

14