Eaton Cutler-Hammer VCP-WR Series 18 User manual

I.B. 8295A61H03
Effective 7/97
Cutler-Hammer
Instructions for the Use, Operation and Maintenance of The
Red Line Type VCP-WR Vacuum Circuit Breaker Elements
VCP-WR Series 29
VCP-WR Series 20
VCP-WR Series 18

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Cutler-Hammer
Power Distribution Components Division
Five Parkway Center
Pittsburgh, PA 15220
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, SERI-
OUS PERSONAL INJURY, OR PROPERTY DAMAGE.
READ AND UNDERSTAND THESE INSTRUCTIONS
BEFORE ATTEMPTING ANY UNPACKING, ASSEM-
BLY, OPERATION OR MAINTENANCE OF THE CIR-
CUIT BREAKERS.
INSTALLATION OR MAINTENANCE SHOULD BE
ATTEMPTED ONLY BY QUALIFIED PERSONNEL.
THIS INSTRUCTION BOOK SHOULD NOT BE CON-
SIDERED ALL INCLUSIVE REGARDING INSTALLA-
TION OR MAINTENANCE PROCEDURES. IF FUR-
THER 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 DAM-
AGE.
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
AMERICAN NATIONAL STANDARDS INSTITUTE
(ANSI) STANDARD C37.59. 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 PUR-
CHASING AGREEMENT WHICH LIMITS THE LIABIL-
ITY OF THE MANUFACTURER.
!
WARNING
!
WARNING

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TABLE OF CONTENTS
Page
SECTION 1 INTRODUCTION..................................................................................................................................1
1-1 Type VCP-WR (Red Line Series) Ratings.........................................................................................................1
1-2 Type VCP-WR Outlines and Dimensions..........................................................................................................2
SECTION 2 SAFE PRACTICES..............................................................................................................................9
SECTION 3 RECEIVING, HANDLING AND STORAGE.......................................................................................10
3-1 Receiving.........................................................................................................................................................10
3-2 Handling..........................................................................................................................................................10
3-3 Storage ...........................................................................................................................................................10
3-4 Type VCP-WR Breaker Weights.....................................................................................................................11
SECTION 4 INSPECTION AND OPERATION ......................................................................................................19
4-1 Initial Inspection...............................................................................................................................................19
4-2 Manual Operation Check.................................................................................................................................19
4-3 Interface Verification........................................................................................................................................19
SECTION 5 DESCRIPTION AND OPERATION....................................................................................................20
5-1 Circuit Breaker Elements.................................................................................................................................20
5-2 Interrupter Assembly.......................................................................................................................................20
5-2.1 Vacuum Interrupter.............................................................................................................................20
5-2.2 Contact Erosion Indicator...................................................................................................................22
5-2.3 “T” Cutout Loading Spring Indicator ...................................................................................................23
5-2.4 Contact Wipe and Stroke ...................................................................................................................23
5-3 Stored Energy Mechanism..............................................................................................................................23
5-3.1 Operation of Stored Energy Mechanism ............................................................................................23
5-3.2 Charging.............................................................................................................................................24
5-3.3 Closing Operation...............................................................................................................................24
5-3.4 Tripping Operation..............................................................................................................................24
5-3.5 Trip Free Operation............................................................................................................................24
5-4 Control Schemes.............................................................................................................................................24
5-4.1 Timing.................................................................................................................................................27
5-4.2 Terminal Blocks..................................................................................................................................27
5-5 Operations Counter.........................................................................................................................................27

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Page
SECTION 6 BREAKER ELEMENT INTERFACING..............................................................................................28
6-1 Introduction......................................................................................................................................................28
6-2 General Guidelines..........................................................................................................................................28
6-2.1 Electrical Clearances..........................................................................................................................28
6-2.2 Interphase Barriers.............................................................................................................................28
6-2.3 Front Cover (Faceplate) .....................................................................................................................28
6-2.4 Compartment Interface Verification....................................................................................................29
6-3 Series 18 Breaker Element Interfaces.............................................................................................................29
6-3.1 Initial Interfacing Steps.......................................................................................................................29
6-3.2 Electrical Interfaces............................................................................................................................29
6-3.3 Mechanical Interfaces ........................................................................................................................29
6-4 Series 20 Breaker Element Interfaces.............................................................................................................31
6-4.1 Initial Interfacing Steps.......................................................................................................................31
6-4.2 Electrical Interfaces............................................................................................................................32
6-4.3 Mechanical Interfaces ........................................................................................................................32
6-5 Series 29 Breaker Element Interfaces.............................................................................................................33
6-5.1 Initial Interfacing Steps.......................................................................................................................33
6-5.2 Electrical Interfaces............................................................................................................................33
6-5.3 Mechanical Interfaces ........................................................................................................................33
SECTION 7 INSPECTION AND MAINTENANCE.................................................................................................35
7-1 Introduction......................................................................................................................................................35
7-2 Frequency of Inspection..................................................................................................................................35
7-3 Inspection and Maintenance Procedures........................................................................................................36
7-4 Vacuum Interrupter Integrity Test....................................................................................................................37
7-5 Contact Erosion and Wipe...............................................................................................................................37
7-6 Insulation.........................................................................................................................................................38
7-7 Insulation Integrity Check................................................................................................................................38
7-8 Primary Circuit Resistance Check...................................................................................................................39
7-9 Mechanism Check...........................................................................................................................................39
7-10 Lubrication.......................................................................................................................................................39
7-11 Troubleshooting Chart.....................................................................................................................................41
SECTION 8 RENEWAL PARTS............................................................................................................................44
8-1 General ...........................................................................................................................................................44
8-2 Ordering Instructions.......................................................................................................................................44

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FIGURES
Figure Title Page
1-1 Type VCP-WR Series 18 Element Outlines and Dimensions (inches)......................................................2
1-2 Type VCP-WR Series 20 Element Outlines and Dimensions (inches)......................................................4
1-3 Type VCP-WR Series 29 Element Outlines and Dimensions (inches)......................................................6
3-1 Front View VCP-WR Series 18................................................................................................................12
3-2 Rear View VCP-WR Series 18 ................................................................................................................13
3-3 Front View VCP-WR Series 20................................................................................................................14
3-4 Rear View VCP-WR Series 20 ................................................................................................................15
3-5 Front View VCP-WR Series 29................................................................................................................16
3-6 Rear View VCP-WR Series 29 ................................................................................................................17
3-7 Typical VCP-WR Escutcheon..................................................................................................................18
5-1 Typical VCP-WR Front Mounted Mechanism..........................................................................................21
5-2 Type VCP-WR Series 20 Interrupter Assemblies....................................................................................22
5-3 Type VCP-WR Series 18 Interrupter Assemblies....................................................................................22
5-4 Type VCP-WR Series 29 Interrupter Assemblies....................................................................................22
5-5 Typical Cutler-Hammer Vacuum Interrupter Shown Attached to
Non-Sliding Current Transfer System......................................................................................................23
5-6 Closing Cam and Trip Linkage ................................................................................................................25
5-7 Charging Schematic ................................................................................................................................26
6-1 Typical VCP-WR Front Cover, Nameplate and Operational Indicators...................................................29
6-2 Typical VCP-WR “DC” and “AC” Control Schematics..............................................................................30
6-3 Series 18 Primary Connection.................................................................................................................31
6-4 Series 18 Showing Bottom Accessed Interlocks and MOC Operator......................................................31
6-5 Series 20 Primary Connection.................................................................................................................32
6-6 Series 20 Showing Bottom Accessed Interlocks and MOC Operator......................................................33
6-7 Series 29 Primary Connection.................................................................................................................34
6-8 Series 29 Showing Bottom Accessed Interlocks and MOC Operator......................................................34
7-1 Lubrication Points....................................................................................................................................35
7-2 Vacuum Interrupter Showing Contact Erosion Indicator with Breaker Open...........................................38
7-3 Vacuum Interrupter Showing Contact Erosion Indicator with Breaker Closed.........................................38
7-4 Typical “T” Contact Wipe Indicator ..........................................................................................................39
7-5 Wipe Indication Procedure.......................................................................................................................40
TABLES
Table Title Page
1.1 Type VCP-WR (Red Line Series) Ratings.................................................................................................1
3.1 VCP-WR Breaker Weights (pounds) .......................................................................................................11
5.1 Breaker Timing ........................................................................................................................................27
7.1 Test Voltage.............................................................................................................................................37
7.2 Typical Resistance Measurements..........................................................................................................39
8.1 Recommended VCP-WR Spare Parts.....................................................................................................45

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SECTION 1: INTRODUCTION
The purpose of this book is to provide instructions for
unpacking, storage, use, operation and maintenance of
Type VCP-WR Vacuum Circuit Breakers. VCP-WR is a
vacuum interrupting element designed for value added
construction. The VCP-WR Red Line family of circuit
breaker elements is comprised of three element types
(Series 18, Series 20 and Series 29). The nominal
widths are 18 inches for Series 18, 20 inches for Series
20 and 29 inches for Series 29. Any one of the three
available elements can be used as a retrofitting drawout
breaker when the customer provides and combines the
appropriate cell interface, truck, levering mechanism,
secondary connections, interlocks and other accessory
items with the VCP-WR element. VCP-WR elements
can also be used for fixed breaker applications with oth-
ers responsible for all required interfaces.
SATISFACTORY PERFORMANCE OF THESE
BREAKERS IS CONTINGENT UPON PROPER APPLI-
CATION, CORRECT INSTALLATION AND ADE-
QUATE MAINTENANCE. THIS INSTRUCTION BOOK
MUST BE CAREFULLY READ AND FOLLOWED IN
ORDER TO OBTAIN OPTIMUM PERFORMANCE FOR
LONG USEFUL LIFE OF THE CIRCUIT BREAKERS.
TYPE VCP-WR BREAKERS ARE PROTECTIVE
DEVICES, AS SUCH, THEY ARE MAXIMUM RATED
DEVICES. THEREFORE, THEY SHOULD NOT
UNDER ANY CIRCUMSTANCES BE APPLIED OUT-
SIDE THEIR NAMEPLATE RATINGS.
!
WARNING
Identification Rated Values Related Required Capabilities
Current Nominal Nominal Voltage Insulation Level Rated Rated Rated Current Values
Rated Rated Voltage 3-Phase Rated Rated Rated Withstand Inter- Permis- Max. Maxi- 3 Sec. Closing
Contin- Short Class MVA Max. Voltage Test Voltage rupting sible Voltage mum Short and
uous Circuit Class Voltage Range Time Tripping Divided Sym. Time Latching
Current Current Factor Delay by K Inter- Current Capability
at (at rupting Carrying (Momen-
60 Hz Rated Capability Capability tary)
Max. K Times Rated 2.7 K
kV) Short Circuit Times
Low Current Rated
Fre- Impulse KI Short
Circuit I E K quencey Y E/K Circuit
Breaker Series kV MVA Current
Type Width Amps kA rms Class Class kV rms kV rms kV Crest Cycles Sec. kV rms kA rms kA rms kA Crest
VCP-WR Vacuum Circuit Breaker
50 VCP-WR 250 18, 20, 29 1200 29 4.16 250 4.76 1.24 19 60 5 2 3.85 36 36 97
18, 20, 29 2000
29 3000
50 VCP-WR 350 20, 29 1200 41 4.16 350 4.76 1.19 19 60 5 2 4.0 49 49 132
20, 29 2000
29 3000
75 VCP-WR 500 18, 29 1200 33 7.2 500 8.25 1.25 36 95 5 2 6.6 41 41 111
18, 29 2000
29 3000
150 VCP-WR 500 18 600 18 13.8 500 15 1.30 36 95 5 2 11.5 23 23 62
18, 29 1200
18, 29 2000
29 3000
150 VCP-WR 750 18, 29 1200 28 13.8 750 15 1.30 36 95 5 2 11.5 36 36 97
18, 29 2000
29 3000
150VCP-WR1000 29 1200 37 13.8 1000 15 1.30 36 95 5 2 11.5 48 48 130
29 2000
29 3000
150VCP-WR1500 29 1200 63 13.8 1600 15 1.0 36 95 5 2 15.0 63 63 170
29 2000 or
29 3000 1500
Table 1.1 VCP-WR Ratings
1-1 TYPE VCP-WR (RED LINE SERIES) RATINGS

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1-2 TYPE VCP-WR OUTLINES AND DIMENSIONS
9.58 19.16
A
A
B
B
12.38
9.25“A” “A” 9.25
POLE
UNIT POLE
UNIT POLE
UNIT
27.69
25.19
Close
Floor
Tripper Trip
Floor
Tripper 18.25 10.88 7.23
5.81
MOC
Operator
.13
VCP-WR
2.47
.38 Dia. (2) Near Side
and (2) Far Side
for Mounting 6.88
6.04 3.50 11.45
.77
.77
2.47
Ref
See Expanded
View, Next Page
30.16 Ref
600A, 1200A and
2000A Breaker
Outline
10.70 13.33 (50/350)
12.06
.63 1200A/2000A
.25 600A
19.33 (50/350)
7.83
2.96
2.33 .38
Dia
1.60 7.84 2.00
1.44
1.10
.57
Stroke
Closed
Open
Optional
Top MOC
Operator
19.75
10.33 (50/350)
8.40 (50/350) This Dim.
for 50/350
Only
Figure 1-1 VCP-WR Series 18 Element Outlines and Dimensions (inches)
Note: (1) Refer to page 4 for applicable rating and dimension table covering Series 18 only.
(2) Refer to page 4 for exploded view of terminal block.

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Figure 1-1 VCP-WR Series 18 Element Outlines and Dimensions (inches) -continued
“A” “A”
.35 Dia
(3)
.13 “B” 2.00
1.00 .50
18.50 Ref
19.16 Ref
2.00
7.84 Ref7.83 Ref
19.75 Ref
2.96 Ref
5.81
Optional
Top MOC
Operator
19.33 (50/350)
8.40 Ref (50/350 Only)
This Dim. for
50/350 Only
1.44
.50
10.88
9.25
7.23
5.81 1.58
.312 Hex
Bolts (6)
1.94
1.37 1.05
1.44 .77
.75
.83
.88
5.71
6.87
MOC Operator
.219 R Slot (2)
for Mounting
.438 Dia (2)
for Mounting
.98
5.64
7.50
17.02
16.54
15.35
5.90
5.50
5.64
Trip Floor
Tripper
Close Floor
Tripper
.65
3.50 Ref
.87
.312-18
Clinch
Nuts (9)
Stroke
Close and Trip
Floor Trippers .750
.500 Roller Dia
1.00
MOC Operator
.750 Roller Dia
.63
Stroke
1.25
3.13
.57 .86 1.10
12345678910
11 12 13 14 15 1617 18 19 20 21 22 23 24 2.5
12.38
View A - A View B - B
Expanded View Exploded View of Terminal Block
Series 18 Rating/Dimension Table
Type Continuous Dimension Dimension
Current (60HZ) “A” “B”
50 VCP-WR 250 1200A 5.90 3.00
2000A 5.90 4.00
50 VCP-WR 350 1200A 5.90 3.00
2000A 5.90 4.00
75 VCP-WR 500 1200A 6.50 3.00
2000A 6.50 4.00
150 VCP-WR 500 600A 6.50 3.00
1200A 6.50 3.00
2000A 6.50 4.00
150 VCP-WR 750 1200A 6.50 3.00
2000A 6.50 4.00

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20.66
20.00
34.57
35.15
Trip
Close MOC
SW
Drive
1.75
1.75
4.85
Secondary
Wiring TB
See View
Y - Y
9.39
Trip & Close
Floor Tripper
.18 A
A
MOC
9.62
7.66 20.27
See View
X - X
22.85
12.15
4.03
Figure 1-2 VCP-WR Series 20 Element Outlines and Dimensions (inches)
Front View Side View
Series 20 Rating Table
Type Continuous
Current (60HZ)
50 VCP-WR 250 1200A
2000A
50 VCP-WR 350 1200A
2000A