Eaton W-VAC Series Programming manual

IB131009EN
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W-VAC Breaker Element W
-
VAC 3150A Breaker with Carriage
A
ssembl
y
for Single Tier Switchgear
W-VAC Breaker with Carriage
A
ssembl
y
for Single Tier Switchgea
r
W-VAC Breaker with Cradle
A
ssembl
y
for Double Tier Switchgea
r
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Instruction Book
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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 EATON.
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 THE
AMERICAN NATIONAL STANDARDS INSTITUTE
(ANSI). SERIOUS INJURY, INCLUDING DEATH, CAN
RESULT FROM FAILURE TO FOLLOW THE PROCE-
DURES OUTLINED IN THIS MANUAL. THESE CIR-
CUIT BREAKER ELEMENTS ARE SOLD PURSUANT
TO A NON-STANDARD PURCHASING AGREEMENT
WHICH LIMITS THE LIABILITY OF THE MANUFAC-
TURER.
Eaton Corporation
Power Components Division
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 an Eaton representative.
WARNING WARNING

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TABLE OF CONTENTS
SECTION 1 INTRODUCTION PAGE
1-1 Type W-VAC, W-VACR and W-VACW Breaker Ratings.......................................................................................1
SECTION 2 SAFE PRACTICES
SECTION 3 RECEIVING, HANDLING AND STORAGE
3-1 Receiving...............................................................................................................................................................14
3-2 Handling................................................................................................................................................................15
3-3 Storage..................................................................................................................................................................15
SECTION 4 INSTALLATION
4-1 Initial Inspection and Operation ............................................................................................................................22
4-2 Manual Operation Check......................................................................................................................................22
4-3 Vacuum Interrupter Integrity .................................................................................................................................22
4-4 Insulation...............................................................................................................................................................22
4-5 Contact Erosion and Wipe....................................................................................................................................22
4-6 Primary Circuit Resistance....................................................................................................................................22
4-7 Nameplate.............................................................................................................................................................22
4-8 Electrical Operations Check..................................................................................................................................22
4-9 Breaker/Compartment Interface Check................................................................................................................24
SECTION 5 DESCRIPTION AND OPERATION
5-1 Interrupter Assembly.............................................................................................................................................26
5-1.1 Vacuum Interrupter ...............................................................................................................................................26
5-1.2 Contact Erosion Indicator (Except 3150A) ...........................................................................................................27
5-1.3 Contact Erosion Indicator (3150A Only)...............................................................................................................27
5-1.4 “T” Cutout Loading Spring Indicator......................................................................................................................28
5-1.5 Contact Wipe and Stroke......................................................................................................................................28
5-1.6 Pole Unit Support Molding ....................................................................................................................................28
5-2 Stored Energy Mechanism....................................................................................................................................29
5-2.1 Operation of Stored Energy Mechanism ..............................................................................................................29
5-2.2 Charging................................................................................................................................................................29
5-2.3 Closing Operation..................................................................................................................................................29
5-2.4 Tripping Operation.................................................................................................................................................32
5-2.5 Trip Free Operation...............................................................................................................................................32
5-3 Control Scheme ....................................................................................................................................................32
5-3.1 Timing....................................................................................................................................................................32
5-3.2 Secondary Disconnects ........................................................................................................................................32
5-3.3 Undervoltage Trip Device......................................................................................................................................33
5-4 Interlocks...............................................................................................................................................................33
5-4.1 Floor Tripping, Spring Release and Anti-Latch Interlocks....................................................................................33
5-4.2 Levering Interlock..................................................................................................................................................33
5-4.3 Anti-Close Interlock...............................................................................................................................................33
5-4.4 Earthing Drive Interlock.........................................................................................................................................33

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5-5 Miscellaneous........................................................................................................................................................36
5-5.1 Earthing Contact....................................................................................................................................................36
5-5.2 Operations Counter ...............................................................................................................................................36
5-6 Levering Mechanism..............................................................................................................................................36
5-7 Circuit Breaker Interfacing.....................................................................................................................................36
5-7.1 Electrical Clearances.............................................................................................................................................36
SECTION 6 INSPECTION AND MAINTENANCE
6-1 Warning..................................................................................................................................................................37
6-2 Frequency of Inspection ........................................................................................................................................37
6-3 Inspection and Maintenance Procedures..............................................................................................................38
6-4 Vacuum Interrupter Integrity Test..........................................................................................................................37
6-5 Contact Erosion (Except 3150A)...........................................................................................................................40
6-5.1 Contact Erosion (3150A Only) ..............................................................................................................................40
6-5.2 Contact Wipe (All Ratings)....................................................................................................................................40
6-6 Insulation................................................................................................................................................................41
6-7 Insulation Integrity Check ......................................................................................................................................41
6-8 Primary Circuit Resistance Check.........................................................................................................................42
6-9 Mechanism Check.................................................................................................................................................42
6-9.1 CloSure Test..........................................................................................................................................................42
6-10 Lubrication..........................................................................................................................................................47
6-11 Troubleshooting Chart........................................................................................................................................47
SECTION 7 RENEWAL PARTS
7-1 General ..................................................................................................................................................................50
7-2 Ordering Instructions .............................................................................................................................................50
FIGURES
Figure Title Page
1-1 Type W-VACR 630A Breaker Element Only Outline Dimensions (millimeters) & Weights (Kilograms)....3
1-2 Type W-VACR 630A Breaker Element Only Outline Dimensions (millimeters) & Weights (Kilograms)....4
1-3 Type W-VACR 800/1250A Breaker Element Only Outline Dimensions (millimeters) & Weights (kg).......5
1-4 Type W-VACR 800/1250A Breaker Element Only Outline Dimensions (millimeters) & Weights (kg).......6
1-5 Type W-VACR 800/1250A Breaker Element Only Outline Dimensions (millimeters) & Weights (kg).......7
1-6 Type W-VACR 2000A Breaker Element Only Outline Dimensions (millimeters) & Weights (kg)..............8
1-7 Type W-VACR 2500A Breaker Element Only Outline Dimensions (millimeters) & Weights (kg)..............9
1-8 Type W-VAC Breaker Element Only Outline Dimensions (millimeters) and Weights (Kilograms)..........10
1-9 Outline and Dimensions (mm) Type W-VAC Breaker Element with Carriage
Assembly and Cradle Assembly........................................................................................................................11
1-10 Outline and Dimensions (mm) Type W-VAC 3150 Breaker with Carriage Assembly..............................12
3-1 Typical VCP-W Tools and Accessories.......................................................................................................14
3-2 Typical Front View VCP-W Vacuum Circuit Breaker Element................................................................... 16
3-3 Typical VCP-W Vacuum Circuit Breaker Element with Front Cover Removed .......................................17
3-4 Typical Rear View VCP-W Vacuum Circuit Breaker Element ................................................................... 18
3-5 Typical VCP-W Vacuum Circuit Breaker Element Escutcheon................................................................. 19
3-6 Front and Rear External View W-VAC Breaker With Cradle Assembly for
Double Tier Switchgear ...............................................................................................................................20
3-7 Front and Rear External View W-VAC 3150A Breaker with Carriage Assembly for
Single Tier Switchgear.................................................................................................................................21

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4-1 Type W-VAC Breaker Manual Operation (Single Tier Breaker Shown) ..................................................23
5-1 Flush Mounted Configuration......................................................................................................................26
5-2 Behind the Door Configuration ...................................................................................................................27
5-3 Closeup of Type W-VAC Breaker Vacuum Interrupters and Current Carrying System...........................27
5-4a Type W-VAC 95 kV BIL Breaker Shown With Left Hand Cover Removed for Clarity Purposes.............28
5-4b Type W-VAC 3150 Ampere Breaker Closeup of Completely Enclosed Pole Units.................................28
5-5 Closing Cam and Trip Linkage ...................................................................................................................30
5-6 Charging Schematic....................................................................................................................................31
5-7 Typical DC and AC Control Schemes......................................................................................................34
5-8 Undervoltage Trip Device Configuration.....................................................................................................35
5-9 Closeup of Type W-VACW Breaker Vacuum Interrupters and Current Carrying System.......................36
6-1 Lubrication Points........................................................................................................................................37
6-2 Vacuum Interrupter Showing Contact Erosion Indicator With Breaker Open..........................................40
6-3 Vacuum Interrupter Showing Contact Erosion Indicator With Breaker Closed........................................40
6-4 Breaker Shown Closed and Interrupter Erosion Satisfactory (3150A).....................................................41
6-5 Breaker Shown Colsed and Interrupter Erosion Unsatisfactory (3150A).................................................41
6-6 “T” Contact Wipe Indicator..........................................................................................................................42
6-7 Wipe Indication............................................................................................................................................42
TABLES
Table
Title Page
1.1 Type W-VAC and W-VACW Vacuum Circuit Breaker Ratings....................................................................1
1.2 Type W-VACR Vacuum Circuit Breaker Ratings ......................................................................................... 2
5.1 Typical Opening and Closing Times Value ................................................................................................32
6.1 Test Voltage................................................................................................................................................39
6.2 Typical Resistance Measurements.............................................................................................................42
7.1 Recommended W-VAC and W-VACW Spare Parts ..................................................................................50

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SECTION 1: INTRODUCTION
The purpose of this book is to provide instructions for
unpacking, storage, installation, operation and mainte-
nance of Types W-VAC, W-VACR, and W-VACW
Vacuum Circuit Breakers. They are a horizontal drawout
type removable interrupting element design, unless
there is an “R” in the designation.The “R” as in W-VACR
indicates a fixed breaker configuration. They were
designed specifically to IEC 56 Standards for reliable
performance. All types can be applied in single tier or
double tier switchgear applications, with the basic
breaker element applicable to retrofitting. Reliable con-
trol and protection are achieved though the use of the
W-VAC family of breakers.
1-1 W-VAC, W-VACR AND W-VACW RATINGS
SATISFACTORY PERFORMANCE OF THESE
BREAKERS IS CONTINGENT UP-ON PROPER
APPLICATION, CORRECT INSTALLATION AND
ADEQUATE MAINTENANCE. THIS INSTRUCTION
BOOK MUST BE CAREFULLY READ AND FOL-
LOWED IN ORDER TO OBTAIN OPTIMUM PERFOR-
MANCE FOR LONG USEFUL LIFE OF THE CIRCUIT
BREAKERS.
TYPES W-VAC, W-VACR AND W-VACW BREAKERS
ARE PROTECTIVE DEVICES, AS SUCH, THEY ARE
MAXIMUM RATED DEVICES. THEREFORE, THEY
SHOULD NOT UNDER ANY CIRCUMSTANCES BE
APPLIED OUTSIDE THEIR NAMEPLATE RATINGS.
Table 1.1 Type W-VAC and W-VACW Vacuum Circuit Breaker Ratings
Circuit
Breaker
Type
Rated
Voltage
at
50-60HZ
Frequency
Rated Short Circuit
BreakingCurrent
& Short Circuit
Duration
Rated Insulation Level
Short
Circuit
Making
Current
Rated Nominal Current
Lighting
Pulse
Withstand
Voltage
Powe
r
Frequency
Withstand
Voltage
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kV Hz kA Sec kV kV kA (Peak) Amperes
36W-VAC25 3.6 50/60 25 3 40 10 63 630, 1250, 2000,3150
72W-VAC16 7.2 50/60 16 3 60 20 40 630, 800, 1250
72W-VAC20 7.2 50/60 20 3 60 20 50 630, 800, 1250, 1600
72W-VAC25 7.2 50/60 25 3 60 20 63 630, 800, 1250, 1600, 2000,3150
72W-VAC32 7.2 50/60 31.5 3 60 20 79 1250, 2000
72W-VAC40 7.2 50/60 40 3 60 20 100 3150
120W-VAC16 12 50/60 16 3 75 28 40 630, 800, 1250
120W-VAC20 12 50/60 20 3 75 28 50 630, 800, 1250, 1600
120W-VAC25 12 50/60 25 3 75 28 63 630, 800, 1250, 1600, 2000,3150
120W-VAC32 12 50/60 31.5 3 75 28 79 1250, 2000
120W-VAC40 12 50/60 40 3 75 28 100 1250, 2000,3150
120W-VAC50 12 50/60 50 3 75 28 125 3150
150W-VAC16 15 50/60 16 3 95 36 40 630, 800, 1250
150W-VAC20 15 50/60 20 3 95 36 50 630, 800, 1250, 1600
150W-VAC25 15 50/60 25 3 95 36 63 630, 800, 1250, 1600, 2000,3150
150W-VAC32 15 50/60 31.5 3 95 36 79 1250, 2000
150W-VAC40 15 50/60 40 3 95 36 100 3150
150W-VAC50 15 50/60 50 3 95 36 125 3150
175W-VAC16 17.5 50/60 16 3 95 38 40 630, 800, 1250
175W-VAC20 17.5 50/60 20 3 95 38 50 630, 800, 1250, 1600
175W-VAC25 17.5 50/60 25 3 95 38 63 630, 800, 1250, 1600, 2000,3150
175W-VAC32 17.5 50/60 31.5 3 95 38 79 630, 800, 1250, 1600
175W-VAC40 17.5 50/60 40 3 95 38 100 3150
120W-VACW16 12 50/60 16 3 75 42 40 630, 800, 1250
120W-VACW20 12 50/60 20 3 75 42 50 630, 800, 1250, 1600
120W-VACW25 12 50/60 25 3 75 42 63 630, 800, 1250, 1600, 2000
120W-VACW32 12 50/60 31.5 3 75 42 79 1250, 1600, 2000
120W-VACW40 12 50/60 40 3 75 42 100 1250, 2000
150W-VACW16 15 50/60 16 3 95 42 40 630, 800, 1250
150W-VACW20 15 50/60 20 3 95 42 50 630, 800, 1250, 1600
150W-VACW25 15 50/60 25 3 95 42 63 630, 800, 1250, 1600, 2000
150W-VACW32 15 50/60 31.5 3 95 42 79 1250, 2000
150W-VACW40 15 50/60 40 3 95 42 100 1250, 2000
WARNING

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Table 1.2 Type W-VACR Vacuum Circuit Breaker Ratings
Circuit
Breaker
Type
Rated
Voltage
at
50-60HZ
Frequency
Rated Short Circuit
BreakingCurrent
& Short Circuit
Duration
Rated Insulation Level
Short
Circuit
Making
Current
Rated Nominal Current
Lighting
Pulse
Withstand
Voltage
Powe
r
Frequency
Withstand
Voltage
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kV Hz kA Sec kV kV kA (Peak) Amperes
36W-VACR16 3.6 50/60 16 3 40 20 40 630, 800, 1250,
36W-VACR20 3.6 50/60 20 3 40 20 50 630, 800, 1250
36W-VACR25 3.6 50/60 25 3 40 20 63 630, 800, 1250, 2000
72W-VACR16 7.2 50/60 16 3 60 20 40 630, 800, 1250
72W-VACR20 7.2 50/60 20 3 60 20 50 630, 800, 1250
72W-VACR25 7.2 50/60 25 3 60 20 63 630, 800, 1250, 2000
72W-VACR32 7.2 50/60 31.5 3 60 20 80 1250, 2000
72W-VACR40 7.2 50/60 40 3 60 20 100 1250, 2000
120W-VACR16 12 50/60 16 3 75 28 40 630, 800, 1250
120W-VACR20 12 50/60 20 3 75 28 50 630, 800, 1250
120W-VACR25 12 50/60 25 3 75 28 63 630, 800, 1250, 2000
120W-VACR32 12 50/60 31.5 3 75 28 80 1250, 2000
120W-VACR40 12 50/60 40 3 75 28 100 1250, 2000
120W-VACR50 12 50/60 50 3 75 28 125 1250, 2000, 2500
150W-VACR16 12 50/60 16 3 95 36 40 630, 800, 1250
150W-VACR20 12 50/60 20 3 95 36 50 630, 800, 1250
150W-VACR25 12 50/60 25 3 95 36 63 630, 800, 1250, 2000
150W-VACR32 12 50/60 31.5 3 95 36 80 1250, 2000
150W-VACR40 12 50/60 40 3 95 36 100 1250, 2000

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630A Element
630A = 105kg
Figure 1-1 Type W-VACR 630A. breaker element only outline dimensions (millimeters) and weights (kilograms).

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630A Element
630A = 105kg
Figure 1-2 Type W-VACR 630A. breaker element only outline dimensions (millimeters) and weights (kilograms).