Eaton 72W-VAC32 Instructions For Installation, Operation And Maintenance

Type
Instructions For Installation, Operation And Maintenance
IB131009EN
W-VAC Breaker Element
W
-
VAC3150A 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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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
5-4 a Type W-VAC 95 kV BIL Breaker Shown With Left Hand Cover Removed for Clarity Purposes ............. 28
5-4 b 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
Breaking Current
& Short Circuit
Duration
Rated Insulation Level
Short
Circuit
Making
Current
Rated Nominal Current
Lighting
Pulse
Withstand
Voltage
Powe
r
Frequency
Withstand
Voltage
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
Breaking Current
& Short Circuit
Duration
Rated Insulation Level
Short
Circuit
Making
Current
Rated Nominal Current
Lighting
Pulse
Withstand
Voltage
Powe
r
Frequency
Withstand
Voltage
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).
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800/1250A Element
800A/1250A = 110kg
Figure 1-3 Type W-VACR 800/1250A. breaker element only outline dimensions (millimeters) and weights (kilograms).
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800/1250A Element
800A/1250A = 110kg
Figure 1-4 Type W-VACR 800/1250A. breaker element only outline dimensions (millimeters) and weights (kilograms).
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2000A Element
2000A = 149kg
Figure 1-5 Type W-VACR 2000A. breaker element only outline dimensions (millimeters) and weights (kilograms).
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2000A Element
2000A = 149kg
Figure 1-6 Type W-VACR 2000A. breaker element only outline dimensions (millimeters) and weights (kilograms).
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2500A Element
2500A = 154kg
Figure 1-7 Type W-VACR up to 2500A, 50kA. breaker element only outline dimensions (millimeters) and weights (kg.).
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Up to 1250A Element
630A = 115kg
800A/1250A = 121kg
(Front View) (Side View)
(Front View)
1600A & 2000A Elements
1600A/2000A = 160kg
(Side View)
Figure 1-8 Type W-VAC breaker element only outline dimensions (millimeters) and weights (kilograms).
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33.3
570
A
350
G
197
325
202
F
F
373
“A” POLE
“B” POLE
“C” POLE
19.34
9.5
Earthing Contacts
Rating
A
B
C
D
E
F
G
Weight Carriage
Up to 15 kV/Up to 1250A to 40kA
570 300 1226 1202 1340 165 470 29
Up to 15 kV/1600A and2000A/Up to 40 kA
719 350 1299 1275 1340 200 620 33
33.3
A
570
G
197
202
373
F
F
“C” POLE
“A” POLE
“B” POLE
Earthing Contacts
440
701
44.6
269
84.4
456.6
538
48.3
228.3
Rating
A
B
C
D
E
F
G
Weight Carriage
Up to 15 kV/Up to 1250A to 40kA
490 300 786 762 738 165 470 23
Up to 15 kV/1600A and2000A/Up to 40 kA
640 350 856 835 736 200 620 25
Figure 1-9 Outline and Dimensions (mm) Type W-VAC breaker element with carriage assembly and cradle assembly
C
E
720
C
1160
80
520
480
795.7
B
355.7
B
D
E
D
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Figure 1-10 Outline and Dimensions (mm) Type W-VAC 3150 breaker with carriage assembly
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SECTION 2: SAFE PRACTICES
W-VAC, W-VACR, and W-VACW breakers are
equipped with high speed, high energy operating mech-
anisms. They are designed with several built-in inter-
locks and safety features to provide safe and proper
operating sequences.
• Do not work on a breaker with the secondary test cou-
pler engaged or fixed secondary connections made.
Failure to disconnect the test coupler could result in an
electrical shock leading to death, personal injury or
property damage.
• 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.
TO PROTECT THE PERSONNEL ASSOCIATED WITH
INSTALLATION, OPERATION, AND MAINTENANCE
OF THESE BREAKERS, THE FOLLOWING PRAC-
TICES MUST BE FOLLOWED:
• Only qualified persons, as defined in the local electri-
cal code who are familiar with the installation and main-
tenance of medium voltage circuits and equipment,
should be permitted to work on these breakers.
• Read these instructions carefully before attempting
any installation, operation or maintenance of these
breakers.
• Always remove the removable breakers from their
enclosures or disconnect the fixed primary connections
associated with fixed breakers before performing any
maintenance. Failure to do so could result in electrical
shock leading to death, severe personal injury or prop-
erty damage.
• Do not use a drawout circuit breaker by itself as the
sole means of isolating a high voltage circuit, Remove
the breaker to the Disconnect position and follow good
lock-out and tagging rules, as well as all applicable
codes, regulations and work rules.
• Do not leave a drawout 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.
• Circuit breaker elements are equipped with safety
interlocks. Do Not remove, interfere with or in any
manner defeat them. This may result in death, bodily
injury or equipment damage.
WARNING
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SECTION 3: RECEIVING, HANDLING AND
STORAGE
The entire W-VAC family of circuit breakers is subjected
to complete factory production tests and inspection
before being packed. They are shipped in packages
designed to provide maximum protection to the equip-
ment during shipment and storage, and, at the same
time, to provide convenient handing. Accessories, such
as the maintenance tool and levering crank are shipped
separately.
3-1 RECEIVING
Until the breaker is ready to be delivered to the
switchgear site for installation, DO NOT remove it from
its container. If the breaker is to be placed in storage,
maximum protection can be obtained by keeping it in its
container.
Upon receipt of the equipment, inspect the container for
any signs of damage or rough handing. Open the con-
tainer carefully to avoid any damage to the contents.
When opening the container, be careful that any loose
items or hardware are not discarded with the packing
material. Check the contents of each package against
the packing list.
Examine the breaker 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 detect-
ed and notify the nearest Eaton Sales Office.
Tools and Accessories
Maintenance Tool: Used to charge the closing springs.
(Style 8064A02G01)
Lifting Yoke: Optional item used to lift the breaker.
(Style 8794C67G01 for up to 1250A breakers)
(Style 8794C68G01 for 1600A, 2000A breakers)
(Style 1C95990G01 for 3150A breakers)
Primary Disconnect Plier: Used to install and remove
breaker primary disconnects.
(Style 591C901G02)
Figure 3-1 Typical tools with lifting yoke shown in use
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Eaton 72W-VAC32 Instructions For Installation, Operation And Maintenance

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Instructions For Installation, Operation And Maintenance

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