Instruction
Book
Page 6
IB131009EN
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
Summary of Contents for W-VAC Series
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Page 40: ...Instruction Book Page 34 IB131009EN Figure 5 7 Typical DC and AC control schemes...
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