Table 3 – Gap/Wipe Standard Values (Contactor In New Condition) - Toshiba HCV-1JBU Vacuum Contactor, 1.5kV - 600A HCV-1KAU Vacuum Contactor, 1.5kV - 720A Instruction Manual

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Table 2 – Check Points for Periodic Inspection (cont.)
Check Check Item
Point
Dielectric Measure
Strength main circuit
Open/Close
Operation
Table 3 - Gap/Wipe Standard Values (contactor in new condition).
Parts
Vacuum Normally
Interrupter energized
type
Auxiliary a-contact
Switch
b-contact
Delayed
b-contact
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Check Method
Measure dielectric
strength between
phases and between
circuits and ground.
--- Perform open/close
operation by electric
operation test to
confirm the correct
operation.
Gap
0.091-0.098 in.
(2.3-2.5 mm)
0.157±0.016 in.
(4±0.4 mm)
0.157±0.016 in.
(4±0.4 mm)
0.098±0.012 in.
(2.5±0.3 mm)
MAINTENANCE
Criteria
10kV AC or 14kV DC for
1 minute.
---
Wipe
0.091-0.102 in.
(2.3-2.6 mm)
0.118±0.012 in.
(3±0.3 mm)
0.118±0.012 in.
(3±0.3 mm)
0.177±0.020 in.
(4.5±0.5 mm)
What to do
If breakdown occurs,
contact Toshiba.
If not normal, check
and repair. If
necessary, replace
faulty parts.
Allowable Wear
0.051 in. (1.3 mm)
---