Toshiba HV6AS Instruction Manual page 32

Page 28
Table 2. Check Points for Inspection (cont'd)
Check Point Check Item
Auxiliary Terminals loose
Switch or disconnected
Case/contacts
Control Smooth
Circuits movement of
motor charging
mechanism
Terminals loose
or disconnected
Insulation Meaure main
Resistance circuit to ground
Measure-
ment
Meaure
between main
circuit terminals
Meaure control
circuits to
ground
Check Method
Visual Make sure terminals are
inspection. not loose or disconnected.
Tighten using a
screwdriver.
Visual Make sure there is no
inspection. damage or warping.
Energize the Breaker (motor-operated
control circuit. type) should charge
quickly and smoothly.
Visual Make sure terminals are
inspection. not loose or disconnected.
Tighten using a
screwdriver.
Megger test at Resistance should be
1000V.
500MΩ or greater.
Megger test at Resistance should be
1000V.
100MΩ or greater.
Megger test at Resistance should be
500V.
2MΩ or greater.
MAINTENANCE
Criteria
Repair if
disconnected.
Tighten if loose.
See Table 1 for
tightening torques.
Replace if damaged
or warped.
If the circuit fails to
operate, check the
cause and repair.
Repair if
disconnected.
Tighten if loose.
See Table 1 for
tightening torques.
If the insulation
resistance is low,
wipe off the vacuum
interrupter and other
insulation surfaces
with a clean dry
cloth and then
repeat the test.
What to do