6.1 HVX-E
(withdrawable unit)
Perform functional tests:
1. Charge energy-storing device
using the crank. Check the spring
position indicator.
2. Switch circuit-breaker on and off
several times by hand. Check po-
sition indicator.
3. Move the withdrawable part to its
service and disconnected positi-
on via the crank handle.
Check mechanical interlocks bet-
ween the HVX-E and the cell.
Check position indication.
4. Check electrical functions of con-
trol and operating devices.
Apply supply voltage.
5. Actuate the releases to perform
switching operations and check
functions/interlocks. Watch posi-
tion indicators.
6. Rack the circuit-breaker in and
out via the motor-drive (optional).
At the same time, check the posi-
tion indicators and the interlocks
in the circuit-breaker and with re-
gard to other devices.
6.2 HVX-F
(fixed type)
Check assembly work:
– Check securing bolts.
– Check the conductor bars'
screw couplings using a tor-
que wrench.
– Check the screw coupling of
the earth terminal.
Perform functional tests:
1. Charge energy-storing device
using the crank. Check the spring
position indicator.
2. Switch circuit-breaker on and off
several times by hand. Check po-
sition indicator.
3. Check electrical functions of con-
trol and operating devices.
Apply supply voltage.
4. Actuate the releases to perform
switching operations and check
functions / interlocks.
Watch position indicators.
5. Check interlocks between circuit-
breaker and other devices.
17
To Next Page
Loading...