F
unctional check is carried out as follows
1. Connect the sensor to the connecting link of the poles, see fig. 10.
2. Check with the aid of vernier callipers that the movement from open to closed
positions is 81 - 85 mm.
3. Adjust the oscilloscopes input to 85 mm, see fig. 9.
4. Make an opening operation. The curve on the oscilloscope should be as shown in
fig. 9.
5. Make a closing operation.
6. If the speeds are not correct, the spring force is to be adjusted. See section 1.4.9
“Adjustment of operating device”.
1.4
Service instructions
Safety instructions - For dismantling and servicing of breakers, the following
steps should be followed:
1. Disconnect the breaker.
2. Pull out the breaker on the door.
3. Manually release the closing springs.
4. Manually release the opening springs.
(17)
Fig - 10
(Connection of capacitive sensor)
Summary of Contents for HPA 12kV
Page 7: ...Fig 3b HPA breaker pole for 36 kV ...
Page 9: ... 7 Fig 5 Circuit Breaker ...
Page 13: ...Fig 7A Maintenance schedule for frequently operated breaker type HPA 1VYN400290 005 11 ...
Page 14: ...Fig 7B Maintenance schedule for frequently operated breaker type HPA 1VYN400290 005 12 ...
Page 15: ...Electrical endurance HPA 13 ...
Page 29: ......
