1.4.4 Replacement of auxiliary contacts
Positioning of auxiliary contacts, see fig. 5. The contacts are fixed with 4
screws. Remove the 2 links as shown in the fig. 11A Disconnecting cable (note
marking before removing switch and connect in same position).
1.4.5 Replacement of motor
Motor is fixed with 4 screws. There are flat terminals for cables. See fig. 13.
1.4.6 Replacement of Damping device
When replacing the damping device, the closing spring must be charged. For
this work the release mechanism for the spring unit must be secured, see fig. 14.
Securing the device can be achieved with a G-clamp.
Note:
For extra security both the opening and the closing springs must be
fastened. On one side of the damping device there is an adjustment screw. The
position of this screw should not be altered.
(21)
Fig - 13
(Replacement of Motor)
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: ......
