Contents
1.1
Data
03
1.2
Construction & Function
03
1.2.1 Breaker Poles
03
1.2.2 Operating mechanism
06
1.3
Maintenance
10
1.3.1 Maintenance schedule
10
1.3.2 Checking and refilling of SF gas
14
6
1.3.3 Control of gas pressure
15
(Only for poles without pressure gauge)
1.3.4 Checking for operating speed and time
16
1.4
Service instruction
17
1.4.1 Fault finding chart
18
1.4.2 Replacement of operating coils
19
1.4.3 Replacement of micro switch
20
1.4.4 Replacement of auxiliary contacts
21
1.4.5 Replacement of motor
21
1.4.6 Replacement of damping device
21
1.4.7 Replacement of operating mechanism
22
1.4.8 Changing of breaker pole
24
1.4.9 HPA - operating gear adjustments
24
1.5
Accessories Spare parts and additional equipment
25
(2)
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: ......