44
65A7355H01
November 2011
www.eaton.com
Symptom
Inspection area
Probable cause
Undesirable Close
Undesirable Close
Control Circuit
● Shunt closing release circuit is energized
● Auxiliary switch does not switch properly
Mechanism
● Close release latch(does not reset)
● Close button does not reset in time
Fail to Trip
Breaker does not trip
Shunt trip release circuit
● No control power, or its voltage is out of range
(
fuse blown or switch off, or wrong voltage applied)
● Secondary disconnect is not connected
Mechanism
● Entire mechanism non functional
Vacuum Interrupter
● One or more welded
Undesirable Trip
Undesirable Trip
Control Circuit
● Shunt trip circuit is energized
● Auxiliary switch does not switch properly
Mechanism
● Trip latch is damaged
● Trip latch does not reset
● Manual trip push button “O” does not reset
Содержание W-VACi
Страница 1: ...User manual W VACi W VACi 12 17 5 24 kV IEC Vacuum Circuit Breakers...
Страница 2: ...2 65A7355H01 November 2011 www eaton com...
Страница 53: ...65A7355H01 November 2011 www eaton com 53 Fig 6 10 Control Schematic...
Страница 54: ...54 65A7355H01 November 2011 www eaton com...
Страница 55: ...65A7355H01 November 2011 www eaton com 55 Fig 6 11 Control Schematic...
Страница 56: ...56 65A7355H01 November 2011 www eaton com Fig 6 12 Control Schematic...
Страница 57: ...65A7355H01 November 2011 www eaton com 57 Fig 6 13 Control Schematic...
Страница 58: ...58 65A7355H01 November 2011 www eaton com Fig 6 14 Control Schematic...
Страница 59: ...65A7355H01 November 2011 www eaton com 59 Fig 6 15 Control Schematic...
Страница 60: ...60 65A7355H01 November 2011 www eaton com Fig 6 16 Control Schematic...
Страница 61: ...65A7355H01 November 2011 www eaton com 61 Fig 6 17 Control Schematic...
Страница 62: ...62 65A7355H01 November 2011 www eaton com Fig 6 18 Control Schematic...
Страница 63: ...65A7355H01 November 2011 www eaton com 63 Fig 6 19 Control Schematic...