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  1. niceyuan

    TVSS exploded

    Thanks for the replies: 1. When we removed original feeders and inserted gensets supplies the same setup was utilized we have y secondary with ground and neutral but we have no neatral load. 2. WE have VFDs and other harmonics contributor loads but on the downstream distribution panels we have...
  2. niceyuan

    TVSS exploded

    Dear All: Another problem: As a result of the damaged s/s, we did rewired our system to accomodate injection of 4 rented 480V gensets to our existing switchgears. Our existing system has 4-4160v feeders from s/s supplying 4 low voltage switchgears through 2mva xformers (1 for each feeder. Each...
  3. niceyuan

    possible cause of burned switchgear

    Dear all, We have 115 kV s/s; 20MVA xformer 115kv/4160V; type tested alstom switchgear with siemens controls and protection; The controls was burned started probably from the main CB controls compartment. What seems to be the reason? The station has 2 exhaust fans on one side and three louvered...

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