protection of highvoltage transformer by cutoff fuse
protection of highvoltage transformer by cutoff fuse
(OP)
in our grid there are many cutoff fuse for protection of 30mva transformers,and one of our eng think fuses are better than relay.it is right from your point of view?
he says for relay operation you need to dc,operate of relay,operate of breaker,operate of trip relay and so on.but fuse just operate.!
he says for relay operation you need to dc,operate of relay,operate of breaker,operate of trip relay and so on.but fuse just operate.!






RE: protection of highvoltage transformer by cutoff fuse
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If we learn from our mistakes I'm getting a great education!
RE: protection of highvoltage transformer by cutoff fuse
Furthermore, ask how would he integrate important mechancial protections such as the pressure relief device, Buchholtz, and oil & winding temp indicators into his fuse-based scheme.
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If we learn from our mistakes I'm getting a great education!
RE: protection of highvoltage transformer by cutoff fuse
RE: protection of highvoltage transformer by cutoff fuse
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If we learn from our mistakes I'm getting a great education!
RE: protection of highvoltage transformer by cutoff fuse
RE: protection of highvoltage transformer by cutoff fuse
and a fuse is cheaper than a transe.
and lost another although a breaker was operated.
RE: protection of highvoltage transformer by cutoff fuse
Go ahead and just use fuses, but keep plenty of spare transformers on hand.
RE: protection of highvoltage transformer by cutoff fuse
i had no idea other parts of the world actually relied on fuses to protect a transformer. seems absurd to me.
RE: protection of highvoltage transformer by cutoff fuse
But fuse links for a 30 MVA is really not providing adequate protection for the transformer as others have mentioned.
RE: protection of highvoltage transformer by cutoff fuse
That being said for low voltage transformers the new reclosers available these days are pretty sophisticated. No differential capabilities but equiped with communications to downstream devices.
RE: protection of highvoltage transformer by cutoff fuse
Alan
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"It's always fun to do the impossible." - Walt Disney