dY and dD from the same transformer. Will it work ?
dY and dD from the same transformer. Will it work ?
(OP)
I am planning to build a 500 KVA testing trafo for testing 6.6 KV and 3.3 KV motors for no-load and locked rotor losses.
The primary of this would be 415 V, 50 Hz, delta. The secondary would be 6.6 KV wye (neutral grounded) and 3.8 KV delta from the same HV winding whose all six leads will be brought out to enable the switch over.
The primary would be fed from a continuously variable 0 - 415 V, motorized variac (stepless auto) to control the inrush current.
Will this connection of dY and dD from the same trafo work ? Any pitfalls ?
The primary of this would be 415 V, 50 Hz, delta. The secondary would be 6.6 KV wye (neutral grounded) and 3.8 KV delta from the same HV winding whose all six leads will be brought out to enable the switch over.
The primary would be fed from a continuously variable 0 - 415 V, motorized variac (stepless auto) to control the inrush current.
Will this connection of dY and dD from the same trafo work ? Any pitfalls ?






RE: dY and dD from the same transformer. Will it work ?
RE: dY and dD from the same transformer. Will it work ?
RE: dY and dD from the same transformer. Will it work ?
Bill
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"Why not the best?"
Jimmy Carter
RE: dY and dD from the same transformer. Will it work ?
RE: dY and dD from the same transformer. Will it work ?
Question: Do you really need different connections? Is that to get two voltage ranges?
Gunnar Englund
www.gke.org
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100 % recycled posting: Electrons, ideas, finger-tips have been used over and over again...
RE: dY and dD from the same transformer. Will it work ?
I was a bit worried whether dD would have some circulating current issues.
RE: dY and dD from the same transformer. Will it work ?