Does anyboydy knows how to ratio a delta/zig-zag transformer?
Does anyboydy knows how to ratio a delta/zig-zag transformer?
(OP)
I have 3 phase 480/208-120 delta/zig-zag transformer that gave me bad ratio when tested with a Vanguard TTR test set. Any ideas how to ratio this transformer using a voltage source on the primary and a voltmeter on the secondary?






RE: Does anyboydy knows how to ratio a delta/zig-zag transformer?
If memory serves I tested it as a Delta-Delta
RE: Does anyboydy knows how to ratio a delta/zig-zag transformer?
This is necassary because each leg of the secondary consists of groups that have induced voltage from two separate primary legs.