1 phase with unequal impedance
1 phase with unequal impedance
(OP)
There are some single phase banks transformer banks in our system which have back up transformers with different impedances. It could happen that if a certain transformer failed a backup may be used which has an impedance 10% different from the remaining 2. Has anyone ran into this before...having a bank of 3 single phase transformers that have unequal impedances?? What are the precautions??
Thanks in advance for any replys.
ePOWEReng
Thanks in advance for any replys.
ePOWEReng






RE: 1 phase with unequal impedance
Bill
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"Why not the best?"
Jimmy Carter
RE: 1 phase with unequal impedance
Any ideas about what type of zero and negative sequence currents and voltages can be seen during normal loading? I would expect it to be trivial, but not really sure...