fault calcs for open delta xfmrs
DESCRIPTION
Equations are presented for calculating currents for secondary faults on open delta transformer banks, with the primary windings connected in either open wye or open delta. Fault types considered are three-phase, phase-to-phase between any two phases, and single phase to ground. Included in the calculations are the impedances of the primary system, secondary circuit, and the two transformers which make up the bank.TRANSCRIPT
