A 4160/480Y-277 VAC three phase power transformer bank as configured in figure "3" of the illustration produces the following voltages when 4160 VAC is applied across A1 to B1, B1 to C1, and C1 to A1. What condition is indicated? Illustration EL-0084 • A2 to B2: 480 VAC • B2 to C2: 0 VAC • C2 to A2: 0 VAC • A2 to N2: 277 VAC • B2 to N2: 277 VAC • C2 to N2: 0 VAC

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