Instrument Transformers Application Guide
How to specify voltage transformers 63 4.1 Type of voltage transformer 63 4.2 Rated insulation level 64 4.2.1 Rated insulation levels according to IEC 64 4.2.2 Basic insulation levels according to IEEE/ANSI 65 4.3 Rated primary and secondary voltage 65 4.4 Rated voltage factor (FV) 66
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