PHASE_SEQUENCE_DETECTOR_II

Published:2009/7/5 23:15:00 Author:May | From:SeekIC

This circuit derives its supply voltage, VCC and Vdd from φC. This factor, together with the neon lamps and zener diodes in the phase inputs, establishes 50% threshold that detects low voltage or absence of one or more phases. Relay K1 energizes for correct phase volts.



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