Open neutral protection

Details Open neutral protection Open neutral protection

H - Electricity

02

H

348/39

H02H 3/14 (2006.01)

Patent

CA 1078503

OPEN NEUTRAL PROTECTION ABSTRACT OF THE DISCLOSURE An artificial neutral voltage derived from the voltages on both energized lines of a three-wire, single- phase energy supply system is compared to the voltage on the neutral line. Comparator means energize interrupter means to cause the cessation of a current flow in the energized lines of the circuit in the event the neutral line voltage is more than a predetermined value above or below the artificially derived neutral voltage for protection in the event an open neutral line condition occurs even when loads are not attached to the energized power lines.

246446

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