Method and apparatus for open neutral fault detection

Details Method and apparatus for open neutral fault detection Method and apparatus for open neutral fault detection

G - Physics

01

R

G01R 29/16 (2006.01) G01R 19/165 (2006.01) G01R 31/02 (2006.01) G01R 31/327 (2006.01) H01H 83/00 (2006.01) H01H 83/14 (2006.01) G08B 21/00 (2006.01)

Patent

CA 2587965

A method and apparatus for detecting an open neutral fault condition in a circuit including a neutral conductor and first and second live conductors. The method begins with determining a voltage imbalance between a first voltage between the first live conductor and the neutral conductor, and a second voltage between the second live conductor and the neutral conductor. Next, the voltage imbalance is compared to a predetermined threshold value. If the voltage imbalance exceeds the predetermined threshold value, an alarm signal is generated.

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