A circuit for indicating abnormality of three-mode surge...

Details A circuit for indicating abnormality of three-mode surge... A circuit for indicating abnormality of three-mode surge...

H - Electricity

02

H

H02H 1/00 (2006.01) H02H 9/00 (2006.01) H02H 9/04 (2006.01)

Patent

CA 2326729

A circuit for indicating abnormality of a three-mode surge absorber of a public electric power is disclosed. The circuit is serially connected between the input end and output end of a public electric power supply for indicating the abnormality of a three-mode surge absorbing device of a public power supply. The circuit includes a first two-end fuse, a first surge absorbing device, an abnormal indication circuit, a second surge absorbing device and a second two-end fuse. Other than indicating the abnormality of the L-N, L-G, N-G surge absorbing devices, the present invention can prevent current leakage in above devices.

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