H - Electricity – 02 – H
Patent
H - Electricity
02
H
H02H 1/00 (2006.01) H02H 9/00 (2006.01) H02H 9/04 (2006.01)
Patent
CA 2326706
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 so as to achieve the object of indicating an obvious indication to the users. The circuit includes a first surge absorbing device, a first three-end fuse, 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 as destroys occurs in the diverse modes.
Chou Jonie
Ridout & Maybee Llp
LandOfFree
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