Non-grounding checking system

Details Non-grounding checking system Non-grounding checking system

1981-12-22

1984-02-07

Krawczewicz, Stanley T.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

G01R 3102

Patent

active

044306105

ABSTRACT:
The grounding of an electrical apparatus is monitored by a primary circuit which is inductively coupled to a coil connected in series between the grounding line of the power cord and a grounding terminal on the electrical apparatus to which a second grounding line is connected.

REFERENCES:
patent: 2737765 (1973-06-01), Lee et al.
patent: 3492567 (1970-01-01), Rissolo
patent: 4352058 (1982-09-01), Westra

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