Procedure to measure grounding resistances of electrical...

Details Procedure to measure grounding resistances of electrical... Procedure to measure grounding resistances of electrical...

2006-09-05

2006-09-05

Deb, Anjan (Department: 2858)

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

For fault location

C324S547000

Reexamination Certificate

active

07102360

ABSTRACT:
A procedure to measure the grounding resistances of electrical installations by measuring the loop impedance. According to this procedure, using voltage generator transformers, a current is injected into the loop and this current is measured using current measurement transformers. Two transformers are united into a single transformer, used as impedance transformer, and the loop impedance is established by taking several measurements that allow determining and eliminating parameters of the transformer, by analysis of the measurement results.

REFERENCES:
patent: 5514964 (1996-05-01), Benesh et al.
patent: 6225810 (2001-05-01), Godo et al.
patent: 6271668 (2001-08-01), Sehdev et al.
patent: 6522517 (2003-02-01), Edel

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