Apparatus and method of monitoring insulation of a DC...

Details Apparatus and method of monitoring insulation of a DC... Apparatus and method of monitoring insulation of a DC...

2005-03-08

2005-03-08

Deb, Anjan (Department: 2858)

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

Of individual circuit component or element

C324S541000

Reexamination Certificate

active

06864688

ABSTRACT:
Insulation monitoring of an electrical network such as a DC network which is electrically insulated with respect to the ground of a device, includes at least two insulation monitoring devices that monitor different network sections, which can be isolated by one or more switches. Non-contacting switches are used to alternatingly connect and isolate respective measuring resistors of the monitoring devices to, and from, ground, as a result of which the insulation monitoring devices can not negatively affect each other's measurements.

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U.S. Appl. No. 10/361,151, Kollenda et al., filed Feb. 6, 2003.

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