Measuring array

Details Measuring array Measuring array

2007-05-14

2009-08-18

Nguyen, Vincent Q (Department: 2831)

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

For fault location

C324S555000

Reexamination Certificate

active

07576547

ABSTRACT:
The measuring array with an earth connection point (5) for determining the insulation resistance (Riso) of an energized electrical apparatus or of an installation with a supply voltage UBwith a positive pole (6) and a negative pole (7), two switches (S1, S2) or a corresponding two-way switch being provided for creating a current path between one of the two poles and said earth connection point (5) in order to determine the insulation resistance (Riso) generally obtained when one or a plurality of insulation faults occur at any potential reference, two measurements being performed one after the other for determining the insulation resistance, the first switch (S1) being closed and the second switch (S2) open during the first of these two measurements and the first switch (S1) being open and the second switch (S2) closed during the second of these measurements.

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