Capacitor charging current measurement method

Details Capacitor charging current measurement method Capacitor charging current measurement method

1997-12-04

2000-03-28

Do, Diep N.

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

324548, G01R 2728, G01R 3112

Patent

active

060436654

ABSTRACT:
A method for accurately measuring the insulation resistance of a capacitor while reducing time taken for the measurement. To this end, a current calculation equation is first obtained based on an equivalent circuit of a capacitor; then, the calculation equation is modified or corrected based on the degree of coincidence between an actually measured current value m(t) and a calculated current value i(t), the former being within a charge-up region of a dielectric polarization component upon initial application of a voltage; next, the current value at a time point of chargeup termination is predicted or estimated by use of this modified calculation equation.

REFERENCES:
patent: 4841228 (1989-06-01), Noguchi et al.
patent: 4931721 (1990-06-01), Berrigan et al.
patent: 5294889 (1994-03-01), Heep et al.
patent: 5510719 (1996-04-01), Yamamoto
patent: 5677634 (1997-10-01), Cooke et al.

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