Patent · US Expired

Device for locating internal faults in a high-voltage capacitor battery

US4956739A · kind A · utility

8Cited by

1References

3Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Michael Becker · Knittlingen, DE
Klaus Renz · Fürth, DE

Key dates

Filing date	Jun 27, 1989
Grant date	Sep 11, 1990
Priority date	—
Expiry date	Jun 27, 2009

Classification

Technology area (CPC G)Physics
CPC primaryG01R31/50
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A device to locate internal faults in a high-voltage capacitor battery that has a plurality of symmetrically parallel and series-coupled capacitor banks arranged in parallel branches coupled by shunt branches. The phase angles of the shunt currents flowing in the shunt branches relative to the total current flowing in the parallel branches are determined. A fault is located in one of the capacitor banks based upon these determined phase angles.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.