Patent · US Expired

Measuring system for enclosed high-voltage switchgear

US5903157A · kind A · utility

1Cited by

3References

11Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Norbert Achatz · Berlin, DE
Jorg Gorablenkow · Berlin, DE

Key dates

Filing date	Dec 8, 1997
Grant date	May 11, 1999
Priority date	—
Expiry date	Dec 8, 2017

Classification

Technology area (CPC H)Electricity
CPC primaryH02H1/0015
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

In a measuring system for an enclosed high-voltage switchgear having at least two poles, each of which is phase segregated, and with sensors for dielectric noise and a detector device connected to them for outputting a signal in the event of an noise, a time comparator is provided that blocks the output of a signal if the time difference between two noise signals from sensors of different phases is less than a certain interval of time, in particular an adjustable interval.

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