Patent · US Expired

Multi-pole low voltage circuit breaker with one current measuring device per line

US6754059B2 · kind B2 · utility

7Cited by

5References

20Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Michael Bach · Kildeer, US
Detlev Schmidt · Berlin, DE
Michael Sebekow · Berlin, DE
Guenter Seidler-Stahl · Berlin, DE
Ingo Thiede · Berlin, DE
Sezai Tuerkmen · Berlin, DE

Key dates

Filing date	Aug 1, 2002
Grant date	Jun 22, 2004
Priority date	—
Expiry date	Oct 19, 2022

Classification

Technology area (CPC H)Electricity
CPC primaryH01H33/027
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A current measuring device for a multi-pole voltage circuit breaker includes a support body with a through opening for a current conductor for each of the poles and a receiving chamber, surrounding the through opening for secondary components of current sensors and/or current transformers. The support body is essentially plate-like and rectangular and forms part of the rear wall of the circuit breaker. Should Rogowski coils be used as secondary components of a transformer, then adjustable voltage dividers are also mounted on the support body for interdependent adjustment. The multi-pole current measuring device simplifies the production of circuit breakers as approved components.

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