Invention Grant
- Patent Title: Method and apparatus for the measurement of a resistance of a switching contact of an electrical circuit breaker
- Patent Title (中): 用于测量电路断路器的开关触点的电阻的方法和装置
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Application No.: US14804983Application Date: 2015-07-21
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Publication No.: US09547044B2Publication Date: 2017-01-17
- Inventor: Ulrich Klapper , Wernich De Villiers , Reinhard Kaufmann
- Applicant: OMICRON Electronics GmbH
- Applicant Address: AT Klaus
- Assignee: OMICRON ELECTRONICS GMBH
- Current Assignee: OMICRON ELECTRONICS GMBH
- Current Assignee Address: AT Klaus
- Agency: Seyfarth Shaw LLP
- Agent Brian Michaelis; Christopher Baxter
- Priority: EP12006040 20120824
- Main IPC: G01R31/02
- IPC: G01R31/02 ; G01R31/327 ; G01R31/333 ; G01R27/20
Abstract:
An apparatus and method for the measurement of a resistance of a switching contact of an electrical circuit breaker. A first resistance value across the circuit breaker is determined while the circuit breaker is grounded at both sides and the switching contact is closed. Further, a second resistance value across the circuit breaker is determined while the circuit breaker is grounded at both sides and the switching contact is open. The resistance of the closed switching contact is then determined based on the first resistance value and the second resistance value.
Public/Granted literature
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