Invention Grant
- Patent Title: Electrical switching apparatus providing coordinated opening with a circuit interrupter and method of operating the same
- Patent Title (中): 提供具有电路断续器的协调开启的电气开关装置及其操作方法
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Application No.: US12476451Application Date: 2009-06-02
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Publication No.: US08094426B2Publication Date: 2012-01-10
- Inventor: Joe M. Kellis , Lawrence B. Farr
- Applicant: Joe M. Kellis , Lawrence B. Farr
- Applicant Address: US OH Cleveland
- Assignee: Eaton Corporation
- Current Assignee: Eaton Corporation
- Current Assignee Address: US OH Cleveland
- Agent Martin J Moran
- Main IPC: H02H3/00
- IPC: H02H3/00

Abstract:
An electrical switching apparatus includes a number of separable contacts, an operating mechanism structured to open and close the separable contacts, a number of sensors structured to sense at least current flowing through the separable contacts, and a processor structured to cooperate with the operating mechanism to open and close the separable contacts. The processor determines a fault from the sensed current flowing through the separable contacts. The processor further responsively opens the separable contacts if the sensed current associated with the fault is less than the interrupting rating of the electrical switching apparatus. The processor keeps the separable contacts closed and waits for another circuit interrupter to interrupt the fault if the sensed current associated with the fault is greater than the interrupting rating.
Public/Granted literature
Information query