Invention Grant
- Patent Title: Switchgear with switching device driven by propellant charge
- Patent Title (中): 开关设备由推进剂充电驱动
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Application No.: US13757586Application Date: 2013-02-01
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Publication No.: US09184004B2Publication Date: 2015-11-10
- Inventor: Dietmar Gentsch
- Applicant: ABB Technology AG
- Applicant Address: CH Zurich
- Assignee: ABB TECHNOLOGY AG
- Current Assignee: ABB TECHNOLOGY AG
- Current Assignee Address: CH Zurich
- Agency: Buchanan Ingersoll & Rooney PC
- Priority: EP12000638 20120201
- Main IPC: H01H39/00
- IPC: H01H39/00 ; H01H9/54

Abstract:
A switchgear includes a switching device, which is driven by a propellant chemical charge or fast acting switch. The switchgear includes a current or fault current detection unit, and an optical sensor unit for light arc or fault light arc detection, without the need of having an auxiliary voltage applied. In order to reduce the closing time of an earthing switch, the electrical circuit of an inductive current detection unit is electrically connected in series with a light sensing switching path, and a current signal directly ignites the propellant chemical charge or fast acting switch by using a limited electronic device.
Public/Granted literature
- US20130194707A1 SWITCHGEAR WITH SWITCHING DEVICE DRIVEN BY PROPELLANT CHARGE Public/Granted day:2013-08-01
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