Invention Grant
US07365622B2 Switching device combination for capacitive loads connected to direct voltage
有权
用于连接到直流电压的容性负载的开关器件组合
- Patent Title: Switching device combination for capacitive loads connected to direct voltage
- Patent Title (中): 用于连接到直流电压的容性负载的开关器件组合
-
Application No.: US10578332Application Date: 2004-11-03
-
Publication No.: US07365622B2Publication Date: 2008-04-29
- Inventor: Risto Kajan , Erkki Rajala , Mikael N{dot over (a)}hls , Simo Pöyhönen , Martti Varpela , Markku Talja
- Applicant: Risto Kajan , Erkki Rajala , Mikael N{dot over (a)}hls , Simo Pöyhönen , Martti Varpela , Markku Talja
- Applicant Address: FI Helsinki
- Assignee: ABB OY
- Current Assignee: ABB OY
- Current Assignee Address: FI Helsinki
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: FI20031604 20031105
- International Application: PCT/FI2004/000651 WO 20041103
- International Announcement: WO2005/045864 WO 20050519
- Main IPC: H01H43/00
- IPC: H01H43/00

Abstract:
This publication discloses a switching device combination for capacitive loads (3) connected to a direct voltage. The switching device combination includes an actual switch component (1) for connecting voltage to the capacitive load (3), a charging switch component (2) for connecting charging voltage to the capacitive load in the initial stage, which charging switch component is dimensioned for a lower current than the actual switch component (1), a controller component (4), by means of which the actual switch component (1) is controlled from an open state to a closed state and vice versa, with the aid of a mechanical lever (5), which is connected to a first shaft (6), and delay elements (11) for delaying the connection of the actual switch component (1), so that the closed charging switch component (2) will have time to charge the capacitive load (3) before the connection of the actual switch component (1). According to the invention, the controller component (4) includes a second shaft (7), which is operationally connected to the first shaft, in order to control the charging switch component (2).
Public/Granted literature
- US20070035909A1 Switching device combination for capacitive loads connected to direct voltage Public/Granted day:2007-02-15
Information query