Power supply unit for protective devices that reduces medium voltage
    1.
    发明公开
    Power supply unit for protective devices that reduces medium voltage 审中-公开
    Spannungsreduzierende WechselstromversorgungseinheitfürNetzschutzgeräteam Mittelspannungsnetz

    公开(公告)号:EP2365618A1

    公开(公告)日:2011-09-14

    申请号:EP10460009.3

    申请日:2010-03-08

    申请人: ABB Research Ltd.

    IPC分类号: H02M1/00 H02H7/00 H01G2/00

    CPC分类号: H02M1/00 H01B17/005

    摘要: The invention deals with an AC power supply unit that reduces voltage for electric power equipment applicable in power distribution systems. The inventive device comprises at least one capacitor (2) which is connected into a transmission line (7) and which is connected in series with the grounded primary winding (5) of a transformer (3) whose secondary winding (6) is connected with the terminals of a protective device (8) connected into the receiver circuit (9) of the power system.

    摘要翻译: 本发明涉及一种能够降低适用于配电系统的电力设备的电压的交流电源单元。 本发明的装置包括至少一个连接到传输线(7)中并与次级绕组(6)连接的变压器(3)的接地初级绕组(5)串联连接的电容器(2) 连接到电力系统的接收器电路(9)中的保护装置(8)的端子。