The utility model discloses a secondary control circuit of a permanent magnet vacuum high voltage switch, which comprises a switch contact, a closing switch, a dry signal controller and a silicon-controlled silicon connected with the action mechanism of the permanent magnet vacuum high voltage switch; a closing switch and a dry signal controller are connected in parallel; the output pin of the dry signal controller is connected with a silicon-controlled control terminal; a silicon-controlled P1 terminal is connected with one pole of the power supply signal, and a P2 terminal. The other pole of the power supply signal is connected at the end, and the closing coil is connected at the N1 and N2 terminals; the P1 terminal, the switch contacts, the dry signal controller and the N2 terminal of the SCR are connected in series. The utility model also provides a permanent magnet vacuum high voltage switch including a secondary control circuit of the permanent magnet vacuum high voltage switch. Through reliable circuit design, output of dry signal controller and application of controllable silicon, the utility model realizes a high current starting permanent magnet vacuum high voltage switch, and has no contactor contact and no power transmission, which ensures the safety and reliability of the control circuit, and has low cost.
【技术实现步骤摘要】
永磁真空高压开关的二次控制电路及其永磁真空高压开关
本技术具体涉及一种永磁真空高压开关的二次控制电路及其永磁真空高压开关。
技术介绍
随着经济技术的发展,电能已经成为了人们生产和生活中必不可少的二次能源,给人们的生产和生活带来了无尽的便利。近年来出现了永磁真空高压开关。永磁真空高压开关具有结构简单,零部件少,可靠性高且使用寿命长等特点,已经广泛应用于电力系统。目前,永磁真空高压开关的二次控制电路正朝着多样化方向发展。众多的研究促进了永磁真空高压开关二次控制技术的不断提高。但是,目前的永磁真空高压开关的二次控制回路虽然比较先进,但是其制造工艺和装配工艺均比较复杂。目前,永磁真空高压开关的二次控制回路如图1所示:图中ZK为断路器,CZ1和CZ2为电源触点;QF为与永磁真空高压开关的动作机构联动的开关触点,其动作过程为:永磁真空高压开关的动作机构闭合(即永磁真空高压开关合闸),则QF断开,永磁真空高压开关的动作机构断开(即永磁真空高压开关断开),则QF闭合;HC为永磁真空高压开关的合闸接触器线圈,HC1和HC2为永磁真空高压开关的合闸接触器触点;HQ为永磁真空高压开关的合闸线圈。当永磁真空高压开关断开时,此时QF闭合,且CZ1和CZ2未上电;此时,当闭合ZK时,此时CZ1和CZ2与电源信号+HM、-HM连接,此时合闸接触器线圈HC上电,此时合闸接触器触点HC1和HC2均闭合,此时合闸线圈HQ上电,此时永磁真空高压开关的动作机构闭合,永磁真空高压开关合闸;在永磁真空高压开关合闸的同时,QF断开,此时HC断电,HC1和HC2断开,合闸线圈断电,从而完成了永磁真空高压 ...
【技术保护点】
1.一种永磁真空高压开关的二次控制电路,包括与永磁真空高压开关的动作机构联动的开关触点,其特征在于还包括合闸开关、干信号控制器和可控硅;合闸开关并联在干信号控制器的两端;干信号控制器的输出引脚连接可控硅的控制端;可控硅的P1端连接电源信号的一极,可控硅的P2端连接电源信号的另一极;可控硅的N1端和N2端连接合闸线圈;可控硅的P1端、开关触点、干信号控制器和可控硅的N2端串接。
【技术特征摘要】
1.一种永磁真空高压开关的二次控制电路,包括与永磁真空高压开关的动作机构联动的开关触点,其特征在于还包括合闸开关、干信号控制器和可控硅;合闸开关并联在干信号控制器的两端;干信号控制器的输出引脚连接可控硅的控制端;可控硅的P1端连接电源信号的一极,可控硅的P2端连接电源信号的另一极;可控...
【专利技术属性】
技术研发人员:付凯兴,张永起,
申请(专利权)人:威胜电气有限公司,
类型:新型
国别省市:湖南,43
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。