1、用中间继电器作为缺相保护装置的线路
2、脚踏开关踩气缸动作实物彩图接线
3、浮球开关的工作原理讲解
4、常用元件代号及图形符号的画法
5、电工必学的7个基础程序-自锁-多点启停-点动加联动运行
6、电工必学的7个基础程序-延时接通、延时断开-交替输出
7、电工必学的7个基础程序-连锁和互锁-闪烁电路
8、220V电机的倒顺开关实物彩图接线方法
9、变频器电路的接线方法
10、时间继电器的接线方法-实物彩图
11、以太网跟PLC通信电路实物图
12、正反转电路实物彩图接线方法
13、互感器与电表的实物彩图接线方法
14、自制温控风扇电路实物彩图方法
15、星三角380V主电路实物彩图接线方法
16、电接点压力表实物彩图接线电路图
17、接触器实现单开双控的实物彩图接线方法
18、空气能热水循环系统电路
19、变频器接线实物彩图电路展示
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孙万莉44651、主电路与控制电路如图1,(1)分析并说明电路功能;(2)说明什么是自锁、什么是互锁. -
侯农狮17811728235 ______ 这是控制电机正反转电路.左边是主电路,右边是控制电路.SBO是停止按钮.SB1与SB2是二个正反转按钮、 当SB1按下时,电流通过SB1,使得KM1继电器得电,KM1常开触头闭合,常闭触头断开.这时,KM2继电器上方的KM1常闭触头...
孙万莉4465接触器线圈220伏正反转加互锁接线图 -
侯农狮17811728235 ______ 电机正反转的是自锁,若果是互锁,至少需要两个电机,电机正反转自锁电路图:
孙万莉4465带有接触器的自锁保护控制电路? -
侯农狮17811728235 ______ .............................常见自锁电路有哪些 如何实现自锁 工程师谭军 本文主要是关于自锁电路的相关介绍,并着重对自锁电路的原理及其应用进行了详尽的阐述. 自锁电路 自锁电路是电路中的一种,一旦按下开关,电路就能够自动保持持续通...
孙万莉4465什么是电动机的自锁和互锁 -
侯农狮17811728235 ______ 如要电机连续运转.就要在点动按钮两端并联1对接触器动合辅助触点.这种用接触器辅助触点使接触器线圈持续通电流的线路环节称自锁.(也称自锁线路、自锁作用、自锁功能、自锁环节等) 在电动机正反转控制线路中.为避免2个接触器主触头同时接通.而引起相间电源短路. 要避免2个接触器线圈同时通电.将1个接触器动断辅助触头串接在另1个接触器的线圈电路中. 2个接触器线路都要如此接法.使2个接触器主触头不可能同时接通.从而避免上述短路现象. 接触器的2个动断辅助触头称为互锁(联锁)触头.有关电路环节称互锁电路.
孙万莉4465正反转按钮连锁互锁电路工艺步骤 -
侯农狮17811728235 ______ 在电路中采用可靠的双重互锁,下边为采用按钮和接触器双重互锁的电动机正、反两方向运行的控制电路. 分析: 一、正向启动: 1、合上空气开关QF接通三相电源636f7079e79fa5e9819331333330326134 2、按下正向启动按钮SB2,KM1通电...
孙万莉4465自锁互锁电路详细讲述? -
侯农狮17811728235 ______ 自锁就是动作后保持原状志如接触器触点和起动按钮并联.互锁就是A动作后B不能动作,B动作后A不能动作如正反转电路,
孙万莉4465什么是闭锁型继电器? -
侯农狮17811728235 ______ 闭锁就是指的“自锁”,是在继电器通电动作以后,自动锁定其状态,保持回路的接通,即使此时断开控制电流也不会改变其状态.也就是说,当通电吸和后,断开控制电流,仍然继续保持接通状态,除非按下解锁按钮. 闭锁型继电器:可分为...
孙万莉4465接触器互锁电路图的具体分析 如接触器是怎样互锁的 -
侯农狮17811728235 ______ A接触器的常闭辅助触点接到B接触器的控制线圈回路中,一旦A接触器线圈得电吸合,其常闭辅助触点就会断开,从而切断B接触器的控制回路,保证B接触器在A接触器处于吸合状态时,不会吸合. 同样的,B接触器的辅助常闭触点,也同样接在A接触器线圈的控制回路中,保证A接触器在B接触器处于吸合状态时,不会吸合. 这就是互锁
孙万莉4465自锁电路的过流保护自锁电路 -
侯农狮17811728235 ______ 在电力电子器件驱动电路中,当做器件过流保护时需要加入自锁电路,防止进一步烧坏功率器件.如果驱动IC没有自锁功能就需要加入自锁电路.常用的最简单的自锁电路可以用两个三极管来实现,也已经被广泛使用. 参数C2的作用是维持VT2的继续导通,防止误动作,在上述电路的R1并联一按钮就可以实现人工复位.
孙万莉4465那位高手能给我解释下这个电路图...关于自锁、互锁.............(解释的详细点) -
侯农狮17811728235 ______ 当旋钮开关(没有代号,我假定它为:SA)SA闭合,KM得电,KM所接负载运行,同时,KT1得电并开始计时;当KT1计时的时间到,KT1的延时闭合触点闭合,KA继电器得电,KA继电器自锁保持接通;其常闭触点打开,切断KM供电,负载停止运行.同时,KT2延时继电器也得电,并开始计时,当KT2的计时的时间到,KT2延时打开触点释放,KA失电,KA自保解除,也切断了KT2的供电,KA常闭触点复位,负载重新开始运行,然后进行上述循环. 这是一个可调的,运行/停止/运行/停止的循环电路.
