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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辕东枝3197继电器自锁跟三极管自锁电路的区别 -
窦怕利17077008333 ______ 1》继电器自锁是通过常开触点串在线圈与电源之间再与按钮并联,一旦按钮按下,继电器通电吸合,常开触点被吸合取代按钮导通,使继电器保持通电吸合状态. 2》三极管集电极与继电器线圈串联,是利用三极管的开关特性使继电器通电吸...
辕东枝3197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)
窦怕利17077008333 ______ 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.
辕东枝3197有关继电器的简单电路图,懂的进! -
窦怕利17077008333 ______ (1)S应该是一个单刀双掷开关,打到S方框的左边则继电器R通电,与负载LOAD同一线路的常闭R就断开,负载LOAD停止;打到S方框的右侧时,断电器R断电,与负载LOAD同一线路的常闭R就导通,负载LOAD运行.(2)同理可得 ,左图中开关PB1按下时,继电器R通DC24V,磁铁吸合,导致右图常开触点R接通,负载LOAD通上AC交流电工作,实现了用DC转AC的功能
辕东枝3197求继电器互锁电路?
窦怕利17077008333 ______ 继电器互锁电路:现有两个可通过24V直流电压的常开接近开关K1、K2和一个按钮开关,外界物A和B,A、B为220v.按下按钮开关触点接通A动作到达K1后停止放开按钮开关,B动作到达K2时停止动作,继电器互锁电路: http://www.schneider-electric.cn/sites/china/cn/products-services/automation-control/products-offer/function-presentation.page?p_function_id=5008
辕东枝3197自锁互锁电路详细讲述? -
窦怕利17077008333 ______ 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,
辕东枝3197如和实现继电器的自锁和互锁? -
窦怕利17077008333 ______ 实现自锁和互锁都要用继电器的辅助触点来完成的,首先你要明白什么叫做自锁,什么叫做互锁,自锁就是用自己的触头将本接触器线圈回路的按钮开关给短接掉,在按钮开关松开以后使得线圈回路不断开,这就是自锁.这样你就可以利用继电...
辕东枝31971、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. -
窦怕利17077008333 ______ 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...
辕东枝3197请问 用一个接触器和一个热继电器怎么组成一个自锁电路,有图的麻烦哈. -
窦怕利17077008333 ______ 热继电器个接触器是串联关系,要自锁的话,取控制电源,接进接触器的一个常开端子上再并进接触器线圈端的火线上.就可实现自锁,当然,你控制线还得串上一个常开一个常闭,俩按钮,做启动停止用.
辕东枝3197自锁电路图 - 关于继电器的自锁电路!1.当继电器只有一个常开和常闭触头时,怎样
窦怕利17077008333 ______ 继电器常开触头与用来起动的常开按纽并联,并联块再与继电器线圈串联,继电器常闭触头多用于互锁.
辕东枝3197继电器互锁与自锁问题
窦怕利17077008333 ______ 互锁: 是两个继电器之间,假设A继电器动作,B继电器就要停止,B继电器动作,A继电器就不能动作.自锁: 是一个继电器之间,继电器的动作靠外部信号启动,但当外部信号消失后,继电器线圈通过继电器自身的辅助触点保持动作,就叫自锁.
