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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卞炒维51001、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. -
傅盆馨19298435580 ______ 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...
卞炒维5100什么叫自锁与互锁?各如何实现? -
傅盆馨19298435580 ______ 电路中的自锁是指:按下启动按钮闭合后又断开,电路中得电的线圈不掉电还继续工作,即用该线圈的辅助常开节点并联在启动按钮两端. 电路中的互锁是指:两个不同的节点各自串联在对应在电路...
卞炒维5100自锁/互锁电路图 -
傅盆馨19298435580 ______ 图不好传 还是给你描述一下吧 控制回路要先将分别控制正反转停止的两个按钮串联接好,随后将两个分别控制正反转启动的两个按钮并联接好后与停钮的一端接好,停钮的另一端准备与电源连接,然后再把分别正转反转主接触器的常开辅助接...
卞炒维5100什么叫自锁,互锁?如何实现?电工基础 电工论坛 -
傅盆馨19298435580 ______ 依靠接触器自身辅助常开触点使其线圈保持通电的作用称为“自锁”.实现自锁的方法是将接触器自身辅助常开触点与启动按钮并联. 所谓“互锁”是指当一个接触器工作时,另一个接触器不能工作.在控制线路中可以利用两个接触器的常闭触点实现相互控制.
卞炒维5100设备互相联锁电路原理图 -
傅盆馨19298435580 ______ KM2没有动作的时候,KM1没办法启动,按下S1,因为KM2的常开触点导致KM1线圈不导通. 只有先按下S2的时候,KM2线圈得电动作,同时自锁,M2电机启动;再按下S1,KM1线圈动作,KM1自锁,M1电机启动 按下S3开关的时候,两台电机都停止
卞炒维5100交流接触器自锁的原理是什么 -
傅盆馨19298435580 ______ 工作原理: 主电路从三相电源端点L1,L2,L3引来,经电源开关QS,熔断器FU和接触器KM的三对主触点KM到电动机M.控制电路(或称辅助电路)由按钮SB和接触器线圈KM组成. 合上电源开关QS,按启动按钮SB1接触器KM的线圈通电,在...
卞炒维5100电路中“自锁”、“互锁”的含义及分别描述其作用 -
傅盆馨19298435580 ______[答案] 自锁也叫自保,起动按钮松开后保持接触器线圈通电吸合,一般都接在动作接触器的辅助常开触头上,与起动按钮并联.互锁,为防止正反接触器同时动作而使相线短路.将正(反)转接触器的供电回路串联接在反(正)转接触器的辅助常闭触点上.
卞炒维5100控制电路中什么叫“自锁”“互锁”?各自的作用? -
傅盆馨19298435580 ______[答案] 电路中的自锁是指:按下启动按钮闭合后又断开,电路中得电的线圈不掉电还继续工作,即用该线圈的辅助常开节点并联在启动按钮两端. 电路中的互锁是指:两个不同的节点各自串联在对应在电路中互相制约,当线圈1的节点动作时,线圈2不动作...
卞炒维5100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) -
傅盆馨19298435580 ______ 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.
卞炒维5100谁能帮我解释一下 电路中 点动 自锁 互锁 的意思
傅盆馨19298435580 ______ 自锁:通过自身结构,保持动作后的状态,并维持不变;互锁:将相互关联的电器动作捆绑,限制互锁的电器不能同时动作或者即时同时动作;点动:没有自锁,按下按钮电机运行,放手时电机停止.
