交流接触器安装接线故障分析及处理（Fault analysis and treatment of AC contactor installation and connection）.docVIP

交流接触器安装接线故障分析及处理（Fault analysis and treatment of AC contactor installation and connection） AC contactor installation wiring (DELIXI) Main circuit incoming line: 1L1, 3L2, 5L3 Main circuit outlet: 2T1, 4T2, 6T3 Normally open auxiliary contact line is: 13, 23,33,43.. Normally open auxiliary contact outlet end is: 14, 24,34,44.. The end of the normally closed auxiliary contact line is: 11, 21,31,41... The terminal ends of normally closed auxiliary contacts are: 12, 22,32,42... The terminals of the coil are: A1 and A2 The relay has basically, 13,14 power supply, 13 +24V, 14 connected with the cathode, can be reversed, but the indicator light does not shine, 1,5,9; is a group, one often open a closed, 4,8,12 is a group often open a closed, if it is fourteen feet three. Common troubles and solutions in relay contactor control circuit Relay is an external input signal according to the quantity, such as electrical (voltage, current) or non electrical quantity (heat, time, speed etc.) change to connect or disconnect the control circuit to complete the control task or the protection of electrical appliances, it has three basic parts, namely the intermediate mechanism and executing mechanism and measuring mechanism this paper expounds the methods of maintenance, and they produce fault. Inspection and repair of 1. sensing mechanism For electromagnetic (voltage, current, intermediate) relays, the sensing mechanism is an electromagnetic system. The faults of the electromagnetic system mainly focus on the coil and the stator core. (1) coil fault repair; The coil fault is usually damaged by the coil insulation; the inter turn short circuit or earthing is formed by mechanical damage; because the power supply voltage is too low, the contact between the dynamic and static iron core is not tight, the coil current is too large, and the coil is too hot to be burned. It should be repaired, rewinding coil. If the coil is energized, the armature does not pull in. It may be that the coil lea