Magnetic contactor diagram with timer. A path of very low reluctance for the magnetic flux is provided for the movable armature and also the switch point contacts. To limit the starting current surge large induction motors are started at reduced voltage and then have full supply voltage reconnected. There are 3 magnetic contactors used in the power circuit the main magnetic contactor is connected directly to the primary coil terminal of the motor u1 v1 w1 while the star and delta magnetic contactors are connected to the secondary coil terminal of the. Installation manual type ma general purpose converter without controls type ma r converter with integral fused disconnect switch type ma a aw ai converter with remote start magnetic controls.
Sharing the knowledge about electric motorcircuit diagramcablewireformulastheorymotor controlhvacvideoearthing many more. The same basic procedure is used to develop a wiring diagram from the schematic as was followed in the previous chapters. It is an electro magnetic relay with a wire coil surrounded by an iron core. Developing a wiring diagram.