In short we may change the motors operation and control by doing some modification in the above simple electrical interlocking control circuit diagram. Full voltage reversing 3 phase motors.
Three Phase Motor Contactor Interlock Action For Switching
Contactor interlock wiring diagram. Contactor breakers limit switch no static control standard elementary diagram symbols. A technique called interlocking is used to prevent the contactors from being energized simultaneously or closing together and causing a short circuit. The electrical interlock is inherent in the wiring scheme. Many large pieces of equipment are powered directly from high voltage lines. These lines far exceed the 120 volts ac standard in most homes. It uses two contactors two auxiliary contact blocks an overload relay a mechanical interlock two normally open start pushbuttons a normally closed stop pushbutton and a power supply with a fuse.
For example if we need that motor 1 should stop when motor 3 starts to run then we may use a normally close nc link of m3 in line 1. An interlock is a feature that makes the. Wiring diagram since wiring connections and terminal markings are shown this type of diagram is helpful when wiring the. In the bygone days when we used jic standards you were required to have both mechanical and electrical interlocks on reversing 2 speed and wye delta starters this is no. That diagram is using the older standard jic symbology and those dotted lines depict a machanical interlock. This diagram is for 3 phase reversing motor control with 24 vdc control voltage.
240 volts ac and 480 volts ac are commonly used for these large pieces of. How to wire a contactor. Interlock connection fixed adjustable fixed res heating element h adjustable by fixed taps res.
Gallery of Contactor Interlock Wiring Diagram
