How to Connect DC Series Motor to Power Source

There are basically three types of DC Motors based upon the connections of field and armature winding. First is DC Series Motor, second is DC Shunt motor and third is DC Compound motor. DC Motors require to have DC power supply. But providing high voltage power supply directly from the batteries would not be possible in number of cases. So a rectifier circuit is used, which converts the AC power into DC. And then this DC power is given to the DC Motor. 

We had done the connections for powering the DC Series motor.

We had 220V DC Series Motor rated 4.2 Amps. 



This motor have 4 wires, 2 of the wires are for Armature winding and remaining 2 are for the field winding. Lets see the wiring diagram for the this motor.

The connections are done as per the circuit diagram as shown above. We first check the continuity of the same type of wires using multimeter. Then make common connection within one of the armature wire terminal with one of the field winding terminal. Remaining one terminal each of the armature and field are then connected to the power supply to complete the circuit. Setup for this is shown in the following image.


Here the important aspect of the circuit is the variable voltage Dimmer or Auto Transformer. This Dimmer controls the voltage drop across the two ends of the Transformer. Raw Power is of 440 V and our rated voltage for the DC motor is 220V so by adjusting the regulator on the Dimmer voltage is regulated. Then next stage is to convert the AC power into DC. For this purpose a bridge arrangement of  diodes is created. This arrangement allows electricity to flow in single direction only so the Direct Current is generated. You can learn more about how to convert AC into DC power from The Engineering Mindset YouTube channel; Link: https://www.youtube.com/watch?v=mVzTbqcYdSg. Then the ammeter is connected in series with the motor to measure the current passing through the circuit. 

Please refer to the following video of setup to get the understanding of the wiring.


Please feel free to comment in the comment box in case of any query or suggestions. Thank You very much for reading my blog. 


 


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