Page 334 - Electronic Mechanic - TP - Volume - 2

ELECTRONICS MECHANIC - CITS

12 Test and Verify:

• Test the motor at different speeds to verify the performance of the SCR chopper
13 Safety Precautions:
• Always be cautious when working with electrical circuits and motors. Avoid short circuits and ensure proper
insulation and grounding.
• Do not operate the motor beyond its rated voltage and current limits to prevent overheating and potential
damage.
14 Shutdown:

• After testing, power off the system and disconnect any power sources.
• Ensure all components are safely disconnected and stored.
Results:
The primary result of the experiment is the ability to control the speed of the DC shunt motor. By adjusting the
firing angle of the SCR, you can vary the average voltage applied to the motor, thereby regulating its speed. You
should observe the motor speeding up or slowing down in response to changes in the firing angle.

317
CITS : E & H - Electronics Mechanic - Exercise 222