Page 67 - CITS - Electrician - Trade Practical
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ELECTRICIAN - CITS
TASK 3 : Vary the coil turns and supply voltage (AC)
1 Follow the step 1 & 2 and prepare the electromagnet of 200 turns.
2 Connect the electromagnet to the low voltage AC supply through an auto transformer.
3 Check & observe the magnetic property of Electromagnet by touching with metal object.
4 Check the polarity of Electromagnet with magnetic compass needle.
5 Switch OFF the supply and disconnect the electromagnet.
Safety precautions
• Do not scrape the insulation of conductor while making a coil.
* Do not overlap the conductor turns, wind the conductor uniformly.
* Do not apply excess voltage to electromagnet.
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CITS : Power - Electrician & Wireman - Exercise 26
