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
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