Page 96 - CITS - Electrician - Trade Practical
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ELECTRICIAN - CITS











































              Tabular column:


                      Type of load             Voltage    Current (I)   Power factor (cos j)     PF observation
                                                 (V)
            Resistive                         230 V      1 Amp         1                     1 (Unity) Ideal


            Inductive                         230 V      1.5 Amp       0.5                   0.5 lagging Poor



            Inductive + capacitive            230 V      1.2 Amp       0.8                   0.8 lagging
            (1 capacitor parallel with load)

            Inductive + capacitive            230 V      1 Amp         1                     1 (Unity) Ideal
            (2 capacitors parallel with load)

            Inductive + capacitive            230 V      1.3 Amp       0.8                   0.8 leading
            (4 capacitors parallel with load)                                                Over excited


           Safety precautions:
           1  Do not make wrong and loose connections.
           2  Do not connect higher value and more No. of capacitors which causes high current in the circuit.

           3  Do not touch the capacitor terminals without discharging.
           4  Take the meter reading correctly.







                                                           79

                                    CITS : Power - Electrician & Wireman - Exercise 39
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