Answer Posted / abiodun ogunnaike

The purpose of earth electrode is to induce a return energy or current through external body via the ground. this to ensure no damage occur to the appliances during high current surge or short circuit reaction.

what is the difference between switch yard to residential area.and how much required it.

1701

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1.why are not using acb 33kv ht side? is there any problem 2.what is difference between acb,vcb,sf6 breackers? 3.what is the function of invertor and convertor in ups?

2101

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Explain the function and difference of Restricted earth fault, simple earth fault and sensitive earth fault with connection diagram.

2602

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advantage of motor design on higher power factor . normally motors are designed for .8 power factor. what is advantage of designing at .88 power factor

1743

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How will polarity test of Dy5 Transformer ?

2208

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As we use capacitior bank in 3ph ckt for improvement of PF, why not we use capacitor in single phase domestric use, at our house their are many inductive equipments,like fan,mixer,tube choke,air conditioner they also draw PF... by using capacitor can they improve PF. if yes--what are advantage and how to connect a capactor in single ph,and which type of capacitor if no- what are disadvantages.

1805

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how indusrial diesel generator work

1857

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What are the different types of dams?

1153

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How can we measure the residual voltage in dc machines?

1769

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why use phase displacement in transformer.and effect of phase displacement on transformer

2810

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What is hipot test procedure?

1406

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What would cause a 240v choke that should give 110v out on a 16w lamp to gradually increase to 160v?

2114

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What are factors to be considered while we selecting the Core Balance Current Transformer for Earth fault protection

1819

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CAN U PLEASE TELL ME SOME G.D TOPICS FOR APGENCO INTERVIEW&G.D

2352

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boiler is running in rankine cycle and deisel generator is....?

1991

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