Answer Posted / muhammad naveed

Line reactors can protect motors and reduce power line distortion from VFDs.

What is the effect on in Zone and out zone fault if Phase side CT is Vk/2<30 mA and Neutral side is CT is Vk/4<30 mA for Transformer REF protection

3866

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what are symmetrical and non symmetrical components in electrical installation.

2131

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What are differences between Voltage, EMF & Potential difference ?

2069

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which fault is severe and why?between lll fault and lllg fault which fault is severe and y?

2550

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Trafo ratio is 11kV/6.6kv,Vector group is YND11. What will be the effect if secondary is used for earthed system.

3855

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in electrical control panel. how can i choose the cable rating. (example - 11kw motor, 18-25A mpcb}

2915

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how does directional relay work incase of ac ?

1565

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is there any phase difference occurs while primary and secondary side mutual induction occurs?

2064

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can any tell me why slope 40% and 80% is calculated in differential protection?

1940

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i had aplied Hindustan Petroleum corporation limited for the post of maintenance technician -Electrical,i want model questions,if anybody have please send it or please advice?

1923

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WHAT IS START TO INDUCTION MOTER IN STAR TO DELTA OF >5HP ?

1914

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What are the main significances of root locus?

1279

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How to determine the breaking capacity such as break down current and break down voltage for VCB and CT's.

2256

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We have 5 Distribution sections with variable loads&We have 3 Gensets(500kva,380kva&250kva) our total load is between 400kva to 600kva. so how could we connect 3gensets.

1916

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While testing a ZCT what parameters have to check or measure?

2453

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