Answer Posted / venki

Distance protection relay is mostly used to detect the fault which occurred at a specified distance normally these are used in 66 kV and above Transmission levels. the total line is divided in to some zone for a specified distance and those zones are named as A,B,C and etc., if a fault is occurred it will indicate the zone where it is occurred.

what are carbondioxide and dcp used in fire extinguishers

2056

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What is time response of the control system?

1097

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With a phasor diagram show the effect of increasing the field current of a generator supplying a constant real power and connected to a grid system.

1983

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Would you recommend to replace all oil filled cables with xlpe cable for hv transmission with the current technolgy for xlpe cable?

1495

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What is vaccum currcuit breaker.define with cause and where be use it device?

1122

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What is the type of earth fault protection used in battery? explain.

2315

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10 tube light connect in mcb breaker.one tube light is fault.so breaker is tribe.how fault is rectified.(using 3wire phase,earth,neutral)

2681

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What is genrally the % Impedance of a Dg set? How can we calculate Earthing conductor size for a DG set?

4038

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Importance of fault current in power transformers and how to monitor the same? How is it different from winding temperature?

1844

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how we can calculate the efficiency of a diesel generator ?

1704

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any one please tell taht what type questions will be asked in BHEL interview, i am having interview on 24th Dec, please send this to mail pradeepsistam@yahoo.co.in

2001

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what is the concept of directional power?

2021

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if we install two earth pits with a clear space of 5m without any interconnection,by checking the digital multimeter will it show continuity between earth pits? If so what would be the approx. value

1938

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what is the practical application of full adder circuit?

1860

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what is static frequency converter?what is the function...of sfc...?

2241

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