Answer / prakash

frequancy of 2 nd hormonics is to be selected for measuring earth resistivity

why dc motor runs slowly when dc supply is given?

2 Answers   L&T,

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L.A. (Lightening Arrester) is located at a place from where transmission line enters the transmitting substation. So L.A. (Lightening Arrester) is the first equipments which has to encounter with lightening, high voltage surges and switching surges. It has to absorb energy of lightening, high voltage surges, and switching surges. L.A. (Lightening Arrester) is made up of layers of semiconductors. If these layers can not tolerate energy released by lightening, high voltage surges, and switching surges the L.A. (Lightening Arrester) blasts.

0 Answers  

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what is the difference between KVAR & KVA ?

11 Answers   Bombay Rayon Fashions, Hyundai, Pricol,

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Differene between KVA and KW.

6 Answers   Bharti,

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How CT is connected to measure current by changing plug setting , ratio is 300 - 150 / 5 A ?

1 Answers   Ajanta Pharma, Bhel, Cosmo Films, Suzlon,

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what is hunting?

2 Answers  

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How magnetic balance test of single phase transformer is done,Especially in ESP transformer rectifier set.

2 Answers   Bhel,

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As per is what is distance between two chemical type earth pit

2 Answers   DAR, Dr Reddys,

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explain the operating principles of CVT & RVT

2 Answers  

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why we do not get the electric shock at end of returning water of water cooled cable

1 Answers  

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why Y CONNECTION IS BETTER INTERMS OF EFFICIENCY AND P.F FOR A LAOD LESS THAN 40% AND WHY AFTER DELTA IS BETTER FOR > 40%

0 Answers  

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What are the relays in ACB and VCB

0 Answers   ABB, Bhel,

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