what is the diff. b/w restricted earth fault relay & standby earthfault relay and where they are used?

4 Answers   KSK Energy, Reliance,

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What is time invariant system?

0 Answers  

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

0 Answers   Indian Railways,

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what is cro

3 Answers   HCL,

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what is the string efficiency

1 Answers  

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how give earthing conection to household equipment?

0 Answers  

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how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING) I O (current operating)?

0 Answers  

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Why we are using air gap magnetic condutors

2 Answers   Ford, IOCL,

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how to calculate vfd o/p voltage by frequency

0 Answers   HCL, Orchid,

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why we used ZNO in Lightning arrester.

0 Answers  

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What is a differential amplifier? Also, explain cmrr.

0 Answers  

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H.t motor 6600 volt to same motor lt supply 440volt supply applyed to h.t motor to effect....

0 Answers   Essar,

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