Answer / k.prakashchandra

The relay measures rate of drop in frequency ,which is due sudden increase in load or decrease in generating capacity . When df/dt exceeds the set value ,the relay closes the trip circuit.

How can we measure MVAR of a 3 phase transformer.....???

1 Answers   JLL, UPPCL,

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what is difference between armoured cable and un armoured cable

2 Answers  

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WHATS THE NEED OF CT INPUTFOR AN VAPM TYPE METERING PT FUSE FAILURE RELAY

1 Answers  

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suppose we using 3 phase motor of 440 v means what range of C.T. is require for measuring current ?

9 Answers  

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what is meant by dielectirc medium? what is the dielectirc value of air and water???

2 Answers   ISRO,

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How to calculate the electrical load for a standard telecom BTS shelter and choose the DG set capacity for the same load?

0 Answers   Quippo,

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Why PT is fitted in incomer panel.....?

1 Answers  

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what is the common earth

0 Answers  

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If a 1.5V,3W torch light bulb is connected in series with a 15HP/11.19KW,230V single phase motor and the combination is connected against a 230V supply and switched on than what will happen keeping all other parameters as it should be A)the bulb will glow normally B)the bulb will not glow C)the bulb will glow with extra brightness D)the bulb will burn out and if a fuse is connected to the above circuit will something happen to the fuse and what about the single phase motor will it be affected? Please explain with derivation

4 Answers  

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what is the safty of poly phase tranformer?

0 Answers   Adani,

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plz explain the snubber circuit unit

1 Answers  

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how to calculate load if i have three phase & single phase connection from power transformer( in term of kw & kva).can i take single phase load/3 for total kw calculation

1 Answers  

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