Answer Posted / k.prakashchandra

3. IDMTL is a current relay and hence can be used for both over current and earth fault current . It is an over current relay.

I HAVE A INCOMING 100A MCCB TPN 25KA, CABLE LENGHT OF 80M 70MM CABLE SIZE FROM MAIN SUBBOARD TO NEW DB.BASE ON THE FAULT LEVEL SETTING OF 45KA.I WOULD LIKE TO FIND OUT 25KA ENOUGH KA. APPRECIATE IF SOMEBODY CAN ASSIST ME WITH FORMULA FOR THIS. FRM: JEFF

4084

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how you taken aotitude test

2524

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How can you calculate the size of the down conductor cable for the lightning protection system. Is 70mm2 cable can replace 95mm 2 bare copper cable when the copper tape size is 25Wx3 thk mm.

5438

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i am going to correct power factor of 1600kw induction motor,when i calculate capacitance of capacitor it is three time more in star connection than delta. if motor is star connected which connection i shall adopt for capacitors and reason for adopt this connection

1892

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What is the Minimum winding resistance of motors ( small & big)? referance range

2367

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what are the disadvantages in GIS over AIS

2483

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What are the advantages of autotransformer?

1254

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Describe the colour rendering properties of i) tungsten filament lamps ii) tubular fluorescent lamp

3189

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If we impress a dc voltage of 230 V on an unloaded 230 V, 50 Hz transformer it wi A give high secondary voltage B burn out C give secondary voltage as per K D none of these

2065

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new 90kw motor installed so how I purchased cable ,fuse,etc please give me technic for cable selected why always capacitor delta connection

1873

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which type of questions asking for solar companies?

1629

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advantage of motor design on higher power factor . normally motors are designed for .8 power factor. what is advantage of designing at .88 power factor

1839

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what happen ehen synchronisation is done at below rated speed

2190

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Explain the advantages and disadvantages of hydropower plant?

1178

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difference between servo motor and synchronous motor

2376

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