Answer / k.prakashchandra

Iron losses may be taken as 2 KW i.e. 2 units per hour . For max efficiency Copper losses are equal to iron losses

how to calculate the cable current ratingand and how much of distance the rating will be ok will the distance is incresed what the action we take

0 Answers  

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with out name plate details , how to find the metering ct and protection ct.?pls brif explaination about that.

3 Answers   APNPDCL,

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What is boucholz relay and the significance of it in to the trformer?

0 Answers  

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why the transformer ratings in kva

8 Answers   NTPC,

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explain why reduced voltage starters are required for large tree phase inudction motor

2 Answers  

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what is the surge arrestor?how it operates?what is the range for it?

4 Answers  

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Is it required to lay GI wires along with GI/MS conduits from one point to another point though separate earthing cable is conncted from DB to Socket?

0 Answers  

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I have 1500/1A CT If i connect this CT in 6.6KV bus bar means what will be the voltage present in CT?

0 Answers   KCL, MPC,

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Why we get neutral from EB department, if not what will happen if we use earth instead of neutral? what is the result at the time of monsoon or rain with thunder and lighting ?

1 Answers  

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Define closed loop control system.

0 Answers  

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size of condotory fron voltage level

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I find that underground strip-armoiured,4core,LT PVC cables in an earthed power distribution sytem are occasionly found in charred condition-with no trace of it except ash. Is this because of no proper earth connection/continuity (giving rising to high armour resistance)in the joint enroute or because of insufficient capability (again due to high armour resistance)of cable-armour to carry fault current or due to neglected /unprotected overloading of the cable or due to high armour currents caused by power thefts where only phase(s) are unauthorisely tapped & at the point of poer consumption earth terminal is established by burring underground a not so good earthing rod (or using an underground water pipe for the purpose)

1 Answers  

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