What do you mean by cold shinkable cable joint.How it is done.

0 Answers  

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what is PWM in IGBT and how it works for drive.?

0 Answers   BRG,

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what is bus PT ?

4 Answers  

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Why CT secondary should not be kept open?

7 Answers   Anna University,

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My system is 22kv/3.3kv transformer. client is asking to use NGR, but as we have dedicated Neutral Earthing systems which has a value less than 1 Ohm. So i want solid comparision. Why i should not use NGR as my system is already protected.Can any one help me to get out of this.how should i reply on basis of some great comparision and calculations. Please help

2 Answers   Ariel,

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Why in medium voltage system(3.3kv to 33kv, neutral is earthed with either resistance, reactance or neutral grounding resistance?

4 Answers   Essar,

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A three phase load, around 4 km away from the 11/0.433KV distribution transformer (Neutral of Transformer is solidily earthed) and consisting of mainly very costly and sensitive electronic equipments is giving trouble due to high voltage difference between neutral and body earth. Whether this problem can addressed by connecting neutral at the load point solidly to earth?

3 Answers  

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What is the average hieght of a electrical tower? what are the factors that are taken into consideration for deciding its hieght other than voltage level?

1 Answers  

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what is transformer

63 Answers   ABB, Advance Power Controls, CERC, Electrical, Electrical Supervisor Competency Certificate, ETA, IBM, Jindal,

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Why motor initial starting current is high?

9 Answers   Pennar,

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what are the advantages and disadvantages of oil filled cables over XLPE cables

3 Answers   Areva, AUVA,

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How to detect voltage vector shifting in interconnection protection.

0 Answers  

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