Answer / sudipt jena

Partial discharges often occurs near the entering of cable into a panel or electrical machines.Because at this position, the cable is stiffly bended which results stress in the insulation i.e. XLPE. And as the time passes insulation degrades leading to passing of some electrical charges from conductor to the earthed parts of the panel or machine. A humming sound is also created and is called partial discharge.

I have a 3 phase 600 volt prim. feed and a 120/208 sec. Isolateing tranformer .We are using this system for safety against shock . What is the proper grounding ?? Does the common on sec. get earth ground ???

1 Answers  

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Earth leakage relay basic knowledge principle

0 Answers   Radiant,

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what is the difference betweem star connected motor & delta connected motor?

0 Answers  

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NOW A DAYS THE POWER SUPPLY IS VERY LOW.SO THE FLURESCENT TUBE LIGHTS ARE VERY DIM.IS THERE IS ANY WAY TO INCREASE ITS BRIGHTNESS?FOR EXAMPLE ANY CONVERTER,CONDENSER?

1 Answers   Bhel,

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why using in cable mm square which is mm & which is square why using mm & square.

1 Answers   Airtel,

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What kind of battries are generaly used with Disel Generator?

1 Answers   Exide,

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what is the principle of tubelight ??? what is the function of starter and choke ???

1 Answers  

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What is AVR? Explain the function AVR?

11 Answers   HSL, NHPC,

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why the star delta motors burn out frequently

1 Answers  

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Due to ferranti effect which power increases at the receiving end?active power or reactive power?

5 Answers  

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I would like to know that the fault curretn at base load and at 10% generation will be same? Fault level of BUS remain same with different generation?

0 Answers  

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why capacitor bank is not used in generator power

7 Answers   Caterpillar,

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