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.

In power plant synchronizing time (synchroniging meter should be 12'o clock position only. why not 6'o clock position not possible.

1 Answers   ITC Infotech,

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why do motors burn out? I understand why adding parallel loads to a power source means more current moves through the circuit, and can destroy circuit elements by overheating. What about when you have a vaccuum cleaner intake flush against a floor, a room fan sitting directly against a wall, or a power drill trying to drill through something too hard?

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PRV (Pressure relief valve) Trip with oil splash outside power transformers

1 Answers   Khan,

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What is the reason for low voltage in houses?

19 Answers   Maytas,

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12 Answers  

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OHMS Law is only applicable for ac or dc or both circuiT?.

6 Answers  

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Explain what is electric traction?

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How to determine the breaking capacity such as break down current and break down voltage for VCB and CT's.

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Why the frequency of a system is changed if the load changes?

5 Answers  

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How does the slip regulator works as a startor

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what is difference bwt active&passive component

1 Answers  

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