why core losses are affected with change in voltege in transformer?

1 Answers   HCL,

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How to test Power Transfomer vector group?

1 Answers   Bhel,

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in GEAFOL Cast-Resin trnaformer of 11/.72kv which has tapping of 11550v,11250,11000,10246v in primary side. To obtain 700v. which tapping should be used of HV side as we have 11000v/720v tapping now .

1 Answers  

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Why current shoots up in the secondary on the knee point voltage during saturation test of CT? How core saturation effects the secondary current (while the primary side is open)? What the logic behind this?

0 Answers  

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what is use of stater and choke in tube light.?

2 Answers   Aditya Birla,

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how to determine motor size for a fan application?

0 Answers   EDC,

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types of arc quenching methodes

2 Answers  

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Why voltages are 11kv 33kv why not others?

2 Answers  

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10 Mtr Hight of Lighting Arrestar how much area coverd??

0 Answers   OmniActive,

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why trip circuit supervision is taking through breaker contact? what happen if takendirectly?

2 Answers   GE,

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What is the permissible sound level for 1000kva DG set and how the sound level is calculated.

1 Answers  

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If an electrical component has a positive temperature coefficient, how come such components have high power losses due to heat if current decreases when resistance increases? assuming power given by I^2*R whereby the Resistance is infinite.

0 Answers  

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