Generally the incandescent lamps in bathrooms fuse due to high voltage at night.What is the simple solution of this problem?

4 Answers  

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how to select power and control contactor .

1 Answers   Bhel,

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What is core balancing in Power Transformer. What is the affect of an unbalabce core.

1 Answers  

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1)Why potential transformer primary site grounded? 2)can be loop between neutral & body for grounding? 3)What is the difference between ELCB &RCCB? 4)Why we use iron core in transformer insted of wooden core? 5)what is the principle of excitation? 6)Why we test the core balance test for transformer? 7)what is creepage?What is the creepage length for insulators at different voltages? 8)How much type of relays used for differential protection of generator,transformer & busbar protection?

5 Answers  

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What is the difference between electronic regulator and ordinary rheostat regulator for fans?

0 Answers  

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why high voltage is reqiured or L.T. panels? what type of tests should be taken for electrical panels?

2 Answers  

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what is the right method of laying cable tray if we are using EOT crane in shed, better is below or up

1 Answers  

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What are the difference between off-load tap changer and on-load tap changer in transformer?

2 Answers   HCL,

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. Draw the vector diagram and condition for the following: 1) Dyn1 2) Ynd0 3) YnYn0

1 Answers  

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In IDMT RELAY the term minimum (M) indicates what?

7 Answers  

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what is the working principle of energy saver control panel. please give the complete calculation & theory.

0 Answers   Lupin,

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what is the physical phenomenon because of which skin effect occurs ??

6 Answers   Power Grid,

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