Answer / sunoj

Switches are mechanical devices that carry and break currents under normal circuit conditions. Disconnectors is a device used to isolate the downstream electrical installations. Switch disconnector fuse unit is a unit that consists of both the above properties

In three phase, phase to phase voltage is 440 Volts, but the three phase motors are designed for 415 Volt, 50 hz, why

1 Answers   Shree Ram, Shriram, Sri Ram,

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Draw SLD for a panel has 500A Bus Bar rating, with 4 outgoing, each is 80 A (load current), showing the transformer and capacitor bank rating.

0 Answers   FEWA,

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Which starter can be used for 3 phase verriable speed (2 stator wdg) induction motor ?

2 Answers  

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Why is the earth fault relay connected to the Yellow Phase?

4 Answers  

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how to set the time in digital timer ?

0 Answers  

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What is installed in PAC that is control the humidity

0 Answers   Sodexo,

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what is intermediate switch

1 Answers  

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How would you supply power to a village which is very far from a sub-station and has only a 11kV line running near by?

3 Answers  

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why only 26v dc is used in aircraft and 115v ac in aircraft.

0 Answers   Jet Airways,

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How can we decide the fualt levels of sub-stations?

2 Answers   Bhel, Enercon, Prakash Industries,

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when we design electrical schemes of 11/.415kv distribution..wen and were should we show the relays??what is the function of it?for example..we place EFR Relay CT between transformer neutral link and transformer earth.Like this what are the other type of relays we should use?why?where?Explain please..Thank you

0 Answers   ETA,

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what is difference b/t ac current and dc current

4 Answers   L&T, Meghana Engineers,

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