How to design grid earthing

1 Answers  

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what happens if we earth negative electrode of an rectifier transformer used in ESP. In which normaly positive is earthd from inside the xmer.

1 Answers  

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what is motor capacity of 80TR chiller? and also say what is the formula related temperature, motor capacity, TR?

0 Answers   Apotex, Periyar Chemicals,

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my UPS is 600VA with 0.6 p.f and i use it for my computer which has 450W power supply unit, a monitor of 633nW and speakers. Can any one explain this.. because the output of UPS should be 360W (<450W)

2 Answers  

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what is the difference between line voltage meter and relays

4 Answers   TCS,

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what is diffrence between primary & secondry transformer?

3 Answers  

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give me applications of sequence bridges . (used in 3 phase un balanced systems)

0 Answers  

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how circuit breaker work.. what is the operations taking place inside a circuit breaker when an overcurrent occurs... is it similar to fuse?

0 Answers   LTT,

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We have a 33/11kv switchyard having 12.5 MVA power transformer. We export & import power through this transformer. When we export power, the PF will be depend on GRID PF & when we import power the PF will be depend on our load PF. but the problem is that,when neither we export nor import but our 33KV vCB is in close position,our meter read the power factor 0.14 to 0.25 at that moment. So how can be we improve the power factor at that moment.

3 Answers  

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Weather power factor correction needed for synchronous motors?

1 Answers  

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what is advantage of using star to delta in place of dol starter

4 Answers  

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Why you are switching off arc protection mcb when you are taking shutdown for lv board.

0 Answers   KSEB, L&T, Siemens,

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