Answer / bhagya

WE CAN DEVELOP 3PH POWER WITH 86% EFFICIENCY BY THE USE OF 2
INDIVIDUAL 1PH T/F.BY THE CONCEPT OF OPEN DELTA

Answer / guest

by phase shifter

Synchrounous motor is three phase motor,but its not self starting .why?

22 Answers   Delta Beverages, KI, L&T, NTC, TVS, Wipro,

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what is the problem with single phase AC motors and how is it overcome?

2 Answers  

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how does an open delta transformer works

2 Answers  

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What is the difference in Line PT & Bus PT.

3 Answers   Bhel,

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in case of induction motor when overload condition or any short ckt. why stator winding burn not to be rotor winding

2 Answers  

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To prevent the mal operation of a differentially connected relay while energizing a transformer, the relay restraining coil is baised with (a)second harmonic current (b)fifth harmonic current (c)third harmonic current (d)seventh harmonic current

2 Answers  

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What is plc.

2 Answers  

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what is the meaning of cable Glanding can you explain brifly?

2 Answers  

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why transformer ratinh is in KVA????/

8 Answers   Apollo, Priyadarshini, Reliance,

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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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Which Motor used in Fan's Motor ?

3 Answers   Matsui Technologies,

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FOR WHICH FAULTS OR CONDITIONS DOES A TRANSFORMER DIFFERENTIAL PROTECTION DOES NOT OPERATE???

10 Answers  

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