why is power supplied in 3 phase only? why not in 2 or 4 phases?

11 Answers  

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what happens if DG N earthing fails while running and N Earthing fails while Transformer on load ???what will be the impact ???????/

2 Answers  

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At the starting of dc motor and syn.motor and induction motor high current flowing through the winding. Due to this the windings burnt out. To avoid this different types of starters are used. But incase of transformer what Will be used (At starting no emf is induced in the primary winding)?

0 Answers  

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L&T ACB C-POWER OF 800A FAULS TRIPING AT THE TIME OF 110KW MOTOR STARTS WITH EARTH FAULT RELEASE

1 Answers   Ambuja,

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What is the reason of polyphase induction motor tripping suddenly on high current during running at 70% laod? Motor IR , winding resistance & inductance balance. Motor no load current is balance and ok as per mgfr. data.

0 Answers   GNFC,

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what is synchronizing panel & its working.

3 Answers  

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What is the difference between newtral earthing and body earthing?

3 Answers   JK Lakshmi Cement, NPCIL,

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An AC Motor to give DC supply what happen the motor.whats the problem are create.

2 Answers  

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What will happen if i replace a inductive proximity switch with photo sensor in a machine?

0 Answers   Hitachi,

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With a phasor diagram show the effect of increasing the field current of a generator supplying a constant real power and connected to a grid system.

0 Answers   VECL,

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what is meant by skew width in machines?

0 Answers  

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What is the difference between resistance grounding system and resistance earthing system?

0 Answers  

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