power factor is max for which welding a.arc b.resistance c.gas

2 Answers   Bhel, HCL,

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what happen to the voltage and current in all phases when an earth fault occur in a phase in three phase three wire system(delta connected)...

1 Answers  

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why we test the core balance of the transformer?

1 Answers   Siemens,

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electrical knowelge

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 voltage in two phase?

7 Answers   ABB, SSG,

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How is a 100 MVA transformer cooled?

9 Answers  

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How the speed of synchronous motor changes with the variation of load?

1 Answers  

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how to fit 3 HP crompton gear motor with conveyor with the use of staring delta starter or ordinary starter?

0 Answers  

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how we can calculate which capacity capacitor bank we have to add for improve pf?

3 Answers   Consultancy, JM Huber, Torrent Power,

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Q-1 what are the structural and operational difference between a distribution and a power transformer? Q-2 what is skew in motors? Q-3 draw equivalent circuit of transformer Q-4 explain with phasors how pf is improved with loading in induction motors Q-5 DIFFERENT METHODS OF CABLE LAYING(interviewer asked if i heard new chemical based earthing system next) Q-6 pi model of medium length trans line Q-7 v/f control?why Q-8 vacuum circuit breaker operates in?

1 Answers   Vijai Electricals,

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what will happen if multimeter(selector switch at DC voltage) and terminal at current is connected to DC supply?

0 Answers  

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