Answer Posted / any

directional relay compare the direction of power and current
from both the end so if get current from both the side the
it sense a fault and trip

What are capacitive,resistive,inductive surge absorbation? What is ferranti surge absorber? What is lagrangian cost? What is Px operator?

1996

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Explain the operation principle, advantages and disadvantages of the following converters: a) A 12 pulse converter b) A Switch-mode inverter c) A thyristor inverter

2041

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what are the major & minor faults that occur in an inverter and in UPS ? And how to repair and resolve them ?

2360

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at what basis/standard we have to arrive the current density of aluminium/ copper in busbar?

2117

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What is grid collapse? what is the reason for it?

2118

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Why colled 440V to 3-phase supply.

2142

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we have two generators different capacity on 15 MW and other 6MW at 11 KV , 15 MW gen. bus short level current 40KA,and 6MW short level current 25KA,, length of cable 100MTR between 6 MW from 15MW gen. for bus coupling . kindly tell any one can we use both NGR OR one NGR from any GEN. BOTH NGR has diff. rating. Tariq pakistan

1671

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What is steady state response?

1305

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If a rotary UPS is in line through grid power; What would be the impact on Power Factor if the load through rotary ups is 25% , 50% , 75% & 100%. Will the power factor reduce with less load?

1876

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what happen ehen synchronisation is done at below rated speed

2138

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What is Control & Relay Panel? And Remote Control Center?

2214

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I want to make street light with solar system ... What may I do for procedure and how much of estimation for each material ... If any one knows guide me and inform this id : aravindd7@gmail.com

1825

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Why are iron cores in transformers made laminated?

1109

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At full load wat is the motor p.f And at no load will is the motor p.f?

2115

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what happened when we supply a dc current in dc motor?? can it worked properly?

1944

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