Answer / lipika

1.differential protection or merz price protection
2.modern differential protection
3.stator interturn protection

Answer / km

when the protection trip is operated and the has not open
for less than a one second or depend upon our setting it
will gives an alarm.

although ckt breakers have taken the place of old fuse. But instead of it , these older ones are still used in the industries and homes ? why .... what are their advantages and disadvantages ? which one is leading and winning the race and competition ?

0 Answers  

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what happens when parallel resonance occurs?

2 Answers  

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Why r used of cable 50sq.mm and above size cable in 3.5 core. And below size in 4 core ? any technical reason please explain it

2 Answers  

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What are the advantages of stationary armature and rotating field system?

0 Answers  

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detailed procedure how we calculate cost for pcc m10 and rcc m20 including centering and labour excluding steel/ iron

0 Answers  

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Is VVVFD reduced the starting current of an induction motor?

1 Answers  

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At the time of 1st charging of transformer, there were huge inrush current, so why at that diffrential relay are not operated? Why?

3 Answers   Adani,

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if AVR fails in alternator. what will be the effect.

13 Answers   HP,

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Whot is the braking capacity for MCCB. How we select different braking capacity.

1 Answers  

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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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we r having 3 core 3 1/2, 4 core cables how we can know this cable has to be used for this purpose?

5 Answers  

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why the altrnator(AVR) not showing the any voltage after making the new winding and insulation?

1 Answers   Avon,

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