Answer / sakthivel

why not

when ac current flows thru d coil of a contactr,it energizes,magnetic field attracts d contact of the coil...nw wont dt ac current in d contct induce current back on to d coil thru mutual inductance leading to high currnt in d coil

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I HAVE CONSUMER WHOSE POWER FACTOR IS 65% I WANT TO INCREASE IT TO 98%.HOW TO CARRY OUT?

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what happens if we earth negative electrode of an rectifier transformer used in ESP. In which normaly positive is earthd from inside the xmer.

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I have a drawing of a wound rotor induction motor for a crane. This crane motor has 5 forward speeds & 5 reverse speed implemented of course with different amount of resistance for each speed setting selected. What has got me scratching around is the fact that 8 of the 10 speed selections switch in uneven (unbalanced) amounts of resistances on each of the 3 connections to the motor's rotor.Can this be possible? I would have assumed this would produce unbalanced rotor currents and therefore vibration in the motor. I would greatly appreciate anyone's comments on this. Many thanks, Confused.

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How colour picturetube works & how many year it will works.

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explain why the secondary terminal of current transformer should not be lift open circuited.

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If stator & rotor of a 3-phase induction motor have different no. of poles, will the motor run or not??

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How much current in 100 kva Transformer HT & LT side

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What is a surge supressor why its is used in synchronous generators

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How DC earth leakage currents can be reduced ?

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how to determine kilowatts (real power) is used in energy meter? is it apparent power effect the disk rotation?

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Dear sir, In our plant have Station Transformer having capacity,i want to know, why LV side 40 - 40MVA is given? & how we can get 6.3 KV supply from tertiary(i.e. Open delta connection), Vector Group YNyn0 - yn0 +d MVA Rating 80MVA / 40 - 40MVA + 26.7MVA Voltage rating 420 (Tap range +6,to -10)81.25% /11.5KV - 11.5KV +6.3KV

0 Answers   Bhel,

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