Answer / k.prakashchandra

If the load is zero the field current is very low.To negate
the applied voltage ,the speed has to increase.

Can a generator runs after getting 1st stator earth fault.

0 Answers  

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How the main bus bar rating of 400kV switchyard with one and half breaker scheme is calculated.

2 Answers  

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HELLO EVERYONE, I RECENTLY HAVE FOUND ONE PROBLEM, I WAS TAKING NO LOAD TRIAL OF AN HT MOTOR 920 MOTOR , 1440 RPM , 6.6 KV, WITH AUTO TRANSFORMER. AT 450 V, LOAD WAS 40 AMP AND SPEED WAS 250 RPM. BUT AS WE INCREASE VOLTAGE FROM 450 TO 480V, LOAD BECOME 41 AND SPEED REDUCED TO SOME RPM . SO WHICH PHENOMENON ACTED HERE FOR REDUCING SPEED.?? AND IS IT HAPPENING ALWAYS OR IT IS RARE? I ALSO HAVE FACED SUCH PROBLEM WITH FEW LT MOTOR ALSO.

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what is the benefit of floating our DC source? if i have two floating DC source of which 1 has a ref voltage of -21VDC and the other of -18VDC. can it be connected in parallel to share a common ref voltage? if not, how do i make both sources to be of common ref voltage? tks

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What do you mean by reverse current braking of an induction motor?

1 Answers  

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what is unit of inductance

12 Answers   Bhel, Bosch, OSML, Vijai Electricals, Voltage,

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Why we find the sensitivity for the CT's to check?

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What should be the overcurrent, instantaneous overcurrent, short cicuit current settings (i.e. how many times of motor full load and what is the time duration) for a motor?

1 Answers  

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in fuel level controller what is MOV please define.

2 Answers  

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What is the use of 1:1 isolation t/f in any circuit...?

3 Answers  

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How to calculate flow of water delivered by pump when pressure & size of pipe line is given

0 Answers   Knight Frank,

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Minimum IR value of 1.1 kv grade 3.5c (300, 240,185,150,120,95,70,50,35,25) sqmm Aluminium XLPE cable and 4c (16, 10,6 & 4) sqmm cu arm cable between RY,YB,BR,RN,YN,BN,RE,YE,BE & NE.

0 Answers   Gasco,

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