Answer Posted / hareesh k.s.

dc series motor can work in ac also.while connecting to ac
there is change in flux due to the alternative nature of
the ac supply, that cuts by the armature which results the
rotation of the armature.

Explain the advantages and disadvantages of thermal power plant?

1097

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What do you mean by per capita requirement of electrical energy in india

2237

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How can we find the breaking capacity of a Load breaker switch (LBS) fed from 11 kv supply??ex:50KA, 26kA etc???detailed step vice answer pls.

2013

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what is difference between bus coupler and auto transfer switch

4166

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can some one clearly explain why -48 volt DC use in telecom site????

1679

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how to select diiferent power transformers of same capacity on no load loss and full load loss by economical point of view.?

1964

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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.

1951

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difference between power surge and switching transient

2079

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What should be the height of basement according to NBCC code?

2198

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what is meant by impedance & transient protection?

2102

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What is polar plot?

1163

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and gate circuit diagram,amplifier circuit diagram

2062

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Why choke coil is connected in series with starter in tubelight??why starter is connected in parallel to tubelight??

3370

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What is dynamo function in DG sets and draw block diagram?

2033

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for a 500 KVA connected load, I calculated 30% of capactor for power correction. Even after using 225 KVR capactor PF is not improving. What could be reason for low Phase correction factor?

1956

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