Answer / guest

Reactor is the heart of power system where power is generated

why we not connect the 12 V batteries in parallel to get the more backup supply for an UPS ? wheter off line or on line UPS ?

2 Answers  

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How dia computation perfomed in cold rolling mills .

0 Answers  

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which is the most advanced form of SF6 BREAKER?Can we use other gases to quench the arc?

0 Answers   TATA,

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in one substation we have two power transformers of 100mva,75mva capacity.statoin load is155mva.how much each tranformers share the load????

6 Answers   TNEB Tamil Nadu Electricity Board,

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I want single line diagram for AMF & DG syncronizing panel

0 Answers  

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why overload relay is not tripped at time of starting of motor allthough staring current is too high?

5 Answers   TATA,

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We have 800KW motor operating at 6600Volt,50 Hz supply.During 1st startup it tripped on overcurrent trip.It's FLA is 88 Amps.The K factor of Thermal overloaaad was set on .94 initially.then we set at 0.97 and then it started fine.i dont understand why it tripped first?What are the protections which comes in picture during starting ?

6 Answers  

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What is use of 3phase instead of single phase?

12 Answers   DCM, L&T,

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generally the electrical equipments not to be operated at leading power factor, why?

2 Answers  

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what is transformer tap change HT side and LT side

1 Answers   Alstom, Sodexo,

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formula for cable size calculation for current?

10 Answers   KL Power, ONGC, RL Clean Power Pvt Ltd RLCPPL, SAS, Sobha Developers,

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will the power consumption remains the same when speed of the fan cnanges??if so y??

2 Answers  

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