what happens when dc supply is given to the transformer?

3 Answers  

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why single phase to grd test in HV cable?why not 2 phase at a time?

0 Answers  

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What is the meaning of capacity of a 63 Amps TPN MCB? Is it the per phase capacity or the totol capacity?

1 Answers   Mother Dairy,

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how to setting Load amps tripping time and extra settings for load Transformer protection relay with RMU panel using C&S model relay..?

0 Answers  

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Define magnetic centre in a motor?

1 Answers  

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What is the difference between KW & KVA ?

10 Answers  

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we have require a Motor (1500kW, 6.6kV, 50Hz) which shall operate at 1500rpm during 30min and after it shall run on 500rpm during 15min. The same cycle shall be repetitive during the whole working days. Which method is best and economic to achieve such type of task. VFD, VVFD, Pole changing motor etc.

0 Answers   MTN,

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Draw the line diagram of diffretial relay connected to transformer?

0 Answers   NTPC,

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Our Alternator nameplate specifies a power factor of 0.8. When the Alternator is on light load, the bus bar voltage rises to 11240 volts, whereas the standard value is 10500 volts. Is it ok to increase the power factor to 0.85 or 0.9. I am afraid because the power factor on the name plate is only 0.8 ?

3 Answers   Escube,

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what is the function of choke and starter in a tube light?

2 Answers  

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what happen as when voltage drop(or may decrease) ? in case of atomic base theory?

0 Answers  

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In an ACB shunt trip coil and undervoltage coil operated normally( breaker open and charged). But closing coil not operating untill manually discharge and recharging. Any help.

0 Answers   PPIL,

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