why transformer calling in VA rating

6 Answers  

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Why should be the frequency 50 hz 60hz only why not others like 45, 95 56 or anything , why should we maintain the frequency constant if so why it is only 50 hz 60hz?

0 Answers  

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what about the input current fan when regulator regulates to speed low?

1 Answers  

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why total tape position are odd in number in Power transformer ?

1 Answers  

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Why the motor was take the starting current is high?

3 Answers  

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what is the cause of voltage dipp or swell in the transmission lines?

0 Answers  

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How can calculate the rating of a servo stabilizer for given a specific load

0 Answers  

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what is the difference between RMS & TRUE RMS VOLTAGE

0 Answers   IIT,

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how the earthing point or earthing is taken for ships and airplanes?

1 Answers  

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A 50Hz,4-pole,3-phase,star-connected synchronous motor has a synchronous reactance of 12ohmsper phase and negligible armature resistances.the excitation is such as to give an open-circuit voltage of 13.2kilovolt.the motor is connected to 115kilovolt, 50hertz supplying. what maximum load can be the motor torque,line current and power factor?

0 Answers  

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Which rccb 30ma,100ma,300ma sensitivity should be used in domestic line and what is difference, advantage and disadvantage of all three

2 Answers  

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I have 200 KVA Isolation Transformer for UPS input side. & ups was having 48% load, suddenly got short what will be the reason.

1 Answers   Mukand,

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