Answer / raja

IT WILL ACT AS INDUCTION MOTOR .

How neutral voltage for transformer decided? eg 33kv neutral voltage for 200MVA transformer?

1 Answers   MEIL,

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How to calculate no of Lighning arrestors are required for protecting 50mX 50m*20m cubical building and locations of LA?

0 Answers   HAL,

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How do you protect your appliances from harm in case of neutral failure in a three phase power supply set up.

4 Answers  

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is it necessary to earth the rmu before cutting off the transformer winding?if yes why?

0 Answers  

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why different series of vfds (like allenbradley)are used in industry ?

0 Answers  

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Define working of prim mover governer in alternator?

1 Answers  

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why ac generator ratings in kva only why not kw ????????????? ?

7 Answers  

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what is ratio of copper wire size and current ?

0 Answers  

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Why we are use 11KV / 22KV / 33KV / 66KV / 110KV / 230KV / 440KV this type of ratio. why cant we use other voltage ratio like 54KV / 99KV et.,

8 Answers   College School Exams Tests, Hino, ITC Infotech, Reliance, UPRVUNL,

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we have 3 single phase transformers. how will we generate 6 supply from 3 phase supply input

0 Answers   NHPC,

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A group of machines (wind turbines) connected with 33KV feeder and each machines are having individual VCB. The 33KV feeder connected with 110KV/33KV substation. The 33KV feeder tripped by over current at Substation and fault recorded at Substation as OC-R&Y phase. Same time the group of machines VCB tripped by over voltage, the fault recorded voltage was above 66KV by numerical Under/Over voltage relay. While grid drop time, this much of voltage hike is possible?

1 Answers  

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IS there any mechanical connection between the field winding and armature winding of a dc generator?

11 Answers   IOCL,

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