What is a single phase autotransformer?
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WHICH TYPE OF TRANSFORMER USED IN SWITCHYARD IN POWER PLANT?
15 Answers GE, Lanco, NTPC,
What is the difference between in Fourier series and Fourier Transform. and please tell me the difference between both of them and the why we use them in communication system?
Describe kW and kva and difference between
What is zero of the system?
In power point wiring,often,we use less size of earth wire compared to phase & neutral wire and we use big size pin in pug top. how is it justified? can we use small size cable for earthing?
It is desired to flood light the front of a building 42 meters wide and 16 meters hig.Projectors of 30 degree beam spread and 1000 watt lamps giving 20 lumen/watt are availabl.If the desired level of illumination is 75 lumen/m and show a suitable scheme.Assume the cofficient of utilization, deprecitation factor and waste light factor are 0.4, 13 and 1.2 respectively.
in our 6.6kv motor feeder[it is having two sources from Bus A&B] earth fault relay is acting, we checked CBCT connection and cable meggerd values found very good still earth fault acting during first two are three start after that it will hold. please clarify what was the reason. if same motor is starting from other Bus-A it will start.
how much Amp we can put in 1200kva generator?
How many types of electrical earthing are there?
any body know about lighting arrestor. how to determine the height of lighting rod from top of bulding and how many area it cover.
why induction generators are used in wind mills.why cant synchronous generators b used??
How the size of electic machine vary with the sped? Between slow and fast running machines of equal ratings, which one is more economical to design?
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