Answer Posted / prabhat

Acording to faraday's law of electro magnetic induction

In 90 kva alternator that produce the output voltage is 115(p-n),200(p-p) at 1500 rpms means what ampere it produced ?

2080

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how are reversing the direction of dc motor

1700

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Why the standard of ambient teperature mentioned as 40 degree celcius in machines.

2051

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what is mind in cable

2134

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Wt is the function of reactive power? How it generates & consume though resultant is zero?

1938

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Is any generator is developed which is operated with out diesal or other expensive source?

2143

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WHY THE RATINGS OF THE TRANSFORMER IS 33KV WHY NOT OTHER???

2440

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WHAT CAUSED THRESHOLD VOLTAGE TO EXIST?

4113

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Basic motor transformer generator

1543

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5- What is the task (function) of the excitation and isolation transformers in power plant? 6- What is the task (function) of LCI (A), LCI (B) and LCI (COS) in power plant? : LCI (A) and LCI(B) are load commutating inverter for generator turbine starting. , LCI (COS) is load commutating inverter change over switch

3869

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physical identification of HT & LT panel

1723

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Sir, My doubt on cable sizing calculation, Load:74 KW calculated cable 1 run 50mm2. Now client asking us to reduce cable size by increasing runs. Sir, My question now when my mind strikes with 2 options 1) Divide load 74/2 = 36 and calculate cable for 36+36 making it 2 runs or 2) Simply i can divide 50mm2 /2 ie. 2 runs of 25mm2 Please suggest me sir

2015

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write a program that prints prime numbers from 1-20 in digonal form

2059

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what is the formula for hv test for cable and circuit breaker..????

2085

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I have one ct of ratio 3000-2000/1 Amp its knee point voltage mentioned on name plate is 500-333/30mA-50mA at Vk/2. in secondary box there is three terminal named 1S1, 1S2, 1S3 then on which terminal obtained the knee point voltage ie 1S1-1S2 OR 1S1-1S3 & also specify the knee point voltage for the ratio 3000 from name plate.

2484

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