Answer / bala

we cannot rectify the signals which is having magnitude less
than 0.7v.We should go for precision rectifier

In Swinburne's Test on D.C.machines, why the efficiency is more when the machine runs as generator than when it runs as motor???

6 Answers   College School Exams Tests, GE, MVR, Practical Viva Questions,

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i have attended the interview on 4th June,08 at Kolkata in IOCL, can anybody tell me what is its result

0 Answers   IOCL,

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in our all power plant have connected in grid and grid voltage and plant voltage is same, but as per as electrical concept the power will transmit from high potential to low potential but here altough same,then how power transmit from power plant to grid.

0 Answers  

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what is active power and rective power and power factor

1 Answers  

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what happen if generator exitation lost?

7 Answers  

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As Electricity Generates in MW I w'd like to know What are the factors we have to consider regarding the transmission of electricity from generation station to Public uses(230 V)

1 Answers  

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A 15 kw squirrel cage motor having a maximum efficiency of 90% on a continuous full load has temperature rise of 42 degrees celcius after 30 min and 52 degrees celcius after 1 hr under the above operation conditions. a) calculate its final steady state temperature rise on continuous load and the heating time constatnt. b) if the motor is operated on a short load for 9 min estimate its temperature rise. c) calculate the maximum overload that can be applied on a short, 9 min rating so that the temperature rise is the same as the final steady state temperature rise on continuous load.

0 Answers  

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What is the Maximum Power generation capacity of a Synchronus Machine ??

1 Answers  

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As per BIS, Earth pit resistence value?

4 Answers  

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Why we not use the impedance relay in protection of short transmission line ?

4 Answers  

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what is load cell? whrere its used ? how to measured?

2 Answers   Essar,

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If the generator will trip, what you will do as an electrical technician in charge.

1 Answers  

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