Explain the laying procedure and laying depth of submarine cables under sea?

1 Answers   Schneider,

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why in isolation transformer we dont get any shok?

2 Answers  

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In VVVF drive voltage is varying in accordance with frequency.My question here is How much will be the voltage in the inverter side if the frquency is set for 10Hz ?

1 Answers  

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75kw drive operated motor current fluctuation from(85-130)ampere.current setting in drive is 130amp.sometimes motor trip when current limit cross 130amps.I change the drive. still current fluctuate between 80-130amps but in this time motor not trip,current setting in drive is 130amps.where is the problem?

1 Answers  

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Hello friends, Can anyone explain the concept of zones in Bus bar protection and how can we differentiate the main zone and check zone in Bus bar protection

1 Answers   ABB, NCC,

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how to arrange the generator protection ansi 48 (loss of phase?)

3 Answers  

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Define newton's law of viscosity.

0 Answers   Godrej,

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how speed control of induction motor?

4 Answers   DVC,

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What are the major types of Curent Transformers?

2 Answers  

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To make a basic instrumentation amplifier, it takes A One op-amp with a certain feedback arrangement B Two op-amp and seven resistors C Three op-amps and seven capacitors D Three op-amps and seven resistors

0 Answers  

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how braking & making capacity of circuit breaker are calculated?

0 Answers   Bhel,

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Why is back emf used for a DC motor? Highlight its significance.

0 Answers   ABB,

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