Answer / k.prakashchandra

The wattage mentioned is PMPO(pulsed mode power output) and
is much less than regular electrical watt

Answer / k.prakashchandra

The 'sound power' output is measured in decibels which can
also be expressed in watts.

an off load but energized 11/0.4 KV, 1250 KVA T/F has a power factor of 0.65(capacitive)..!! why is it so, though T/F being an inductive device ??

4 Answers  

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how to calculate knee point voltage for pt?

1 Answers   Amec,

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it is possible to rotate the DG engine dc starter with wrong polarity connections? why?

0 Answers  

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Why there is not any reactive power in DC although it causes magnetic field.

7 Answers  

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i have gear oil pump with single phase motor.some time its motor starts running in reverse direction rather than forward direction...whats the reason behind this issue. 1- either capacitor is week? 2- or winding is week?

0 Answers  

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1 Kva = How many KW

3 Answers   Reliance,

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Welding machine

1 Answers   CEL,

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In 110V DC supply,if a closed circuit gets open, How can we identify the voltage which is measured after the resistor(4KOhm) which is open with negative.it shows 55V +ve when measured, also the actual positive source is 55V +ve .Because there is no voltage drop in open circuit. How can we identify whether this is the voltage which is series with the resistor or the DC source direct +ve.

1 Answers   GE,

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Is it necessary to seperate the DG earth grid with Electricity Board earth grid for protecting the DG set. if yes why?

2 Answers   BARC,

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there are cam operated switches - why we call cam operated , What is cam ?

0 Answers  

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why are the maintaine power factor and how can this control and this is how work.

0 Answers   Mukand,

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Derive the inductance of a coil in terms of its physical factors.

1 Answers  

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