Answer Posted / zafar

the answer is not correct the correct figure is 25mmsq

what is meant by motor startup supervision & motor load jam protection ?

5932

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What is the physical significance of phase.. i.e. what is exactly the meaning in layman's language.. 1 phase, 3 phase etc ???

2125

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what is the use of sdf?

2051

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need to make a report. Need to choose a 3phase induction motor. Load conditions motor will operate in : Maximum Load: 30 Kw Speed: 2950 rpm Ambient temp: 20 cent Supply voltage: 440V Frequency: 50Hz need to look for the safety factor when choosing the motor, went through catalouge found a few, but dont know how to choose the safety factor allowing an extra load something above 30 KW to avoid any harm.

1773

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stand by earth fault protection (51G) for transformer rating 2000 kVA,Dyn11,33/0.400 V. LV NCT ratio and necessary resistor and metrosil values how to calculate

2748

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what is meant by flywheel and its role in retardation test

2370

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State the types of distortions in amplifier?

1149

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i need to now what will be the cable size to the following load, transformer to distribution panel distance 110m, load 1000kw, voltage 400v, pf 0.85, permissible voltage drop 2.0%, overhead line, atmospheric temperature 35 degree c.

1570

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what are the principles of a booster converter?

2014

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How to arrange a hous hold earthing system to keep minimum earth resistance( below 7ohms).

2118

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How I calculate the ELCB for circuit breakers?

2110

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How to prepare electrical preventive maintenance plan & shedule of machine tools in manufacturing unit.

2107

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How to Design green buildings services? What is the advantage to design green building?

1743

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Following test should be conducted to find out relative polarity of transformenr terminals A no load test B back to back test C phasing out test D none of above

2162

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how much LT load can bear by the 100 KW HT connection.

2165

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