Answer Posted / esveekayzee

for starting a rated motor with a DOL starter which draws 5-
6 times of load current initially which causes voltage
drops in line while a soft starter takes comparatively less
current and gradually decrease to the rated current.
but the main draw back of soft starter is its torque
remains low at the starting.

what is earthing.how we make it,describe briefly.

2622

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what is RNG in the DG synchronizing by PLC?

2139

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What is resonant frequency?

1285

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is IS says that neutral should be brought to switch box. and this one is a recomended practice

1877

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what is the formula of starting current of 3phase and 1 phase motor???

2118

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Draw the circuit of clapp oscillator?

1144

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how much flux density of CRNO core

2999

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What are the advantages of instrument transformer?

1168

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How does PLC work for sychronising of Two or more DG sets?

2080

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How many types of losses occur in a transformer?

1164

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i am an maintenance engineer. one distribution board have 5 feeder. recently its ELR trips frequently, but it take some times after trip( 10min,20min..)but 3 feeder no load. two feeder only loaded. i checked one feeder IR value all values are above 50Mohm.but B phase to Earth is only 9Mohm.any problem about low value

1951

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What is reactance, reluctance,capistance, pls give answeer in hinglish and be simply Jo asani we smajh m aa jaye

2120

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what is the relation between size of the anteena and wavelenghth of radiated wave

2187

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how to calculate the torque of a motor?

2140

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how was your last weekend.

1794

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