Answer Posted / venkatesh prasad

there are no protective devices in the starters, starters are mainly used to protect the motor from high starting currents.

Is it good to short Neutral and Ground in the PLC or DCS main Power supply. Pls give YES or NO with reasons...? Simarpreet

2546

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what happen if generator of micro hydro running at only a small percentage of its capacity, as a comparison, if the diesel generator that runs on only a fraction of its capacity there will be a wet stacking

1953

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What is a commutator?

1058

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what is consequences of neutral and earth connect?

2130

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why chock were used in old tubelights but are not newest tubelights?

1969

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3 shows a 415 V, 3-phase generator supplying a 3-phase 415/110 V transformer. Draw the individual and combined impedance diagrams to a base of 10 kVA. Determine the system fault kVA and the fault currents at the 415 V and 110 V busbars for short circuit faults on the transformer input or output terminals. Work in p.u. values of impedances.

2661

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hello everybody. what does an abnormal stator winding impedance or dc resistance show? thanx

1922

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How to calculate earth fault current for 6.6 KV , 50 HZ , 756 Amps , 3000 RPM , 0.8 PF generator

2053

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If you don’t have coal, salt and copper, then how would you earth your connection temporarily at a camp site.?

2231

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700KW 6.6KV slip ring induction motor to use VFD to control the speed

3211

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Give me the calculation steps to design an electromagnet to be work in 230V 50 Hz AC Supply. Also give force that is created by that electromagnet when it gets energized.

2222

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Explain the process of commutation in a dc machine.

1058

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1.why should we connect the measuring instruments in l.v side in short circuit test of a transformer? 2.why the power factor is less in open circuit test of a transformer?

2078

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Earth bits close or open. Which is correct

1956

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reason of diode failure in alternator

1863

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