Answer Posted / r.praveen durai

May be by VOLTAGE FREQUENCY DRIVE (CYCLOCONVERTOR).

what are the components in electrical control panel (for example: 415V, 3-ph, panel to operate utility and 3-ph DG set).

2028

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1. Why is the speed of shunt motor practically constant? 2. Why dc series motor use to start with heavy loads? 3. advantages & disadvantages of separately excited generator over self excited generator?

2531

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current transformer balance the power level on both sides. e.g in case of step up, at secondary side voltage rise but current decrease and vice versa in case of step down transformer. but how this power level remains same in case of current transformer and voltage transformer

1587

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11000volt DG set carnt kaise banvay

1663

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what is a composite error in current transformers, why occurs & in which it will occur i.e, either metering ct/ protection ct

1831

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What is the difference between security constraint unit commitment and security constraint optimal power flow?

1703

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what is meant by LCR meter? where its useful ?

2038

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A 100W electric lamp is supplied from a 115V, 60HZ source. The peak instantaneous power dissipated in the lamp filament is

2367

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what are the 4 rules to start the motor?

2100

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If we have to find the inductance of a dc shunt motor then by giving dc supply or ac supply and what is the reason for it. (this example is from "to determine the transfer function of a dc shunt motor ")

1937

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I have 1500/1A CT If i connect this CT in 6.6KV bus bar means what will be the voltage present in CT?

1984

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how many joints are allowed in underground HT cable of 1 KM

1851

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What would cause a 240v choke that should give 110v out on a 16w lamp to gradually increase to 160v?

2150

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for hipot test on 33kV busbar, we will test on 70 kV or 56kV, what is the acceptable leackage current?

1147

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what are all types of cross section in AC cables?

2282

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