Answer Posted / ramkumar

ssr drive is working with digital pule like on or off but AC
drive is working mosfet triggering method

we have a rewind motor of 2Hp,2800Rpm, 220Volt AC. how can we choose the running capacitor for this motor, any formula for that?

1973

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A 400 V, 50 Hz, Δ connected synchronous generator has a field reactance of 0.1 Ω and armature resistance of 0.015 Ω. At full load, the machine supplies 1200 A at 0.8 pf lagging. Under full-load conditions, the friction and windage losses are 40 KW and the core losses are 30 KW. What is the machine’s overall efficiency? Ignore any field circuit losses.

1996

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what is the difference between oil surge relay and buchholz relay.

7091

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why the colour of insultor stack , petticoat is brown. Is it has some technical reason.

2081

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What is the rating of circuit breaker needed for 300 KVA load in 33 KV supply line in a transformer of 33 KV / 415 Volt ?

1820

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What is mean 2XWY

2549

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Why the efficiency of a three-phase induction is the motor is less than that of a three-phase transformer?

1183

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send me all basic electrical question and answers

2967

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

2078

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what is the saturation point of crgo lamination.

2297

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hi plz send me reliance placement papers..i.e electrical technical papers that have been asked in reliance test.

3005

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How to calculate that clean water supply in one Day from 150 KLD STP?

2070

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Dear All, I am new in construction company , my boss ask a question at time of interview , If we have 60MW generation and Single Power Transformer step-up we have. if CMR 50/60MVA , ONAN, ONAF respectively , is it sufficient or not ? for that much power to transfer,

1698

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What types of CMOS memories have you designed? What were their size? Speed? Configuration Process technology?

3742

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for a 400kv t/m line with 10 ampere current will corona occur?

2250

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