Answer / raghavendran.r

AMF panels, are used to automatically changeover from mains
electricity supply to stand-by generator or genset on
failure of the mains supply.

AMF panels can be relay operated or PLC operated and
elective features like auto start, auto changeover, no break
change over, etc. are also available.

How do you calculate of power factor, if it is lagging or leading for unit(1).

4 Answers  

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what happan when ac power transmitted in unity power factor

12 Answers   JE, Maihar Cement,

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What is LT? And specify the range of voltage?

10 Answers   HSL,

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how can we chack a capacitor in acircuit

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The unit of current is the:(a) Volt(b) Coulomb(c) Joule(d) Ampere

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how many number of terminals are available in CURRENT TRANSFORMER

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What is the Relation b/w star delta starter , DOL starter and two speed starter. if we want to rotate a 20 kw fan in 2 speeds which type of two speed starter we have 2 use?

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Draw the equivalent circuit of crystal oscillator?

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for what voltage will reactive power be largest in 380 kv line : a) 375kv b)380kv c)385kv

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Which are resistive loads & which one are inductive loads : Refrigerator, Split air conditioner, ceiling fans, well pump, fluoresecent bulbs, T.V, CRT Monitors, Adsl Routers, C.P.U, Printers, Deep Freezers, Speakers, DVD Players, Microwave oven etc. ? Output Power for these Appliances Would be same like this : P = V * A * P.F Or would be changed ? thanks

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upto how much low RPM we will run the commercial motor which is run through VFD without any problem occurs in motor.Motor rating Duty is S1 & RPM is 1400.

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What happens to a line-frequency of high-frequency transformer when it is first energized/ re-energize?

0 Answers  

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