Answer / manoj yadav

VFD(Varriable Frequevny Drive) will used for varrable speed
utility, like- elevators, hydropnumatics pumps,
Airconditioning, etc.

which motor is used in our Indian Ceiling fan -Capacitor start and run or Capacitor start? (during repair i saw only one capacitor so it should be start only)

5 Answers   ABB, Bajaj Electricals, Power Grid, Ruchi Soya, Suzuki,

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How are harmonics produced in AC machines?

4 Answers  

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explain working principle of earth leakage relay

0 Answers   Divis Laboratories, SMIORE,

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What is the Designing & Selection Procedure for a DG/Transormer of rated capacity?

0 Answers   SCS,

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How will you Physically differentiate A.C and D.C motor?

10 Answers   BSNL, Polycab,

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What is the difference in calculating size of AC cables compared to calculating size of DC Cables? Usually DC Cables are larger than AC Cables although they have the same ampacity. Why is it?

0 Answers  

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why capacitor takes more current

4 Answers  

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Short circuit current of 2500 KVA 11/0.415 KV transformer both Secondary and primary side. best regards. Ali

1 Answers  

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During he starting up of the motor, the upstream's MCCB (350A) always trips due to the UVT relay activated. Can Star-delta starter use for a 20kW Motor (For a powder mixer machine) cause voltage-dip in the supply line voltage? If so, what are the recommended solution to eliminate/reduce the transient voltage dip in the line voltage?

4 Answers  

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Why does the speed regulating system adopting I controller have no steady-state error? In this single closed-loop speed regulating system, when the input of the I controller Un=0, what is the output voltage of the regulator? What factors do the output voltage depend on?

0 Answers   Sterling Wilson,

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How energy is generated in hydroelectric power plant?

0 Answers  

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what is differnce btwen lll and lllg faults

0 Answers  

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