Answer / bkm

as we know whenever there is change in flux wmf will induce
so by this principle we can say that rotor is running at
synchronus speed and by exciting it we create north and
south pole permanantely on it now for two pole alternator
after each 180 degree rotation pole change their position
and thus change in flux occur which induce emf in stator

Answer / rabia

as the name symbolises altrnater means something which
alternates or make use of such technology. alternater or
transformer needs AC cycles that alternates with a certain
frequency to cause induction through electronagnetism in the
second coil.

What is Servo Ventilated Motor?

0 Answers   L&T,

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is there any device that works properly accept relay, it may be fuse but if i want fuse of 33kv 300 amp it is avaliable, pls give me details

0 Answers  

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For 33 kv HT line how much amps fuse to be fitted pls explain with formula

1 Answers   Suzlon,

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we have require a Motor (1500kW, 6.6kV, 50Hz) which shall operate at 1500rpm during 30min and after it shall run on 500rpm during 15min. The same cycle shall be repetitive during the whole working days. Which method is best and economic to achieve such type of task. VFD, VVFD, Pole changing motor etc.

0 Answers   MTN,

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What is K-rated transformer? What is the use of it? What can be the size(pls provide calculation if possible) of K- factor transformer for 550kW,690V motor operating with drive (VFD)?

0 Answers  

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In alternator generally we give DC voltage to field of alternator but field (excitor)produce Ac & converts into DC by rotating rectifier(RR ) then fed to rotor .my question is why we cannot give dc voltage directly to rotor instead of Excitor & RR ?

1 Answers  

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how to check 3phase motor winding with help of multimeter?

2 Answers  

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What technology is used in latest generators?

0 Answers   IBC,

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If we know the load for generator in KW then how it will be change to amps and also if we know the load in amps how it will change in KW and what Generator is good for that...suppose load is 500 amps 3phase......??

1 Answers  

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how the grounding[earting] is achieved on ships.

1 Answers  

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What's ND relay & it's functions?

2 Answers  

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phase association of 3PH L&T static CT meter is wrong. means 1PH & 1 CT connected properly and other 2 voltage and CT's inter changed. what would be the impact in the reading?

3 Answers   KSEB,

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