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.

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.

0 Answers   ABC,

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difference between main metering kiosk and check metering kiosk

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Why cables and busbar both needed in LT Panels?

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I have 12MW gas engine based power plant its running parallel with grid. my problem is When cpp run in island mode(without geb) that time geb transformer power factor is 0.2 lagging. When cpp run with parallel that time power factor is 0.94 lagging So how can i maintain power factor ofgeb transformer in island mode 0.9 lagging?

1 Answers   SPCL,

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what is wave trap? And how it works?

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why power factor is only cosine angle not sine angle?

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Why Trasformers rated in KVA

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We in my plant one of the transformer showing neutral to earth voltage is 22V how to solve it

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Why synchronous motor is used in power factor improvement,dc series in lift

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