Answer / ashok_sharma

Feed Back transformer is a just Step up transformer.
it voltage up,up to system voltage.

Answer / praveen

the above ans is write
the primary voltage given to the transformer is very less
that is about 24V
it is sted up to... the required voltage of the motor

We know that primary transmission is done to reduce current so that i^2*r loss could be minimised but according to ohm's law v is directly proportional to i,which indirectly means higher potential difference means larger current?so how the current is minimised in high power transmission line??

2 Answers  

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how current is reverse from its normal direction during the fault?

0 Answers   HGF,

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what happen if rotor earth fault in AVR system?

1 Answers  

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For an 100kw generator, only 50kw of load is connected. Will the generator generate only 50kw or 100kw. If it generate 100kw what happens to rest of the 50kw. What happens if we connect more than 100kw of load?

2 Answers   L&T,

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10Hp, 3-phase, 415v, 50Hz induction motor. The above motor is to run on Star-Delta connection, so how do i make following hardware selection 1) MCB, 2) Contactor, 3) Wire Gage (Depending on P-P current or Line Current), 4) OLR, Please tell in detail how to do the above, so as to get the ans. of it even if the Hp rating changes.

1 Answers   Engro,

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Short circuit test of induction motor is carried out to compute= A stator resistance B rotor resistance C magnetizing reactance D stator reactance

2 Answers  

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The speed of a dc motor can be controlled by the variation of 1. armature voltage. 2. field current. 3. armature circuit resistance. 4. angle of brush shift. Which of the statements given above are correct? (a) 1,2 and 3 (b) 2,3 and 4 (c) 1,3 and 4 (d) 1,2 and 4

1 Answers  

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What is effect of over voltage and under voltage on ACB

0 Answers   EFS,

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what does the transformer connection symbol YNaod1 mean ?

3 Answers  

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what is the definition of Nominal current or voltage

1 Answers  

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How do you convert the lt amps on a transformer to the ht amps?

2 Answers  

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Is there any problem ,if R-Y-B voltage is constant , but the air compressor taking one phase high current.what is possible causes.the said compressor is very new.(55kw).

4 Answers  

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