Answer / disha rane

In a transformer, the copper losses depend on current and the iron losses depend on voltage. Thus, the total losses depend on volt ampere and not on the phase angle i.e. independent of load pf. Hence rating in kVA and not kW.

Answer / hemalatha doddi

in transformer only voltage and currents will get changes
there is no change of p.f. hence its power is said in kva.

Answer / laxmikanta sasmal

bcoz it's unit is not depend on the power factor of the system.

Answer / viral shah

B'coz load on the trasformer is not decided at the time of
manufacturing.it may be inductive,capacitive or resistive
so p.f. varies accordingly that is why transformer unit is
in KVA.

if u have to run a 300kw moter then what is ur choice HT or LT switchgear & explain why?

3 Answers   Aditya Birla,

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from which subjects most of the technical que will b asked for hpcl(electrical).pls help me

0 Answers   ABB, HPCL,

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where is highest transmission voltage is used in india

2 Answers  

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one split ac how can told of this ac which Tr tell me us

0 Answers   Wipro,

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What is the use of lag compensator?

0 Answers  

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which type of motor we are using in local train???

4 Answers   Asia MotorWorks AMW,

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what is difference between electrical and electronics

2 Answers  

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What is thresh hold value of current?

0 Answers  

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If a HV Underground Cable (13.8KV) is layed in the ground below 1.5 Mtrs and any building construction is done on the Cable route. IS this allowable or Not? What should be the clearance. As per ISO construction on HV cable route is safe or Not? Why? Can any body suggest the site for my question?

1 Answers   ZCL,

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We are installing a 1.6 MVA transformer at our crusher plant and the feeder of HPSEBL is 2 km away at substaion . and a VCB is installed in the substaion which is 2 km away from transformer so we need another VCB near the transformer.

2 Answers   SCPL,

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How we can come to know the substation range,without go through any name plate ?

0 Answers   CG,

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how synchronous condenser is used in place of synchronous generator with out negotiating IEEE standards? Can i use 3 generators as synchronous generators and 2 generators as a synchronous condensers in an IEEE 14 bus system with out disturbing the standards?

0 Answers  

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