Interested to Buy Any Domain ? << Click Here >> for more details...
Why the transformers are rated in KVA ? in new view
- 3 Answers
- 6445 Views
- I also Faced
- E-Mail Answers
Answer Posted / pradyumna chandra panda
By help of power trangle pf= value of cos thita (cos fi)=
b/h=active power/apparent power. Active power (kw)is the
real or true power which the transformer give for a
aparticular load (useed power)and Apparent power(kva)is the
supply power for that particular load. That a 100 kva
transformer can supply/give 100 kw resistive load and
incase inductive circuit a 100 kva rtransformer give 80 kw
inductive loadat at.8 pf,and 75 kw inductive load at.75 pf
etc but the pf of the load is not known before that which
types load (resistive,inductive or capacitive)to be
connected across the suplly, this is only why the
transformers and Alternaters are rated in kva and it is
meaningless discuss about iron loss & copper loss because
the UPS and inventers are also rated in kva.
| Is This Answer Correct ? | 10 Yes | 1 No |
Post New Answer View All Answers
Dears we deal in Chemical are Plate earthing. Kindly call if any requirement and questions. Tech Earth Solutions Mohit Verma 8791071007
How to measure current and voltage in an ELV circuit
condition Autotrip facia come on control panel of electrical transmission line?
What’s electric traction?
What is the function of RCBO? What are the different sensitivity ratings & each application?
how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING) I O (current operating)?
What will be the impact on motor performance if a LT motor is rewound with changed motor winding data as given below:- Original winding data: total 04 wires = 02 wires of 17 SWG + 02 wires of 16.5 SWG. Changed Winding data: total 03 wires of 15.5 SWG wire size Motor rating: 160KW, 740RPM, 415V, ID FAN application. Normal Running Current = 95% of FL Current.
Dear friends, i would like to know that what is the exact function of 'exciter winding' & 'aux winding' in Alternator?
What are the three constants associated with a steady state error?
What is power factor why we should maintain the power factor unless what will happen
State the factors, for the choice of electrical system for an aero turbine.
Explain the terms real power, apparent power and reactive power for ac circuits and also the units used.
what is the generator rating for 40 amp load of 3phase motor.?? 400v voltage of generator... plz tell me with formula its urgent...plzzz... and also tell me that this 40 amp at all phases mean 40 amp on red,40 amp on yellow,40 amp on blue...... or the total sum of that 3phase is 40 amp....
What is the effect on 3phase induction motor if current setting knob of DOL kept at minimum current?
number of I/O devices in siemense plc
