why designer use kva rating instead of kw in transformer
rating???????????????
- 9 Answers
- 17165 Views
- I also Faced
- E-Mail Answers
Answer Posted / integratorman
Transformer losses are related to the efficiency of the
transformer. The Power factor of a transformer depends on
the load attached to it. if that load is resistive, power
factor is usually considered 1, in which case KVA = kW. if
the load is inductive or capacitive, then power factor
should be taken into consideration when sizing the
transformer.
Hence the transformer is designed for voltage and current
output(VA) - how you apply the transformer determines how
many watts there is in the circuit.
| Is This Answer Correct ? | 23 Yes | 3 No |
Post New Answer View All Answers
What is the role of power pack in substation protection system?
What is mean by hot and cold loop testing?
why in an industry; machine having rated 200 h.p stopped after power factor is maintained above 0.97 lag by control panel in view-of energy saving
What is the function of attenuator in cro?
I HAVE A INCOMING 100A MCCB TPN 25KA, CABLE LENGHT OF 80M 70MM CABLE SIZE FROM MAIN SUBBOARD TO NEW DB.BASE ON THE FAULT LEVEL SETTING OF 45KA.I WOULD LIKE TO FIND OUT 25KA ENOUGH KA. APPRECIATE IF SOMEBODY CAN ASSIST ME WITH FORMULA FOR THIS. FRM: JEFF
What is the difference between PS & metering CT (5p20,0.5 etc.)? Why in PS class CT only Vk is given ? Is PS class CT is more accurate than metering CT?
upto how many load can v connect to stabilizer which is used for tv
What is resistance reading of earth copper rod with grid and without grid?
RESPECCTED SIR/MADAM- I AM PRERING FOR SECTION ENGINEER (ELECTRICAL) RRB CHANDIGARH PLEASE SEND ME SOME PREVIOUS YEAR QUESTION PAPER OR MODEL PAPER.MY EXAM IS ON (30- NOVEMBER 2008).I AM VERY THANKFUL TO YOU. FROM- HARENDRA SINGH YADAV
what is dc mator?types of dc motor?losses in dc motor?what is the mechanical,electrical and commercial efficiency of a dc motor?
How to do stting of vl250 siemens MCCB
High speed earth switch operation with diagram
How to calculate per unit impedance of transformer?
What is the function of NGR for the parallel operation of alternator? whats happen when different rating of alternator are running with parallel?
pls,send the previous year written test questions.
