Why the transformers are rated in kva?
Answer Posted / vivek
the limiting factor in transformer loading is voltage and
current , so , specifying a transformer in KVA with a given
primary and secondry voltage gives he maximum loading
current in both the sides. coupled with the transformer base
impedence , it also gives the regulation and losses at any
load .
| Is This Answer Correct ? | 4 Yes | 3 No |
Post New Answer View All Answers
what is mean by Digital Logic Meter (DLM)
Define delay time.
A 400 V, 50 Hz, Δ connected synchronous generator has a field reactance of 0.1 Ω and armature resistance of 0.015 Ω. At full load, the machine supplies 1200 A at 0.8 pf lagging. Under full-load conditions, the friction and windage losses are 40 KW and the core losses are 30 KW. What is the machine’s overall efficiency? Ignore any field circuit losses.
what are the possible reaons & remedies if resistance of NGR getting heat up
If a high resistance fault occurs,then what are the changes will happen in the system?
What will happen if we introduce negative feedback to a control system that uses a positive feedback?
Why single phase induction motors are not self starting ?
Please explain, how to test vector group of tranformer(Delta y1) . Thank
Bimetal strip used in overload relay what is that,which types of material used for that & percentage.
what is basic difference betmeen normal & flame proof motor??
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?
what are the different sizes of U.G. cable & where these cabl;es are used according to voltage ..
in basic 2 phase will short means tripping the power but spot welding 2 phase shorting but not tripping it will welded why.....(Q)
What is notching in dc machine?
in cvt,there are two windings,1a,1n and 2a,2n.in my one project i use only one winding i.e.1a,1n. the other winding is not in use, so i connect it in open delta and want to close it by ibsertibg thermal resistor. the output of cvt is 132kv/115/sqrt3. plesae tell me exact value of resistor, so i may close it to avoid the resonance phenomenin. send me answer on this email adress please. aetcon-po@aetcon.com