why is the rating of transformer done in kva and not in kw.
Answer Posted / ravi
transformer losses are in terms of current and voltage only
i.e (I Square R) copper loss and VI is the Core loss. i.e y
units are in KVA
Is This Answer Correct ? | 3 Yes | 1 No |
Post New Answer View All Answers
what is the difference between earth leakage and earth fault?
Sir, My doubt on cable sizing calculation, Load:74 KW calculated cable 1 run 50mm2. Now client asking us to reduce cable size by increasing runs. Sir, My question now when my mind strikes with 2 options 1) Divide load 74/2 = 36 and calculate cable for 36+36 making it 2 runs or 2) Simply i can divide 50mm2 /2 ie. 2 runs of 25mm2 Please suggest me sir
What is K-rated transformer? What is the use of it? What can be the size(pls provide calculation if possible) of K- factor transformer for 550kW,690V motor operating with drive (VFD)?
What is difference between unity power factor wattmeter and upper power factor wattmeter? In short circuit test of transformer the wattmeter used is unity power factor type or upper power factor type wattmeter?
how freewheeling diode improves the powerfactor
Difference between HRG and NGR. Are they both the same thing
Is it possible to obtain 480v or 550v in single phase output by giving the input to 230v to a single phase torodial type transformer without using a stepup transformer?
if you are in a software company,then why do you want to come in a core company like sail, ntpc(where lots of trouble like tension but you have a good life in a it company) ?
what is sevice settings for mccb?How can be it setted?
what is RFCT and Insulgard Relay & It's function?
Hi My dear all Friends, There is a question regarding HVAC Engineering and widely used in Power Projects. Question- What is the diffrence Between REF, SEF and Differential Protection....???? Where REF - Restricted Earth Fault SEF - Senstive Earth Fault.
Ceiling Fan and Storage type water heater. Discuss
Can double compression glands be used with regular cables?
Best way to measure the Soil resistance of rocky soil, three probe method and four probe method
What is the use of mc( moving coil) in dc voltmeter and dc ammter and what is the use of ( moving iron)in ac voltmeter nd ac ammeter