What, in the construction of a transformer, controls KVA?
For example 600/208/120 V transformer can be 10kVA or
45kVA!!! What do we change in the construction of a
Transformer in order to change the rating but not the
voltage.
Answer Posted / sambalpur
If Kva rating it's depends upon the temp up to which it can whistand
Generaly 75'c
For more Kva more current so more copper
Nd for same copper with increasing Kva cooling needs to be change ie OnAn to OfAf
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
What is the important precuations need tocarried out while working with Electrolite in Battery PM?
what is the effect of back reactive power on the generator ?
how we findout a ignater is faulty or not?
how to calculate regulation constants for over head lines? and what are the regulation constant for raccoon conductor at different voltage level and different P.F?
what precautions to be taken while desigining a LT,HT panel. Eg-LT panel PCC panel with ACB installed. HT panel VCB panel with VCB installed. & what is main diffrence betwn IP54 & IP55 construction of panel.
what is the calculation involved to design the heater to heat 10KL of water in temperature control unit?
what is working process of star delta controlling circuit ?
Air circuit breaker safety
the grid connection required for a 50 MegaWatt fotovoltaic powerplant is higher or lower than 35kv (high or medium tension)?
Why is negative feedback invariably preferred in closed loop system?
What facility we get after CT secondary earthing and how?
In PFI plant one stage capacitor connection is directly connected(with out megnetic contact controll). but why?
dear sir, i completed diploma in electrical in 2005, how i can get electrical supervisor liance in mumbai
1.what is the difference between transformer differential and busbar differential.2)why we are using 2 slope for trafo diif and 1 slope for busbar diff.3)what is the purpose of metrosil and stabilizing resistor in high impedance relay circuit.4)how metrosil reduce the peak volage.5)what is the funtion of stabilizing resistor
A 7 storey building has a floor area of 35,000sq.ft on each storey. On the ground floor 11KV electrical sub-station is to be erected. A load of 3kw for every 400sq.ft (p.f is 0.8) is proposed for each floor. fire pump 7.5hp, water pump 5hp, lift 2 nos, each 10hp and 20shop load of each shop is 5kw. calculate a. load each floor b. total load of building c. L.T feeders for aech floor and from transformer to main. d. distribution diagram e. capacity of sub-station/capacitor bank f. line diagram