Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / ashok bhatnagar
The current drawn by a transformer depends on the load
connected in the secondary. If the load cneected is a
resistive load the majority of current drawn is in pahse
with the supply voltage and transformer operates at near
unity power factor. In this case transformer supplies kw
nearly equal to its kva input. However if a inductive load
like motor is connected it draws lagging current and
operates at lower power factor. In this case trasformer
supplies lower kw as compared the kva drawn. Thus
powerfactor of a trasnformer depends on type of load
connected and hence it can not have defined kw rating. That
is why transformers are rated in KVA and not KW
| Is This Answer Correct ? | 10 Yes | 1 No |
Post New Answer View All Answers
What is the approximate value of stacking factor?
if 12v battery get discharged for 2 months after if we put charge it will charge again?how much time it will take to charge?
Why is a plain induction motor unsuitable for wide speed control?
HOW TO SELECT THE COPPER CABLE SIZES OF MOTORS,TRANSFORMERS?
in the case of 6.6kv motor starter combination contain fuses on it VCB. but in 11KV motor starter combination Fuses are not using in it's VCB why?
Why it is possible to use PWM with a STATCOM and not with a conventional TCR based SVC
Mr. mohh sahid m not satisfied for ur answer to the que weather the size of transformer increases or decreases withchange in fr for more detail go to the answer given by me
What is Control & Relay Panel? And Remote Control Center?
how is the cable tray designed & how its total length is calculated for an Industrial plant Say for Ex. (500KW Motor Load)
Define resonant frequency?
what is the difference between b c d curves on mcb
how is the incoming cable size calculated for a given current rating of a panel??
What is the rate of WCT on the Electrical Contracts comprising of DG Sets and Civil Works in Delhi ?
what happen if drive input fail momentry at 48.5 HZ frequency?
how can we design robots
