Answer Posted / naveenkumar
efficency=output/input*100
eg: your transfer full load current is 100A your consuming the 70A then
(70/100)*100=1/2*100=.7*100=70%.efficency.
life time of a transformer best 60% if u get 70% efficency t/f life time will reduce.if you going to 100 t/f is blusting
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
How you calculating the 30 Hp 3 phase AC motor of power what size of cable is used for this motor?
Define damping ratio.
What is systematic error?
Is it required to use Automatic transfer Switch in L&T panel board if we use AMF panel with DG set? How the single line diagram will be? Please forward the material to sreenu_207@yahoo.co.in
Explain mechanical rotational system?
how ups works ? various parts of ups and working principle
What is the formula to find out two phase active & reactive power
why we are not giving the zone 1 trip command to the master trip relay
How to control motor gearbox speed and friquency? If length of cable and dia given, how to measure the voltage drop?
hai friends i have BSNL JTO exam on next month so if any body have model question paper or give preparation tips to my mail id kumar4486@yahoo.co.in this will helpfull for my future .plz & thank u by kumar
Can you explain about TEE protection scheme?
why on delay timer used for fully automatic star delta starter?
explain why core loss of a transformer is almost constant under different load conditions when connected across a constant voltage and constant frequency.
How to test REF relay testing for LV panel as per Kahramaa standard?
Draw torque - speed curve and load curve of induction motor? mark operating point ?
