i have a 4 Mva transformer 34.5 kv / 480-277 v and i used 2 parallel 3200 amp bus duct for the secondary feeder using 3 ply of bus bar ( 3/8" x 5" ) as a common where the flexible link terminated and 6300 amps breaker for the main, the lower bus duct reaches 70 degrees and the upper bus duct reaches 55 degrees when i used thermal scanner. why the temperature is not balance when the load reaches 3600 amps.
No Answer is Posted For this Question
Be the First to Post Answer
what is the difference between power and distribution transformer?
32 Answers L&T, VJTI, Wenke Electricals,
we have provided 30 mA rccb to water cooler.but we feel shock in cooler body.what is the reason?
what is the difference betwteen overcurrent and short circuit fault?
what the good value of earth resistance test
what is the difference between UPS and INVERTER?
Draw torque - speed curve and load curve of induction motor? mark operating point ?
what is the reason for drop in freq. from 50 hz at generating side to 49.8 ,49.6 etc.at receiving side???
Why is it that polarization index type test is required for MV and HV motors and not for LV motors?
3 Answers La-Gajjar Machineries, Qatar Airlines,
How we calculate the average power factor if the one phase is lag and another one is in lead?
how to calculate the settings for shaft ct protn in hydro generators
What is an exciter and how does it work?
7 Answers FCUK, Lotte Chemical Titan, TATA,
i am trying to PSUs/govermeant jobs since last 2 years but still i m not success, plz help me.