In step down transformer (415/200V),mistakenly secondary
side is connected to 415V for some hours, what would be
result of this condition?
- 19 Answers
- 24172 Views
- Essar, GAIL, Vizag Steel, I also Faced
- E-Mail Answers
Answer Posted / rvg
The current at 200v side will be more than what designed
for the transformer and core loss will be more. So
ultimately,transformer will be heated up more faster than
ordinary condition. Depends upon the insulation used for
core construction, and how long u are connected the supply,
there r chances of insulation failiure.
| Is This Answer Correct ? | 11 Yes | 1 No |
Post New Answer View All Answers
what is the solution for meger test failed the MV cable?
mention hazard experienced during installation
What are the basic elements used for modeling mechanical rotational system?
We have drive feeding an output contactor for a 5000 hp motor @ 5kV application. The motor FLA is 629amps x 1.25% service factor = 786.25 amps The cable that we current have in place between the drive and the output contactor is 350kcmil- MV-105 (parallel cables). Per the NEC table 310.60 (C) (69). This show the cable ampacity is at 615 amps per cable for a rating of 1230 amps. We have derated the cable for the cable tray and the multiple cables application and our calculations show that after the correction factor factor we are at 922amps. 1230 amps x .75% correction factor factor = 922.5 amps. The customer is driving us to then use another safety factor of .25% off of the already derated cable. Can you please provide a longhand calculation for your solution on this application?
How phase displacement change in the over current relay coils.
How to checked frequency drive output voltages?
What are your personal skills and abilities for such a Master Course and your possible preparation to undertake this course?
What is tranformer differtial?
How can we convert 11 kv to 440 volt without using transformer ?
What are the transformer losses?
How to calculate that clean water supply in one Day from 150 KLD STP?
should %impedance be high or low in a power transformer? if so why?
sir vizag steel ka junior trainee ka paper kitne number ka ayega
how is working bearing heater?
working principles of cf lamp,incandescentlamp and f lamp?
