in india are trains run by DC or AC? if DC ,
from where it receives negative potential? because
pentograph receives singe potential only?
Answers were Sorted based on User's Feedback
Answer / sudhansu
train gets negative potential from the track line.
| Is This Answer Correct ? | 14 Yes | 0 No |
Train receives 25kV Ac line only. Inside rectifier convert
ac to dc.
| Is This Answer Correct ? | 2 Yes | 3 No |
which fault current is maximum: 3 phase short circuit, LG, LL or LLG?? why?? in one of the problems that i have solved, 3 phase short circuit current on an unloaded generator came out to be less than the LG fault current. can anybody please explain why.
Why temperature rise is conducted in bus bars and isolators?
what are iron and copper losses
how to reverse the direction of universal motor?
What is the technical difference between IS:1554 and Indian Railway IRS:S63/2007
What are your personal skills and abilities for such a Master Course and your possible preparation to undertake this course?
What are the protection schemes used for protection of transformers ?
3 Answers Engineers India Limited,
Why we use RYB phase sequence?
sail kaott diploma ece ke interviw me qus.kis parkar ke aate hai aur G.S me kya puchate hai kya sameedyaan me kis parkar ke qu.puchate hai
What is 2P*0.5 sqmm screened copper cable and what is the use of it..?
A 230V dc shunt wound motor has an armature resistance of 0,15Ω.When operating on no load at 650 rev/min the armature current is 6A . The motor takes a full load current of 85A. Calculate the full load speed if the field flux is (i) maintained constant (ii)reduced by 0,03
A three phase transformer 460v primary 220v secondary (three phase four wire system.) Why did we get 460 volts across the neutral on the secondary side?
Civil Engineering (5086)
Mechanical Engineering (4456)
Electrical Engineering (16639)
Electronics Communications (3918)
Chemical Engineering (1095)
Aeronautical Engineering (239)
Bio Engineering (96)
Metallurgy (361)
Industrial Engineering (259)
Instrumentation (3014)
Automobile Engineering (332)
Mechatronics Engineering (97)
Marine Engineering (124)
Power Plant Engineering (172)
Textile Engineering (575)
Production Engineering (25)
Satellite Systems Engineering (106)
Engineering AllOther (1379)