Answer Posted / essam s. salib
Uo in under ground cables is the voltage between any phase and the sheath surrounding the cable, while Uo in OH lines is the voltage between any phase and the ground through the line stray capacitance.
U is the voltage difference between any two phases either cables or OH lines.
Um is the maximum operating line voltage between phases
| Is This Answer Correct ? | 1 Yes | 1 No |
Post New Answer View All Answers
Why can't we take NO LOAD TRIAL of motors having V1 mounting??
List the disadvantages of constant k filters?
In what cases (circumstances)we should apply P controller, PD controller, PI controller & PID controller ?
The loads are connected with phase and ground then why current flow as the loads ?
Is there any standard guidelines/Criteria to design NGR/NGT.?
describe the Tranformer testing procedure
we have amp, voltage, kw, length detail then how to calculte copper & alluminium size of conductor of 3-phase induction motor
is there any chart showing the suitable cable size according to AMP and length ? for three phase motors
what are the things that can cause a three phase motor to crawl?
How to decide CT & PT ratings for a given transmission line carrying some rated voltage?
What should be the length of transmission line so that we can see/obtain the full sine wave of voltage??
Comparision of Air break circuit breaker, SF6 Circuit breaker and vacuum circuit breaker.
what should be the acceptrd value of winding resistance for 2.5MVA transformer
Explain thin film resistors and wire-wound resistors
How does HT work & Voltage required?