Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / mahmood ahmed
Earth affects the calculation of capacitance of three-phase
lines as its presence alters the electric field lines.
Usually the height of the conductors placed on transmission
towers is much larger than the spacing between the
conductors. Therefore the effect of earth can be neglected
for capacitance calculations, especially when balanced
steady state operation of the power system is considered.
However for unbalanced operation when the sum of the three
line currents is not zero, the effect of earth needs to be
considered.
| Is This Answer Correct ? | 6 Yes | 2 No |
Post New Answer View All Answers
I am having a 42KW 3 phase electrical heating furnace, heating element is 80/20 nichrome material, my connections is made in such a way that 2 star connection compromising 2 coils per phase so totally 12 coils, shall if i use it unbalanced star condition (instead of 2 group of 3 phase or 1 group of 3 phase, connecting 4 phases of 5 phases) what will be the consequences and is it acceptable?
If not into production, how far did you follow the design and why did not you see it into production?
What is the ratio of true power to apparent power in an ac circuit?
Air circuit breaker safety
why transformer tank is in rectangular shape what happen when it is in step shape
what is the safty of poly phase tranformer?
what is meant by vector group of a transformer? How can it be derived?
What is the difference between electrical earthing and electrical grounding?
Can we convert off line transformer to on line transformer
What is the operating principle of turbo-generator.
how to find ratio of CT & PT in 66/11kv 12 mva supply system ? explain with calculation.
what is earthing transformer? draw the winding dia.of earthing transformer.
What are the types of control system?
what is ground fault in ACB?
what is the k var ratting of 1250kva
