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
Can anyone tell the proper diagram of star delta starter????
Does outdoor isolator loose connection cause short circuit current in that circuit? if yes then how ??
if 6 earth pit value is 1.5 ohm then what should be the number of earth pit to make the value .8 ohm
Block diagram of Power line communication?
in ring main system we use the isolater b/w transfer bus and main bus if we r not use isolatar than wat will be the effect in our sys.
what is relay what is protection & contact multiplying relays where it is used function in brief
In both 600/1000 V cable and 450/750 V cable, we can supply 415 V. However for distribution, all utilities are using only 600/100 V instead of 450/750 V. What is the reason?
State angle criterion.
What tests should i carry over on a newly rewinded DC Generator with voltage rating of 38 volts and current rating of 350 amps, to certify that the machine is OK?
why booster transformer is used in sumpners test conducted on transformer????
can we synchronize star system generators with delta system transmission line ? and how ?
In siemens PLC, why do we want to move the data ?
When we connect the large capacitor bank in series ?
tan delta equation test on alternators
What are the parameters of water ( Water quality )to be monitored in Centralised HVAC ( water cooler chillers )