Answer Posted / nitesh sharma
Aashish kamal: there is nothing related with corona effect, potential gradient simply is what mr. sunil das said that it is potential drop per unit length or potential difference per unit length. potential gradient is also known as CABLE RATING of XLPE /PVC cables. This potential drop or difference is depends many other factors like transmission voltage through the cable, cross section area of cables, temperature and also on the no. of runs of the cable to transmit the supply voltage etc etc.. This potential gradient is likely to be approx 2 or 2.5 but in the case of cables having smaller cross section area it is reached upto 4 or 4.8 but for the cables having larger cross section area we ignored this factor as it is approx 0.
| Is This Answer Correct ? | 3 Yes | 1 No |
Post New Answer View All Answers
Cables Construction hi friends, 0.6/1/1.2 kV LV , DC and Control cables are concentric copper conductor what does its means and what is the use of concentric copper conductor,and are this with copper tape shield or copper screening, ? thanks
if the load is 80 amp for main fuse and 100 amp for breaker so how can we calculate the cable size (cooper ) .
What is mathematical model of a control system?
how tto ingress mw in turbine explain.procedure ?
In siemens PLC, why do we want to move the data ?
What are the types of excitation system?
For an induction motor wat is the loading/unloading cycle duration or interms of L/UL ratio/ percentage?
what is the use of the puls transformer in UPS & how it works???????????
Why reactive power is needed in a power system? How is it being absorbed or delivered by alternators? For reactive power control we are changing excitation but reactive power absorbing or delivering related to stator. How these two are interlinked? i want a detailed explanation with necessary expressions and figures?
How to calculate wire length,size & current? ( related to control panel)
How are load losses and no-load losses measured at site in a DG set?
what is meant by 3rd hormonics ?
What is the breaking capacity of transformer and how can we calculate the breaking capacity of tranformer
what are safety measures in /control in diesal engine/ explain them?
What is the basic principle of operation of alternators/dc generators?