Answer Posted / sivasubramanian
U0 is the r.m.s. value between any insulated conductor and
earth , i.e. metal covering of the cable or the surrounding
medium;
U is the r.m.s. (root mean square voltage) value between
any two phased conductors of a multicore cable or of a
system of single core cables.
Is This Answer Correct ? | 54 Yes | 3 No |
Post New Answer View All Answers
Explain with example of functional requirements of protection relay in terms reliability, selectivity, sensitivity
what are the tests comes under the type test, what tests comes under routine tests.
determine two methods to find loose connection in operational electrical system?
My question is whether bellow formula is correct to find bus size for 46kA for 0.5 second & what is RT in bellow formula. formula to calculate the size of busbar to withstand the thermal stresses due to currents with duration of 0.2 sec to 5 sec. Sp = RT( I x I x t) / K Where Sp – is the cross sectional area of bus bar in millimeters. I - is the value of AC fault current. t - is the operating time of disconnecting device in seconds. K – is the factor depending on the material of the conductor, insulation and initial and final temperature. Value of ‘k’ for copper is 143.
magnetizer priciple
what are the maximum available current, voltage ratings and switching speeds of the power electronic devices thyristor, power mosfet, igbt, and mct?
What are the necessary components of the feedback control system?
What happens to a motor if it is connected in Delta connection
What are PLC leader logic program method
What is the previous name of Cox's Bazar
what is negative and zero impedance in 3 phase induction motor ??
On what basis do you decide the ONAN (Oil Natural air natural) or Dry type transformer for a project?
If SFU is Switch Fuse Unit, What is the expansion for FSHF in Electrical Engineering?
What is the maximum breakdown voltage of 11KVA and 66 KVA power line and how it is calculated?
How Load Factor, Demand Factor, Diversity Factor etc best applied in designing an electrical circuit? Is it allowed to consider these factors in each and every panel in an electrical distribution system? Can any body suggest a good book for reference?