The ratio of dielectric stress of the on the cable corresponding to – McqOptions

MCQOPTIONS

1.	The ratio of dielectric stress of the on the cable corresponding to the maximum and minimum is ____________
A.	R/r
B.	r/R
C.	rR
D.	(R/r)2
Answer» B. r/R

Discussion

No Comment Found

Related MCQs

Dielectric power loss of a transmission line cable operating for ‘V’ volts, ‘f’ Hz having a capacitance of ‘C’ Farads with the tangent loss angle of δis ____________
Consider a system having a cable of capacitance 5 nF, with 765 kV star connected at 50 Hz having a power loss in the cable as 82.1 kW. Then the dielectric loss angle is _________(in degrees).
The resistance of the insulation used for the cables is 40 ohms for a length of ‘x’ km. If the proposed plan needs to extend the transmission line cable to extra ‘2x’ m then the resistance of the cable offered will be _____________ (in ohms).
Grading of the cables is performed in order to achieve ____________(i) uniform stress(ii) reduction in quantity of insulation(iii) reduction in quality of insulation
The condition at which the minimized dielectric stress condition (R/r) will take place is ______________
The ratio of dielectric stress of the on the cable corresponding to the maximum and minimum is ____________
For a transmission system of voltage ‘765 kV’ volts having the core radius of ‘5’ cm and outer radius of ‘0.40’ m. The maximum dielectric stress on single core cable is _________
Single core cables for ac systems are provided with armouring.
Single core cables for AC systems are not provided with armouring.