Power System Engineering Research World
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Polyethylene has very poor dielectric and ageing properties.
Anonymous Quiz
50%
A. Yes
50%
B. No
Pressure cables are generally not used beyond
Anonymous Quiz
20%
A. 11 kV
24%
B. 33 kV
28%
C. 66 kV
28%
D. 132 kV
Solid type cables are considered unreliable beyond 66 kV because

A. Insulation may melt due to higher temperature
B. Skin effect dominates on the conductor
C. Of corona loss between conductor and sheath material
D. There is a danger of breakdown of insulation due to the presence of voids

Answer: Option D
@power_system_engineering
The insulation of the cable decreases with

A. The increase in length of the insulation
B. The decrease in the length of the insulation
C. Either (A) or (B)
D. None of the above

Answer: Option A
@power_system_engineering

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The thickness of the layer of insulation on the conductor, in cables, depends upon
Anonymous Quiz
0%
A. Reactive power
0%
B. Power factor
73%
C. Voltage
27%
D. Current carrying capacity