MCQs of Substations (Power System - I - 3140914)

Showing 91 to 100 out of 103 Questions

91.

What is the minimum phase to phase clearance required for 400 kV conductors in substation?

92.

Which of the device is a carrier communication device?

93.

Which of the following busbar arrangement is generally employed in distribution system?

(a)	One and half breaker arrangement
(b)	Main and transfer arrangement
(c)	Ring main arrangement
(d)	Single busbar arrangement

94.

Earthing conductivity in a substation is affected by

(a)	Moisture content in the soil
(b)	Chemical composition
(c)	Concentration of salts in the soil
(d)	All of above

95.

Emulsifier protection is associated with

(a)	Grounding protection
(b)	Dielectric strength protection of cables and conductors
(c)	Lightning protection
(d)	Fire protection

96.

The size of gas insulated substation is significantly small compared to conventional substation because of

(a)	High electronegative property of SF₆ gas
(b)	High dielectric property of SF₆ gas
(c)	High insulation property of SF₆ gas
(d)	All of above

97.

Which is the first equipment seen in the substation while coming from transmission system?

98.

Gas insulated substation is employed

(a)	Where there is less space available
(b)	For high altitude locations
(c)	In terrain region
(d)	All of above

99.

A bus coupler circuit breaker is utilized in a substation for

(a)	Joining the transmission line with station busbar
(b)	Joining main and transfer bus in a substation
(c)	Joining the generator with transfer
(d)	Joining the neutral of the generator with earth

100.

Which gas is used in gas insulated substation?

Showing 91 to 100 out of 103 Questions