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Transmission & Distribution

Transmission & Distribution
Which of the following equipment is used to limit short circuit level in a substation?

isolator
Lightning switch
Series reactor
Coupling capacitor

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Transmission & Distribution
In the interconnected system, the reserve capacity of the system

Increases
None of the listed here
Remains same
Decreases

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Transmission & Distribution
When the transmission voltage is increased, the line losses are

None of the listed here
Same
Decreased
Increased

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Transmission & Distribution
The cause of damage to the lead sheath of a cable is

chemical action on the lead when buried in the earth
mechanical damage
crystallisation of the lead through vibration
all of these

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Transmission & Distribution
Skin effect is noticeable only at _____ frequencies.

High
All
Audio
Low

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Transmission & Distribution
When the load at the receiving end of a long transmission line is removed, the sending end voltage. This effect is known as

Ferranti effect
Kelvin effect
Proximity effect
Skin effect

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