The corona effect can be minimized by increasing

DGVCL Exam Paper (11-12-2011)
The corona effect can be minimized by increasing

Diameter of the conductor

Both spacing between the conductors and diameter of the conductor

The length of the conductor

Spacing between the conductors

Diameter of the conductor

Both spacing between the conductors and diameter of the conductor

The length of the conductor

Spacing between the conductors

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DGVCL Exam Paper (11-12-2011)
Permittivity is expressed in terms of

Farad/m

Weber /m

farad/sq. m.

N/m

Farad/m

Weber /m

farad/sq. m.

N/m

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DGVCL Exam Paper (11-12-2011)
If the voltage at the two ends of a line are 132 kV, and its reactance is 40 Ω, the stability limit of the line is

500 MW

435.6 MW

217.8 MW

251.5 MW

500 MW

435.6 MW

217.8 MW

251.5 MW

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DGVCL Exam Paper (11-12-2011)
The insulation coordination for UHV lines (above 500 kV) is done based on

Voltage level of the line

Lightning and switching surges

Lightning surges

Switching surges

Voltage level of the line

Lightning and switching surges

Lightning surges

Switching surges

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DGVCL Exam Paper (11-12-2011)
The bus bar zone faults are generally

Three phase short ciruits

Phase to phase faults

Single line to ground faults

Double line to ground faults

Three phase short ciruits

Phase to phase faults

Single line to ground faults

Double line to ground faults

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DGVCL Exam Paper (11-12-2011)
Distribution transformers have good all day efficiency due to

Low voltage

Low iron loss

Low copper as well as iron loss

Low copper loss

Low voltage

Low iron loss

Low copper as well as iron loss

Low copper loss

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DGVCL Exam Paper (11-12-2011)

DGVCL Exam Paper (11-12-2011) The corona effect can be minimized by increasing

DGVCL Exam Paper (11-12-2011) Permittivity is expressed in terms of

DGVCL Exam Paper (11-12-2011) If the voltage at the two ends of a line are 132 kV, and its reactance is 40 Ω, the stability limit of the line is

DGVCL Exam Paper (11-12-2011) The insulation coordination for UHV lines (above 500 kV) is done based on

DGVCL Exam Paper (11-12-2011) The bus bar zone faults are generally

DGVCL Exam Paper (11-12-2011) Distribution transformers have good all day efficiency due to

DGVCL Exam Paper (11-12-2011)
The corona effect can be minimized by increasing

DGVCL Exam Paper (11-12-2011)
Permittivity is expressed in terms of

DGVCL Exam Paper (11-12-2011)
If the voltage at the two ends of a line are 132 kV, and its reactance is 40 Ω, the stability limit of the line is

DGVCL Exam Paper (11-12-2011)
The insulation coordination for UHV lines (above 500 kV) is done based on

DGVCL Exam Paper (11-12-2011)
The bus bar zone faults are generally

DGVCL Exam Paper (11-12-2011)
Distribution transformers have good all day efficiency due to