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Power Systems

Power Systems
A 3 layer, total diameter of an ACSR conductor is 5 cm. Find the diameter of each strand?

 15 cm
 1 cm
 1.5 cm
 5 cm

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Power Systems
The essential requirement(s) for power plants to be operated as peak load plants are

 Capability of quick starts.
All of these
 Low capital cost.
 Quick response to load variation.

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Power Systems
In transmission lines distribution constants are

 resistance
 inductance and capacitance
 both 1 and 2
 inductance and resistance

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Power Systems
Find the value of a729, where "a" is the operator

 α²
 0
 1
 α

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Power Systems
The neutral of 10 MVA, 11 kV alternator is earthed through a resistance of 5 ohms. The fault ready is set to operate at 0.75 A. The current transformers have a ratio of 1000/5. What is the percentage of the alternator winding is protected?

 15%
 88.2%
 85%
 11.8%

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Power Systems
Equal area criterion gives the information regarding

 absolute stability
 swing curves
 relative stability
 stability region

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