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POWER SYSTEMS

Power Systems
A 3-phase transmission line operating at Vs = 400 kV and has ABCD parameters A= D = 0.8∠0°, B = 100∠°90 Ω, C = 0.5*10^-6∠90° â„§. Find Charging current under no load?

 0.144∠90° A/phase
 0.512∠90° A/phase
 1.144∠90° A/phase
 0.344∠90° A/phase

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Power Systems
A 3-phase transmission line operating at Vs = 400 kV and has ABCD parameters A= D = 0.8∠0°, B = 100∠90° Ω, C = 0.5*10^-6∠90° â„§. Find the shunt reactor required for compensating ferranti effect?

 1500 Ω
 500 Ω
 2000 Ω
 3000 Ω

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Power Systems
Installation of capacitors at suitable locations and of optimum size in a distribution system results in

 reduction of KVA rating of distribution transformers
All of these
 reduction in distribution power loss
 improved voltage regulation

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Power Systems
Ferranti effect occurs under

 any of the above
 full load
 half load
 no load

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Power Systems
A 3-phase transmission line operating at Vs = 400 kV and has ABCD parameters A= D = 0.8∠0°, B = 100∠90° Ω, C = 0.5*10-6∠90° â„§. Find the no load receiving end voltage?

 500 kV
 600 kV
 400 kV
 320 kv

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