HVDC power model can be summarized as: Generation, Stepping, rectification, Transmission, Inversion, Stepping Generation, Stepping, Transmission, rectification, Inversion, Stepping Generation, Stepping, Transmission, Inversion, rectification, Stepping Generation, Stepping, Inversion, rectification, Transmission, Stepping Correct answer: 1. Generation, Stepping, rectification, Transmission, Inversion, Stepping
Power factor of HVDC transmission lines is: 0.5 0.9 0.95 1 Correct answer: 4. 1
Compared to HVAC transmission, the HVDC transmission is _______ less expensive: 18% 33% 44% 67% Correct answer: 33%
Low power factors in transmission lines: Causes more voltage drops Has poor voltage regulation Demands more rating of equipment All of these None of these Correct answer: 4. All of these
Modeling of long transmission lines is done through: Nominal T method Nominal Pi method Rigorous method End condenser method Correct answer: 3. Rigorous method
Series capacitors on transmission lines are little to none handy when: Load has high VAR requirement Load has medium VAR requirement Load has small VAR requirement Any of above Correct answer: 3. Load has small VAR requirement
Effects of capacitance are neglected in: Short transmission lines Medium transmission lines Long transmission lines 1 and 2 Correct answer: 1. Short transmission lines
Ferranti effect is referred to: Decrease in voltage at receiving end Increase in voltage at receiving end Same voltage at receiving end None of these Correct answer: 2. Increase in voltage at receiving end
A transmission line spanning 240 km is classified as: Short transmission line Medium transmission line Long transmission line Correct answer: 3. Long transmission line
A 20 km long transmission line is classified as: Short transmission line Medium transmission line Long transmission line Correct answer: 1. Short transmission line