Power System Analysis and Design (MindTap Course List)
6th Edition
ISBN: 9781305632134
Author: J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher: Cengage Learning
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Write True or False and correct the wrong statement (Ans
7. The unit nearest to the cross-arm in tower has maximum voltage
across it and hence it likely to be repaired.
8. Corona losses in DC Transmission supply 10 times more than
AC transmission.
9. Irregularity Factor (mv) has value of 0.9 to 0.95 in rough
conductor.
10.Power losses in corona dissipated in the form of conductor
vibrating.
11. The corona loss on a particular system at 50 Hz is 1 kW/Km per
phase but for the same system but 60 Hz will be 1.5 kW/Km per
phase.
12.If the number of poles in 3ph 11kV transmission line is 80, then
we need 420 discs to suspend the conductor on these poles.
A circuit breaker is rated as 132 KV, 4000
MVA. What will be the Asymmetrical
breaking current capacity if DC component
is assumed to be 70% ?
Explain the concept of symmetrical and unsymmetrical faults in power systems. How are these faults analyzed, and what protective measures can be implemented?
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- estion 9 The fault current level of a circuit breaker used in a transmission line with phase voltage 2.2 kV and breaking capacity 50 MVA is yet ......kA. vered -ked out of Flag question estion 10 The voltage between lines in a transmission line is the maximum value of the sine waveform. yet vered Select one: -ked out of O True Flag question O Falsearrow_forwardWhat are the values of the load and line regulation for the circuit shown?arrow_forwardThe parameters of the _________equivalent circuit are defined in general terms for any operating conditions. a.hybrid-pi b.hybrid c.re d.piarrow_forward
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Power System Analysis and Design (MindTap Course ...Electrical EngineeringISBN:9781305632134Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. SarmaPublisher:Cengage Learning
Power System Analysis and Design (MindTap Course ...
Electrical Engineering
ISBN:9781305632134
Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:Cengage Learning