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.
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.
Chapter14: Phase Failure Relays
Section: Chapter Questions
Problem 2SQ: What are the hazards of phase failure and phase reversal?
Related questions
Question
Transcribed Image Text: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.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 4 steps with 2 images
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.Recommended textbooks for you