B.TechSemester 72024-25Hvdc Ac TransmissionKEE072

Hvdc Ac Transmission (KEE072) - AKTU Question Paper 2024-25

B.Tech · Semester 7 · Free PDF Download

This is the official AKTU Hvdc Ac Transmission Previous Year Question Paper for B.Tech Semester 7, academic session 2024-25. Published by Dr. A.P.J. Abdul Kalam Technical University (AKTU/UPTU), Lucknow. Free PDF download — no login required.

Course:B.Tech

Semester:Semester 7

Session:2024-25

University:AKTU / UPTU

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Questions Asked in 2024-25

Hvdc Ac Transmission (KEE072) — extracted question text · 100 marks · 3 Hours

Section AAttempt all questions in brief. 2 x 10 = 20

a
Compare the power transfer capa city of EHV AC and DC systems
b
Explain the role of bundled conductors in high voltage transmi ssion?
c
Discuss the impact o f switching surges in EHV systems?
d
Explain radio interferenc e in EHV AC systems?
e
Discuss the role of creepage distance in EHV line design?
f
Discuss the impact of pollution on the performance of EHV lines?
g
Define firing angle in an HVDC converter
h
Name the three types of DC links used in HVDC systems. 4 K1 i. Distinguish between AC and DC filters. 5 K4 j. Discuss the role of smoothing reactor in HVDC system?

Section BAttempt any three of the following: 10 x 3 = 30

a
Describe the role of surface voltage gradient in corona form ation and power loss?
b
Discuss the potential effects of ferro-resonance on EHV syst em components
c
Explain why the efficiency of an impulse generator depend on i t s design and components?
d
Explain the reason behind the use of 6-pulse and 12-pulse co nverters in HVDC systems?
e
Explain the role of surge arresters in protecting HVDC syste ms from overvoltage

Section CAttempt any one part of the following: 10 x 1 = 10

a
Explain the concept of corona discharge in EHV transmission systems and its effects on system performance
b
Discuss the environmental and economic impacts of UHVAC syst ems compared to lower-voltage systems
a
Describe the properties of corona pulses and their effect on t h e performance of transmission lines
b
Describe methods to reduce ove rvoltages caused by switching operations in EHV systems
a
Explain the principle and desi gn of a voltage multiplier circuit for high DC voltage generation
b
Explain the importance of impedance matching in potential di vider system for accurate high-voltage measurement
a
Explain the role of rectifier and inverter in controlling th e power flow in a DC link
b
Explain the concept of overlap angle and its relation to sou rce inductance in HVDC system
a
Describe the types of MTDC sy stems and their configurations. 5 K 2
b
Explain the causes and effects of commutation failure in HVD C converters

Question text is extracted from the official AKTU question paper PDF above. Check the original PDF for equations, diagrams and complete wording. Extracted: 2026-08-23.

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