Download GTU BE/B.Tech 2019 Winter 7th Sem Old 170905 Advanced Power System I Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Winter 7th Sem Old 170905 Advanced Power System I Previous Question Paper

1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ?VII (Old) EXAMINATION ? WINTER 2019
Subject Code: 170905 Date: 23/11/2019

Subject Name: Advanced Power System - I
Time: 10:30 AM TO 01:00 PM Total Marks: 70

Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

Marks
Q.1 (a) Classify FACTS devices and enlist the advantages of FACTS devices. 07
(b) Explain various types of links used in HVDC systems with necessary diagrams. 07

Q.2 (a) Explain effect of shunt compensation and series compensation on power transfer
capacity of transmission line.
07
(b) Explain conventional methods of real power control in the transmission line. 07
OR
(b) Discuss in brief various sources and sinks of reactive power in power system. 07

Q.3 (a) For a lossless distributed parameters lines, derive the below equation of power
flow from sending end to receiving end.
a Z
V V
P
R S
?
?
sin
sin
0
?
07
(b) Discuss the advantages of HVDC systems. 07
OR
Q.3 (a) Explain the operating characteristics of saturated reactor with schematic
diagram.
07
(b) What is synchronous condenser? Discuss its application. 07

Q.4 (a) Explain the application of various apparatus required for HVDC substation
with neat schematic diagram.
07
(b) Discuss the operating characteristic of IGBT. Explain the advantages of IGBT
over SCR for HVDC converter.
07

OR
Q.4 (a) Discuss features, advantages and application of an HVDC-VSC system with
single line diagram.
07
(b) Explain working of 6 pulse converter. 07

Q.5 (a) Explain operating characteristics of TCR. 07
(b) Explain the causes and consequences of harmonics in HVDC system. 07
OR

Q.5 (a) Prove that power transmitted by bipolar DC line is same as that of 3 ? phase
AC line with necessary assumptions.
07
(b) Explain extinction angle control. What are its limitations under asymmetrical
fault?
07

*************
FirstRanker.com - FirstRanker's Choice