B.TECH - Semester 8 hvdc and facts Question Paper 2013 (apr)
Practice authentic previous year university questions for better exam preparation.
Sample Questions
- What is FACTs devices?
- How the shunt and series compensators are connected in a transmission line?
- List out the parameters that control the power flow in a transmission line.
- Enumerate the objectives of shunt compensation.
- Draw the VI characteristics of TSC.
- Draw the circuit diagram of GCSC connected to a transmission line.
- What are the objectives of combined series-shunt compensation?
- What are the factors to be considered for planning HVDC transmission?
- List any two types of power devices used for HVDC transmission.
- Draw the block diagram of bipolar link. $$ (10 \times 2=20 \text { Marks }) $$ Answer one full question from each module. Each question carries 20 marks.
- (a) Obtain the expressions for power flow between two buses in a transmission line.
- (b) Why the interconnections are needed in transmission lines?
- (a) Explain the power angle characteristics of a transmission line in terms of its line reactance.
- (b) Draw the circuit diagram of shunt compensator with storage device and explain the function of each component.
- (a) With neat circuit diagram, explain the principle of operation of STATCOM with its V-I characteristics?
- (b) Explain the operation of TCR with the help of its V-I characteristics.
- (a) With neat circuit diagram, explain the operation and control of SVC connected to a transmission line? Draw the voltage and current waveforms.
- (b) Differentiate between TCR and TSC.
- (a) Derive the expression for real and reactive power of unified power flow controller.
- (b) With neat circuit diagram, explain the operation and control of TCSC connected to a transmission line. OR 2
- (a) Explain the working of TSSC with the aid of neat circuit diagram. 15
- (b) What are the objectives of series compensation? 5
- (a) With neat schematic diagram, explain the functions of various components available in a typical HVDC converter station.
- (b) Explain the power flow control in a DC link.
- (a) Derive the expression for average dc voltage of a 3 phase, six pulse graetz circuit without overlap.
- (b) Write the principle of HVDC breaker. ( $4 \times 20=80$ Marks)