B.TECH - Semester 8 hvdc and facts Question Paper 2008 (may)
Practice authentic previous year university questions for better exam preparation.
Sample Questions
- Explain principles of static VAr compensators and their applications.
- List the power factor correction methods in single phase systems.
- What are the benefits of FACTS technology?
- Why there is need of compensation in power systems?
- What are the types of converters basically used in FACTS devices and what are the differences between them?
- Draw the V - I characteristics of STATCOM?
- State the objectives of series compensation.
- Give the functional control scheme for a SSSC.
- List the types of applications for which RVDC are used.
- Define pulse number.
- What is constant-current control and constant firing angle control? ( $10 \times 4=40$ Marks) Answer any two question from each module. Each question carries 10 marks.
- Describe briefly load and system compensation schemes.
- Explain the principle of reactive power compensation by STAT com at the midpoint of the transmission line.
- Explain in detail the principle of shunt compensation with example of two machine model and discuss its effective reactive power control compared to the uncompensated line.
- Explain various reactive power compensation devices given below. (a) Shunt capacitors.
- Explain various reactive power compensation devices given below. (b) Shunt reactors.
- Explain various reactive power compensation devices given below. (c) Series capacitors.
- Explain various reactive power compensation devices given below. (d) Synchronous condenser.
- Describe the working principle of a FACTS device capable of supply and control of independent real and reactive power.
- Explain the improvement that a TCSC can bring about in a power system and what are its disadvantages.
- Describe the basic operating principle of a UPEC (unified power flow controller). N - 6626
- Explain the control of FIVDC link with reference to power transmitted between two areas connected by the link.
- Explain different types of HVDC Link.
- Draw the layout of a bi-polar HVDC substation and briefly discuss about various components present.
- Explain in detail about individual phase control firing scheme. Also mention the drawbacks of this scheme. ( $6 \times 10=60$ Marks)