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Posted By: Sriram Member Level: Diamond Posted Date: 14 Jun 2008
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2006 Andhra Pradesh State Jawaharlal Nehru Technological University B.Tech INSTRUMENTATION AND CONTROL IN ELECTRICAL SYSTEMS Set No.4 Question paper
Code No: RR412204 Set No. 4
IV B.Tech I Semester Regular Examinations, November 2006
INSTRUMENTATION AND CONTROL IN ELECTRICAL SYSTEMS
(Instrumentation & Control Engineering)
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
? ? ? ? ?
1. (a) Explain briefly about the importance of transmission and distribution of a
power system also state its classifications. [4]
(b) Briefly discuss about a typical distribution network. [12]
2. Derive the formulae associated with the short term optimization problem for ther-
mal station. [16M]
3. State different types of AVR’s. explain how voltage can be controlled using any
one type of AVR. [16M]
4. Discuss briefly about the factors affecting a distrubtion system. [16M]
5. Define tariff . What are the desirable characteristics of a tariff. [16M]
6. Define SCADA . Discuss briefly about various components of SCADA [16M]
7. (a) Classify different types of circuit breakers.
(b) Explain in detail about SF6 circuit breaker. [4+12]
8. (a) What is a relay? State its classifications.
(b) Explain briefly about an electro magnetic attraction type relay. [4+12]
? ? ? ? ?
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