Download PTU. I.K. Gujral Punjab Technical University (IKGPTU) M.Tech. EE 2nd Semester 71357 ADVANCED RELAYING AND PROTECTION Question Paper.
Roll No. Total No. of Pages : 02
Total No. of Questions : 08
M.Tech.(EE) (2013 Batch) (Sem.?2)
ADVANCED RELAYING AND PROTECTION
Subject Code : MTEE-202
M.Code : 71357
Time : 3 Hrs. Max. Marks : 100
INSTRUCTIONS TO CANDIDATES :
1. Attempt any FIVE questions out of EIGHT questions.
2. Each question carries TWENTY marks.
Ql. (a) What are important terminology used in protective relaying? Brief them.
(b) Design factor affecting performance of a protective scheme.
(c) What are differences between static and digital numerical relaying?
(d) What are importance of instrument transformers?
Q2. A 3 phase alternator has the line voltage of 11KV. The generator is connected to a C B. The
inductive reactance up to the CB is 5 Ohm/ phase. The distributed capacitance up- to CB between
phase and neutral is 0.01 micro F. Determine :
(a) Peak re-striking voltage across the CB
(b) Frequency of restriking voltage transient
(c) Maximum RRRV.
Q3. (a) Compare the principle of directional, current and differential relaying protection.
(b) Explain the characteristics of distance relaying in power system.
Q4. A 3 phase, 2 pole, 11KV, 10 MVA alternator has neutral earthed through a resistance of 7 Ohm.
The machine has current balance protection which operates at out of balance current exceeding
20 % of full load. Determine % of winding protected against earth fault.
Q5. (a) Draw and explain various protection schemes for a motor.
(b) Explain the methods for bus bar protection using digital scheme.
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1 | M-71357 (S9)-1281
Roll No. Total No. of Pages : 02
Total No. of Questions : 08
M.Tech.(EE) (2013 Batch) (Sem.?2)
ADVANCED RELAYING AND PROTECTION
Subject Code : MTEE-202
M.Code : 71357
Time : 3 Hrs. Max. Marks : 100
INSTRUCTIONS TO CANDIDATES :
1. Attempt any FIVE questions out of EIGHT questions.
2. Each question carries TWENTY marks.
Ql. (a) What are important terminology used in protective relaying? Brief them.
(b) Design factor affecting performance of a protective scheme.
(c) What are differences between static and digital numerical relaying?
(d) What are importance of instrument transformers?
Q2. A 3 phase alternator has the line voltage of 11KV. The generator is connected to a C B. The
inductive reactance up to the CB is 5 Ohm/ phase. The distributed capacitance up- to CB between
phase and neutral is 0.01 micro F. Determine :
(a) Peak re-striking voltage across the CB
(b) Frequency of restriking voltage transient
(c) Maximum RRRV.
Q3. (a) Compare the principle of directional, current and differential relaying protection.
(b) Explain the characteristics of distance relaying in power system.
Q4. A 3 phase, 2 pole, 11KV, 10 MVA alternator has neutral earthed through a resistance of 7 Ohm.
The machine has current balance protection which operates at out of balance current exceeding
20 % of full load. Determine % of winding protected against earth fault.
Q5. (a) Draw and explain various protection schemes for a motor.
(b) Explain the methods for bus bar protection using digital scheme.
2 | M-71357 (S9)-1281
Q6. (a) What are basic elements of digital protection scheme implementation?
(b) Write important software programs (flowcharts) required for load shading.
Q7. (a) Explain methods of testing of relaying system.
(b) Explain hardware and software for implementation of digital data transmission.
Q8. Write short notes :
(a) SCADA system
(b) Frequency relaying
(c) IDMT Characteristics
(d) Pilot wire.
NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any
page of Answer Sheet will lead to UMC against the Student.
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This post was last modified on 13 December 2019