Rajasthan Technical University, Kota

Transcription

1 COURSE - FILE Name : Dr. Dinesh Birla Branch : Electrical Engineering Session : , Odd Semester Semester : M. Tech I st Semester Specialization : Power System

2 Index: Course File Sr. No. Content/ Item no. Page No. 1 Students Detail 3 2 Course Schedule 4-6 Course-File General Format Time-Table Syllabus Course Plan 3 More on Course Schedule 7-11 Method of Evaluation Guidelines to Study the Subject Program Outcomes Course Outcomes Objectives Outcome Relationship Matrix 4 Assignment Assignment Assignment Assignment Assignment Tutorial Tutorial Tutorial Tutorial Tutorial Lecture Plan Mid Term Question Paper (I & II) Performance of Students in Mid Terms 29

3 Student Details S. No. Roll No. Student Name 1 14EUCPS600 AJAY GAHLOT 2 14EUCPS601 AJAY SINGH NARUKA 3 14EUCPS602 AKANSHA JAIN 4 14EUCPS603 AMIT KESHARI 5 14EUCPS604 AMIT PANWAR 6 14EUCPS605 BRIJESH KUMAR SEN 7 14EUCPS606 CHANDAN VAISHNAV 8 14EUCPS607 DHEERAJ KUMAR DHAKAD 9 14EUCPS608 LAXMAN SINGH 10 14EUCPS609 MAMTA MEHTA 11 14EUCPS610 MOHIT SHARMA 12 14EUCPS611 MONIKA SHARMA 13 14EUCPS612 MUKESH MENARIYA 14 14EUCPS613 OMVEER SHARMA 15 14EUCPS614 PINKY YADAV 16 14EUCPS615 POOJA NAGAR 17 14EUCPS616 SUMAN KUMARI JAILIYA 18 14EUCPS617 YOGESH KUMAR

4 Course Schedule 3. Department : Electrical Engineering Course Details Name of the Programme : M. Tech. Batch : Electrical Branch : Electrical Semester : I Title of the Subject : Power System Analysis Subject Code : 1MPS1 No. of Students: 18 General: About Course File Format 1. Time Table and Syllabus. 2. Course Schedule including Course Plan. 3. Experiments List and Lab manual also, if required. 4. List of Assignments / Tutorials/ Seminar Topics given to students. 5. Tutorial Sheet (If required, as per the syllabus). 6. Lecture Plan. 7. Model Question Paper of the subject distributed to students included (Question Bank of important Questions). 8. Mid Term Question Paper (I & II) and answer-books. 9. Question of previous years available by University. 10. Marks details of the Students in respect of MTE I (Mid Term Exam) and MTE II.

5 Course File 3. Department : Electrical Engineering SYLLABUS COPY M. TECH. I-SEMESTER 1MPS1 - POWER SYSTEM ANALYSIS Fault Analysis: Positive, Negative and Zero sequence equivalent circuits of lines, two and three winding transformers and synchronous machines. Analysis of shunt and series faults, effect of neutral grounding. Admittance and Impedance Model and Network Calculations: Calculation of Z-bus, Y-bus. Algorithm for the formation of bus admittances and impedance matrices, Fault calculation using Z-bus. Load Flow Studies: Formulation of load flow problem. Various types of buses. Gauss-Siedel, Newton- Raphson and Fast Decoupled Algorithms. Calculation of reactive power at voltage controlled buses in the Gauss-Siedel interactive method using Y-bus. Representation of transformers-fixed tap setting transformer, Tap changing under load transformers, Phase shifting transformers, Comparison of methods for load flow. Power System Security and State Estimation: Concepts of security states and security analysis in power system, State estimation in power system.

6 2. COURSE PLAN Unit Name of No. Unit 1 Fault Analysis 2 Admittance and Impedance Model and Network Calculation s: 3 Load Flow Studies 4 Calculation of reactive power 5 Power System Security and State Estimation Topics to cover Lecture No. Introduction, Electrical Power System 1 Per Unit Quantities, Basic Terms, Single line diagram for a balanced 3-phase 2 system Admittance Model and calculations 3, 4 Mutually coupled branches in Ybus 5 Bus Admittance Matrix formation and numerical. 6 Formation of Ybus using Singular transformation method and numericals 7, 8 Formation of Zbus using Singular transformation method and numerical 9 Bus admittance and impedance matrices. Thevenin s theorem and Z bus. 10 Direct determination of Z bus. Modification of an existing bus. 11 Transient on a Transmission line, short circuit of a synchronous machine on no 12 load, short circuit of a loaded synchronous machine. EquIalent circuits of synchronous machine under sub transient, transient and 13 steady state conditions. Selection of circuit breakers, Algorithm for short circuit studies. Analysis of 14 three-phase faults Fortescure theorem, symmetrical component transformation. 15 Phase shift in star-delta transformers. 16 Sequence Impedances of transmission lines, Synchronous Machine and Transformers, zero sequence network of transformers and transmission lines. Construction of sequence networks of power system. Analysis of single line to 17 ground faults using symmetrical components Analysis of line to line fault using symmetrical components. Analysis of double 18 line to ground faults using symmetrical components Analysis of unsymmetrical shunt faults using bus impedance matrix method 19 Connection of sequence networks under fault conditions 20 Load flow problem, Development of load flow equations 21 Bus classification. Gauss Seidel 22 Newton Raphosn 23 Decoupled and fast decoupled methods for load flow analysis. Comparison of 24,25 load flow methods Calculation of reactive power at voltage controlled buses in the gauss siedel 26,27 interactive method under load Representation of transformers Fixed tap setting transformer,tap changing under 28,29 load condition Phase shifting transformers 30 Concepts of security states 31 Security analysis in power system 32 State estimation in power system 33

7 3 METHOD OF EVALUATION Course File 3.1 Mid Term Examinations (MTE I & MTE II) 3.2 Assignment / Tutorials 3.3 Viva wherever applicable 3.4 Term End Examination Foundation Topics: Introduction to per unit quantities Introduction to Symmetrical component and fault analysis methods Advanced Topics: Admittance model and Admittance matrix Impedance model and Impedance matrix

8 More on Course Schedule 3. Department : Electrical Engineering Guidelines to Study the Subject 1. Preparation: - Basic fundamental of knowledge of simple power flow and faults for their study and analysis. 2. Core Competence: - To provide students the knowledge of power system design and analysis and to determine the operational performance of existing systems. 3. Breadth: -To prepare for a better future in the field of designing new electrical systems. Learning Environment: - To provide student a friendly and professional environment.

9 More on Course Schedule 3. Department : Electrical Engineering The General Categories of Program Outcomes are: Sr. No. a b c d e f g h i j k General Categories of Program Outcomes Ability to acquire knowledge of specific discipline or professional area with an ability to discriminate, evaluate, analyze and synthesize existing and new knowledge, and integration of the same for enhancement of knowledge. Ability to formulate and analyse complex electrical engineering problems. Ability to solve engineering problems and arrive at feasible, optimal solutions after considering public health and safety. Ability to apply appropriate research methodologies, techniques and tools, design,conduct experiments, analyse and interpret data. Ability to apply appropriate techniques, resources, and modern engineering Ability to collaborative-multidisciplinary scientific research,demonstrate a capacity for self-management and teamwork. Ability to manage projects efficiently after consideration of economic and financial factors. Ability to make effective presentations and design documentation by adhering to appropriate standards. Ability to engage in life-long learning independently to improve knowledge and competence Ability to contribute to the community for sustainable development of society Ability to learn from mistakes without depending on externalfeedback

10 More on Course Schedule 3. Department : Electrical Engineering On completion of this Subject/ Course the students shall be able to understand the following: S. No. Objectives I Per unit representation is more convenient to express current, voltage, power rather than ampere, volt, watts. II The method of symmetrical component is a general one applicable to any poly phase system. III IV V Purpose of fault analysis is to determine the value of voltage and current at different points etc. Load flow analysis is determination of current, voltage, active power, reactive power operating under static condition. Concept of Power System Security and State Estimation.

11 More on Course Schedule Objectives Outcome Relationship Matrix (Indicate the relationship by x mark). COURSE OBJECTIVES PROGRAM OUTCOMES (POs) COURSE COURSE TITLE a b c d e f g h i j k CODE 1MPS1 POWER SYSTEM ANALYSIS x x x x 1MPS2 ADVANCED POWER ELECTRONICS x x x x 1MPS3 POWER SYSTEM STABILITY x x x 1MPS4.1 POWER GENERATION SOURCES x x x x 1MPS4.2 ECONOMIC OPERATION OF POWER SYSTEM x x x x 1MPS4.3 NUMERICAL METHODS & COMPUTER x x x PROGRAMMING 1MPS5 MATLAB PROGRAMMING LAB x x x x 2MPS1 ELECTRIC DRIVES & THEIR CONTROL x x x x 2MPS2 ADVANCED POWER SYSTEM PROTECTION x x x 2MPS3 EHV AC/DC TRANSMISSION x x x x x 2MPS4.1 OPERATION & CONTROL OF POWER x x x x SYSTEMS 2MPS4.2 POWER SYSTEM DYNAMICS x x 2MPS4.3 POWER SYSTEM PLANNING & RELIABILITY x x x x 2MPS5 POWER SYSTEM MODELLING & SIMULATION x x x LAB 3MPS1.1 FLEXIBLE AC TRANSMISSION SYSTEMS x x x 3MPS1.2 HIGH VOLTAGE DIRECT CURRENT x x x x TRANSMISSION 3MPS1.3 POWER SYSTEM TRANSIENTS & HIGH x x x x VOLTAGE ENGINEERING 3MPS2.2 EXCITATION OF SYNCHRONOUS MACHINES x x x & THEIR CONTROL 3MPS2.3 AI APPLICATIONS TO POWER SYSTEMS x x x 3MPS2.1 ADVANCED POWER SYSTEM x x x

12 Assignment Sheet - I 3. Department : Electrical Engineering Assignment- I Q1. How the various power system components are represented in a single line diagram on per phase basis? Q2. Derive the fault current equation for double line to ground fault involving fault impedance and having neutral impedance for a loaded generator.

13 Assignment Sheet - II 3. Department : Electrical Engineering Assignment-II Q.1 Evaluate the element of Jacobian matrix for a 3 bus system one slack, one PV, one PQ bus, V 3 =2.04pu Y Bus = Q.2 Describe the various step of power system with respect to power system security in terms of recovery of security. Q.3 Give a comparison of various load flow method.

14 Assignment Sheet - III 3. Department : Electrical Engineering Assignment- III. Q.1 Describe the procedure C all conditions of PQ and PV buses considering reactive power for GS load bus. Q.2 Write the Jacobian element equations required in NR load flow solution for a general n bus system considering PQ and PV buses.

15 Assignment Sheet - IV 3. Department : Electrical Engineering Assignment- IV Q.1 Derive the double line to ground fault current without fault impedance & neutral impedance for a isolated power system. Q.2 Describe the sub-transient and transient reactance calculation values for transformer transmission line and synchronous generator. Q.3 Describe any two steps out of four steps of step by step Z- bus building algorithm.

16 Assignment Sheet - V 3. Department : Electrical Engineering Assignment- V Q1. Explain development of load flow equations. Q2. Explain bus classification. Q3. Explain Newton Ralphson method with its algorithm. Q4. Explain decoupled and fast decoupled load flow methods. Q5. Compare different of load flow methods

17 Tutorial Sheet I 3. Department : Electrical Engineering TUTORIAL-1 1. Two generators rated 10 MVA, 13.2 KV and 15 MVA, 13.2 KV are connected in parallel to a bus bar. They feed supply to 2 motors of inputs 8 MVA and 12 MVA respectiely. The operating voltage of motors is 12.5 KV. Assuming the base quantities as 50 MVA, 13.8 KV, draw the per unit reactance diagram. The percentage reactance for generators is 15% and that for motors is 20%. 2. A 30 MVA, 13.8 KV, 3-phase generator has a sub transient reactance of 15%. The generator supplies 2 motors through a step-up transformer - transmission line step- down transformer arrangement. The motors have rated inputs of 20 MVA and 10 MVA at 12.8 KV with 20% sub transient reactance each. The 3-phase transformers are rated at 35 /115 KV-Y with 10 % leakage reactance. The line reactance is 80 MVA, 13.2 KV- ohms. Draw the equialent per unit reactance diagram by selecting the generator ratings as base values in the generator circuit. 3. A 80 MVA, 10 KV, 3-phase generator has a sub transient reactance of 10%. The generator supplies a motor through a step-up transformer - transmission line step-down transformer arrangement. The motor has rated input of 95 MVA, 6.3 KV with 15% sub transient reactance. The step-up 3-phase transformer is rated at 90 MVA, 11 KV-Y /110 KV-Y with 10% leakage reactance. The 3- phase step-down transformer consists of three connected transformers, each rated at MVA, 68/6.6 KV with 10% single phase Y- leakage reactance. The line has a reactance of 20 ohms. By selecting the 11 KV, 100 MVA as base values in the generator circuit, determine the base values in all the other parts of the system. Hence evaluate the corresponding pu values and draw the equialent per unit reactance diagram.

18 Tutorial Sheet II 3. Department : Electrical Engineering Tutorial-II 1. The one line diagram for a radial system network consists of two generators, rated 10 MVA, 15% and 10 MVA, 12.5 % respectiely and connected in parallel to a bus bar A at 11 KV. Supply from bus A is fed to bus B (at 33 KV) through a transformer T1 (rated: 10 MVA, 10%) and OH line (30 KM long). A transformer T2 (rated: 5 MVA, 8%) is used in between bus B (at 33 KV) and bus C (at 6.6 KV). The length of cable running from the bus C up to the point of fault, F is 3 KM. Determine the current and line voltage at 11 kv bus A under fault conditions, when a fault occurs at the point F, gien that Zcable = j 0.08 ohm/ km and ZOH-line = j 0.36 ohm/km 2. A generator-transformer unit is connected to a line through a circuit breaker. The unit ratings are: Gen.: 10 MVA, 6.6 KV, Xd = 0.1 pu, Xd = 0.2 pu and Xd = 0.8 pu; and Transformer: 10 MVA, 6.9/33 KV, Xl = 0.08 pu; The system is operating on no-load at a line voltage of 30 KV, when a three-phase fault occurs on the line just beyond the circuit breaker. Determine the following: (i) Initial symmetrical RMS current in the breaker, (ii) Maximum possible DC off- set current in the breaker, (iii) Momentary current rating of the breaker, (I) Current to be interrupted by the breaker and the interrupting KVA and (v) Sustained short circuit current in the breaker.

19 Tutorial Sheet III 3. Department : Electrical Engineeing Tutorial-III 1. The line b of a 3-ph line feeding a balanced Y-load with neutral grounded is open resulting in line currents: Ia = 10<0 o & Ic = 10< 120 o A. Determine the sequence current components. 2. One conductor of a 3-ph line feeding a balanced delta-load is open. Assuming that line c is open, if current in line a is 10<0 A, determine the sequence components of the line currents. 3. Three identical resistors are Y-connected to the LT Y-side of a delta-star transformer. The voltages at the resistor loads are Vab = 0.8 pu., Vbc =1.2 pu., and Vca =1.0 pu. Assume that the neutral of the load is not connected to the neutral of the transformer secondary. Find the line voltages on the HT side of the transformer. 4. The line currents in a 3-ph 4 wire system are Ia = 100<30 o, Ib = 50<300 o, Ic = 30<180 o. Find the symmetrical components and the neutral current. 5. Determine the sequence components if are Ia = 10<60 o A, Ib = 10<-60 o A, Ic = 10<180 o A.

20 Tutorial Sheet IV Rajasthan Technical University, Kota 3. Department : Electrical Engineering Tutorial-IV 1) A three phase generator with constant terminal voltages gies the following currents when under fault: 1400 A for a line-to-line fault and 2200 A for a line-to-ground fault. If the positie sequence generated voltage to neutral is 2 ohms, find the reactances of the negatie and zero sequence currents 2) A dead fault occurs on one conductor of a 3-conductor cable supplied y a 10 MVA alternator with earhed neutral. The alternator has +ve, -ve and 0-sequence components of impedances per phase respectiely as: (0.5+j4.7), (0.2+j0.6) and (j0.43) ohms. The corresponding LN values for the cable up to the point of fault are: (0.36+j0.25), (0.36+j0.25) and (2.9+j0.95) ohms respectiely. If the generator voltage at no load (Ea1) is 6600 volts between the lines, determine the (i)fault current, (ii)sequence components of currents in lines and (iii)voltages of healthy phases. 3) A generator rated 11 kv, 20 MVA has reactances of X1=15%, X2=10% and X0=20%. Find the reactances in ohms that are required to limit the fault current to 2 p.u. when a a line to ground fault occurs. Repeat the analysis for a LLG fault also for a fault current of 2 pu. 4) A three phase 50 MVA, 11 kv generator is subjected to the various faults and the surrents so obtained in each fault are: 2000 A for a three phase fault; 1800 A for a line-to-line fault and 2200 A for a line-toground fault. Find the sequence impedances of the generator. 5) Determine the fault currents in each phase following a double line to ground short circuit at the terminals of a star-connected synchronous generator operating initially on an open circuit voltage or i.o pu. The positie, negatie and zero sequence reactance of the generator are respectiely 70.35, j0.25 and j0.20, and its star point is isolated from ground.

21 Tutorial Sheet V 3. Department : Electrical Engineering Tutorial-V Q.1 A generator-transformer unit is connected to a line through a circuit breaker. The unit ratings are: Gen.: 10 MVA, 6.6 KV, Xd = 0.1 pu, Xd = 0.2 pu and Xd = 0.8 pu; and Transformer: 10 MVA, 6.9/33 KV, Xl = 0.08 pu; The system is operating on no-load at a line voltage of 30 KV, when a three-phase fault occurs on the line just beyond the circuit breaker. Determine the following: (i) Initial symmetrical RMS current in the breaker, (ii) Maximum possible DC off- set current in the breaker, (iii) Momentary current rating of the breaker, (I) Current to be interrupted by the breaker and the interrupting KVA and (v) Sustained short circuit current in the breaker.

22 Lecture Plan Subject Code: 1MPS1 Duration of Lesson: 55 min Lesson 1; Title: Introduction of Electrical Power System 1 Introduction 10 2 Electrical Power System 10 3 Per Unit Quantities 15 4 Basic Terms 15 Lesson 2; Title: Per Unit Quantities 1 Per Unit Quantities, Basic Terms, Single line diagram for a balanced 3-phase system 35 2 Numerical 20 Lesson 3; Title: Admittance Model 1 Admittance Model and calculations 50 Lesson 4; Title: Admittance Model and calculations 1 Admittance Model and calculations 20 2 Numericals 30 Lesson 5; Title: Mutually coupled branches in Ybus 1 Mutually coupled branches in Ybus 20 2 Numericals 30 Lesson 6; Title: Formation of Ybus 1 Bus Admittance Matrix formation and numerical Numericals 30

23 Lesson 7; Title: Bus admittance Matrices for fault analysis 1 Formation of Ybus using Singular transformation method and numericals 50 Lesson 8; Title: Formation of Ybus using Singular transformation 1 Formation of Ybus using Singular transformation method 30 2 Numericals 20 Lesson 9; Title: More on Formation of Ybus using Singular transformation 1 Formation of Zbus using Singular transformation method and numerical 25 2 Numericals based on above 25 Lesson 10; Title: Bus admittance and impedance matrices 1 Bus admittance and impedance matrices. Thevenin s theorem and Z bus Numerical 15 Lesson 11; Title: Direct determination of Zbus 1 Direct determination of Z bus. Modification of an existing bus Numerical 20 Lesson 12; Title: Transient on Transmission lines, Synchronous Machines 1 Transient on a Transmission line, short circuit of a synchronous machine on no load 35 2 Short circuit of a loaded synchronous machine. 15 Lesson 13; Title: Equivalent Circuits 1 EquIalent circuits of synchronous machine under sub-transient, transient and steady 40 state conditions. 2 Numerical 10

24 Lesson 14; Title: Algorithm for Short Circuit Studies 1 Selection of circuit breakers, Algorithm for short circuit studies Analysis of three-phase faults 20 3 Numerical 10 Lesson 15; Title: Symmetrical Component 1 Fortescure theorem, symmetrical component transformation Numerical 15 Lesson 16; Title: Synchronous Machine and Transformers 1 Phase shift in star-delta transformers. 35 Sequence Impedances of transmission lines, Synchronous Machine and Transformers, zero sequence network of transformers and transmission lines. 2 Numericals 15 Lesson 17; Title: Construction of Sequence Networks 1 Construction of sequence networks of power system. Analysis of single line to ground faults using symmetrical components 35 2 Numerical 15 Lesson 18; Title: Analysis of line to line fault 1 Analysis of line to line fault using symmetrical components. Analysis of double line to 25 ground faults 2 Numerical 25 Lesson 19; Title: Connection of Sequence Networks Under Fault Conditions 1 Connection of sequence networks using symmetrical components under fault 30 conditions 2 Examples of the fault analysis 20 Lesson 20; Title: Connection of Sequence Networks Under Fault Conditions 1 Analysis of unsymmetrical shunt faults using bus impedance matrix method 30 2 Numerical 20

25 Lesson 21; Title: Load flow problem 1 Load flow problem, Development of load flow equations 35 2 Numerical 15 Lesson 22; Title: Gauss Seidel Load Flow Method 1 Bus classification. Gauss Seidel Numericals 20 Lesson 23; Title: Newton Raphson Load Flow Method 1 Newton Raphosn 30 2 Numericals 20 Lesson 24; Title: Fast Decoupled Method 1 Decoupled and fast decoupled methods for load flow analysis Numerical 20 Lesson 25; Title: Comparison of Load Flow Methods 1 Comparison of load flow methods 20 2 Numericals 30 Lesson 26; Title: Calculation of Reactive Power at Voltage Controlled Buses 1 Calculation of reactive power at voltage controlled buses in the gauss siedel interactive method under load 50 Lesson 27; Title: Calculation of Reactive Power 1 Calculation of reactive power at voltage controlled buses in the gauss siedel 30 interactive method under load 2 Numerical 20

26 Lesson 28; Title: Representation of Transformers, Fixed Tap Setting 1 Representation of transformers Fixed tap setting transformer, tap changing under load condition 35 2 Numericals based on it 15 Lesson 29; Title: Representation of Transformers Fixed Tap Setting 1 Representation of transformers Fixed tap setting transformer, tap changing under load 30 condition 2 Numerical 20 Lesson 30; Title: Phase Shifting Transformers 1 Phase Shifting Transformers 40 2 Numerical 10 Lesson 31; Title: Concepts of Security States 1 Concepts of Security States 50 Lesson 32; Title: Security Analysis in Power System 1 Security Analysis in Power System 50 Lesson 33; Title: State Estimation in Power System 1 State Estimation in Power System 50 \

27 I Mid Term Question Paper Subject Code: 1MPS1 Duration: 1Hr Rajasthan Technical University, Kota M. Tech I Year, I Sem, Branch: Power System I Mid Term Examination ( ) Subject: Power System Analysis Date: 16/10/2014 Duration: 1 Hr Maximum Marks: 12.5 Instructions to Candidates: Attempt all questions. Q.1 What are the advantage of p.u. system? How the p.u. quantities are obtain for 3-ɸ data? Q.2 Describe how the fault current is obtain for L-G fault on a unloaded generator with neutral solidly grounded and fault impedance zero. Q.3 Describe how the sequence component quantities are decoupled in a single circuit also mention the references for them.

28 II Mid Term Question Paper Subject Code: 1MPS1 Duration: 1Hr Date:10/12/2014 Rajasthan Technical University, Kota M. Tech I Year, I Sem, Branch: Power System II Mid Term Examination ( ) Subject: Power System Analysis Duration: 1Hr Maximum Marks: 12.5 Instructions to Candidates: Attempt all questions. Q.1 Derive L-G fault analysis equation using Z bus and compare with analogues quantities of normal fault analysis. Q.2 Derive Z bus using step by step method. Q.3 A single line to ground fault occur on bus-1 find symmetrical component of short circuit fault current in the line and find I 1-12 ; I 2-12 ; I 0-12.

29 Performance of Students in Mid Term Exams Subject Code: 1MPS1 Maximum Marks: 25 S. No. Roll No. Student Name Average Marks obtained in MT I & MT II 1 14EUCPS600 AJAY GAHLOT EUCPS601 AJAY SINGH NARUKA EUCPS602 AKANSHA JAIN EUCPS603 AMIT KESHARI EUCPS604 AMIT PANWAR EUCPS605 BRIJESH KUMAR SEN EUCPS606 CHANDAN VAISHNAV EUCPS607 DHEERAJ KUMAR DHAKAD EUCPS608 LAXMAN SINGH EUCPS609 MAMTA MEHTA EUCPS610 MOHIT SHARMA EUCPS611 MONIKA SHARMA EUCPS612 MUKESH MENARIYA EUCPS613 OMVEER SHARMA EUCPS614 PINKY YADAV EUCPS615 POOJA NAGAR EUCPS616 SUMAN KUMARI JAILIYA EUCPS617 YOGESH KUMAR 22