| Abstract | 第7页 |
| 1 INTRODUCTION | 第10-13页 |
| 1.1 Importance of protection systems | 第10页 |
| 1.2 Distance protection | 第10-11页 |
| 1.3 Distance relay Zones | 第11页 |
| 1.4 Problems of distance protection | 第11-12页 |
| 1.5 Basics of Distance Relaying | 第12页 |
| 1.6 Operation of Distance Relays | 第12-13页 |
| 2 Reclosing | 第13-19页 |
| 2.1 Introduction | 第13页 |
| 2.2 Terms and definitions | 第13-15页 |
| 2.3 Auto-reclosing Types | 第15-18页 |
| 2.4 Three phase Vs Single phase auto-reclose | 第18-19页 |
| 3 Signal Analysis and Algorithm | 第19-23页 |
| 3.1 Fundamental Considerations | 第19页 |
| 3.2 Digital Distance Measurement | 第19-20页 |
| 3.3 Fourier Analysis | 第20-21页 |
| 3.4 Fourier Analysis Based Algorithm | 第21页 |
| 3.5 Principle of Algorithm | 第21-23页 |
| 4 Model in PSCAD | 第23-30页 |
| 4.1 Setting of zones of protection | 第23页 |
| 4.2 Operation Model | 第23-26页 |
| 4.3 Sequence Components Block | 第26-27页 |
| 4.4 Line to Line & Line to Ground impedance Block | 第27-29页 |
| 4.5 Calculation of impedance setting values for zones of protection | 第29-30页 |
| 5 Simulation Results | 第30-36页 |
| 5.1 No fault simulation | 第30-31页 |
| 5.2 Simulation of line for phase to ground fault | 第31-32页 |
| 5.3 Simulation of Phase to phase fault | 第32-33页 |
| 5.4 Simulation of three phase oF ABC fault | 第33-34页 |
| 5.5 Simulation of two phase to ground or AB,AC,BC to ground fault | 第34-35页 |
| 5.6 Simulation of three phase to ground or ABC to ground fault | 第35-36页 |
| 6 Simulation of faults when one phase is open | 第36-42页 |
| 6.1 Casel:C is open and the fault is on the A phase | 第36-37页 |
| 6.2 Case2:C is open and the fault is on the B phase | 第37-38页 |
| 6.3 Case3:B is open and the fault is on A phase | 第38-39页 |
| 6.4 Case4:B is open and the fault is on C phase | 第39-40页 |
| 6.5 Case5:A is open and the fault is on B phase | 第40-41页 |
| 6.6 Case6:A is open and the fault is on C phase | 第41-42页 |
| 7 Distance relay operation during reclosing | 第42-47页 |
| 7.1 Recloser | 第42-43页 |
| 7.2 Performance of distance relay when P.T is on the bus side | 第43-44页 |
| 7.3 Performance of distance relay when P.T is on the open side | 第44-45页 |
| 7.4 distance relay performance when fault on two phases and the P.T is on the bus side | 第45-46页 |
| 7.5 Perforamance of distance relay when fault on two phases BC and the P.T is on the open side A | 第46-47页 |
| Conclusion | 第47-48页 |
| References | 第48-49页 |
| Biography | 第49页 |
