Simulation of longitudinal differential protection of transmission lines with additional stabilization and APU system
This paper explains the algorithm for the longitudinal differential protection of transmission lines with automatic reclosing. Classic stabilization is not sufficient for avoiding of unnecessary operations caused by saturation of current transformer. This problem can occur during the fault plased ou...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Savez inženjera i tehničara Srbije
2016-01-01
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| Series: | Tehnika |
| Subjects: | |
| Online Access: | http://scindeks-clanci.ceon.rs/data/pdf/0040-2176/2016/0040-21761606861R.pdf |
| Summary: | This paper explains the algorithm for the longitudinal differential protection of transmission lines with automatic reclosing. Classic stabilization is not sufficient for avoiding of unnecessary operations caused by saturation of current transformer. This problem can occur during the fault plased outside of the protected zone of the transmission line. It is shown how unnecessary operation can occur during the outside fault whithout using of additional stabilization. The different types of faults were simulated and comparison of relay operations with and without additional stabilization is presented. The simulations were performed on the three-phase model of the transmission line formed by using of MATLAB/Simulink program. |
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| ISSN: | 0040-2176 2560-3086 |