Abstract
This paper presents a theoretical and experimental study of a new technique for pilot differential protection of transmission lines. The difference currents obtained from post- and pre-fault line currents, adjusted by calculated charging currents, are used to minimize the desensitizing effect of load and line charging currents. The experimental results are from a laboratory 16-bit microcomputer-based relay that was developed to test some of the features of this new approach. Off-line test results for various types of faults on a lumped parameter long transmission line model and real-time test results for a short transmission line model are presented.
| Original language | English |
|---|---|
| Pages (from-to) | 129-137 |
| Number of pages | 9 |
| Journal | Computers and Electrical Engineering |
| Volume | 13 |
| Issue number | 3-4 |
| DOIs | |
| State | Published - 1987 |
| Externally published | Yes |
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