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New Method for Locating Transmission Line Ground Faults

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1 Author(s)

The current ratio method has yielded good results for ground fault location, however, it is dependent on current readings from both ends of a 2-terminal transmission line. The proposed method is operable from current data, namely, the phase and residual currents, from a single terminal. A distinctive ratio curve is obtained for circuits containing series capacitors, and the method provides a means for locating ground faults on 3-terminal circuits.

Published in:

Power Apparatus and Systems, Part III. Transactions of the American Institute of Electrical Engineers  (Volume:81 ,  Issue: 3 )