Method for short-circuit current limiting on an electrical power

Details Method for short-circuit current limiting on an electrical power Method for short-circuit current limiting on an electrical power

1996-01-26

1998-01-06

Gaffin, Jeffrey A.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific quantity comparison means

361 62, 361 93, 361115, H02H 318

Patent

active

057061580

ABSTRACT:
In order to obtain an improved operating behavior in the event of short circuits on a high-voltage line having a phase shifter, the phase shifter is used as a current limiter in the event of a fault. A fault signal, which results in an increase in an opposing voltage at an additional transformer of the phase shifter, is produced for this purpose, as a function of a fault current.

REFERENCES:
patent: 4336488 (1982-06-01), Glavitsch
Brown Boveri Mitt, Aug. 1972, pp. 376-383, (Dobia) "Transformers for long-and short-circuits". 123-128.
IEEE Spectrum, Apr. 1993, pp. 40-45, "Flexible ac transmission".

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