A current limiting device for use with a circuit breaker in an electric power system utilizes mutual inductance variation between movable windings to limit current to safe levels. In the device, first and second coil windings are electrically connected for current flow therethrough and magnetically linked...http://www.google.es/patents/US4405965?utm_source=gb-gplus-sharePatente US4405965 - Current limiting device for overcurrent protection
Current limiting device for overcurrent protection
