Shipshaw Relay Protection

This paper will describe the relay protection of the Shipshaw Number 2 Generating Station of the Aluminum Company of Canada, Limited, and will draw attention to particular points of interest in design considerations and will outline some operating results and experience. In particular the excellent performance of one type of generator winding protection will be outlined. This protection has established a new record by detecting faults at a stage earlier than recorded hither-to-fore in the literature. In general this paper will illustrate modern protection for a large-unit type hydroelectric generating station.