The paper covers several of the Tools and Techniques used by a protection engineer in a methodology to test and document the qualities of an area's transmission line protection. The documents can be a useful "legacy" for use by others in the future. The tools described are generally available to the present-day engineer These tools include word processors, electronic spreadsheets and specialized relay coordination software. The Techniques used by this protection engineer are part of a skill set developed through association with other practicing engineers, through study of literature on the subject and through individual experience in practicing the profession.
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