Abstract
Electrical generation at industrial plants is becoming an increasingly critical asset, and should be will protected from faults, system upsets and abnormal operating conditions. The loss of a major generating unit for an extended period would result in very costly replacement power and repair costs for any industrial facility. This paper presents the reasons why industrial generator owners should consider upgrading the electrical protection of their generators to meet today's standards. It specifically outlines the risks assumed in protection areas where 20 plus-year-old generator protection is inadequate. The paper relates the experience of a completed protection upgrade projects at a paper mill where 1960-vintage electromechanical relays were replaced with modern digital protection on two 40 MVA generators.
