A review of generally accepted applications and coordination of protection for radial power system distribution lines is presented. The Guide examines the advantages and disadvantages of schemes presently being used in protecting distribution lines. Identification of problems with the methods used in distribution line protection and the solutions for those problems are included.

The scope of this guide is to discuss the application and coordination of protection for radial power-system distribution lines. It includes the descriptions of the fundamentals, line configurations, and schemes. In addition to these, the scope includes identification of problems with the methods used in distribution line protection and the solutions for those problems.The scope of this guide is to discuss the application and coordination of protection for radial power-system distribution lines. It includes the descriptions of the fundamentals, line configurations, and schemes. In addition to these, the scope includes identification of problems with the methods used in distribution line protection and the solutions for those problems.

This guide educates and provides information on distribution protection schemes to utility engineers, consultants, educators, and manufacturers. The guide examines the advantages and disadvantages of schemes presently used in protecting distribution lines. This provides the user with the rationale for determining the best approach for protecting an electric power distribution system.