Abstract :
The relay subcommittee of the A.I.E.E. protective devices committee herewith submits its recommendations for the protection of electrical apparatus. These recommendations are based upon a questionnaire and the 37 replies thereto from specialists in this field. Answers were interpreted and codified by a group of 20 experienced engineers particularly interested in the protection of electrical apparatus and circuits. It is hoped that this concensus of present-day opinion will be the beginning of a series that will be augmented and improved with each periodic analysis and reissue.
