Title :
Upgrading obsolete switchgear
Author :
Eubanks, Larry B.
Author_Institution :
Cleveland Electric Co., Atlanta, GA, USA
Abstract :
The history of the development of power circuit breaker overcurrent trip devices from dashpots to digital circuit breakers is presented. The development of the retrofit circuit breaker concept is reviewed. The engineering considerations of retrofitting, economical benefits of retrofitting, sources and brands of retrofit kits, and problems with un-kit retrofits are discussed. Two examples of retrofit cases are described
Keywords :
circuit breakers; maintenance engineering; dashpots; digital circuit breakers; engineering considerations; obsolete switchgear upgrade; overcurrent trip devices; power circuit breaker; retrofit circuit breaker; retrofit kits; retrofitting; un-kit retrofits; Circuit breakers; Coils; Delay effects; Energy management; History; Manufacturing; Petroleum; Power generation economics; Protection; Switchgear;
Conference_Titel :
Pulp and Paper Industry Technical Conference, 1992., Conference Record of 1992 Annual
Conference_Location :
Portland, OR
DOI :
10.1109/PAPCON.1992.186284
