IEEE C37.100-1992 pdf free.IEEE Standard Definitions for Power Switchgear.
IEEE C37.100 The terms and definitions in the standard are intended to encompass the products within the scope of the C37 projectthat include power switchgear for switching,interrupting,metering, protection, and regulating purposes as usedprimarily in connection with generation, transmission, distribution, and conversion of electric power.
The definitions of terms and explanatory notes relating thereto contained in this standard are not intended to embraceallpossible meanings of the terms. They are intended for the sole purpose of establishing only those meanings of termsused in switchgear standards. They do not purport to embrace other meanings that the terms may properly have whenused in connection with other subjects.
In some instances, terms and definitions that are not identical to those in this standard have been developed by othebranches of industry. Where this situation exists, the definitions in this standard shall be used for power switchgeawithin the C37 product scope.
In this standard. preferred terms are in some instances followed by less favored or alternate terms in parentheses.Also,since the terms are arranged alphabetically, application phrases have been parenthetically appended to many terms.
For definitions of terms of related component parts, accessories, etc., not covered in this standard, reference should bemade to standards covering those products; for example, IEEE C57.13-1978, and IEEE Std 21-1976.
When the standards referred to in this standard are superseded by an approved revision, the latest revision shall beused.
automatic control: An arrangement of electrical controls that provides for switching or otherwise controlling or bothin an automatic sequence and under predetermined conditions the necessary devices comprising a piece of equipment.These devices thereupon maintain the required character of service and provide adequate protection against all unusualoperating emergencies.
automatic line sectionalizer: A self-contained circuit-opening device that automatically opens the main electricalcircuit through it after sensing and responding to a predetermined number of successive main current impulses equalto or greater than a predetermined magnitude. It opens while the main electrical circuit is de-energized. lt may alsohave provision to be manually operated to interrupt loads.IEEE C37.100 pdf download.