Full Description

Scope

This standard establishes a symmetrical current rating structure and construction requirements for all indoor and outdoor types of ac high-voltage circuit breakers rated above 1000 V. It is only applicable to three-pole circuit breakers used in three-phase systems and single-pole circuit breakers used in single-phase systems.This standard does not cover circuit breakers used at frequencies other than 50 Hz or 60 Hz, or generator circuit breakers that are covered in IEEE Std C37.013-1997.

Purpose

The document does not contain a Purpose clause

Abstract

Revision Standard - Active." This standard covers the rating structure for all high-voltage circuit breakers, which include allvoltage ratings above 1000 V ac and comprise both indoor and outdoor types having the preferredratings as listed in ANSI C37.06-1997. Typical circuit breakers covered by these standards havemaximum voltage ratings ranging from 4.76 kV through 800 kV, and continuous current ratings of 600 A,1200 A, 2000 A, and 3000 A associated with the various maximum voltage ratings. The rating structureestablishes the basis for all assigned ratings, including continuous current, dielectric withstand voltages,short-circuit current, transient recovery voltage, and capacitor switching, plus associated capabilitiessuch as mechanical endurance, load current, and out-of-phase switching. This standard does not covergenerator circuit breakers, which are covered in IEEE Std C37.013-1997. "

Product Details

Published: 12/30/1999 ISBN(s): 0738117811, 9781504419390, 9780738117829, 9780738117812 Number of Pages: 36File Size: 3 files , 1.6 MB Product Code(s): STD94774, STDPD94774, STDPL94774