IEEE STANDARD RATING STRUCTURE FOR AC HIGH-VOLTAGE CIRCUIT BREAKERS RATED ON A SYMMETRICAL CURRENT BASIS
Institute of Electrical & Electronics Engineers
1 Scope
2 References
3 Definitions
4 Service conditions
5 Ratings
5.1 Rated maximum voltage
5.2 Rated power frequency
5.3 Rated continuous current
5.4 Rated dielectric withstand capability
5.5 Rated standard operating duty (standard duty
cycle)
5.6 Rated interrupting time
5.7 Contact parting time
5.8 Rated short-circuit current and related
required capabilities
5.8.1 Rated short-circuit current - No major
changes
5.8.2 Related required capabilities
5.9 Rated transient recovery voltage (TRV)
5.10 Rated operating endurance capabilities
5.11 Rated capacitance current switching
5.12 Out-of-phase switching current capability
5.13 Shunt reactor current switching capability
5.14 Line closing switching surge factor
5.15 Rated control voltage
5.16 Rated operating pressure for insulation and/or
interruption (Pre)
5.17 Rated operating pressure for mechanical
operation (Prm)
6 Construction
6.1 Outdoor apparatus bushings
6.2 Creepage distance
6.3 Mechanical loading
6.4 Pressurized components
6.5 Pressurized systems
6.6 Gas and vacuum tightness
6.7 Functional components
6.8 Stored energy requirements for operating
mechanisms
6.9 Operating mechanism requirements
6.10 Electromagnetic compatibility (EMC)
6.11 Requirements for simultaneity of poles
7 Nameplate markings
Covers all outdoor and in-door types of ac high-voltage circuit breakers rated above 1000V on symmetrical current basis.
| Document Type | Standard |
| Status | Current |
| Publisher | Institute of Electrical & Electronics Engineers |
| Supersedes |
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