GB/T 14824-2021 High-voltage alternating-current generator circuit-breakers

Scope

This document specifies the operating conditions, rated values, design and structure, type tests, factory tests, etc. of three-phase generator circuit breakers (hereinafter referred to as generator circuit breakers) designed for installation indoors or outdoors and operating at a rated frequency of 50 Hz and a nominal voltage of 3 kV to 38 kV systems.
This document applies to generator circuit breakers installed between generators and step-up transformers. This document applies to generator circuit breakers equipped for generators and transformers with a rated capacity greater than or equal to 10 MVA, while generator circuit breakers installed in pumped storage power stations and other operating conditions directly connected to generators are considered special applications, and their requirements are not fully included in this document.
This document also applies to the operating mechanisms of generator circuit breakers and their auxiliary equipment.
This document also applies to circuit breakers in factory auxiliary circuits.
Note: Circuit breakers directly connected to generators can also refer to this document.

Development Information

Replace the following standards

Referenced Standards

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