GB/Z 24838-2009 Specification for 1100 kV alternating-current high-voltage circuit-breakers
GB/Z 24838-2009 Specification for 1100 kV alternating-current high-voltage circuit-breakers
Basic Information
Scope
This guidance technical document specifies the usage conditions, rated values, design and structure, testing, selection guidelines, transportation, storage, installation, operation, and maintenance requirements for 1,100 kV high-voltage AC circuit breakers.
This guidance technical document is applicable to high-voltage AC circuit breakers designed for outdoor installation and operation in an extra-high voltage power system with a frequency of 50 Hz and a nominal voltage of 1,000 kV.
This guidance technical document is also applicable to the operating mechanisms and auxiliary equipment of 1,100 kV circuit breakers.
Except for circuit breakers with single-pole automatic reclosing, circuit breakers with predefined inter-pole differentiation are not included in the scope of this guidance technical document.
Bypass circuit breakers connected in parallel with line-side capacitors and their protective equipment are not included in the scope of this guidance technical document.