GB/T 20996.2-2020
Performance of high-voltage direct current (HVDC) systems with line-commutated converters—Part 2: Faults and switching

Standard No.

GB/T 20996.2-2020

Language

Chinese

Release Date

2020

Published By

国家市场监督管理总局、中国国家标准化管理委员会

Lastest

GB/T 20996.2-2020

Replace

GB/Z 20996.2-2007

Scope

This part of GB/T20996 is a guidance document on the transient performance and fault protection requirements of high-voltage direct current systems; it discusses the two-terminal high-voltage direct current system composed of three-phase bridge (two-circuit) connected 12-pulse (dynamic) converter units. Fault and operational transient performance, does not deal with multi-terminal HVDC systems, but discusses parallel converters and parallel lines involved in two-terminal systems; assumes that the converters use thyristor valves as bridge arms, using gapless The metal oxide arrester is insulated and coordinated, and the power can be transmitted in both directions. This section does not consider diode valves. This section only deals with grid-commutated converters, including converters with capacitor-commutated circuit structures. In IEC60146 1 1, IEC60146 1 -)2 and IEC60146

GB/T 20996.2-2020 Referenced Document

• IEC 60071-1 Insulation co-ordination - Part 1: Definitions, principles and rules

GB/T 20996.2-2020 history

• 2020 GB/T 20996.2-2020 Performance of high-voltage direct current (HVDC) systems with line-commutated converters—Part 2: Faults and switching
• 2007 GB/Z 20996.2-2007 Performance of high-voltage direct current (HVDC) systems.Part 2:Faults and switching

GB/T 20996.2-2020 Performance of high-voltage direct current (HVDC) systems with line-commutated converters—Part 2: Faults and switching has been changed from GB/Z 20996.2-2007 Performance of high-voltage direct current (HVDC) systems.Part 2:Faults and switching.

GB/T 20996.2-2020 -All Parts