GB/T 34122-2017
ActiveTechnical specification for configuration of relaying protection and security automatic equipment of AC 220kV～750kV grid
220kV～750kV电网继电保护和安全自动装置配置技术规范
Application Summary AI generated
This standard specifies the technical requirements for configuring relaying protection and security automatic equipment in AC power grids operating at voltage levels from 220kV to 750kV. It is applied by power system engineers and grid operators in China to ensure reliable fault detection, isolation, and system stability for high-voltage transmission networks. The standard covers principles for device selection, redundancy, and coordination to prevent cascading failures and maintain grid security.
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