GB/T 36273-2018 in English
VALIDDigital interface technical specification for relaying protection and security automatic equipment in smart substation
- Issued on:2018-06-07
- Implemented on:2019-01-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
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《GB/T 36273-2018智能变电站继电保护和安全自动装置数字化接口技术规范》由524（中国电力企业联合会）归口，主管部门为中国电力企业联合会。
Introduction
National Standard of the People's Republic of China GB/T 36273—2018
Technical Specification for Digital Interface of Relay Protection and Safety Automatic Devices in Smart Substations
Standard Overview and Background
This standard is proposed and managed by the China Electricity Council and is applicable to smart substations with a voltage level of $110~\mathrm{kV}(66~\mathrm{kV})$ and above. The purpose of the standard is to standardize the digital interface of relay protection and safety automatic devices and to improve the reliability, selectivity, sensitivity and speed of the relay protection system.
Core content framework
| Chapter | Main content | Scope of application |
|---|---|---|
| Virtual terminal interface specification | Defines the modeling and configuration requirements of GOOSE and SV virtual terminals to ensure the accuracy and consistency of information interaction. | Smart substation devices of all voltage levels. |
| Physical interface specification | Specifies the requirements for optical fiber types, wavelengths and connectors to ensure the stability and reliability of data transmission. | Communication interface between process layer devices. |
| Press plate configuration | Specifies the functions and configuration methods of soft and hard press plates, emphasizing the need for remote operation control. | Device operation status management and control. |
Explanation of professional terms
Application case of GOOSE mechanism
GOOSE (Generic Object Oriented Substation Events) is an event message mechanism for substation communication. For example, in a smart substation, the position status information of circuit breakers and switches is usually transmitted through dual-point information, while ordinary telesignaling signals are transmitted through single-point information. This method ensures the real-time and reliability of information interaction.
Technology Evolution Analysis
Compared with traditional substations, smart substations achieve efficient communication between relay protection devices and process layer equipment through digital interfaces. This technological evolution not only improves the intelligence level of the system, but also reduces the complexity of the secondary circuit, providing greater convenience for operation, maintenance and management.
Implementation Suggestions
- During the engineering design phase, strictly select the optical fiber type and wavelength in accordance with the standard requirements to ensure communication quality.
- When configuring virtual terminals, it is recommended to use Chinese descriptions to improve readability and ensure the consistency of the desc and dU attributes in the ICD file.
- In actual operation, regularly check the communication status and CRC check code of the device to promptly detect and handle abnormal situations.
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