GB/T 40091-2021Requirements for safety measures of relaying protection and security automatic equipment in smart substation (English PDF)

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

This standard was proposed and managed by the China Electricity Council.

1 Scope

This standard stipulates that the relay protection of smart substations and automatic power grid safety devices, related secondary equipment and secondary circuits shall comply with the on-site work. The overall requirements of the cycle, the procedures of the secondary security measures, the requirements for the formulation of secondary security measures, the requirements for the implementation of secondary security measures, and the restoration of secondary security measures Complex requirements.

This standard applies to the field work of intelligent substation relay protection and power grid security automatic devices, related secondary equipment and secondary circuits.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this document. For undated reference documents, the latest version (including all amendments) is applicable to this document.

GB/T 20840.7 Transformer Part 7: Electronic Voltage Transformer

GB/T 20840.8 Transformer Part 8: Electronic Current Transformer

GB 26860 Electrical Safety Work Rules for the Electrical Part of Power Plants and Substations

DL/T 860 (all parts) Substation communication network and system

DL/T 995 Inspection Regulations for Relay Protection and Power Grid Security Automatic Devices

3 Terms and definitions

The terms and definitions defined in GB/T 20840.7, GB/T 20840.8, GB 26860, DL/T 860 (all parts), and DL/T 995 are suitable Used in this document.

4 General requirements

4.1 In addition to the implementation of GB 26860, the on-site work of smart substations should also comply with the provisions of this standard on secondary safety measures.

4.2 On-site operators should understand the working location, scope of work, electrical main wiring, related primary equipment and secondary equipment operation, and be familiar with Relay protection, power grid security automatic devices and related secondary circuits, fully assess the impact of field operations on related secondary equipment or circuits.

4.3 The on-site work should comply with relevant regulations or rules such as work tickets, operation tickets, secondary work safety measures (tickets), standardized operations, and risk identification. system.

4.4 The management and control of smart substation configuration files should be done well.

4.5 On-site work should comply with relevant regulations and systems for information security, and dedicated computers should be used for information operations such as online and file copying. And secure storage media.

4.6 In the process of on-site work, in the event of an abnormal situation or a circuit breaker tripping, the work should be stopped immediately, and the status quo should be maintained, pending investigation of the cause. determine It has nothing to do with this job and can only continue to work after getting permission. If the abnormal situation or the tripping of the circuit breaker is caused by its own work, the site should be kept And immediately notify the operation and maintenance personnel for timely processing.