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GB/T 38969-2020Guide on technology for power system (English PDF)

电力系统技术导则

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

June 2, 2020

Implementation date

July 1, 2020

Scope

GB/T 38969-2020 is the English-translated version of 电力系统技术导则.

GB/T 38969-2020 is the Chinese standard "Guide on technology for power system".

Its scope clause reads: This standard specifies the basic technical requirements for power systems, power supply arrangements, power supply access, inter-system tie lines, DC transmission systems, transmission Receiving end system, reactive power compensation and voltage control, power system recovery after full shutdown, relay protection, safety automatic device, dispatch automation, power communication Letter system and other requirements.

This standard applies to power systems with voltage levels of 220kV and above. Power systems below 220kV (including distributed power sources) can Refer to execution. Its clauses include terms and definitions.

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Document preview — GB/T 38969-2020

National Standard of the People's Republic of China

ICS: 29.020
Classification: F 21

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Basic requirements of power system
5 Power supply arrangement
6 Power connection
7 Inter-system link
8 DC transmission system
9 Sending and receiving end system
10 Reactive power compensation and voltage control
11 Recovery after a total shutdown of the power system
12 Relay protection
13 Safety automatic device
14 Dispatching Automation
15 Electric Power Communication System

1 Scope

This standard specifies the basic technical requirements for power systems, power supply arrangements, power supply access, inter-system tie lines, DC transmission systems, transmission

Receiving end system, reactive power compensation and voltage control, power system recovery after full shutdown, relay protection, safety automatic device, dispatch automation, power communication

Letter system and other requirements.

This standard applies to power systems with voltage levels of 220kV and above. Power systems below 220kV (including distributed power sources) can

Refer to execution.

2 Normative references

The following documents are indispensable for the application of this document. For dated documents, only the dated version applies to this document.

For undated references, the latest version (including all amendments) applies to this document.

GB/T 26399 Technical Guidelines for Power System Security and Stability Control

GB/T 34122 220kV~750kV power grid relay protection and safety automatic device configuration technical specification

GB 38755-2019 Safety and Stability Guidelines for Power Systems

3 Terms and definitions

The following terms and definitions apply to this document.

3.1 Powersystem

It consists of power generation, power supply (transmission, transformation, distribution), electrical equipment, and relay protection and safety automatic equipment required to ensure its normal operation.

A unified whole constituted by secondary equipment such as deployment, dispatch automation, and power communications.

3.2 New energy station

All equipment below the grid connection point of wind farms or solar power stations that are integrated into the power system.

Note. Including transformers, bus bars, lines, converters, wind turbines, solar power generation systems, energy storage and auxiliary equipment, etc.

3.3 Load reserve capacity loadreserve

The reserve capacity of the system that is connected to the bus and can be loaded immediately to balance the power fluctuation and prediction caused by the instantaneous load or new energy

The deviation between.

3.4 Accident reserve capacity

The power capacity that can be used within a specified time after an accident occurs in the power system.

3.5 Maintenance reserve

In order to ensure that the power generation equipment in the system is regularly overhauled without affecting the power supply, according to the system's hydropower, thermal power, nuclear power coordination and annual load

Set as the reserve capacity for regular maintenance of power generation equipment under changes and other circumstances.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

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