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GB/T 51072-2014 English PDF

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GB/T 51072-2014: Code of design of 110 (66) kV～220kV smart substation
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Basic data

Standard ID GB/T 51072-2014 (GB/T51072-2014)
Description (Translated English) Code of design of 110 (66) kV��220kV smart substation
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard J15
Classification of International Standard 23.040.70
Word Count Estimation 62,618
Date of Issue 12/2/2014
Date of Implementation 8/1/2015
Quoted Standard GB 50016; GB 50019; GB 50034; GB 50054; GB 50059; GB 50060; GB/T 50065; GB 50116; GB 50140; GB 50189; GB 50217; GB 50227; GB 50229; GB/T 2887; GB 3096; GB 8702; GB 9175; GB/T 9361; GB 12348; GB/T 14285; GB 15707; GB 20840.7; GB 20840.8; GB 23864; GB/T 301
Regulation (derived from) Housing and Urban-Rural Development Ministry Bulletin No. 668
Issuing agency(ies) Ministry of Housing and Urban-Rural Development of the People's Republic of China; General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
Summary This Standard applies to AC voltage of 110 (66) kV ~ 22OkV intelligent substation (switchyard) new construction design.

GB/T 51072-2014: Code of design of 110 (66) kV～220kV smart substation

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
1 General 1 General 1.0.1 In order to standardize the design technical principles of smart substations, make the design of substations conform to the relevant national policies and regulations, and achieve safety, reliability, advanced application, reasonable economy, energy saving and environmental protection, this specification is formulated. 1.0.2 This specification is applicable to the design of new construction of smart substations (switching stations) with AC voltages of 110 (66) kV ~ 220 kV. 1.0.3 Smart substations should have technical features such as digitized information collection, networked communication platform, standardized information sharing, integrated system functions, compact structure design, intelligent high-voltage equipment, and visualized operating status. 1.0.4 The design of smart substations should adopt reliable, economical, integrated, energy-saving, and environmentally friendly technologies and equipment, and meet the industrial application requirements of easy expansion, easy upgrade, easy transformation, and easy maintenance. 1.0.5 The design of 110(66)kV～220kV intelligent substation shall not only comply with this specification, but also comply with the current relevant national standards.

2 terms

2.0.1 substation automation system (SAS) The system of operation, protection and monitoring and control of the primary system of the substation realizes the automation in the substation, including the automation of intelligent electronic devices and communication network facilities. 2.0.2 Condition-based monitoring of equipment-ment Through sensors, computers, communication networks and other technologies, various characteristic parameters that reflect the normal operating state of the equipment can be obtained in time, and the expert system software with a certain algorithm can be used for analysis and processing, and the operating state and reliability of the equipment can be judged, so as to detect early Potential failures, aiding condition-based maintenance decisions. 2.0.3 supervision and control system of substation A system for continuous or periodic monitoring and control of systems or equipment in substations, through monitoring to verify that functions are being performed correctly, and to adapt their working conditions to changing operating requirements. 2.0.4 Generic object oriented substation event(GOOSE) A mechanism to meet the fast message requirements of the substation automation system, abbreviated as "GOOSE". It is mainly used to realize information transmission between multiple IEDs, including adjusting tripping and closing signals, and has a high probability of successful transmission. 2.0.5 sampled value sampled value (SV) Based on the publish/subscribe mechanism, exchange related model objects and services in the sample data set, and the mapping between these model objects and services and ISO /IEC 8802-3 frames. 2.0.6 smart terminal An intelligent component, which is connected with the primary equipment by cables, and connected with secondary equipment such as protection and measurement and control by optical fibers, so as to realize the measurement and control functions of the primary equipment (such as circuit breakers, isolation switches, main transformers, etc.). 2.0.7 Integrated device integrated device According to a certain integration principle, such as the controlled object, input data quality requirements or control strategy optimization, a system composed of one or several IEDs is formed by integrating different functions carried by different conventional IEDs, in order to achieve simplification The purpose of secondary equipment configuration, reducing repeated collection of information, and optimizing control strategies. 2.0.8 prefabricated optical cable prefabricated optical cable After factory pretreatment, one or both ends of the optical cable are connected with various types of optical fiber connectors as required, which can realize the connection of the prefabricated end at the construction site without fusion splicing point or direct connection of the optical cable. 2.0.9 smart control cabinet Cabinets for the installation of smart components. The intelligent control cabinet provides dust-proof, rain-proof, salt-fog-proof, electromagnetic-disturbance-proof protection facilities for each IED and network communication equipment of the intelligent components, as well as power supply, electrical interface, temperature (humidity) control, lighting and other operating facilities, so that Smart components are able to operate safely in the substation field environment for a long time.

3 Site selection and general layout

3.1 Site selection 3.1.1 Site selection should comply with the current industry standard "Technical Regulations for Design of 220kV～750kV Substations" DL/T 5218. 3.1.2 The station site should be determined according to the requirements of the power system, in line with urban and rural planning, and after considering factors such as incoming and outgoing line conditions, equipment transportation, water supply, power supply, and flood and waterlogging prevention facilities, after technical and economic comparisons. 3.1.3 The station site should have suitable geological and topographical conditions, and should avoid unfavorable geological structures such as landslides, mud-rock flows, subsidence areas and earthquake fracture zones. 3.1.4 When selecting the station site, the land should be used rationally, the land should be saved, no or less cultivated land and land with high economic benefits should be occupied, and the amount of earth and stone should be reduced. 3.1.5 When selecting the station site, the overall coordination between the substation, adjacent facilities and the surrounding environment should be done well, natural reserves and cultural relics should be avoided, and mineral resources should not be covered, and written permission or agreement from relevant departments should be obtained when necessary. 3.2 General layout 3.2.1 The general layout shall comply with the current industry standards "Technical Regulations for Design of 220kV～750kV Substations" DL/T 5218 and "Technical Regulations for Substation General Layout Design" DL/T 5056. 3.2.2 The position and direction of the general plane, the access road, the drainage path, the direction and form of the line entry and exit shall be determined in combination with the environmental conditions of the site and planning requirements. 3.2.3 The general layout should be based on the process requirements, using the natural terrain, the layout should be compact and reasonable, and convenient for expansion. 3.2.4 The architectural layout should be planned in a unified manner according to the technical requirements and the use functions. It is advisable to adopt a joint building form in combination with the engineering conditions to improve the efficiency of site use and save land. 3.2.5 The type selection of power distribution devices should be adapted to local conditions. When the technical and economic indicators are reasonable, it is advisable to adopt a type of power distribution device that occupies less land. 3.2.6 The vertical design should be coordinated with the existing or planned roads, drainage system, site elevation, etc. around the station site, and flat slope or stepped layout should be adopted, and gravity drainage should be used for the drainage of the station area. 3.2.7 For optical cables and cable channels, trenches, groove boxes, tunnels and cable buried pipes should be selected according to the process and site conditions. 3.2.8 The enclosure wall should be a solid wall with a height of not less than 2.3m, and an electronic fence should be installed on the top of the enclosure wall. 3.2.9 The gate should adopt a light solid gate.

4 electrical once

4.1 Electrical main wiring 4.1.1 The design of electrical main wiring of 220kV substation shall comply with the current industry standard "220kV ~ 750kV Substation Design Technical Regulations" DL/T 5218; the design of 110(66)kV substation electrical main wiring shall comply with the current national standard Relevant provisions of GB 50059 Code for Design of Substations. 4.1.2 The electrical main wiring should be determined according to the position of the substation in the power system, the planned capacity of the substation, the nature of the load, the total number of components connected to the line and transformer, and the characteristics of the equipment, and should meet the requirements of reliable power supply, flexible operation, investment saving and convenience. Requirements such as transition or expansion. 4.1.3 Under the condition that the power supply is safe and reliable, the wiring should be simplified. When the number of initial circuits is small, the layout should meet the feasibility of the transition to the final wiring. 4.2 Selection of high voltage equipment 4.2.1 The selection of high-voltage equipment should comply with the relevant provisions of the current industry standard "Technical Regulations for Selection and Design of Conductors and Electrical Appliances" DL/T 5222. 4.2.2 High-voltage equipment with high reliability, low maintenance, economical and environmental protection should be selected. 4.2.3 The selection of high-voltage equipment should comprehensively consider the requirements of digital measurement, status visualization, functional integration and information interaction. 4.2.4 The configuration of high-voltage equipment should meet the principles of safety, effectiveness, reliability, necessity and economy. A reasonable intelligent configuration scheme should be determined based on operational requirements and comprehensive consideration of factors such as voltage level and equipment importance. 4.2.5 The main transformer and high-voltage reactor can be configured according to the actual needs of the project, through the sensors installed on the equipment body, and the relevant intelligent components can be configured to realize the intelligent control of the cooling device and the on-load tap changer, and the state monitoring IED can be configured to realize the corresponding state monitoring. 4.2.6 Combined electrical appliances (GIS and HGIS) can be configured to realize intelligent control through sensors installed in combined electrical appliances according to the actual needs of the project, and related intelligent components can be configured to realize intelligent control, and status monitoring IEDs can be configured to realize corresponding status monitoring. 4.2.7 According to the actual needs of the project, the column circuit breaker can be configured with relevant intelligent components to realize intelligent control through the sensors installed on the high voltage circuit breaker, and equipped with state monitoring IED to realize corresponding state monitoring. 4.2.8 The 220kV voltage level surge arrester should be equipped with the monitoring function of the number of operations, leakage current, resistive current and other parameters. 4.2.9 The selection of transformers should meet the following requirements. 1 110 (66) kV ~ 220kV voltage level can use electronic transformers, or conventional electromagnetic transformers. 2 The voltage level of 35kV and below can use conventional electromagnetic transformers or electronic transformers. 3 The electronic transformer shall comply with the relevant provisions of the current national standard "Transformer Part 7.Electronic Voltage Transformer" GB 20840.7 and "Transformer Part 8.Electronic Current Transformer" GB 20840.8. 4 The electronic transformer can be an independent device or integrated into other high-voltage equipment. 4.3 Power distribution device and reactive power compensation 4.3.1 The design of high-voltage power distribution devices shall comply with the relevant provisions of the current national standard "Code for Design of 3-110kV High-Voltage Power Distribution Devices" GB 50060 and "Technical Regulations for Design of High-Voltage Power Distribution Devices" DL/T 5352. 4.3.2 The design of high and low voltage shunt reactors, shunt capacitors and other reactive power compensation devices shall comply with the current national standard "Code for Design of Shunt Capacitor Devices" GB 50227 and "Technical Regulations for Design of Reactive Power Compensation Devices for 35kV～220kV Substations" DL/ The relevant provisions of T 5242. 4.3.3 When the substation has access to clean energy such as solar energy and wind energy, the configuration of the reactive power compensation device should meet the requirements of its access. 4.4 Overvoltage protection and grounding 4.4.1 The design of overvoltage protection and insulation coordination shall comply with the relevant provisions of the current industry standard "Overvoltage Protection and Insulation Coordination of AC Electrical Installations" DL/T 620. 4.4.2 The design of grounding shall comply with the relevant provisions of the current national standard "Code for Grounding Design of AC Electrical Installations" GB/T 50065. 4.5 Station power consumption 4.5.1 The power design of the substation shall comply with the current national standards "Code for Design of 35kV～110kV Substation" GB 50059, "Code for Design of Low Voltage Power Distribution" GB 50054 and "Technical Regulations for Design of Electricity Used in 220kV～500kV Substation" DL/T The relevant provisions of 5155. 4.5.2 According to the geographical conditions of the substation, clean energy such as solar energy and wind energy can be used as a supplement to the station power supply. 4.6 Lighting 4.6.1 The lighting design should comply with the current national standard "Architectural Lighting Design Standard" GB 50034 and the relevant provisions of "Technical Regulations on Lighting Design of Thermal Power Plants and Substations" DL/T 5390. 4.6.2 Automatic energy-saving control should be adopted for outdoor lighting, and induction control should be used for passage lighting of indoor buildings. 4.6.3 The lighting in the station should be controlled in conjunction with image monitoring, fire alarm, electronic fence, etc. 4.7 Optical and cable selection and laying 4.7.1 Cable selection and laying design should comply with the relevant provisions of the current national standard "Code for Design of Electric Power Engineering Cables" GB 50217.The design of cable fireproof sealing shall comply with the relevant provisions of the current national standard "Code for Fire Protection of Thermal Power Plants and Substations" GB 50229.Fireproof sealing materials shall comply with the relevant provisions of the current national standard "Fireproof Sealing Materials" GB 23864. 4.7.2 The indoor network communication connection of secondary equipment should use CAT5E shielded twisted pair, the network connection between different rooms should use optical cable, and the information transmission with high reliability requirements such as sampling value and protection GOOSE should use optical cable.

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