GB/T 51072-2014 in English

1 General provisions

1.0.1 This code was formulated in order to standardize the technical principles of smart substation design, to make the design of substation meeting the relevant national policies and regulations, to achieve safety and reliability, advanced application, economy and rationality, energy conservation and environmental protection.
1.0.2 This code is applicable to the design of construction engineering of smart substation (switching station) with AC voltage of 110(66)kV~220kV.
1.0.3 Smart substations shall be featured by digitalization of information collection, networking of communication platforms, standardization of information sharing, integration of system functions, compact structural design, intelligence of high-voltage equipment, and visualization of operation status, etc.
1.0.4 Reliable, economical, integrated, energy-saving and environment-friendly technologies and equipment shall be adopted for the design of smart substations, meeting the requirements for industrial application which shall be easy to expand, upgrade, transform and maintain.
1.0.5 In addition to this code, the design of 110(66)kV~220kV smart substation shall meet the requirements of the current relevant standards of the nation.

2 Terms
2.0.1 substation automation system (SAS)

a system for operating, protecting, monitoring and controlling the primary system of the substation, it realizes the automation in the substation, including the smart electronic equipment and communication network facilities
2.0.2 condition-based monitoring of equipment

through sensors, computers, communication networks and other technologies to obtain various characteristic parameters of the reaction equipment under normal operation in time, and analysis and processing are carried out by using expert system software with a certain algorithm, so that the operation state and reliability of the equipment can be judged, and potential faults can be found as early as possible, thus assisting the state maintenance decision

Foreword ii
1 General provisions
2 Terms
3 Location selection and general layout of the substation
3.1 Selection of the substation location
3.2 General layout
4 Primary electrical
4.1 Main electrical connection
4.2 Main high voltage equipment selection
4.3 Switchgear and reactive power compensation
4.4 Over-voltage protection and grounding
4.5 AC station service
4.6 Lighting
4.7 Cable selection and laying
5 Secondary electrical
5.1 Relaying protection and security automation equipment
5.2 Power dispatching automation system
5.3 Communication
5.4 Substation automation system
5.5 DC power system and uninterruptable power supply (UPS)
5.6 Time synchronization system
5.7 Auxiliary control system
5.8 Secondary equipment layout and cabinet assembling
5.9 Secondary parameter requirements of transformer
6 Civil works
6.1 Buildings and structures
6.2 Heating, ventilation and air conditioning
6.3 Water supply and drainage
7 Fire protection
8 Energy saving and environmental protection
8.1 Energy saving
8.2 Environmental protection
9 Labour safety and occupational health
Annex A Schematic of substation automation system
Explanation of wording in this code
Lists of quoted standards