GB/T 40435-2021
Technical specifications for substation data communication gateway (English Version)
- Standard No.
- GB/T 40435-2021
- Language
- Chinese, Available in English version
- Release Date
- 2021
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Latest
- GB/T 40435-2021
- Scope
- This standard specifies the functional requirements, performance requirements, other technical requirements and test methods of substation data communication gateway machines. This standard is applicable to the design, equipment development, testing and acceptance of substation data communication gateway machines with voltage levels of 35kV and above. Data communication gateway machines related to power plants can be implemented as a reference.
- Introduction
Analysis of the core content of the standard
Technical dimensions Core requirements Typical parameters Functional requirements Data acquisition/processing/remote transmission, remote control, time synchronization Support 6 protocols including DL/T860 Performance indicators Response time, communication capacity, reliability Remote signal response ≤200ms, MTBF ≥30000h Electromagnetic compatibility 10 types of immunity test Electrostatic discharge level 4 (8kV)
Detailed explanation of key technical requirements
1. Communication architecture design
The gateway needs to adopt a dual network redundant architecture, support 255 IED access, and have:
- Multi-master station communication of DL/T634.5104 and other protocols
- Automatic channel switching (switching time ≤10s)
- IRIG-B timing accuracy <1ms
2. Security protection mechanism
The standard emphasizes:
Case: Remote control operation must be authenticated by a digital certificate, and the operation log records complete fields including operator, object, time, result, etc., with a storage period of ≥1 year
Implementation recommendations
Key points for acceptance testing
- Performance verification: Simulate 200-point/second remote signal impulse test
- Protocol compatibility: Need to test the quality code conversion between DL/T860 and IEC62361-2
- Environmental adaptability: -40℃~70℃ temperature gradient test
Standard evolution analysis
Compared with the old version, the 2021 version adds:
- Remote browsing function (CIM/VG graphic standard)
- Oscillating wave immunity test requirements
- RCD configuration file format specified in Appendix C
GB/T 40435-2021 Referenced Document
- DL/T 1171 Power grid equipment common model naming specification
- DL/T 1403 Technical specifications for smart substation monitoring and control system
- DL/T 476 Application-level protocol for real-time data traffic in electric power system
- DL/T 634.5101 Telecontrol Equipment and Systems Part 5-101: Transmission Protocol Basic Telecontrol Task Supporting Standards*， 2022-05-13 Update
- DL/T 634.5104 Telecontrol equipment and systems.Part 5-104:Transmission protocols-Network access for IEC 60870-5-101 using standard transport profiles
- DL/T 667 Telecontrol equipment and systems.Part 5:Transmission protocols.Section 103 Companion standard for the information interface of protection equipment
- DL/T 719 Telecontrol equipment and systems.Part 5:Transmission protocol.Section 102:companion standard for the transmission of integrated totals in electric power systems
- GB/T 13729 Remote terminal unit equipment
- GB/T 15153.2 Telecontrol equipment and systems Part 2: Operating conditions Section2: Environmental conditions (Climatic,mechanical and other non-electrical influences)
- GB/T 17626.10 Electromagnetic compatibility—Testing and measurement techniques—Damped oscillatory magnetic field immunity test
- GB/T 17626.11 Electromagnetic Compatibility Testing and Measurement Techniques Part 11: Voltage Dips, Short Interruptions and Voltage Variation Immunity Tests for Equipment with Input Current Less than or Equal to 16 A per Phase*， 2023-05-23 Update
- GB/T 17626.12 Electromagnetic Compatibility Testing and Measurement Techniques Part 12: Ringing Wave Immunity Test*， 2023-03-17 Update
- GB/T 17626.2 Electromagnetic compatibility.Testing and measurement techniques.Electrostatic discharge immunity test
- GB/T 17626.29 Electromagnetic compatibility Testing and measurement techniques Voltage dips， short interruptions and voltage variations on d.c.input power port immunity tests
- GB/T 17626.3 Electromagnetic compatibility test and measurement technology Part 3: Radio frequency electromagnetic field radiation immunity test*， 2023-12-28 Update
- GB/T 17626.4 Electromagnetic compatibility－Testing and measurement techniques－Electrical fast transient/burst immunity test
- GB/T 17626.5 Electromagnetic compatibility—Testing and measurement techniques－Surge immunity test
- GB/T 17626.6 Electromagnetic compatibility—Testing and measurement techniques—Immunity to conducted disturbances,induced by radio-frequency fields
- GB/T 17626.8 Electromagnetic compatibility Testing and measurement techniques Power frequency magnetic field immunity test
- GB/T 17626.9 Electromagnetic compatibility. Testing and measurement techniques. Pulse magnetic field immunity test
- GB/T 2423.1 Environmental testing for electric and electronic products.Part 2:Test methods.Tests A:Cold
- GB/T 2423.2 Environmental testing for electric and electronic products.Part 2:Test methods.Tests B:Dry heat
- IEC 62361-2 Power systems management and associated information exchange - Interoperability in the long term - Part 2: End-to-end quality codes for supervisory control and data acquisition (SCADA)
GB/T 40435-2021 history
- 2021 GB/T 40435-2021 Technical specifications for substation data communication gateway