GB/T 43769-2024
Intercity maglev transportation, medium and low speed maglev ground equipment, traction power supply system (English Version)
- Standard No.
- GB/T 43769-2024
- Language
- Chinese, Available in English version
- Release Date
- 2024
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China CN / GB
- Latest
- GB/T 43769-2024
- Introduction
1. Background and significance of standard formulation
GB/T 43769-2024 "Traction power supply system for medium and low speed maglev transportation" is an important standard formulated to meet the needs of the development of inter-city medium and low speed maglev transportation and to regulate the composition, technical requirements and test methods of its traction power supply system. The release of this standard marks a key step in the standardization construction of my country's maglev transportation field, filling the gap in the domestic medium and low speed maglev transportation electrical equipment standards.
2. System composition and technical requirements
System composition Technical requirements Key parameters Traction substation - The number, capacity and layout are determined according to the line conditions; - The AC medium voltage bus adopts a single bus or segmented wiring, and the DC bus adopts a single bus. Nominal voltage: 750V, 1500V Traction network - Including contact rail system, feeder cable and return cable; - The dynamic contact force calculation is required for the current matching between the contact rail and the receiving shoe. Dynamic contact force range: maximum 500N, minimum V0 Contact rail system - Steel-aluminum composite rails are used, and the positive and negative poles are arranged separately; - Expansion joints and ordinary joints must ensure electrical continuity. Current carrying capacity: not less than the current carrying capacity of the steel-aluminum composite rail body 3. Requirements for key equipment and components
Medium voltage AC switchgear and DC switchgear must comply with the provisions of GB/T 3906 and GB/T 10411, and rectifier transformers and rectifiers must comply with the technical standards of CJ/T 370 and GB/T 18494.1. The strength safety factor of the supporting device must meet the requirements in the table, and the tensile safety factor of the composite insulator must be ≥5.0.
4. Implementation suggestions and application cases
Case analysis: Implementation of traction power supply system for an intercity maglev line
In actual applications, it is recommended to strictly follow the standards for equipment selection and system design. For example, when selecting a rectifier unit, the equivalent 24-pulse rectifier method should be used first, and its load characteristics should be ensured to meet the requirements of Class VI. At the same time, high-efficiency and energy-saving equipment should be used for the ground utilization system of regenerative braking energy to reduce energy waste.
During the test phase, it is necessary to focus on cross-zone power supply testing and DC short-circuit testing of the traction network to ensure the stability and safety of the system. Through the monitoring and analysis of actual operation data, the performance parameters of the traction power supply system are continuously optimized.
GB/T 43769-2024 Referenced Document
- CJ/T 370 Technical requirements of D.C traction power supply rectifier unit for urban rail transit
- CJ/T 414 Technical requirements of aluminum-steel conductor rail for urban rail transit
- DL/T 459 DC power supply equipment for electric power
- DL/T 637 Stationary valve-regulated lead-acid batteries for electric power
- DL/T 781 High frequency switch rectifier module for electric power
- GB 50053 Code for design of 20kV and below substation
- GB 50059 Code for design of 35kV～110kV substation
- GB 50060 Code for design of high voltage electrical installation(3～110kV)
- GB/T 1001.1 Insulators for overhead lines with a nominal voltage above 1 000V—Part 1:Ceramic or glass insulator units for a.c.systems—Definitions,test methods and acceptance criteria
- GB/T 10228 Technical parameters and requirements for dry-type power transformers
- GB/T 10411 Urban Rail Transit DC Traction Power Supply System*， 2025-10-31 Update
- GB/T 11022 Common specifications for high-voltage alternating-current switchgear and controlgear standards
- GB/T 13422 Semiconductor converters.Electrical test methods
- GB/T 14048.1 Low voltage switchgear and controlgear Part 1: General principles
- GB/T 14285 Technical regulations for relay protection and safety automatic devices
- GB/T 14846 Tolerances on dimensions and form of aluminium and aluminium alloy extruded profiles
- GB/T 18494.1 Converter transformers.Part 1:Transformers for industrial applications
- GB/T 19443 Insulators for overhead lines with a nominal voltage above 1500V—Ceramic or glass insulator units for d.c. systems—Definitions,test methods and acceptance criteria
- GB/T 22707 Artificial pollution tests on high-voltage insulators to be used on d.c.systems
- GB/T 28026.1 Railway applications—Fixed installations—Electrical safety, earthing and the return circuit—Part 1: Protective provisions against electric shock
- GB/T 2900.36 Electrotechnical terminology—Electric traction
- GB/T 311.1 Insulation co-ordination.Part 1:Definitions,principles and rules
- GB/T 311.2 Insulation co-ordination.Part 2:Application guide
- GB/T 32579 Railway application.Fixed installations.Harmonisation of the rated values of the converter groups and tests on converter groups
- GB/T 32593 Railway applications.Fixed installations.Electronic power converters for substations
- GB/T 33862 Automatic（semi）Kjeldahl analyzer
- GB/T 37423 Urban rail transit inverter for regenerative braking energy absorption
- GB/T 3859.1-2013 Semiconductor converters.General requirements and line commutated converters.Part 1-1:Specification of basic requirements
- GB/T 3906 Alternating-current metal-enclosed switchgear and controlgear for rated voltages above 3.6 kV and up to and including 40.5 kV
- GB/T 4023 Semiconductor devices Discrete devices and integrated circuits Part 2: Rectifier diodes
- GB/T 4237-2015 Hot rolled stainless steel plate,sheet and strip
- GB/T 50064 Code for design of overvoltage protection and insulation coordination for AC electrical installations
- GB/T 50065 Code for design of ac electrical installations earthing
- GB/T 6892-2015 Wrought aluminium and aluminium alloys extruded profiles for general engineering
- JB/T 501 Power Transformer Test Guidelines
- JB/T 8456 Low voltage DC complete switchgear and control equipment
- TB/T 2074 Test methods for electrified railway catenary components
GB/T 43769-2024 history
- 2024 GB/T 43769-2024 Intercity maglev transportation, medium and low speed maglev ground equipment, traction power supply system
