XGN33
The 35kV air insulated ring main unit is a core backbone equipment for domestic high-voltage distribution networks, widely applicable to urban high-voltage distribution network main lines, large industrial enterprises, new energy bases, and cross regional distribution network projects. It uses dry air as the insulation medium, integrates core technologies such as high-voltage insulation strengthening, intelligent operation and maintenance deepening, and global adaptation, and has full functions such as main line power supply, ring network interconnection, fault isolation, and new energy grid connection. The equipment combines high voltage performance, environmental characteristics, and convenient operation and maintenance, and is a benchmark equipment for the construction and upgrading of high voltage distribution networks in China. Its application scenarios cover multiple fields such as electricity, industry, and new energy.
Accurately matching GB standards with mainstream parameters of domestic 35kV distribution networks, with excellent compatibility with existing distribution network equipment and scheduling systems, it can be connected to new projects and old distribution network upgrade projects without additional modifications, and has strong adaptability.
Built in multi parameter online monitoring modules for insulation status, partial discharge, temperature and humidity, supporting fault warning, remote control, and operation and maintenance data visualization. It can seamlessly integrate with domestic distribution network automation platforms to achieve unmanned operation and maintenance.
adopting low loss core components and optimized circuit design, the no-load loss is reduced by 15% compared to similar equipment, while reducing the loss in the voltage reduction process, helping the distribution network save energy and reduce consumption, in line with the “dual carbon” goal.
adopting standardized module design, supporting free combination of load switches, circuit breakers, metering units and other components, and can be flexibly expanded and upgraded according to project needs to adapt to the increasing demand of distribution network loads in different stages.
Execution standards: GB/T 3906-2020, IEC 62271-201; Rated current: 2500A-4000A; Short circuit breaking current: 31.5kA-40kA; Protection level: IP4X (outdoor type IP55); Installation methods: indoor floor standing, outdoor prefabricated, underground distribution room embedded; Optional configurations: Partial discharge monitoring module, intelligent metering terminal, electric energy storage operating mechanism.
Providing you with the most trusted energy solutions in an unpredictable world.
Contact Us| No. | Name | Unit | Value |
| 1 | Rated Voltage | kV | 35 |
| 2 | Rated Frequency | Hz | 50 |
| 3 | Rated Current of Main Busbar / Maximum Rated Current of Fuse | A | 630, 125 |
| 4 | Rated Short-time Withstand Current of Main Circuit & Grounding Circuit | kA/S | 20, 3 |
| 5 | Rated Peak Withstand Current of Main Circuit & Grounding Circuit | kA | 50 |
| 6 | Rated Short-circuit Making Current of Main Circuit & Grounding Circuit | kA | 50 |
| 7 | Full Capacity Opening Times of Load Switch | times | 100 |
| 8 | Fuse Breaking Current | kA | 31.5 |
| 9 | Rated Closed-loop Breaking Current | A | 630 |
| 10 | Rated Transfer Current | A | 1600 |
| 11 | Mechanical Life | times | 2000 |
| 12 | 1min Power Frequency Withstand Voltage (Peak) – Phase-to-Phase & Phase-to-Earth / Isolation Break | kV | 70/80 |
| 13 | Lightning Impulse Withstand Voltage (Peak) – Phase-to-Phase & Phase-to-Earth / Isolation Break | kV | 185/215 |
| 14 | 1min Power Frequency Withstand Voltage of Secondary Circuit | kV | 2 |
| 15 | Protection Class | IP3X |
It is necessary to match the voltage and current parameters of both to ensure compatibility of insulation strength, while reserving sufficient safety distance. The built-in overcurrent protection module of the equipment can be linked with the transformer protection system to avoid fault propagation.
It can be directly replaced, and the installation size and interface can be customized and adapted, without the need to reconstruct the layout of the distribution room. At the same time, it saves the cost of SF6 gas recovery and treatment, simplifies operation and maintenance, and meets the environmental protection upgrade needs of the distribution network.