- Telephone: +86-139-8977-9778
- Email: jack@toonice.com
- English
NSHBG-33
NSHBG-33 Environmentally friendly gas-insulated ring main unit
NSHBG-33 33kV environmentally friendly gas insulated ring main unit is a high-voltage equipment designed specifically for overseas cross-border power grid interconnection and large-scale cross-border infrastructure. It uses a mixture of N ₂ and low GWP fluorinated ketone gas (GWP value ≤ 20), integrates international high-voltage design and cross-border operation and maintenance technology, and its core components comply with the IEC 62271-203 international standard, and have passed multiple regional special certifications such as European CE, African SONCAP, and South American IRAM. The equipment can be customized with voltage frequency, power grid interface, and protection level, suitable for overseas cross-border power grid connection lines, large mining hubs, cross-border photovoltaic bases, and other scenarios, balancing cross-border power grid compatibility, extreme environmental tolerance, and global operation and maintenance convenience.
Features
1. Strong adaptability to cross-border power grids, supporting seamless switching of 50Hz/60Hz frequencies, voltage fluctuation range of ± 15%, compatible with different national power grid phase and amplitude standards, achieving stable interconnection of cross-border power grid interconnection lines.
2. It is fully tolerant to extreme environments, and the air box is made of stainless steel material and ceramic based composite coating, with a protection level of IP68. It can resist tropical high temperature and humidity, strong sand and dust in deserts, strong salt spray in coastal areas, and short-term floods, and is suitable for diverse climate scenarios overseas.
3. Integrating global compliance and operation and maintenance, providing multilingual intelligent control terminals (English, French, Spanish and Arabic), carrying 4G/5G/satellite the third mock examination communication, 18 service outlets and overseas warehouses around the world can achieve operation and maintenance response within 48 hours.
4. The high-voltage safety redundancy is sufficient, equipped with dual insulation monitoring and fault locking devices. The high-voltage circuit adopts a fully sealed design to avoid the risk of electric shock and arc leakage, which complies with overseas high-voltage safety regulations.
Rated current range: 1250A-3150A, rated short-circuit breaking current: 25kA-31.5kA, suitable for ambient temperatures ranging from -45 ℃ to+85 ℃, with an average time between failures (MTBF) of ≥ 180000 hours. The gas box has passed ISTA 4A cross-border transportation certification and is equipped with shock absorption buffering and vacuum sealed packaging, suitable for long-distance bumps and impacts by sea and land transportation. Support fault recording, harmonic analysis, and synchronous phasor monitoring functions, compatible with mainstream overseas power grid dispatch platform protocols.
Let’s Get Started
Providing you with the most trusted energy solutions in an unpredictable world.
Contact UsRequest an Insurance Quote
Specification
| Serial No. | Item | PT Module | V Module | |
| Disconnecting Switch | Vacuum Circuit Breaker | Isolation/Earth Switch | ||
| 1 | Rated Voltage | 33 | ||
| 2 | 1min Power Frequency Withstand Voltage | 70/80 | ||
| 3 | Lightning Impulse Withstand Voltage | 185/215 | ||
| 4 | Rated Current | 630 | 630 | 630 |
| 5 | Short-Circuit Breaking Current | 20 | ||
| 6 | Short-Circuit Making Current | 50 | ||
| 7 | Short-Time Withstand Current | 20 | 20 | 20 |
| 8 | Short-Circuit Duration | 4 | 4 | 4 |
| 9 | Mechanical Life | 5000 | 10000 | 5000 |
| 10 | Gas Pressure | 0.025（20℃） | ||
| 11 | Annual Leakage Rate | ≤0.01% | ||
| 12 | Arc Extinguishing Method | Vacuum Arc Extinguishing | ||
| 13 | Protection Class | IP67/4X (Tank/Enclosure) | ||
Download
Related Products
FAQs
How does this device ensure the synchronous operation of cross-border power grid interconnection lines?
Equipped with a synchronous phasor monitoring module, it can synchronize the phase, frequency, and voltage amplitude of the two ends of the power grid in real time, automatically adjust the closing timing, avoid the impact current generated by asynchronous grid connection, and support linkage with cross-border power grid dispatch centers to achieve remote synchronous control.
Is the equipment's heat dissipation and insulation performance stable in the high-temperature environment of the African desert?
Stable, the air box adopts a high-efficiency heat sink+forced ventilation composite heat dissipation design, which can maintain rated operating performance in a high temperature environment of 85 ℃. The insulation strength of the mixed gas is minimally affected by temperature, and there is no insulation degradation hazard.
Does the multilingual control terminal support localized operation habits customization?
Support, customizable interface layout, operation logic, and warning signs based on target area operation habits, while providing localized operation manuals and video tutorials to meet the operational needs of overseas operation and maintenance personnel.
Related Applications
Overseas cross-border power grid connection line scenario: adapted to the cross-border power grid interconnection needs in Europe, Africa and other regions, it can achieve stable connection and power mutual benefit of 33kV power grids in different countries, and synchronous phasor monitoring function ensures grid synchronization and avoids power grid fluctuation transmission. The the third mock examination communication module can transmit data via satellite in the area without ground network, which is convenient for the centralized management and control of the transnational power grid dispatching center. The environmental protection gas complies with the environmental protection laws and regulations of various countries, and avoids cross-border environmental protection trade barriers.
Distribution scenarios for large mining hubs in Africa: Targeting the high voltage distribution needs of large mines in central and southern Africa, the equipment is designed to withstand the harsh environment of open-pit mining operations with anti dust and high temperature resistance. The sealed air box can isolate ore dust and oil pollution, avoiding component wear and failure. The large capacity design can support centralized power supply for mining machinery, beneficiation equipment, and mining living facilities. The remote operation and maintenance function reduces on-site operation and maintenance personnel configuration and lowers overseas mining operation and maintenance costs.
Power distribution scenario of Southeast Asia cross-border photovoltaic base: In response to the climate characteristics of Southeast Asia cross-border photovoltaic base, such as high temperature and humidity, frequent rainstorm, IP68 protection level can withstand short-term flood immersion, and anti condensation design can avoid water vapor affecting insulation performance. It can achieve high-capacity grid connection and cross-border power transmission of photovoltaic bases. The modular design can gradually expand with the expansion of photovoltaic arrays, and the multilingual control terminal is convenient for local operation and maintenance personnel in Southeast Asia to operate, helping cross-border clean energy projects to land.
Middle East cross-border oil and gas pipeline supporting distribution scenario: In response to the remote and harsh environment along the Middle East cross-border oil and gas pipeline, the special anti-corrosion coating of the equipment can resist seawater salt spray and oil and gas corrosion, and the wide temperature tolerance can cope with high temperatures in deserts and low temperatures at night. To supply power to pipeline pressurization stations, metering stations, and security monitoring equipment, the satellite communication module enables remote control, reduces the frequency of inspections along the line with low operation and maintenance characteristics, and ensures the safe cross-border transportation of oil and gas pipelines.
