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NSGTG-33
NSGTG-33 Solid Insulated Switchgear
The 33kV solid insulated ring main unit is a specialized high-voltage equipment designed for mainstream overseas ultra-high voltage distribution network standards (such as some countries in Southeast Asia, Africa, and Oceania) and customized needs of a few special industries in China. It adopts weather resistant ultra-high voltage epoxy resin integrated casting technology, fully seals and encapsulates high-voltage core components, strictly follows international regional standards such as IEC 62271 and BS EN 50027, and is suitable for ultra-high voltage ring network power supply under 33kV voltage level, outdoor harsh working condition distribution, and high-end industrial special distribution needs. The product has the characteristics of deep adaptation to regional standards, extreme weather resistance, and strong customization, and is the core solution for overseas ultra-high voltage distribution networks and domestic special scenarios.
Features
1. Precise adaptation to regional standards and complete certification:
Accurately matched with Southeast Asian and African 33kV distribution network standards, passed CE, T Ü V, SASO and other regional certifications, the cabinet structure and electrical parameters fully comply with local installation and operation specifications, and can be directly connected to the local distribution network system without the need for secondary modification.
2. Ultimate weather resistance, worry free in complex working conditions:
Optimized insulation materials and cabinet structure, capable of stable operation in extreme temperatures ranging from -50 ℃ to+90 ℃, high altitudes (≤ 5200m), strong salt spray, desert dust, and strong ultraviolet environments, especially suitable for harsh working conditions such as African deserts and Southeast Asian rainforests.
3. Customized architecture is flexible and covers diverse needs:
voltage frequency, operating mechanism, and protection level can be customized according to overseas project requirements, supporting special modifications such as explosion-proof, anti vibration, and multilingual controllers. It is also suitable for outdoor container deployment and indoor compact installation, meeting differentiated scene requirements.
4. Low noise, environmentally friendly and energy-saving, suitable for daily life scenarios:
optimized switch arc extinguishing structure and cabinet sound insulation treatment, operating noise ≤ 50dB, far lower than traditional equipment of the same level; No SF6 gas leakage and insulation oil loss, in line with overseas livelihood distribution network and environmental protection policy requirements.
5. Overseas operation and maintenance support, complete service system:
providing multilingual installation manuals, video guidance, and overseas on-site debugging services, with strong universality of core spare parts. Spare parts warehouses are set up in key areas of Southeast Asia and Africa, with after-sales response time ≤ 48 hours, to solve overseas project operation and maintenance problems.
Execution standards: IEC 62271-200, BS EN 50027, GB/T 11022, CE/T Ü V/SASO certification; Rated parameters: rated current 1250A-1600A, rated short-circuit breaking current 31.5kA-40kA, rated short-time withstand current 40kA/4s, protection level IP55-IP65, suitable for 50Hz/60Hz dual frequency; Material configuration: weather resistant UV resistant epoxy resin, oxygen free copper conductor, reinforced anti-corrosion cold-rolled steel plate cabinet; Customized services: support desert dust protection, rainforest moisture-proof design, multilingual controller, explosion-proof module installation, and provide overseas on-site technical support.
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Specification
| Name | Unit | Parameter | |||
| Rated voltage | kV | 33 | |||
| Rated frequency | Hz | 50 | |||
| Current rating | A | 630 | 1250 | ||
| Rated insulation level | Power frequency withstand voltage | Fracture | kV | 80 | |
| Fireline to Fireline | kV | 70 | |||
| Fireline to ground | kV | 70 | |||
| Withstand voltage for lightning impulses | Fracture | kV | 215 | ||
| Fireline to Fireline | kV | 185 | |||
| Fireline to ground | kV | 185 | |||
| Rated short-circuit interrupting current(1s) | kA | 20 | 25 | ||
| Rated short-time withstand current(4s) | kA | 20 | 25 | ||
| Rated peak withstand current(1p) | kA | 50 | 63 | ||
| Rated short-circuit closing current (peak)(1ma) | kA | 50 | 63 | ||
| Enclosure rating | IP4X | ||||
| Operating mode | Spring-loaded energy storage | ||||
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FAQs
Does the product meet the distribution network certification requirements in Southeast Asia?
It has passed the CE, T Ü V certification and local network testing required in Southeast Asia. The electrical parameters and protection performance meet the requirements of 33kV distribution network projects in Indonesia, Malaysia and other countries, and can be directly put into use.
How to deal with extreme heat and dust when used in desert areas of Africa?
Adopting a desert specific heat dissipation structure and an efficient dust filtration device, it can withstand extreme high temperatures of 90 ℃ and strong wind sand erosion. The filtration device can be easily disassembled and cleaned without the need for professional tools, and is suitable for long-term operation in deserts.
What are the mainstream overseas languages supported by the multilingual controller?
Standard configuration includes Chinese, English, French, Spanish, and Arabic, with the option to add Indonesian and Swahili as needed. The user interface is simple and easy to understand, adapting to the habits of operators from different countries.
Can the product be adapted to outdoor containerized centralized deployment scenarios?
Support, customizable container adaptation size and installation interface, optimized cabinet structure to resist vibration and impact during container transportation and deployment, while having good ventilation and heat dissipation performance to avoid high temperature accumulation.
What are the differences in core adaptation scenarios compared to 30kV products?
33kV specially designed for overseas regional standards, focusing on ultra-high voltage distribution networks in Southeast Asia and Africa; 30kV focuses on domestic transition and South American scenarios, with core differences in regional standards and voltage adaptability.
Related Applications
Municipal ultra-high voltage distribution network in Southeast Asian rainforest region:
Suitable for urban ultra-high voltage distribution networks in rainforest areas of Southeast Asian countries such as Indonesia and Malaysia. Such scenarios involve high temperatures and humidity, heavy rainfall, frequent lightning strikes, and require extremely high weather resistance and regional certification for equipment. The 33kV ring main unit rainforest dedicated moisture-proof structure and IP65 sealing protection can resist the erosion of high humidity and rainstorm. The lightning overvoltage resistant design can cope with the frequent lightning conditions in rainforest. With complete regional certification, it can be directly integrated into the local distribution network to provide stable ultra-high voltage power supply for urban backbone networks, residential communities and commercial centers.
Distribution network for mineral development in desert regions of Africa:
Suitable for mineral development and distribution network scenarios around the Sahara Desert in Africa, such scenarios are extremely hot, dusty, high-altitude, and use a voltage level of 33kV, with limited operation and maintenance conditions. The product is designed for desert specific heat dissipation and dust prevention, which can withstand high temperatures above 80 ℃ and strong sandstorms. Its high-altitude adaptability can cope with high-altitude working conditions around the desert. With low maintenance characteristics, it does not require frequent personnel inspections, which is in line with the shortage of mineral development and operation personnel in Africa. It provides stable power supply for mining equipment and ventilation and drainage systems.
Supporting distribution network for overseas large-scale hydropower stations:
Suitable for supporting distribution networks of large hydropower stations in Southeast Asia and Africa, such scenarios are mostly located in remote mountainous areas with humid environments, frequent vibrations, and require access to local 33kV ultra-high voltage distribution networks. The anti vibration structure and moisture-proof design of the product can adapt to the working conditions of hydropower stations, stably receive the output electrical energy of hydro generator units and connect it to the regional backbone network. The multilingual controller is easy for local operation and maintenance personnel to operate, and the perfect after-sales support can solve the operation and maintenance problems in remote areas, helping hydropower stations to efficiently connect to the grid for power generation.
