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NSGTG-17.5
NSGTG-17.5 Solid Insulated Switchgear
The 17.5kV solid insulated ring main unit is an exclusive equipment designed for specific overseas distribution network standards (such as some European countries and the Middle East) and customized needs of a few special industries in China. It adopts weather resistant epoxy resin integrated casting technology, fully sealed high-voltage core components, strictly follows international regional standards such as IEC 62271 and BS EN 50027, and is suitable for ring network power supply, terminal heavy load power supply, and outdoor harsh working condition distribution needs under 17.5kV voltage level. The product has the characteristics of deep adaptation to regional standards, extreme weather resistance, and strong customization, and is the core solution for 17.5kV distribution networks in specific overseas regions and domestic special industries.
Features
1. Deep adaptation to regional standards and complete certification:
Accurately matched with the 17.5kV distribution network standards in Europe and the Middle East, certified by CE, T Ü V, SASO and other regional standards, 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 renovation.
2. Ultimate weather resistance, worry free in harsh working conditions:
Optimized insulation materials and cabinet structure, capable of stable operation in extreme temperatures ranging from -45 ℃ to+80 ℃, high altitudes (≤ 4600m), strong salt spray, desert dust and other harsh environments, especially suitable for the working requirements of the Middle East desert and the high-altitude regions of Europe.
3. Customized architecture is flexible and adaptable to 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 installation and indoor compact deployment, meeting differentiated scene requirements.
4. Low noise and energy-saving design, suitable for people’s livelihood scenarios:
optimized switch arc extinguishing structure and cabinet sound insulation treatment, operating noise ≤ 55dB, far lower than traditional equipment of the same level, and no SF6 gas leakage or insulation oil loss, in line with the energy-saving, noise reduction and environmental protection requirements of overseas people’s livelihood distribution networks.
5. Overseas operation and maintenance adaptation, complete service guarantee:
providing multilingual installation manuals, video guidance, and overseas on-site debugging services. The core spare parts have strong universality, and spare parts warehouses are set up in key areas of Europe and the Middle East. The after-sales response time is ≤ 48 hours, solving the difficulties of overseas project operation and maintenance.
Execution standards: IEC 62271-200, BS EN 50027, GB/T 11022, CE/T Ü V/SASO certification; Rated parameters: rated current 800A-1250A, rated short-circuit breaking current 25kA-31.5kA, rated short-time withstand current 31.5kA/3s, protection level IP55-IP65, suitable for 50Hz 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, high-altitude frost resistance 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 | 17.5 | |||
| Rated frequency | Hz | 50 | |||
| Current rating | A | 630 | 1250 | ||
| Rated insulation level | Power frequency withstand voltage | Fracture | kV | 45 | |
| Fireline to Fireline | kV | 38 | |||
| Fireline to ground | kV | 38 | |||
| Withstand voltage for lightning impulses | Fracture | kV | 110 | ||
| Fireline to Fireline | kV | 95 | |||
| Fireline to ground | kV | 95 | |||
| 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 SASO certification requirements in the Middle East region?
It has passed SASO certification, and its electrical parameters, protective performance, and environmental indicators meet the requirements of distribution network projects in the Middle East region. It can be directly used in engineering projects in countries such as Saudi Arabia and the United Arab Emirates.
How to deal with dust blockage when used in desert areas?
Adopting a dedicated desert dust protection structure, the air inlet is equipped with an efficient filtering device, and the sealing gap of the cabinet is optimized to effectively block the entry of small dust. At the same time, the filtering device can be easily disassembled and cleaned without the need for professional tools.
Which European languages are supported by the multilingual controller?
Standard configuration includes Chinese and English, German, French, and Spanish, with the option to add Italian and Portuguese as needed. The user interface is simple and easy to understand, suitable for operators in different European countries.
Can the product be adapted for outdoor containerized centralized deployment?
Support, customizable container adaptation size and installation interface, optimized cabinet structure design 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 core differences compared to 15kV products?
The core difference lies in the adaptation of regional standards and voltage parameters. 17.5kV is specifically designed for specific regions in Europe and the Middle East, with certification and parameters tailored to local needs; 15kV focuses on the transition between medium and high voltage, and its adaptability is more inclined towards cross level connection.
Related Applications
Municipal Distribution Network Project in the Middle East Desert Region:
Suitable for municipal distribution networks in desert areas of Middle Eastern countries such as Saudi Arabia and the United Arab Emirates. Such scenarios involve high temperatures, high levels of dust, large temperature differences between day and night, and extremely high requirements for equipment certification and weather resistance. The 17.5kV ring main unit is designed for desert dust protection and extreme temperature resistance, which can withstand high temperatures above 60 ℃, strong wind and sand erosion, and huge temperature differences between day and night. SASO certification ensures compliance with local regulations, and its low noise environmental protection characteristics are suitable for urban residential area power distribution, providing stable guarantees for municipal lighting, traffic monitoring, and residential electricity.
Distribution network of industrial parks in high-altitude regions of Europe:
Suitable for industrial park distribution networks in high-altitude regions such as Northern Europe and Eastern Europe, where winter temperatures can drop below -40 ℃, strict requirements are placed on equipment’s frost resistance and insulation stability. The product’s cold and frost resistant design ensures that the insulation performance does not deteriorate in low-temperature environments, and the operating mechanism operates flexibly. CE and T Ü V certifications can be directly integrated into local distribution network systems, and the modular structure facilitates quick installation and debugging in winter. At the same time, the low-noise operating characteristics meet the environmental requirements of European industrial parks, ensuring the continuous operation of production lines.
Outdoor distribution network for overseas oil and gas fields:
Suitable for outdoor distribution network scenarios in oil and gas fields in the Middle East and North Africa, where there are risks of high temperature, salt spray, flammability, and explosiveness, and a customized voltage level of 17.5kV is required. The product’s explosion-proof module and IP65 protection design can isolate oil and gas, salt spray erosion, eliminate safety hazards caused by electric sparks, and the vibration resistant structure can withstand the vibration impact of oil and gas field operation vehicles and equipment. The fully sealed insulation structure avoids insulation failures caused by moisture and oil and gas, providing stable power supply for pumping units, drilling auxiliary equipment, and security systems.
Distribution network in rural and remote areas of Europe:
Suitable for distribution network scenarios in rural and remote areas of Europe, where there is a shortage of operation and maintenance personnel, complex outdoor environments, and high requirements for low maintenance and weather resistance of equipment. The low maintenance feature of the product does not require frequent inspections, and its weather resistance can withstand complex weather conditions such as high cold and rainy weather. The multilingual controller is easy for local villagers or part-time operation and maintenance personnel to operate. At the same time, its environmentally friendly and pollution-free characteristics meet the ecological protection needs of European rural areas, ensuring stable electricity supply for rural residents and agricultural production.
