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NSGTG-6
NSGTG-6 Solid Insulated Switchgear
The 6kV solid insulated ring main unit is the core equipment of industrial and municipal distribution networks. It adopts high-performance epoxy resin integrated casting technology, seals and wraps high-voltage conductors, switch contacts, and transformers, and is suitable for ring network power supply, radiation power supply, and contact power supply needs under 6kV voltage level. The product combines reliability and universality, strictly follows IEC 62271-200 and GB standards, integrates core components such as circuit breakers, load switches, and protection modules, and can cope with load fluctuations in industrial scenarios and continuous power supply needs in municipal scenarios. It is the mainstream preferred equipment for medium voltage distribution networks.
Features
1. Strong universal adaptability and wide scene coverage:
Perfectly adapted to the 6kV distribution network needs of multiple scenarios such as industrial, municipal, and new energy, the rated current and short-circuit breaking capacity can be flexibly adjusted, without the need for separate customization for different scenarios, reducing selection and procurement costs.
2. Load resistance and stable operation:
Optimized conductor and switch structure design, capable of withstanding frequent load fluctuations and short-term overloads, with a rated short-circuit breaking current of 25kA-31.5kA, effectively responding to industrial equipment start-up, municipal load peak, and other impacts, ensuring power supply continuity.
3. High level of intelligent integration, suitable for unmanned operation:
Equipped with intelligent controller and RS485 communication interface, it can achieve switch status monitoring, fault alarm, remote opening and closing, support access to distribution network automation system, and adapt to the unmanned operation needs of industrial plants and municipal distribution stations.
4. Green and environmentally friendly, no secondary pollution:
no SF6 gas or insulation oil is used throughout the process, the epoxy resin material can be recycled and reused, in line with the “dual carbon” policy and environmental protection requirements, avoiding environmental risks such as gas leakage and oil pollution, and adapting to the strict environmental protection of parks and municipal scenes.
5. Modular assembly, easy expansion:
adopting a modular design, the switch unit, protection unit, and metering unit can be independently disassembled and assembled, and can be flexibly expanded according to load growth in the later stage, without the need to replace the cabinet as a whole, reducing the cost of upgrading and transformation.
Execution standards: GB/T 11022, IEC 62271-200, DL/T 1484; Rated parameters: rated current 800A-1250A, rated short-circuit breaking current 25kA-31.5kA, rated short-time withstand current 31.5kA/s, protection level IP4X-IP65; Material configuration: The epoxy resin adopts a temperature resistant formula (-40 ℃~+70 ℃), the conductor is high conductivity purple copper, and the cabinet is treated with 2.0mm cold-rolled steel plate for corrosion prevention; Customized services: Partial discharge monitoring and precise measurement modules can be installed, supporting 5G communication upgrades and adapting to the needs of intelligent distribution networks.
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Specification
| Name | Unit | Parameter | |||
| Rated voltage | kV | 6 | |||
| Rated frequency | Hz | 50 | |||
| Current rating | A | 630 | 1250 | ||
| Rated insulation level | Power frequency withstand voltage | Fracture | kV | 23 | |
| Fireline to Fireline | kV | 20 | |||
| Fireline to ground | kV | 20 | |||
| Withstand voltage for lightning impulses | Fracture | kV | 46 | ||
| Fireline to Fireline | kV | 40 | |||
| Fireline to ground | kV | 40 | |||
| 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
Can the product be used in dusty and corrosive environments?
Yes, the cabinet has undergone special anti-corrosion spray treatment and is equipped with a fully sealed insulation structure. It can operate stably in environments with high dust and mild corrosive gases, and is suitable for scenarios such as chemical parks and metallurgical plants.
Is the intelligent module compatible with existing distribution automation systems?
Compatible with IEC 61850 communication protocol, seamlessly integrated into mainstream distribution automation platforms without the need for additional conversion modules, achieving data interoperability and unified control.
Is it difficult to repair after a malfunction, and are spare parts easy to obtain?
Easy to maintain, modular design allows for quick replacement of faulty units without the need for professional disassembly of equipment; The core spare parts have strong universality, and the manufacturer has a standing inventory that can be quickly allocated to shorten downtime due to malfunctions.
What are the core differences compared to 6.6kV products?
The core difference lies in voltage adaptability, with 6kV being the mainstream voltage level for domestic industrial and municipal use, providing a wider range of adaptability; 6.6kV is mostly targeted at special industries or overseas scenarios, with the same structure and performance framework, only differing in insulation parameters and conductor specifications.
Are there any special requirements for the foundation during installation?
No special requirements, only the cement foundation needs to be leveled, no additional reinforcement treatment is required, the cabinet comes with a fixed device, the installation process is simple, and on-site deployment can be quickly completed.
Related Applications
General Industrial Park Power Distribution:
Suitable for general industrial parks such as mechanical manufacturing, electronic processing, and food processing, where equipment is dense and load fluctuations are frequent, there is a high demand for power supply stability and intelligent control. The 6kV ring main unit has strong resistance to load impact and can stably support the operation of multiple loads such as machine tools, production lines, and refrigeration equipment. The intelligent monitoring function can provide real-time feedback on equipment status, making it easy for park operation and maintenance personnel to remotely control and reduce troubleshooting time, ensuring continuous operation of the production line.
Urban municipal road and bridge distribution network:
Suitable for lighting, monitoring, and emergency equipment power supply in municipal scenes such as urban main roads, overpasses, tunnels, etc. These scenes require 24-hour continuous power supply, and the equipment is mostly deployed outdoors or underground pipe galleries. The product has strong weather resistance and can withstand extreme outdoor temperatures and underground humid environments. The intelligent remote control function facilitates unified management and control by municipal departments, and can quickly handle faults remotely to ensure the normal operation of road lighting and traffic monitoring, and improve the stability of urban public services.
Distributed photovoltaic power station grid connected distribution:
Adapt to the boosting and grid connection links of industrial and commercial distributed photovoltaic power plants. Such scenarios need to balance green environmental protection and power supply reliability, and often operate in conjunction with the power grid. The product has no environmental pollution and is in line with the green positioning of photovoltaic projects. At the same time, it has stable grid switching ability, which can effectively cope with fluctuations in photovoltaic output. The intelligent module can achieve data exchange with the power grid system, ensuring the safe and efficient integration of photovoltaic energy into the distribution network and improving the utilization rate of power generation in the power station.
Distribution network of large hospitals and public buildings:
Suitable for large public buildings such as tertiary hospitals, exhibition centers, sports venues, etc. These scenarios require extremely high reliability of power supply and need to avoid safety risks and public events caused by power outages. The 6kV ring main unit operates stably with low probability of failure, and has the ability to quickly isolate faults. It can ensure continuous power supply for key loads such as medical equipment, emergency lighting, and elevators. At the same time, the intelligent monitoring function can warn potential faults in advance, reserve disposal time for operation and maintenance personnel, and build a strong defense line for public building electricity safety.
