NSGTG-6
The 10kV solid insulated ring main unit is a benchmark equipment in the domestic medium voltage distribution network field, designed for mainstream scenarios such as urban distribution network, industrial production, and new energy grid connection. It adopts modified epoxy resin integrated casting technology and fully seals core components such as high-voltage conductors, load switches, circuit breakers, and transformers, completely eliminating SF6 gas and insulating oil. The product strictly complies with national standards such as GB/T 11022 and DL/T 1484, and is suitable for all scenarios of ring network power supply, radiation power supply, interconnection power supply, and terminal distribution under 10kV voltage level. It has core characteristics such as stable operation, environmental protection, high efficiency, and intelligent convenience. It is the core preferred equipment for modern distribution network upgrading and transformation, and can fully meet the construction needs of “safety, green, and intelligence” in domestic distribution networks.
As the mainstream voltage level equipment for domestic medium voltage distribution networks, it perfectly adapts to all types of 10kV distribution network scenarios such as urban, industrial, rural, and new energy, without the need for customized adjustment of core structures. It is easy to select and can significantly shorten project procurement and deployment cycles.
Made of aging resistant modified epoxy resin material with a breakdown strength of ≥ 28kV/mm, optimized insulation spacing design can effectively resist risks such as overvoltage, condensation, and pollution, with insulation failure rates approaching zero, ensuring continuous operation of the distribution network.
Equipped with intelligent monitoring unit and IEC 61850 communication protocol, it can seamlessly integrate into the distribution network automation system, achieve real-time collection and remote control of switch status, temperature and humidity, and partial discharge data, support automatic fault location and isolation, and adapt to unmanned operation and maintenance mode.
no SF6 greenhouse gas emissions and insulation oil leakage risks, in line with the “dual carbon” policy; Modular design reduces maintenance and expansion costs in the later stages, with a service life of ≥ 20 years and a comprehensive cost reduction of over 25% over the entire lifecycle compared to traditional gas cabinets.
optimized conductor and switch arc extinguishing structure, rated short-circuit breaking current up to 31.5kA-40kA, able to withstand power grid impact and frequent load fluctuations, stable operation under complex working conditions such as power grid harmonics and voltage dips, suitable for industrial heavy loads and urban core distribution network needs.
Execution standards: GB/T 11022 “Common Technical Requirements for High Voltage Switchgear and Control Equipment Standards”, DL/T 1484 “Technical Conditions for 12kV Solid Insulated Ring Main Unit”, GB/T 3906 “3.6kV~40.5kV AC Metal Enclosed Switchgear and Control Equipment”; Rated parameters: rated current 800A-1600A, rated short-time withstand current 40kA/4s, protection level IP4X-IP65, operation mode supports manual, electric, and remote control; Material configuration: Modified weather resistant epoxy resin, high conductivity copper conductor (tin plated), 2.5mm cold-rolled steel plate anti-corrosion cabinet body; Customized service: can be equipped with arc protection, precise measurement, and energy storage backup modules, supporting personalized customization of cabinet size and color.
Providing you with the most trusted energy solutions in an unpredictable world.
Contact Us| Name | Unit | Parameter | |||
| Rated voltage | kV | 10 | |||
| Rated frequency | Hz | 50 | |||
| Current rating | A | 630 | 1250 | ||
| Rated insulation level | Power frequency withstand voltage | Fracture | kV | 32 | |
| Fireline to Fireline | kV | 28 | |||
| Fireline to ground | kV | 28 | |||
| Withstand voltage for lightning impulses | Fracture | kV | 85 | ||
| Fireline to Fireline | kV | 75 | |||
| Fireline to ground | kV | 75 | |||
| 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 | ||||
It is not recommended to mix them. The insulation parameters and conductor specifications of the two should be designed accordingly. Mixing them will reduce insulation redundancy and operational stability. Therefore, the selection should be based on the rated voltage of the system.
The accuracy of partial discharge monitoring reaches 1pC, and the warning threshold can be customized through the cloud platform. When the threshold is exceeded, it will automatically trigger sound and light and remote alarms, making it easy to accurately control the equipment status.
Standard IP54 protection level, no additional protection required for outdoor installation; If used in coastal and high dust scenarios, it can be upgraded to IP65 protection to resist salt spray and dust erosion.
Supports live expansion, modular units can be independently disassembled and assembled, only the corresponding expansion units need to be isolated, without affecting the overall power supply of the distribution network, greatly reducing power outage losses.
The installation difficulty is lower, the weight is 30% lighter than SF6 cabinets, there is no need for gas filling and leak detection processes, the basic construction is simple, and 2-3 people can complete daily installation and commissioning.