NSRM-10
12kV SF6 gas filling cabinet is a high-end switchgear designed for medium and high voltage distribution networks with special requirements for voltage level accuracy and equipment expansion capacity. It uses high-purity SF6 gas as the insulation medium, integrates circuit breakers, load switches, grounding switches, transformers and other components, and adopts a drawer style modular structure, balancing compactness and scalability. This voltage level complies with the dual standards of GB/T 11022 and IEC 62271, and is suitable for some special industry distribution networks in China, as well as meeting the needs of some European markets. Its core focus is on high-end distribution scenarios, and it has the core characteristics of high efficiency, intelligence, and scalability.
1. Ensure stable power supply for precision loads.
2. Flexible expansion, adopting a drawer style modular design, the output circuit can be expanded from 3 to 12, without the need for overall equipment modification, and can be gradually expanded according to load growth, reducing initial investment costs.
3. High degree of intelligence, integrated with multi-dimensional intelligent monitoring modules, can real-time collect gas pressure, temperature, switch mechanical characteristics, partial discharge and other parameters, and achieve fault prediction and status maintenance through AI algorithms, reducing blind operation and maintenance.
4. The fourth is a low-noise design, with arc extinguishing and operation process noise ≤ 60 decibels, suitable for scenarios with strict noise control. At the same time, the air box adopts a silent sealing structure, and there is no obvious vibration during operation.
Rated current range: 800A-3150A, rated short-circuit breaking current: 25kA-40kA, adopting oil-free design to prevent oil pollution, the gas box sealing structure has undergone millions of opening and closing tests, and the air leakage rate is ≤ 0.05%/year. Supports manual, electric, and automatic operation modes, equipped with an intelligent control panel that seamlessly switches between local operation and remote control. Optional SF6/N2 mixed gas insulation solution is available to further enhance environmental performance, while compatible with linkage control of GIS equipment, suitable for building high-end intelligent distribution networks.
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Contact Us| Item | Unit | Model C | Model F | Model V | Model CB |
| Rated voltage | kV | 12 | 12 | 12 | 12 |
| Rated frequency | Hz | 50 | 50 | 50 | 50 |
| Power frequency withstand voltage (phase to phase/port) | kV | 38/45 | 38/45 | 38/45 | 38/45 |
| Lightning impulse withstand voltage | kV | 95/110 | 95/110 | 95/110 | 95/110 |
| Rated current | A | 630 | – | 630/1250 | 630/1250 |
| Rated closed-loop breaking current | A | 630 | 630 | – | – |
| Rated cable charging breaking current | A | 135 | 135 | – | – |
| Rated short-circuit closing current (peak) | A | 50 | 80 | 50 | 50 |
| Rated peak withstand current | A | 50 | – | 50 | 50 |
| Rated short-time withstand current | kA/3s | 20 | – | 20 | 20 |
| Rated short-circuit breaking current | kA | 20 | 31.5 | 20 | 25 |
| Rated transfer current | A | – | 1750 | – | – |
| Maximum current of equipped fuse | A | – | 125 | – | – |
| Circuit resistance | -n | ≤300 | ≤600 | ≤300 | ≤300 |
| Mechanical lifespan | times | 5000 | 5000 | 5000 | 5000 |
The core difference lies in insulation design and adaptation scenarios. The 12kV model has a higher insulation margin and is suitable for high-end distribution scenarios with high voltage accuracy requirements. It also has stronger modular expansion capabilities and more comprehensive intelligent functions.
Support, SF6/N2 mixed gas can be selected, which significantly reduces the greenhouse effect potential (GWP) while maintaining the same insulation and arc extinguishing performance, meeting higher environmental requirements.
No need for overall power outage, adopting a drawer style modular design. The newly added circuit can be installed and debugged separately without affecting the original power supply, achieving live expansion and ensuring power supply continuity.