The SN2S-40.5 indoor Gas-Insulated Metal-Enclosed Switchgear (C-GIS) incorporates advanced gas insulation technology, with key high-voltage components like circuit breakers, disconnectors, and busbars hermetically sealed in gas-filled compartments. This design achieves a compact, modular footprint and offers significant benefits including intelligent operation, all-climate performance, and maintenance-free service. As an ideal replacement for traditional Air-Insulated Switchgear (AIS), it is particularly suited for space-constrained or demanding environments such as urban substations, transportation hubs, and renewable energy projects.
| Item | Parameters | |
| Rated voltage | 40.5kV | |
| Rated frequency | 50Hz | |
| Rated current | 1250/1600/2000/2500A | |
| Rated power-frequency withstand voltage | phase-to-phase and phase-to-earth | 95kV |
| across open contacts | 118kV | |
| Rated lightning-impulse voltage | phase-to-phase and phase-to-earth | 185kV |
| across open contacts | 215kV | |
| rated short-circuit breaking current | 25/31.5kA | |
| rated short-circuit making current (peak) | 63/80kA | |
| rated short-time withstand current | 25/4s,31.5/4skA | |
| rated peak withstand current | 63/80kA | |
| rated cable-charging breaking current | 50A | |
| rated mechanical endurance | 10000(M2) | |
| rated electrical endurance | 30/(E2) | |
| degree of protection (gas tank / enclosure) | IP65/4X | |
Our switchgear, including C-GIS and ring main units, features a compact and modular design, saving valuable installation space and allowing for flexible expansion and easy on-site assembly.
With all high-voltage components sealed in a stainless-steel gas tank, our equipment is protected from environmental factors. It features reliable mechanical and electrical interlocks to ensure the safety of operators.
Committed to sustainability, we offer eco-friendly switchgear that uses dry air as the insulating medium, completely eliminating SF₆ gas and minimizing environmental impact.
The fully sealed and insulated design ensures our switchgear is virtually maintenance-free throughout its service life, significantly reducing operational costs and downtime.
Our products can be integrated with intelligent solutions, supporting remote monitoring, control, and automated distribution systems, which is crucial for building modern smart grids.
Ideal for secondary distribution substations, industrial parks, commercial buildings, and residential communities, providing reliable power control and protection.
Perfectly suited for renewable energy applications such as wind farms and solar power plants, where compact and reliable switchgear is essential for power collection and grid connection.
Deployed in critical infrastructure like subways, railways, airports, and tunnels, where space is limited and high reliability is non-negotiable.
Used in demanding environments such as mining, petrochemical plants, and data centers that require robust, safe, and uninterrupted power management.
