Products Description
The company's SF6 gas insulated switchgear (GIS) is a fully enclosed power distribution device that uses sulfur hexafluoride (SF6) gas as the insulation and arc extinguishing medium.It integrates circuit breakers, isolation switches, grounding switches, busbars and control modules. It adopts a modular sealed structure with extremely high reliability and space utilization. It is designed for modern power grids, space-restricted places and high-safety scenarios.
Products Advantages
GIS Ring Main Unit: 6 Key Advantages
Extremely compact design: the volume is 70% smaller than that of traditional air-insulated switchgear (AIS), which greatly saves the area and civil construction costs of substations. It is suitable for scenarios where space is precious such as urban centers, high-rise buildings, and underground facilities.
Ultra-high reliability: using a fully sealed stainless steel gas tank and advanced laser welding technology, the annual leakage rate of SF6 gas is less than 0.1%, which can achieve maintenance-free operation for more than 30 years and reduce long-term operating costs.
Super insulation and arc extinguishing: The insulation strength of SF6 gas is 3 times that of air, the insulation performance is excellent and the arc extinguishing is rapid, which effectively improves the stability and safety of the power grid.
Strong environmental adaptability: IP67 protection level, can be fully dust-proof, moisture-proof, salt spray-proof, anti-industrial pollution, and can operate stably in harsh environments such as high altitudes of 5,000 meters, coastal areas, and mines.
High safety and high flexibility: fully equipped with mechanical interlocking and pressure release devices, with 31.5Ka/1s anti-arc design to ensure the safety of personnel and equipment; plug-and-play modular design, flexible customization, on-site assembly, easy to later system expansion.
Intelligent compatibility: it can be connected to an intelligent monitoring system to realize real-time status assessment, remote control and predictive maintenance, and adapt to the development needs of the smart grid.
Products Application
It is widely used in urban and rural distribution grids, petrochemical plants, mines, data centers, production workshops, rail transit, airports, commercial high-rise buildings, onshore/offshore wind farms, photovoltaic power plants, and special environments such as high altitudes and coasts, providing stable and reliable power distribution support for various scenarios.
Why Choose Us
As a professional manufacturer of power transmission and distribution equipment, our SF6 gas insulated switchgear (GIS) has passed strict type tests in authoritative laboratories and fully complies with international standards.We adhere to the selection of high-quality materials, implement strict quality control, and provide customers with products with the best cost in the whole life cycle. At the same time, customized solutions can be provided according to project needs, and global technical support, on-site installation guidance and after-sales service can be provided. All products have passed ISO 9001, CB, CE and other certifications and international type test reports.
2006
Established
18+
Years experiences
33333+㎡
Factory area
39+
Patent certifications
Technical Specification
| Technical Specification of SF6 Gas Fully Insulated Ring Main Unit | ||||
| Project | Parameter | |||
| Load Switchgear (C) | Combined Elecctric Cabinet (F) | Circuit Breaker Cabinet(V) | ||
| Rated Voltage | 12kV | |||
| Rated Frequency | 50HZ | |||
| Rated Current | 630A | 1250A (Depends on Fuse Current) | 630A/1250A | |
| Rated Transfer Current | / | 1750A | / | |
| Cable Charging Break Current | 40A | 25A | ||
| No-load Transformer Breaking Current | 16A | 16A | ||
| Rated Switching Times of Active Load | 100次 | / | / | |
| Rated Number of Short Circuit Breakering | / | / | ≥30 times | |
| Rated Short-time Tolerable Current |
The Primary Loop | 20kA/4S | / | 20kA/4S,31.5kA/4S |
| Grounding Switch | 20kA/4S | / | 20kA/4S,31.5kA/4S | |
| Rated Short Circuit Closing Current |
The Primary Loop | 50kA | Limited by High Voltage Fuse | 50kA/80kA |
| Grounding Switch | 50kA | 50kA/80kA | ||
| 1 mimute Power Frequency Voltage Withstand |
Interphase with and Against the Ground | 42kV | ||
| Fracture | 48kV | |||
| Lighting Shock Withstand Voltage | Interphase with and Against the Ground | 75kV | ||
| Fracture | 85kV | |||
| Mechanical Life | The Main Switch | ≥5000 times | ≥10000 times | |
| Grounding Switch | ≥3000 times | |||
| Main Circuit Resistance | ≤120μΩ | ≤400μΩ | ≤200μΩ | |
| SF6 Gas Pressure Rating (20℃) | 0.035MPa | |||
| Annual Leakage Rate of SF6 Gas | 0.01% | |||
| Rated Power Supply Voltage of Secondary Loop | AC220V/DC110/DC48V/DC24V | |||
| 1 minute Power Frequency withstand Voltage of Secondary Loop | 2kV | |||
| Protection Grade | Aeration Tank | IP67 | ||
| Shell and Operating Mechanism | IP4X | |||
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