The XGN series SF6 gas-insulated ring main unit is widely applied in power supply systems including distribution stations at load centers (e.g., urban residential quarters, large shopping malls, industrial enterprises) and prefabricated substations.
Primarily used for connection and section control of distribution lines, the product integrates multiple functions including short-circuit protection, overload protection, real-time monitoring of switch operation status, fault isolation, and self-healing. It enables the shift from manual inspection to intelligent operation and maintenance, which significantly reduces the operation and maintenance workload and ensures the safe and stable operation of the distribution network.
Leveraging the excellent insulating properties of sulfur SF6, the product features a compact structure, with the minimum width of its cabinet body reaching as small as 325mm.
By configuring online monitoring devices for temperature, partial discharge, temperature-humidity, water immersion, and other parameters, real-time monitoring of the operating status of equipment and lines can be achieved. Additionally, with the configuration of a distribution automation terminal, fault early warning, automatic fault isolation, and restoration of non-faulty areas can be realized.
With an hermetically sealed structural design, the switch has a mechanical service life of over 10,000 operations. During its service cycle, it requires minimal maintenance or even can achieve maintenance-free operation.
High-voltage live components are enclosed in a SF6 gas tank, with an enclosure protection rating of IP67, ensuring strong environmental adaptability. The metal housing is reliably grounded, which guarantees the safety of operating and maintenance personnel.
No. | Item | Unit | Parameters | |||
1 | Rated voltage | kV | 12 | 24 | 36 | |
2 | Rated frequency | Hz | 50 | |||
3 | Rated current | A | 630 | |||
4 | 1 min Power frequency withstand voltage | kV | 42/48 | 65/79 | 95/118 | |
5 | Lightning impulse withstand voltage | kV | 75/85 | 125/145 | 185/215 | |
6 | Rated Short-Circuit Breaking Current | kA | 20 | 20 | 20 | |
7 | Active Load Breaking Current and Closed-Loop Breaking Current (Load Switch) | A | 630 | 630 | 630 | |
8 | Transfer Current(switch—fuse combinations) | A | 1700 | 1200 | 800 | |
9 | Rated Short-Circuit Making Current | kA | 50 | 50 | 50 | |
10 | Rated withstand current(peak) | kA | 50 | 50 | 50 | |
11 | Rated Short-Time Withstand Current (4s) | kA | 20 | 20 | 20 | |
12 | Mechanical Life | times | 10000 | 10000 | 10000 | |
13 | Ingress Protection | IP4X | ||||
