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Products Description
HXGN15-12 AC Metal-Enclosed Ring Main Unit (hereinafter referred to as switchgear) uses FLN□-12, FLRN□-12 type indoor AC high-voltage sulfur hexafluoride load switches as the main switch, and the entire cabinet uses air insulation. It is suitable for distribution automation in compact and expandable unit-type metal-enclosed ring main switchgear. It has features such as simple structure, flexible operation, reliable interlocking, and convenient installation.
The switchgear is suitable for power systems with a rated voltage of 12kV and a rated frequency of 50Hz. It is widely used in industrial and civil cable ring networks and the power supply terminals as ring network power supply units and terminal equipment. It plays the role of electrical energy distribution, control, and protection of electrical equipment. It can also be installed in box-type substations and outdoor switching stations. The switchgear complies with the relevant provisions of GB3906 "3.6-40.5KV AC Metal-Enclosed Switchgear and Control Equipment" and IEC "High-Voltage AC Load Switch-Fuse Combination Units".
Product Paramenters
| Project name | | unit | Data |
| Rated voltage | | KV | 12 |
| Rated frequently | | HZ | 50 |
| Rated current | Load switch cabinet | A | 630 |
| Rated current | Combined electrical cabinet | A | 125 |
| Rated short-circuit making current (peak value) | | KA | 50 |
| Rated short-circuit breaking current | | KA | 20 |
| Rated active load breaking current | | A | 630 |
| Rated thermal stability current (4s) | | KA | 20 |
| Rated dynamic stability current | | KA | 50 |
| 1min power frequency withstand voltage | | KV | 42(Isolation fracture, 48) |
| Lightning impulse withstand voltage (peak value) | | KV | 75(Isolation fracture,85) |
| Mechanical life | | times | 10000 |
| Rated handover current (combination electrical appliance) | | A | 3150 |
| Operation mode | | | Manual or electric |
| Protection level | | | IP2X |
Application
- Low-temperature cold area: When SF6 gas isn't used, no need to consider the low temperature operation of sf6 gas, it canoperate normally at -45°C.
- Plateau area: No need to consider the effect of plateau atmospheric pressure on insulation performance.
- Strong-wind and sandy area: Solid-insulated ring main unit safety protection grade is lP67, control circuit room has speciatreatment to ensure long-term operation in a strong-wind and sandy area.
- Coastal humid area: Epoxy resin seal is anti-humidity, anti-salt-fog-corrosion to ensure long-term use in a coastal area.
- An area with high requirements on environmental protection: People have paid great attention to the SF6 gas warming effect orthe atmosphere: SF6 gas is cancelled in a solid ring main unit, without pollution and harm to environments and people.
- In smart power grid: The main switch is electrically actuated; the intelligent controller developed by our company is optionaland it can be used for the remote control, telemetry, telecommunication, decentralized or centralized control ofthe switchgearsand substations on site.
