This XGW9-12 AC metal clad switchgear is the upgraded version of XGN74-12 box type fixed product with enclosure. The latter is an indoor high voltage distribution device, suitable for three-phase AC 50Hz power system. It offers line control, segmentation, reconstruction, protection mainly for the 12Kv secondary distribution system.
This AC metal clad switchgear is suitable for production and supply, especially in urban residential areas, large public buildings, substations, commercial and industrial areas, rural towns and other high density areas with power supply load. This product features secure operation, weatherproof performance, easy installation, space conservation, simple maintenance, high reliability and utilization.
Technical Parameters| No. | Name | Unit | Load switch unit | Composite apparatus unit | Circuit breaker unit | |
| 1 | Rated voltage | kV | 12 | 12 | 12 | |
| 2 | Insulation level | 1min power frequency withstand voltage | kV | 42/48 | 42/48 | 42/48 |
| Lightning impulse withstand impulse | 75/85 | 75/85 | 75/85 | |||
| 3 | Rated current | A | 630/1250 | 125 | 630/1250 | |
| 4 | Rated transfer current | A | 1700 | |||
| 5 | Closed loop breaking current | A | 630 | |||
| 6 | Charging cable breaking current | A | 10 | |||
| 7 | 5% Rated active load breaking current | A | 31.5 | |||
| 8 | Ground fault breaking current | A | 30 | |||
| 9 | Earth fault cable charging breaking current | A | 17.3 | |||
| 10 | Rated short-circuit breaking current | kA | 20 | |||
| 11 | Rated making capacity | kA | 50 | 50 | ||
| 12 | Rated withstand current 4S | kA | 20 | 20 | ||
| 13 | Rated peak withstand current | kA | 50 | 50 | ||
| 14 | Mechanical life (main switch/earthing switch) | Time | 10000/3000 | 10000/3000 | 10000/3000 | |
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