High Voltage Switchgear
HXGN-24 Fixed-Type Metal-Clad Ring Main Switchgear (RMU)
Product Overview
HXGN-24 Fixed-type metal-clad ring main switchgear (RMU), is a 24kV rated voltage, 50Hz rated frequency AC high-voltage switchgear assembly, primarily used in three-phase AC ring networks, terminal distribution grids, and industrial electrical systems for receiving and distributing electrical energy. It is also suitable for integration into prefabricated substations.
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Product Features
- Increase main transformer capacity to strengthen substation power supply capability.
- Improve distribution-line transmission capacity while reducing the number of lines.
- Extend the power supply radius of medium-voltage lines.
- Improve power supply quality in medium-voltage grids.
- Reduce power losses in medium-voltage grids.
- Save non-ferrous metals and land resources.
Product Details & Applications
Operating Conditions
- Altitude: ≤1000m
- Ambient temperature: -35°C to +40°C, maximum daily temperature difference 25°C;
- Relative humidity: Daily average ≤95%, monthly average ≤90%;
- Seismic resistance: Seismic intensity grade 8;
- System rated frequency: 50Hz;
- SF6 annual leakage rate: ≤0.1%;
- Enclosure protection class: IP3X; Note: For orders exceeding the above conditions, please consult our company for customization.
Technical Specifications
| No. | Items | Unit | Data | ||
|---|---|---|---|---|---|
| 1 | Rated voltage | kV | 24 | ||
| 2 | Rated frequency | Hz | 50 | ||
| 3 | Rated current | A | 630 | ||
| 4 | Load switch-Fuse combination cabinet | A | ≤100 | ||
| 5 | Rated short-circuit breaking current | kA | 31.5 | ||
| 6 | Rated making current(Peak) | kA | 50 | ||
| 7 | Rated thermal stable current | kA/S | 20/3 | ||
| 8 | Rated dynamic stable current(Peak) | kA | 75 | ||
| 9 | Insulation level | Power frequency withstand voltage | Phase to phase & to ground | kV/min | 65/1 |
| 9 | Insulation level | Power frequency withstand voltage | Fracture | kV/min | 79/1 |
| 9 | Insulation level | Lightning impulse withstand voltage | Phase to phase & to ground | kV | 125 |
| 9 | Insulation level | Lightning impulse withstand voltage | Fracture | kV | 145 |
| 10 | Rated active load breaking current | A | 630 | ||
| 11 | Rated cable charging breaking current | A | 25 | ||
| 12 | Main circuit resistance | μΩ | ≤300 | ||
| 13 | Rated transfer current | A | 870 | ||
| 14 | Mechanical life | Times | Load switch:3000 | ||
| 14 | Mechanical life | Times | Earthing switch:2000 | ||
| 15 | Dimensions(W×D×H) | mm | 600×1195×2000 |
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