XGN49-40.5(24) Gas-Insulated Metal-Enclosed Switchgear (C-GIS)
The XGN49 series of indoor gas-insulated metal-enclosed switchgear (C-GIS), hereinafter referred to as the XGN49-40.5(24) gas-insulated cubicle, is a high-tech product independently developed by Tianan Electric. It employs vacuum arc-extinguishing and SF6 gas insulation technology, achieving a technical level that is domestically leading and internationally advanced.
Category:
Medium-Voltage Switchgear
Keywords:
XGN49-40.5(24) Gas-Insulated Metal-Enclosed Switchgear (C-GIS)
The XGN49 series of indoor gas-insulated metal-enclosed switchgear (C-GIS), hereinafter referred to as the XGN49-40.5(24) gas-insulated cubicle, is a high-tech product independently developed by Tianan Electric. It features vacuum arc-extinguishing technology and SF6 gas insulation, achieving a technical level that is domestically leading and internationally advanced.
The XGN49 inflatable switchgear features all high-voltage live components sealed within a stainless steel enclosure filled with SF6 gas at a lower pressure (0.03–0.05 MPa gauge, 20°C; rated IP67). The main switch uses a spring-operated vacuum circuit breaker equipped with a three-position isolating and earthing switch. The product boasts stable insulation performance and is particularly well-suited for harsh environments such as high altitudes, extreme cold, humidity, and pollution. Additionally, its compact footprint makes it ideal for space-constrained applications—such as rail transit systems—where land availability is limited.
1) Rated current can reach up to 3150A, with a short-circuit breaking capacity of 31.5kA;
2) External dimensions: 600 × 1400 × 2500 mm;
3) Employs vacuum arc extinction and SF6 gas insulation;
4) Through a high-altitude test at 5,000 meters;
5) The three-position isolating switch features a visible break.
6) The product is easy and quick to install—no on-site inflation required;
7) Overhead outgoing lines using tubular busbars can be employed;
8) A dual-busbar technical solution is achievable.
Serial Number | Project | Unit | Technical specifications |
1 | Rated current | A | 630–3150 |
2 | Rated frequency | Hz | 50/60 |
3 | Rated Voltage | kV | 40.5 (24) |
4 | Rated Power Frequency Withstand Voltage | kV | 95 |
5 | Rated Lightning Impulse Withstand Voltage | kV | 185 |
6 | Rated Short-Circuit Interrupting Current | kA | 20–31.5 |
7 | Rated Short-Time Withstand Current (RMS) / Duration | kA/s | April 20 – April 31.5 |
8 | Inflation-Shell Protection Rating | IP | 67 |
9 | Cabinet Protection Rating | IP | 4X |
10 | SF6 gas rated operating pressure (gauge pressure at 20°C) | MPa | 0.05 |
11 | Minimum operating pressure of SF6 gas (gauge pressure at 20°C) | MPa | 0.03 |
12 | Annual Leakage Rate of SF6 Gas | %/year | ≤0.5 |
13 | External Dimensions (630A–1600A) | mm | 600×1400×2500 |
14 | External dimensions (2000A–3150A) | mm | 800×1600×2500 |