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HXGN-40.5 Series Fixed Metal Enclosed Switchgear: 40.5kV rated voltage, SF6 gas insulation, 95kV withstand voltage, 31.5kA short-circuit capacity, 5000-operation mechanical life. Ideal for wind power, substations & industrial grids.
The product is suitable for indoor three-phase AC 50Hz, rated voltage 40.5kV, ring network power supply system, mainly used in wind power generation, substations, industrial and mining enterprises and high-rise buildings, as the acceptance and distribution of electric energy, and the circuit to implement protection, control and monitoring.
The identification code of the system is structured as follows: H X G N □ - 40.5
H: Ring network
X: Box-type AC metal-enclosed switchgear
G: Fixed type
N: Indoor
□: Design number
40.5: Rated voltage kV
Temperature: Maximum: 40°C; 24-hour average: not more than 35°C; Minimum: -5°C.
Humidity: 24-hour average relative humidity: no more than 95%; 24-hour average water vapour pressure: no more than 2.2 Pa; monthly average relative humidity: no more than 90%; monthly average water vapour pressure: no more than 1.8 Pa.
Altitude: not exceeding 1000m.
Earthquake: seismic intensity not exceeding 8 degrees.
Air quality: no significant dust, smoke, corrosive/combustible gas, vapour or salt spray pollution in the surrounding air.
| Item | Unit | Technical Parameters: HXGN□-40.5(F) | Technical Parameters: HXGN□-40.5(F,R) |
| Rated Voltage | kV | 40.5 | 40.5 |
| 1 min frequency withstand voltage | kV | 95 | 95 |
| Lightning impulse withstand voltage (peak) | kV | 185 | 185 |
| Auxiliary and control circuit frequency withstand voltage | V | 2000 | 2000 |
| Rated frequency | Hz | 50 | 50 |
| Rated current | A | 400 | 50 |
| Rated active load breaking current | A | 400 | - |
| Rated distribution line closed-loop breaking current | A | 400 | - |
| Rated cable charging breaking current | A | 21 | - |
| Rated no-load transformer opening current | A | 4 | - |
| Rated short-time withstand current | kA | 16 | - |
| Rated short-circuit duration | S | 3 | - |
| Rated peak withstand current | kA | 40 | - |
| Rated short-circuit opening current | kA | - | 31.5 (expected) |
| Rated short-circuit closing current | kA | 40 | 80 (expected) |
| Rated transfer or handover current | A | - | 450 |
| Mechanical life | Times | 5000 | 5000 |
| SF6 gas rated pressure (gauge pressure at 20°C) | MPa | 0.05 | 0.05 |
| SF6 gas minimum functional pressure (gauge pressure at 20°C) | MPa | 0.03 | 0.03 |
| SF6 gas annual leakage rate | - | ≤1% | ≤1% |
| Earth Switch: Rated short-time withstand current | kA | 16 | 16 |
| Earth Switch: Rated short-circuit duration | S | 3 | 3 |
| Earth Switch: Rated peak withstand current | kA | 40 | 40 |
| Earth Switch: Mechanical life | Times | 2000 | 2000 |
| Rated breaking operation voltage/current (tripper operated) | V/A |
AC,220/1.9, 110/3.8 DC,220/1.2, 110/2.0 |
AC,220/1.9, 110/3.8 DC,220/1.2, 110/2.0 |
| Rated voltage of energy storage motor (for motor energy storage) | V |
AC,220, 110 DC,220, 110 |
AC,220, 110 DC,220, 110 |
| Rated power of energy storage motor | W | 150 | 150 |
| Auxiliary switch rated opening and closing current | A | AC,16, DC,2 | AC,16, DC,2 |
When selecting a medium-to-high voltage power distribution solution, the JNCN Power HXGN-40.5 Series Fixed Metal Enclosed Switchgear stands out as a premier engineering choice for global power infrastructure. Here is why global contractors and energy developers choose this specific series:
Tailored for Renewable Energy & Heavy Industry: Specially optimized for modern power networks, making it the ideal cornerstone for wind power generation, large industrial grid hubs, and high-rise commercial infrastructures.
Advanced SF6 Insulation Engineering: Utilizes a highly reliable SF6 gas-protected environment with a functional safety gauge threshold of 0.05 MPa and a strict annual leakage rate of ≤1%, ensuring exceptional arc extinguishing and structural durability over time.
Superior Insulation & Impulse Safety: Engineered to handle massive voltage anomalies seamlessly, boasting a 1-minute (Frequency Withstand Voltage) of 95kV and a Peak Lightning Impulse Withstand Voltage of 185kV.
Robust Operational Lifespan: Built for demanding long-term duty cycles with a main switch mechanical endurance of up to 5,000 operations and an integrated earthing switch certified for 2,000 operations.
Intelligent Control & Safety Integration: Outfitted with specialized auxiliary control circuitry, motor-driven energy storage systems, and comprehensive tripper-operated protection arrays for real-time grid monitoring and flawless fault isolation.