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.

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.