Breakingcapacity Up To 50kA Substation HV Switchgear Offering Industrial Plants Electrical Control and Protection Systems

Product Description:

Technical Parameters:

The product is designed to operate within rated voltages of 12kV, 24kV, and 36kV, which correspond to the common distribution network systems of 10kV, 20kV, and 35kV respectively. It supports rated frequencies of 50Hz and 60Hz, making it compatible with the predominant power grid frequencies around the world.

Regarding current specifications, the device accommodates rated currents of 630A and 1250A, where 630A serves as the standard configuration for continuous operation in the main circuit. It also features rated short-time withstand currents of 16kA, 20kA, 25kA, and 31.5kA with a withstand duration of 3 seconds, adhering to national standards. The rated peak withstand current ranges from 40kA up to 80kA, which is approximately 2.5 times the rated short-time withstand current.

The rated insulation level includes a power frequency withstand voltage of 42kV for the 12kV class over a duration of one minute, with a lightning impulse withstand voltage rating of 75kV for the same class. This insulation capability increases progressively with the voltage class to ensure reliable performance under varying electrical stress conditions.

Protection classes are defined as IP4X for the cabinet shell, providing dust-proof features, while key switch components are rated at IP67, making them suitable for outdoor environments that might involve immersion. The earthing switch supports a short-time rated current of 2000A, ensuring safety during short-circuit fault conditions.

The operating mechanism offers flexibility with both manual and electric operation modes. The electric operation option supports remote control functionality and can be enhanced with an energy storage motor for improved efficiency. For overcurrent protection, the system is compatible with XRNT type high breaking capacity fuses, which cover rated currents from 6.3A up to 400A, typically used for transformer protection.

Environmental adaptability is also addressed, with operating temperatures ranging from -25℃ to +40℃ and an altitude limit up to 1000 meters. Customization options are available for applications requiring ultra-high altitude operation or enhanced corrosion resistance. Humidity tolerance is set to a maximum of 95% without condensation to ensure reliable functioning under various climatic conditions.

The cabinet construction utilizes cold-rolled steel plates coated with plastic spray or stainless steel grades 304 and 316. Stainless steel options are specifically recommended for use in coastal or chemically aggressive environments to provide extended durability.

Primary circuit configurations are customizable, supporting diverse topologies such as 2-in-2-out, 3-in-3-out, and terminal types, making the product adaptable to different distribution network designs. Additionally, the secondary control system can be equipped with optional intelligent measurement and control units, temperature and humidity controllers, as well as fault indicators. These features support integration with SCADA systems for remote monitoring and advanced operational management.

Applications:

The TNNPI High Voltage Switchgears, originating from Henan, China, are engineered to meet the rigorous demands of modern electrical distribution systems. Certified by CE and ISO, these switchgears ensure reliable performance and safety in various high-voltage applications. With a minimum order quantity of just one unit, they are accessible for both small and large-scale projects. Each unit is carefully packaged in a wooden box to guarantee secure delivery within 1-2 weeks.

These Industrial HV Switchgear products operate efficiently at frequencies of 50Hz or 60Hz, making them suitable for a wide range of regional power systems. The operating mechanisms include manual, motorized, and pneumatic options, offering flexibility to accommodate different installation and operational requirements. Additionally, the use of brass screw threads enhances durability and ensures secure connections throughout the system.

The arcextinguishing mediums used in TNNPI High Voltage Switchgears include SF6 gas, vacuum, and air blast technologies. These mediums provide superior arc quenching capabilities, ensuring safe interruption of high voltage currents and minimizing equipment damage. This makes them ideal components in Compact Distribution Switching Stations, where space efficiency and reliable switching are paramount.

High-voltage distribution cabinets equipped with TNNPI switchgears are widely utilized in industrial plants, power generation facilities, substations, and commercial complexes. Their robust construction and advanced features enable seamless control, protection, and isolation of electrical circuits under various operating conditions. Whether managing power flow or performing maintenance tasks, these switchgears deliver exceptional performance and operational safety.

In summary, the TNNPI High Voltage Switchgears are essential for optimizing electrical distribution in demanding environments. Their combination of advanced arc extinguishing technology, versatile operating mechanisms, and sturdy brass components make them a preferred choice for Industrial HV Switchgear systems, Compact Distribution Switching Stations, and High-voltage Distribution Cabinets worldwide.

Customization:

At TNNPI, we offer customized High Voltage Switchgears designed to meet your specific requirements. Manufactured in Henan, China, our products comply with international standards such as IEC 62271 and ANSI C37, ensuring reliable performance and safety. Our High Voltage Switchgears are ideal for applications in power distribution, industrial plants, and utilities, operating efficiently at 50Hz or 60Hz frequency.

We specialize in Compact Distribution Switching Stations, Gas-Insulated RMUs, and MV Switchgear solutions tailored to your needs. Our switchgears utilize advanced arc extinguishing mediums including SF6 gas, vacuum, and air blast to guarantee optimal operation under various conditions.

Certified by CE and ISO, each unit is packaged securely in a wooden box to ensure safe delivery. With a minimum order quantity of just one unit, we offer flexible delivery times ranging from 1 to 2 weeks to meet your project deadlines.