Vacuum High Voltage Switchgears Providing Protectionclass IP3X To IP67 Designed to Support and Safe Electrical Switching

Product Description:

Technical Parameters:

The rated voltage options available are 12kV, 24kV, and 36kV, which correspond to distribution network systems of 10kV, 20kV, and 35kV respectively. This range ensures compatibility with common power distribution requirements.

The equipment operates at rated frequencies of 50Hz or 60Hz, making it suitable for integration with the majority of global power grid systems. This flexibility allows it to be deployed worldwide without frequency-related restrictions.

The rated current values supported are 630A and 1250A. The main circuit is designed for long-term operation at these currents, with 630A being the standard configuration to meet typical usage scenarios.

For short-time withstand current (Icw), the device can handle levels of 16kA, 20kA, 25kA, and 31.5kA, with a withstand time of 3 seconds as per national standards. Additionally, the rated peak withstand current (Ip) ranges from 40kA up to 80kA, representing 2.5 times the short-time withstand current, ensuring robust fault tolerance.

The rated insulation level comprises a power frequency withstand voltage of 42kV (for the 12kV class) maintained for 1 minute, and a lightning impulse withstand voltage of 75kV (also for the 12kV class). These insulation indices increase proportionally with higher voltage classes.

Protection classes include IP4X for the cabinet shell, which provides dust protection, and IP67 for switch components, making them suitable for outdoor environments that may involve immersion. This ensures reliable operation under various environmental conditions.

The earthing switch supports a rated current of 2000A for short durations, fulfilling grounding requirements during short-circuit fault conditions to enhance safety and system integrity.

Operational mechanisms include manual and electric operation modes. The electric option offers remote control capabilities, with an optional energy storage motor available to improve operation efficiency and convenience.

Fuse configurations are compatible with XRNT type high breaking capacity fuses, covering rated currents from 6.3A to 400A. These fuses are specifically designed for transformer protection, providing optimized safety measures.

The equipment is designed to operate within an environmental temperature range of -25℃ to +40℃, at altitudes up to 1000 meters. Customization options are available for ultra-high altitude applications. Relative humidity tolerance is up to 95%, provided no condensation occurs, and special anti-corrosion models are offered for challenging environments.

Cabinet materials include cold-rolled steel plates with plastic spraying and stainless steel options (grades 304 and 316). Stainless steel cabinets are particularly suitable for coastal areas and chemically corrosive environments, enhancing durability.

Various primary circuit schemes are supported, such as 2-in-2-out, 3-in-3-out, and terminal types. These configurations can be customized to fit the specific topology requirements of different distribution networks.

For secondary control, optional features include intelligent measurement and control units, temperature and humidity controllers, and fault indicators. These components support SCADA system integration for remote monitoring and management, enhancing operational visibility and control.

Applications:

The High Voltage Switchgears from TNNPI, a reputable brand based in Henan, China, are engineered to meet the rigorous demands of modern electrical distribution systems. Certified with CE and ISO standards, these switchgears ensure reliable performance and safety. Designed for both indoor and outdoor applications, these switchgears are ideal for use as Gas-Insulated RMU (Ring Main Unit) and Indoor HV Switchgear, providing flexibility and efficiency in various power distribution scenarios.

These High Voltage Switchgears are suitable for numerous application occasions and scenarios, including power plants, substations, industrial facilities, commercial complexes, and residential buildings. They are essential components in the electrical network for controlling, protecting, and isolating electrical equipment, ensuring uninterrupted power supply and minimizing downtime. Their ability to operate at frequencies of 50Hz or 60Hz makes them compatible with global power systems.

Thanks to their versatile operating mechanisms—manual, motorized, and pneumatic—these switchgears can be adapted to different operational preferences and requirements. The control types offered include both remote control and local control, enabling operators to manage the switchgear conveniently and safely from a distance or on-site. This is particularly useful in complex electrical grids where quick response times are critical.

The arc extinguishing mediums used in TNNPI High Voltage Switchgears include SF6 gas, vacuum, and air blast technologies. This variety allows for optimal performance in different environmental conditions and application demands. SF6 gas-insulated models, such as the Gas-Insulated RMU, offer compactness and high insulation properties, making them ideal for indoor HV switchgear installations where space is limited.

With a minimum order quantity of just one unit, customers can easily procure these switchgears for small or large projects. Each unit is carefully packaged in a wooden box to ensure safe transit and delivery within 1-2 weeks. Whether upgrading existing electrical infrastructure or building new systems, TNNPI High Voltage Switchgears deliver dependable and efficient performance across a broad range of application occasions and scenarios.

Customization:

At TNNPI, we offer comprehensive product customization services for our High Voltage Switchgears, tailored to meet the specific needs of your projects. Originating from Henan, China, our products are certified with CE and ISO, ensuring top quality and reliability.

Our High-voltage Distribution Cabinets and MV Switchgears can be customized with various arc extinguishing mediums including SF6 Gas, Vacuum, and Air Blast, allowing optimal performance for different operational environments. We provide options for operating mechanisms such as Manual, Motorized, and Pneumatic to suit your switching station requirements.

The switchgears feature robust brass screw threads and are designed to operate efficiently within a temperature range of -25°C to +55°C, making them suitable for diverse industrial conditions. Each unit is carefully packaged 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, enabling quick deployment in power distribution, industrial plants, and utility applications.