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China Suppliers High-Voltage AC Ring Main Switchgear Factory - HXGN15-12 Compact Switchgear for Power Systems

The HXGN15-12(F) and HXGN15-12(FR) compact fixed AC metal-enclosed switchgear, commonly referred to as switchgear, is expertly designed for ring-main or radial power supply systems with a rated voltage of 12 kV and a rated current of up to 630 A. This versatile equipment is particularly ideal for installation in prefabricated substations, providing essential control and protection for power systems, Manufactured in China, this product features the advanced FLN36-120 SF₆ load break switch or the FLRN36-12D load break switch–fuse combination unit, securely housed in insulated enclosures. Its compact size, lightweight design, and simple operation facilitate ease of use, while its low operating force and reliable interlocking systems ensure optimal performance. With maintenance-free operation, this high-voltage switchgear represents the next generation of technology, catering to the evolving needs of urban power grid renovation and construction, As a leading factory amongst suppliers, we are committed to delivering high-quality switchgear solutions that meet the highest industry standards

Product Description

Structural Features

The cabinet frame is fabricated from aluminum-zinc coated steel sheet via CNC equipment and laser cutting processes. Adopting a fully assembled structure with no welding points whatsoever, the cabinet features high precision, high strength, corrosion resistance, light weight and excellent universality.

Technical Parameters
Rated Voltage12 kV
Rated Lightning Impulse Withstand Voltage75 kV (phase-to-phase and phase-to-earth) | 85 kV (fracture-to-fracture)
Power Frequency Withstand Voltage (1 min)42 kV (phase-to-phase and phase-to-earth) | 48 kV (fracture-to-fracture)
Rated Frequency50/60 Hz
Rated Current630 A (main busbar) | 630 A (branch busbar)
Rated Short-Time Withstand Current20 kA / 3 s (main circuit) | 20 kA / 2 s (earthing circuit)
Rated Peak Withstand Current50 kA
Transfer Current1700 A
Protection ClassIP2X
Mechanical Life of Load Switch2000 operations
Mechanical Life of Earthing Switch2000 operations
Operating Conditions

Altitude: Up to 1000 m

Ambient Temperature: -5°C to +40°C

Relative Humidity: ≤90% (at 15°C)

Seismic (Horizontal): 0.4g

Seismic (Vertical): 0.2g

Product Display
Indoor High-Voltage AC Ring Main Switchgear
Frequently Asked Questions
Q What is the rated voltage of this switchgear?
The rated voltage is 12 kV, designed specifically for medium-voltage distribution networks in industrial and utility environments.
Q What materials are used for the cabinet frame?
It is constructed from aluminum-zinc coated steel sheets. The use of CNC and laser cutting ensures a weld-free, high-precision, and corrosion-resistant structure.
Q What are the short-circuit withstand capabilities?
The main circuit has a rated short-time withstand current of 20 kA for 3 seconds, while the earthing circuit is rated for 20 kA for 2 seconds. The peak withstand current is 50 kA.
Q What are the standard operating environmental conditions?
The unit operates optimally at altitudes up to 1000m, temperatures between -5°C and +40°C, and humidity levels below 90%. It is also built to resist seismic acceleration.
Q What is the mechanical lifespan of the switching components?
Both the load switch and the earthing switch are engineered for a mechanical life of 2000 operations, ensuring long-term operational reliability.
Q What is the protection rating for this indoor unit?
This switchgear features an IP2X protection class, providing safety against accidental contact with internal live components by fingers or small objects.

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