XGN15-12 Metal-enclosed Ring Main Unit (RMU)
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XGN15-12 Metal-enclosed Ring Main Unit (RMU)

The XGN15-12 type metal-enclosed ring network switchgear is a new generation of dedicated switchgear for power distribution automation. The main switch uses a sulfur hexafluoride load switch or an environmentally friendly gas-insulated switch, and the entire cabinet adopts an air-insulated structure, featuring a compact structure, reliable performance, and flexible expansion capabilities. This equipment is suitable for three-phase AC 50Hz indoor power distribution systems with a rated voltage of 12kV, and is widely used in industrial and civil cable ring networks and power supply terminal systems, primarily for the reception and distribution of electrical energy. It is particularly suitable for small secondary substations, switching stations, industrial and mining enterprises, urban residential areas, airports, railways, tunnels, high-rise buildings, and other power system locations, meeting the requirements for safe and reliable operation and automated management.

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Project Parameter value
Rated voltage 12kV
Rated lightning impulse withstand voltage (phase-to-phase and phase-to-ground) 12kV
Rated lightning impulse withstand voltage (between break points) 85kV
1-minute power frequency withstand voltage (phase-to-phase and phase-to-ground) 42kV
1-minute power frequency withstand voltage (between break points) 48kV
Main bus rated current 630A
Branch bus rated current 630A
Rated short-time withstand current of main circuit 20*kA
Rated short-time withstand current of grounding circuit 20*kA
Rated peak withstand current 63**kA
Transfer current 1700A
Protection level IP3X
Jiangsu Hengyuan Transformer Co., Ltd. is dedicated to providing safe, efficient, and reliable power equipment solutions for power systems, industrial sectors, and infrastructure construction.
We are a professional enterprise specializing in the research, development, and manufacturing of power equipment. Our main products include oil-immersed power transformers, dry-type transformers, combined transformers, high/low-voltage prefabricated substations, switchgear, cable branch boxes, power distribution boxes, and complete electrical equipment systems.
With strong technical capabilities and strict quality management, Hengyuan is committed to delivering stable and high-performance power solutions to customers worldwide.
About
Jiangsu Hengyuan Transformer Co., Ltd.
Jiangsu Hengyuan Transformer Co., Ltd. is dedicated to providing safe, efficient, and reliable power equipment solutions for power systems, industrial sectors, and infrastructure projects.
We specialize in the R&D and manufacturing of power equipment, with main products including oil-immersed power transformers, dry-type transformers, combined transformers, high/low-voltage prefabricated substations, switchgear, cable branch boxes, power distribution boxes, and complete electrical equipment systems.
The company is among the first group of recommended manufacturers for urban and rural power grid construction and upgrading by the National Economic and Trade Commission of China.
Over the years, our products have been widely used in power systems across Jiangsu, Anhui, Shanghai, Jiangxi, Fujian, Zhejiang, Guangxi, Hebei, and other regions in China.
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Jiangsu Hengyuan Transformer
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Jiangsu Hengyuan Transformer
Jiangsu Hengyuan Transformer