Modular Ring Main Unit

When purchasing power distribution projects, the most headache is the long on-site construction cycle and the difficulty of coordination of various components.Kechang adopts standardized module design, and the functional units such as switches, busbars, and cable rooms are prefabricated in the factory in advance. The site only needs to be simply spliced and combined, and then the external cable docking is completed, and the installation and commissioning can be completed in 1-2 days.This design not only significantly shortens the project construction period, but also flexibly expands the capacity according to the later load growth without the need to replace the equipment as a whole.For projects that are on schedule such as urban distribution network transformation and new construction of industrial parks, this kind of pre-fabricated MV switchgear modules can effectively avoid construction delays and allow the project to land quickly.

The safe operation of power distribution equipment is directly related to the quality of the project, especially in densely populated commercial buildings or enclosed underground spaces.All live parts inside the equipment adopt a fully sealed structure, and the epoxy resin solid insulation pouring process is used to completely eliminate the environmental hazards and safety risks of SFP gas leakage.The key insulation components are made of Class H materials, which can work stably for a long time at a high temperature of 180℃ and effectively delay aging.The relevant design has passed IEC 60076 and UL certification, and the fire risk is extremely low. It is fully applicable even in places with extremely high safety requirements such as hospitals and data centers. It is a veritable SF6-free insulated ring main unit.

Your project may be distributed in coastal high-salt spray areas, high-altitude mountainous areas or dusty industrial areas. The environment is extremely testing for equipment.The protection level of this equipment can reach IP44, and the shell is made of 3.0mm thick anticorrosive galvanized steel plate, which is treated by automatic sealing and welding process, which can effectively block the intrusion of dust, water vapor and corrosive gases.Its normal operating temperature range covers -25℃ to 40℃, and it can operate stably in an environment with a relative humidity of 95% within 2,000 meters above sea level, without the need for additional protective facilities.This IP44 corrosion-resistant switchgear can be adapted to multiple and complex scenarios, allowing you to achieve standardized procurement in different projects and reduce management costs.

The operation and maintenance of traditional equipment requires a lot of manual on-site inspections, especially for remote projects, which consumes time and effort and is easy to miss hidden dangers.The device has a built-in PT100 temperature sensor and an intelligent monitoring module, which can collect data such as operating temperature and switching status in real time, and automatically alarm when it is over temperature.Access to the remote monitoring platform through the MODBUS/RS485 protocol, and the remote control sub-closing operation can be completed with one key in the central control room, shortening the on-site operation that originally took 30 minutes to the second level, which not only improves the operation and maintenance efficiency, but also reduces the risk of personnel coming into contact with high-voltage equipment.This intelligent design can reduce the workload of on-site inspection by 80% and significantly reduce the cost of late operation and maintenance.

In noise-sensitive places such as commercial complexes and residential areas, equipment operating noise is an important consideration when purchasing.By optimizing the iron core laminated structure and operating mechanism, Keshun controls the operating noise of the equipment below 45dB, which complies with IEC noise standards. Even if it is installed in a power distribution room close to an office area or a residential area, it will not cause interference.The daily operation adopts a natural air-cooled mode, and the low-noise fan is automatically activated only at peak load to assist in heat dissipation. With the optimized ventilation tank design, the heat dissipation efficiency is increased by 30% while minimizing energy consumption, which meets the EU EcoDesign energy efficiency requirements.

The voltage level, installation space, and load requirements of each project are different, and it is difficult for standardized products to match exactly.Kechang can customize the configuration of different voltage levels of 12kV-24kV and rated current of 630A-3150A according to your specific needs, and can also flexibly adjust the cabinet size, protection level and wiring method (copper bar or cable terminal).The engineering team will provide detailed technical solutions and quotations within 48 hours to ensure that the customized solutions do not delay the progress of the project.All products have passed CE, UL, RoHS certification, and comply with IEC 60076 and IEEE C57 standards. Whether your project is in Europe, North America or other regions, you can successfully pass local compliance audits, making procurement more worry-free.