Product details

■Product Introduction

Since the 1950s, the development of medium voltage switchgear has gone through stages such as open, box, and metal enclosed. There are no longer any problems in meeting the functional requirements of the equipment, and the products have already been serialized and fully covered in terms of usage. The rapid development of environmentally friendly gas insulated ring main units with small size, maintenance free, high modularity, safety and reliability can realize remote monitoring, control and management of the power system distribution network, meeting the needs of power grid optimization, electricity safety, energy management, energy conservation and consumption reduction; The system can be widely applied in intelligent power distribution fields such as transportation, factories, hospitals, schools, buildings, residential communities, and commercial office buildings.

HBN-12 energy-saving and environmentally friendly fully insulated ring main unit has fully introduced leading production equipment and manufacturing technology, achieved localized production, greatly reduced manufacturing costs, shortened delivery cycles, and received high praise from users after its launch.

■Product Features

>Functional composite and integrated products

The inflatable housing of the switchgear is made of high-quality 2.5mm thick stainless steel plate welded by laser, ensuring the sealing reliability of the air box, high mechanical strength, good corrosion resistance, and the protection level of the inflatable housing reaches IP67; The air box is equipped with explosion-proof membranes, which can effectively prevent damage to people and equipment caused by high air pressure; Encapsulating all conductive components in an air box can not only avoid the influence of external environmental factors, but also improve operational reliability, enabling it to have maintenance free (or minimal maintenance) functionality, while also meeting the requirements of miniaturization.

The switch adopts a three position (isolation+grounding)+vacuum arc extinguishing chamber structure, which is currently the most mature configuration method in technology and is particularly suitable for the current operation and maintenance needs of the power grid. Environmentally friendly and pollution-free

The insulation medium of HBN-12 energy-saving and environmentally friendly fully insulated ring main unit is zero grade dry air (purchased externally) or 99.99% pure N2 that complies with GB/T8979-2008. Gas leakage will not have any impact on the external environment and does not require any recycling treatment.

A complete mechanical chain

The operation panel of HBN-12 energy-saving and environmentally friendly fully insulated ring main unit has a complete five proof mechanical interlocking function, and all interlocking functions are configured internally. Please follow the operating instructions in the order of operation, which is very convenient to use.

Flexible and scalable design

The HBN-12 energy-saving and environmentally friendly fully insulated ring main unit is designed with modularity, which allows various modules to be connected through dedicated busbar connectors to achieve diverse unit combinations, maximizing the satisfaction of complex and diverse distribution design schemes in various parts of China.

■product structure

1. Ammeter 2. Microcomputer comprehensive protection device twelve 3. Capacitive live indicator The live indicator displays whether the casing is live, and the three sockets below the indicator light can be used for secondary phase verification. The switch button for setting the live indicator effectively extends its service life. fourteen 4. Fault indicator five Detect the current in the power supply line, and when there is a short-circuit fault current or grounding fault current, an alarm indication will appear. 5. Isolation observation window six sixteen Through this observation window, one can see the opening and closing status of the grounding switch and whether the isolation switch is closed or open 6. Grounding switch operating hole eighteen By using the operating handle to rotate the grounding switch operating shaft, the grounding can be opened and closed. 7. Main switch energy storage indication twenty Observing the energy storage indicator of the main switch can grasp the energy storage status of the main switch operating mechanism Energy storage operation hole twenty-one Use the operating handle to rotate the energy storage mechanism shaft, allowing the main switch operating mechanism to store energy. 9. Energy storage operation hole padlock device The padlock plate linked by the padlock device covers the energy storage operation hole, and only by turning the padlock device can the operation handle be inserted into the operation hole. When not in use, a padlock can be configured to prevent unauthorized personnel from making mistakes. 10. Counter indication Indicate the cumulative number of on/off cycles of the main switch operating mechanism. 11. Cable room door