Atmospheric Pressure Sealed Nature-Air Insulated RMU/Switchgear (Intelligent Switchgear)
Atmospheric Pressure Sealed Nature-Air Insulated RMU/Switchgear (Intelligent Switchgear)

ASNA RMU/Switchgear

The Atmospheric Pressure Sealed Nature-Air Insulated RMU/Switchgear integrates intelligent switchgear technology, making it an essential part of modern power distribution systems. This switchgear system combines advanced sensing technology, data processing, and smart analysis algorithms to provide real-time data and improve the management of electrical systems.

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These intelligent RMUs include features such as dual power transfer (ring main unit with automatic transfer function (ATF)), smart diagnostics, and One-Button Sequential Control, which streamline operations and significantly increase efficiency. They are suitable for distribution system ranging from 7.2kV to 24kV and offer remote monitoring and control, enabling operators to monitor key indicators and system performance in real-time. This functionality improves operational efficiency and reduces maintenance needs.

Intelligent switchgear is transforming the electronics industry by providing real-time monitoring, fast data processing, and intelligent maintenance capabilities. These systems can detect and control abnormal conditions such as short circuits, overload, component failure, etc., preventing costly breakdowns and minimizing energy losses. Unlike traditional switchgear, intelligent systems offer remote control and predictive diagnostics, reducing manual maintenance and operational costs.
Dual Power Transfer Switch

The dual power transfer switch allows for seamless selection and switching between two power sources. It offers multiple control modes, including automatic, manual, remote, and communication-based switching, giving users the flexibility to adapt to various control needs in real-time. This feature is crucial for maintaining continuous power supply and minimizing the risk of outages caused by single-source failures.

The dual power transfer switch effectively responds to power outages and voltage abnormalities, ensuring a reliable, high-quality power supply for critical loads and sensitive equipment. This feature guarantees safe operation and continuous power in environments where stability and uninterrupted energy flow are essential.

Dual Power Transfer Switch
Intelligent Detection System

The intelligent detection system provides real-time monitoring and data collection through various sensors. It continuously gathers critical data, such as mechanical characteristics, partial discharge testing, and temperature readings, transmitting this information via wired or wireless connections to a monitoring center or cloud platform. This real-time data forms the basis for further analysis and decision-making.

The dual power transfer switch effectively responds to power outages and voltage abnormalities, ensuring a reliable, high-quality power supply for critical loads and sensitive equipment. This feature guarantees safe operation and continuous power in environments where stability and uninterrupted energy flow are essential.

Intelligent Detection System
One-Button Sequential Control

The one-button sequential control simplifies power-on and power-off procedures into a single press, delivering fast, efficient operation with minimal effort.

Key Advantages

  • Increased operational efficiency: The one-button control simplifies complex manual operations into straightforward command inputs, drastically reducing operation time and minimizing errors, thereby boosting overall efficiency.
  • Enhanced safety: By automating control processes, it reduces the risks associated with manual operations and minimizes the chances of human error, effectively preventing accidents caused by operational mistakes.
  • Lower maintenance costs: The intelligent switchgear system has significantly reduced need for manual inspections and maintenance tasks, ultimately lowering operational and maintenance costs over time.
One-Button Sequential Control
More About Air Insulated RMU
  • How does the RMU ensures safe and reliable operation?

    A:
    First, the atmospheric pressure fully sealed system shields the RMU from external effects and guarantees the stable operation. Second, the switchgear’s single-phase insulating interior eliminates risks of internal arcing explosion. Third, the insulating medium inside the cabinet is air of atmospheric pressure which prevents the insulation performance from being weakened by pressure leak during the service life.

  • What is the status of atmospheric pressure sealed air insulated RMU in China?

    A:
    In China, the atmospheric pressure sealed air insulated RMU has become a widely adopted solution within the power distribution networks of the country’s two largest state-owned grid companies: State Grid Corporation of China (SGCC) and China Southern Power Grid (CSG). Since its inclusion in their procurement catalog in 2017, the air insulated RMU has been recognized as a standard product, with both corporations making large-scale purchases each year. This marks a significant step forward in its adoption across the country, reinforcing its role as a reliable and environmentally friendly option for modern power distribution.

  • What is the installation requirement?

    A:
    The RMU can be mounted against wall and 80cm of space should be preserved in front of the cabinet for installation. The switchgear adopts lower incoming and lower outing of cable. Please contact us if you prefer other installation methods.

  • Is there any possibility of combining the HM POWER’s RMU with other brands’ switchgear?

    A:
    Combining switchgears of different brands is not advised, as they vary in plug and circuit and combining them may result in risks.

HM POWER has long been engaged in the development and manufacture of smart grid power distribution equipment. With a focus on simplicity, reliability and safety, our fully sealed air insulated ring main units are trusted by customers around the globe. In order to guarantee that the air insulated switchgears are engineered and built to the highest standards of quality, our team of professionals, who have decades of experience in power distribution, strives for breakthrough technology to ensure that every product we supply is of premium quality.
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