Download the app
  • RMR-12kV...17.5kV...24kV SF6Ring Main Unit
RMR-12kV...17.5kV...24kV SF6Ring Main Unit
discuss personally
Model
RMR-24
RMR-17.5
RMR-12
Basic info Product Detail Supplier
Basic info
Brand ROCKWILL
Model NO. RMR-12kV...17.5kV...24kV SF6Ring Main Unit
Rated voltage 24kV
Rated normal current 630A
Series RMR
Product Detail

Description ：

 The RMR series is a medium voltage ring main unit insulated with SF6. The main switch can be a vacuum circuit breaker with permanent magnet mechanism or spring mechanism. It combines air insulation with SF6 gas compartment, which is compact and expandable, suitable for distribution automation. It has a compact structure, flexible operation, reliable interlocking, adopts sensing technology and the latest protective relays, advanced technology, lightweight and flexible assembly, suitable for various occasions, and meets the needs of different users.

Main function introduction:

  • Excellent Insulation Performance

  • Good Arc - Quenching Ability

  • Compact Structural Design

  • Reliable Sealing Performance

  • Flexible Operation and Maintenance

  • Comprehensive Protection and Safety Performance

Technology parameters:

1.jpg

Foundation schematic diagram

image.png

image.png

Q:What is the SF6 ring main unit?

A:An SF6 ring main unit is a key component in medium - voltage power distribution systems. It uses SF6 gas for insulation and arc - quenching. Compact in design, it integrates functions like switching, protection, and connection. It ensures stable power supply in various scenarios, from urban grids to industrial zones, with high reliability and safety.

Q:How is SF6 measured?

A:SF6 can be measured in several ways. One common method is using a gas density monitor to measure the density of SF6 in a closed system. Another is via a pressure gauge to check its pressure, as pressure is related to gas content. Additionally, infrared spectroscopy can be used to analyze the concentration of SF6 in the air.

Q:What is the purpose of RMU?

A:The Ring Main Unit (RMU) serves crucial purposes in electrical distribution. It enables efficient power distribution in urban areas, industrial complexes, and commercial buildings. RMUs house switches, fuses, and circuit breakers to control and protect electrical circuits. They simplify connections between power sources and consumers, enhance grid reliability, and help manage load distribution, ensuring stable power supply.



Know your supplier
ROCKWILL
Rockwill Electric Group Global Manufacturer of High voltage and medium-voltage power equipment and smart grid solutions. Headquartered in Wenzhou, China. Serving 100+ countries with quality, innovation, and trust. What We Offer: • HV-MV switchgear (VCB, SF₆ circuit breakers, RMU, GIS) • Distribution transformers and substations • Smart grid and monitoring systems • Solar, wind, EV charging, and energy storage solutions • EPC turnkey power projects Certified: ISO 9001 / ISO 14001 / ISO 45001
Main Categories
High Voltage Electrical Apparatus
Business Type
Design/Manufacture/Sales
Highest Annual Export (USD)
$150,000,000
Professional Experience
16 years
Workplace
108000m²m²
占位
占位
Related Products
More
Related Knowledges
More
What is the difference between a dielectric and an insulator?
What is the difference between a dielectric and an insulator?
Dielectrics and insulators are distinguished primarily by their applications. One of the main differences is that a dielectric can store electrical energy by becoming polarized in an electric field, whereas an insulator resists the flow of electrons to prevent current conduction. Other key differences between them are outlined in the comparison chart below.Definition of DielectricA dielectric material is a type of insulator that contains few or no free electrons. When subjected to an electric fi
Edwiin
08/30/2025
Fault Analysis and Treatment of Oil-Immersed Transformers
Fault Analysis and Treatment of Oil-Immersed Transformers
Oil Leakage at Welded JointsOil leakage at welded joints primarily stems from poor welding quality, such as incomplete or detached welds, and defects like pinholes and gas pores. Although oil-immersed transformers are initially coated with solder and paint during manufacturing, potentially masking these issues temporarily, the defects tend to surface during operation. Additionally, electromagnetic vibration can cause weld cracks, leading to oil leakage.To resolve such leaks, the first critical s
Edwiin
08/29/2025
What losses occur during operation of the transformer? How to reduce losses?
What losses occur during operation of the transformer? How to reduce losses?
Transformers experience various types of losses during operation, primarily categorized into two main types: copper losses and iron losses.Copper LossesCopper losses, also known as I²R losses, are caused by the electrical resistance of the transformer windings—typically made of copper. As current flows through the windings, energy is dissipated in the form of heat. These losses are proportional to the square of the load current (I²R), meaning they increase significantly with high
Rockwell
08/29/2025
Cable Fault Detection, Testing, Location and Repair
Cable Fault Detection, Testing, Location and Repair
I. Methods for Cable Testing and Inspection:Insulation Resistance Test: Use an insulation resistance tester to measure the insulation resistance value of the cable. A high insulation resistance value indicates good insulation, while a low value may suggest insulation problems requiring further investigation.Voltage Withstand Test: Apply a high-voltage test using a high-voltage tester to verify whether the cable can withstand high voltage under its rated operating conditions. Under normal circums
Leon
08/29/2025
Cable Quality Inspection and Cable Detection & Testing
Cable Quality Inspection and Cable Detection & Testing
Power cable quality inspection and cable testing are conducted to ensure that the cable's quality and performance meet specified requirements, thereby guaranteeing the safe and stable operation of power systems. Below are some common contents of power cable quality inspection and cable testing:Visual Inspection: Check the cable surface for physical defects such as damage, deformation, or scratches to ensure the cable's exterior is intact.Dimensional Measurement: Measure dimensional parameters su
Edwiin
08/29/2025
Transformer Detection, Testing, Maintenance and Servicing
Transformer Detection, Testing, Maintenance and Servicing
Transformer testing, inspection, and maintenance are essential tasks to ensure normal operation and extend the service life of transformers. Below are some recommended steps:Visual Inspection: Regularly inspect the transformer's exterior, including the enclosure, cooling system, and oil tank. Ensure the enclosure is intact, free from corrosion, damage, or leakage.Insulation Resistance Testing: Use an insulation resistance tester to check the transformer's insulation system. Verify that the insul
Vziman
08/29/2025
×
Inquiry
Download
IEE-Business is dedicated to serving the personnel in the global power industry.
Join IEE-Business, not only can you discover power equipment and power knowledge, but also canhnd like - minded friends!
App Store App Store App Store App Store App Store App Store App Store App Store
App Store