• 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
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
Related Knowledges
Cost Differences and Performance Comparison of 35kV New Energy Transformers Based on Dry-Type, Mineral Oil, and Vegetable Oil
Cost Differences and Performance Comparison of 35kV New Energy Transformers Based on Dry-Type, Mineral Oil, and Vegetable Oil
For users, when purchasing a 35kV new energy transformer, choosing between dry-type, mineral oil-filled, or vegetable oil-filled types involves multiple considerations. These include user habits, maintenance-free performance, safety and fire resistance, volume and weight, among others. However, cost differences are undoubtedly one of the most crucial factors.To illustrate the issue intuitively, this paper selects a three-level energy efficiency dual-winding new energy transformer with a rated ca
Ron
07/26/2025
What is the connection group of a transformer?
What is the connection group of a transformer?
Transformer Connection GroupThe connection group of a transformer refers to the phase difference between the primary and secondary voltages or currents. It is determined by the winding directions of the primary and secondary coils, the labeling of their start and end terminals, and the connection mode. Expressed in a clock-like format, there are 12 groups in total, numbered from 0 to 11.The DC method is commonly used to measure the transformer's connection group, mainly to verify whether the con
Vziman
07/26/2025
Working Voltage in Power System
Working Voltage in Power System
Working VoltageThe term "working voltage" refers to the maximum voltage that a device can withstand without sustaining damage or burning out, while ensuring the reliability, safety, and proper operation of both the device and associated circuits.For long-distance power transmission, the use of high voltage is advantageous. In AC systems, maintaining a load power factor as close to unity as possible is also economically necessary. Practically, heavy currents are more challenging to handle than hi
Encyclopedia
07/26/2025
What is Steady State Stability in Power System?
What is Steady State Stability in Power System?
Definition of Steady State StabilitySteady state stability is defined as the capability of an electric power system to sustain its initial operating condition following a small disturbance, or to converge to a state closely approximating the initial condition when the disturbance persists. This concept holds critical significance in power system planning and design, the development of specialized automatic control devices, the commissioning of new system components, and the adjustment of operati
Edwiin
07/26/2025
What is the sequence for powering down the transformer?
What is the sequence for powering down the transformer?
The sequence for shutting down a main transformer is as follows: when de-energizing, the load side should be shut down first, followed by the power supply side. For energizing operations, the reverse order applies: the power supply side is energized first, then the load side. This is because: Energizing from the power supply side to the load side makes it easier to identify the fault range and take prompt judgment and handling measures in case of a fault, preventing the fault from spreading or e
Rockwell
07/26/2025
What are the methods for switching operations of station transformers?
What are the methods for switching operations of station transformers?
Let's take an auxiliary power system with two station transformers as an example. When one station transformer needs to be out of service, there are two operation methods: non-interruptive power supply and instantaneous power interruption. Generally, the method of instantaneous power interruption on the low-voltage side is preferred.The operation method for instantaneous power interruption on the low-voltage side is as follows:Open the 380V power incoming circuit breaker of the corresponding sec
Vziman
07/26/2025
×
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!