• 36kV 40.5kV air insulated Ring Main Unit (RMU)
36kV 40.5kV air insulated Ring Main Unit (RMU)
discuss personally
Model
SM66-40.5
SM66-36
Basic info
Brand ROCKWILL
Model NO. 36kV 40.5kV air insulated Ring Main Unit (RMU)
Rated voltage 40.5kV
Rated normal current 630/800A
Rated frequency 50/60Hz
Series SM66
Product Detail

Description :

SM66 unit type SF6 ring net cabinet with SF6 load switch as main switch, for whole cabinet is suitable for electric distribution automation and compact also expandable metal close switchgear. It characters in its simple structure, flexible operation, reliable interlocking and convenient installation etc.which can provide the satisfactory technical projects both for different application occasions and users. With the adoption of sensor technology and the protection relay up to date, plus the advanced technology and flexible assembly project, SM66 unit type SF6 ring net cabinet can completely meet the requirement of continuously variable market.

Main function :

  • Good Insulation Performance;

  • Strong Arc Extinguishing Ability;

  • Excellent safety performance ;

  • Flexible and Reliable Operation;

  • Compact Structure and Modular Design;

  • High Degree of Intelligence.

Technology parameters:

36kV 40.5kV air insulated Ring Main Unit RMU2.png

Outline dimension drawing:

36kV 40.5kV air insulated Ring Main Unit RMU (1).png

Fixing of units:

36kV 40.5kV air insulated Ring Main Unit RMU (2).png

36kV 40.5kV air insulated Ring Main Unit RMU (3).png

What is the purpose of a ring main unit RMU?

A:Ring main unit (RMU) is used to distribute electrical power in a medium - voltage distribution network. It allows for sectionalizing the network, isolating faults, and enabling power transfer between different sections of the ring - shaped power network, ensuring reliable power supply.

What does the RMU stand for?

A:RMU stands for Ring Main Unit. It is a type of electrical switchgear used in medium-voltage electrical distribution systems, typically for distributing power in a ring circuit configuration.




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
Documents
Restricted.
SM66 type 36kV 40.5kV air insulated Ring Main Unit (RMU)
Manual English
Consulting
Related Products
Related Knowledges
Analysis of Abnormal Causes of High-Voltage Cable Grounding Circulation and Typical Cases
Analysis of Abnormal Causes of High-Voltage Cable Grounding Circulation and Typical Cases
I. Introduction to Cable Grounding Loop CurrentCables rated 110 kV and above use a single-core structure. The alternating magnetic field generated by the operating current induces a voltage on the metallic sheath. If the sheath forms a closed circuit through the earth, a grounding loop current will flow on the metallic sheath. Excessive grounding loop current (loop current exceeding 50 A, more than 20% of the load current, or a ratio of maximum-to-minimum phase current greater than 3) not only a
Felix Spark
09/03/2025
Considerations and Recommendations for Flame-Retardant Selection of High-Voltage Cables
Considerations and Recommendations for Flame-Retardant Selection of High-Voltage Cables
1.Flame-Retardant Cable Classification StandardsThe flame-retardant standard system is divided into two main categories. The first category follows the "Classification of Burning Behavior for Electric and Optical Fiber Cables" GB 31247. Cables complying with this standard system are widely used in densely populated areas such as high-speed railways and subways. This standard imposes strict requirements on parameters such as smoke density, heat release, and total smoke production, and cables typi
James
09/03/2025
Repair of high-voltage cable metallic sheaths
Repair of high-voltage cable metallic sheaths
I. Functions of Metallic Sheaths and Necessity of RepairThe metallic sheath of high-voltage cables is a metal shielding structure laid outside the insulation layer, including types such as lead sheaths, aluminum sheaths, and steel wire armor. Its core functions include mechanical protection (resisting external impact and compression), electrochemical corrosion protection (isolating moisture and soil pollutants), electromagnetic shielding (reducing electromagnetic interference to the environment)
Felix Spark
09/03/2025
What factors need to be considered when designing a transformer?
What factors need to be considered when designing a transformer?
Transformer design is a complex process that requires consideration of multiple factors to ensure safe and efficient operation. In addition, compliance with international and local regulations is essential to guarantee that transformers meet safety and performance standards. Below are key factors to consider in transformer design and the relevant regulations to follow:Transformer Design Factors: Voltage and Frequency: Determine the input and output voltage levels and the operating frequency. The
Vziman
09/02/2025
What failure modes are possible in a transformer? How to identify and fix these failures?
What failure modes are possible in a transformer? How to identify and fix these failures?
Transformers are critical components in power systems, and various failure modes can affect their operation. Timely identification and resolution of these failure modes are essential to prevent costly downtime and ensure system reliability. Below are some common transformer failure modes, along with methods to identify and address them: Insulation FailureIdentification: Insulation failure leads to decreased insulation resistance, which can be detected through insulation resistance testing (megge
Edwiin
09/02/2025
A hybrid DC circuit breaker
A hybrid DC circuit breaker
Most DC molded-case circuit breakers use natural air arc extinction, and there are typically two arc extinguishing methods: one is conventional opening and closing, where the contacts axially stretch the arc, while the conductive circuit generates a magnetic field that bends and elongates the arc, pulling it lengthwise perpendicular to the arc axis. This not only increases the arc length but also induces lateral motion, enabling air cooling to achieve arc extinction.The other method involves the
Echo
09/02/2025
×
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!