ODM RM6 Fully Enclosed and Fully Insulated Gas-Insulated Ring Network Switchgear Manufacturers, Company
ODM RM6 Fully Enclosed and Fully Insulated Gas-Insulated Ring Network Switchgear Manufacturers, Company
ODM RM6 Fully Enclosed and Fully Insulated Gas-Insulated Ring Network Switchgear Manufacturers, Company
ODM RM6 Fully Enclosed and Fully Insulated Gas-Insulated Ring Network Switchgear Manufacturers, Company
ODM RM6 Fully Enclosed and Fully Insulated Gas-Insulated Ring Network Switchgear Manufacturers, Company
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ODM RM6 Fully Enclosed and Fully Insulated Gas-Insulated Ring Network Switchgear Manufacturers, Company
ODM RM6 Fully Enclosed and Fully Insulated Gas-Insulated Ring Network Switchgear Manufacturers, Company
ODM RM6 Fully Enclosed and Fully Insulated Gas-Insulated Ring Network Switchgear Manufacturers, Company
ODM RM6 Fully Enclosed and Fully Insulated Gas-Insulated Ring Network Switchgear Manufacturers, Company
ODM RM6 Fully Enclosed and Fully Insulated Gas-Insulated Ring Network Switchgear Manufacturers, Company

ODM RM6 Fully Enclosed and Fully Insulated Gas-Insulated Ring Network Switchgear Manufacturers, Company

The RM6 gas-insulated ring main unit (RMU) complies with IEC 62271-200 for medium voltage secondary distribution networks. It integrates switching and protection functions for transformer connection in open ring or radial configurations. Rated up to 24 kV, 630 A busbar current, and 21 kA / 1 s short-circuit withstand. The stainless steel tank, internal arc classification up to 20 kA AFLR, and visible earthing contacts enhance operator safety. The flexible architecture supports LSC 2A, PM partition class, and scalable automation for future-ready distribution management.

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Product Description

Type & Meaning

RM6-4
1 Model
2 Rated voltage (kV)
3 The name of the cabinet type
4 Cable in and out mode

Normal Operating Conditions

Temperature: Maximum 40°C (24h average ≤35°C), minimum -25°C.
Altitude: 12kV model up to 2000m; 24kV model up to 1000m. For higher altitudes, derating applies – consult us.
Sunlight: Avoid direct exposure.
Environment: Free from heavy dust, smoke, corrosive substances, flammable gases, vapor, and salt mist.
Humidity: 24h average RH ≤95%, monthly average RH ≤90%; 24h vapor pressure ≤2.2kPa, monthly ≤1.8kPa.

While condensation is rare, it may occur under high humidity with sudden temperature changes. Proper ventilation and compliance with civil engineering standards are recommended to prevent insulation damage.

Product Features

Enhanced Safety: Enclosed design minimizes exposure to live parts, reducing electrical shock risks; built-in protection mechanisms (e.g., arc fault containment) enhance operational safety.
Reliable Performance: High-quality components ensure stable current control and fault interruption, suitable for continuous operation in harsh industrial environments.
Flexible Configuration: Modular design allows customization based on voltage levels, load capacities, and application needs (e.g., indoor/outdoor installation).
Easy Maintenance: Accessible compartments and standardized parts simplify inspection, repair, and component replacement, reducing downtime.
Smart Integration: Modern switchgear supports remote monitoring and control via digital interfaces, enabling real-time data analysis and predictive maintenance for improved system efficiency.

Product Display

RM612 Fully Switchgear
RM6-12~1
RM6 Fully Switchgear

Technical Parameters

Rated voltage Ur kV 12 17.5 24
Rated frequency Fr Hz 50 or 60 50 or 60 50 or 60
Insulation level
Industrial frequency
50Hz/1min		 Phase-to-phase, phase-to-earth Ud kV rms 28 38 50
Across isolating distance Ud kV rms 32 45 60
Lightning impulse withstand Phase-to-phase, phase-to-earth Up kV peak 75 95 125
Across isolating distance Up kV peak 85 110 145
Rated current Ir A 630 630 400 400 630 630
Rated current busbars Ir A 630 630 400 400 630 630
Rated peak current lp kA 62.5 52.5 31.25 40 40 50
Short-time withstand current It kA rms 25 21 12.5 16 16 20
tk S 1 1 or 3 1 1 1 1 or 3
Breaking capacity Active load load A 630 630 400 400 630 630
Earth fault lef1 A 320 320 320 320 320 320
Cable charging Icc A 110 110 110 110 110 110
Making capacity of switch and earthing switches Ima kA peak 62.5 52.5 31.25 40 40 50
Bushing (1) Type C C B or C B or C C C
Mechanical endurance Switch disconnector M1 Number of openings 1000 1000 1000
Earthing switch M0 Number of openings 1000 1000 1000
Electrical endurance Switch disconnector E3 Number of CO at rated current 100 100 100
Number of short-circuit making operations 5 5 5 5 5 2
Earthing switch E2 Number of short-circuit making operations 5 5 5 5 5 2

(1) No bushing for IC function

Monitoring & Protection System

Testing instrument: Convenient to observe, monitor, the value of current voltage.
Industry Top Plug: Sealing is stronger, conductive performance good quality reliable safety.
Three-phase transformer integrated: Three-phase unbalance current outflow and reflux interpolation detection, accurate and reliable detection protection performance.
Zero sequence current transformer: Using the high accuracy zero sequence current transformer can make a full set of equipment protection function. Safe in operation.
RM6-3

Frequently Asked Questions (FAQ)

Q1: What are the primary rated voltage levels for the RM6 switchgear?

The RM6 switchgear operates at rated voltage levels of 12kV, 17.5kV, and 24kV, supporting standard frequencies of both 50Hz and 60Hz.

Q2: What is the maximum operating altitude for this equipment?

The 12kV model is rated for altitudes up to 2,000 meters, while the 24kV model is suited for altitudes up to 1,000 meters. For applications above these altitudes, standard derating considerations apply.

Q3: What ambient temperature ranges are supported?

The equipment is designed to operate safely between a minimum of -25°C and a maximum of 40°C, with a 24-hour average ambient temperature of ≤35°C.

Q4: How does the switchgear ensure operational safety?

Safety is achieved through a fully enclosed design that minimizes exposure to live electrical parts, internal arc fault containment, and standard mechanical interlocks.

Q5: What protection transformers are integrated into the system?

The monitoring and protection system incorporates integrated three-phase transformers for unbalance and reflux detection, along with high-accuracy zero-sequence current transformers for comprehensive system fault protection.

Q6: What is the mechanical endurance of the switches?

Both the switch disconnector (class M1) and earthing switch (class M0) provide a mechanical endurance rating of up to 1,000 operational cycles.

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