DOS1224 SF6 Gas-Insulated Ring Main Unit
DOS1224 SF6 Gas-Insulated Ring Main Unit
DOS1224 SF6 Gas-Insulated Ring Main Unit
Product details
FAQ
Product Introduction

It seems that there is no text provided for translation. Please provide the text you would like me to translate. Fully Sealed & Environmentally Resilient Design

Stainless Steel Gas Tank: All high-voltage live components are hermetically sealed within a 3mm 304 stainless steel gas tank, welded by a state-of-the-art 3D five-axis laser system imported from TRUMPF, Germany. This precision welding guarantees exceptional airtightness, structural integrity, and aesthetic appeal.

German-Made Quality Assurance: Utilizing SEILER’s fully automated helium leak detection equipment, the gas tank achieves an industry-leading leakage rate of <0.01% per year, ensuring a lifespan exceeding 30 years with zero maintenance. The IP67-rated gas tank and IP4X-rated outer shell shield the RMU from dust, water, and corrosive elements, enabling stable operation in extreme temperatures (-40°C to +70°C).

2. Compact & Modular Flexibility

Space-Saving Design: With a compact footprint (360/425mm width x 780mm depth x 1865mm height), the DQS RMU is ideal for space-constrained installations, such as urban substations, data centers, and underground facilities.

Scalable Configuration: Its modular architecture allows seamless customization, enabling quick assembly of load switches, fuses, and circuit breakers to meet any power distribution requirement. Whether for ring networks, radial systems, or complex grid setups, the DQS RMU adapts effortlessly.

3. Enhanced Safety & Operational Excellence

Interlock & Insulation Protection: The extended busbars are fully insulated and shielded, minimizing partial discharge risks. Simple yet effective mechanical and electrical interlocks prevent misoperation, safeguarding both equipment and personnel.

High-Performance Operation: The reliable operating mechanism ensures a mechanical lifespan of 10,000 cycles for circuit breakers and load switches, surpassing industry standards. The load switch-fuse combination units achieve transfer currents of 12kV/1750A and 24kV/1400A, guaranteeing efficient fault protection.

4. Intelligent & Factory-Integrated Solutions

Automated & Smart Grid Ready: Offering factory-integrated automation, the DQS RMU supports intelligent monitoring of critical parameters, including temperature, breaker status, and mechanical performance. This enables remote control, predictive maintenance, and seamless integration with smart grid systems.

Consistent Quality Assurance: Manufactured on fully automated assembly lines, each unit undergoes rigorous quality checks, ensuring uniform performance and reliability across the entire product range.


Parameter

Unit

12kV Model

24kV Model

Rated Voltage

kV

12

24

Rated Frequency

Hz

50

50

Rated Current

A

630

630

1min Power Frequency Withstand Voltage

kV

42/48

65/79

Lightning Impulse Withstand Voltage

kV

75/85

125/145

Gas Tank Protection Level

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IP67

IP67

Outer Shell Protection Level

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IP4X

IP4X

Mechanical Life (Circuit Breaker/Load Switch)

Cycles

10,000/10,000

10,000/10,000

Internal Arc Resistance

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AFLR, 20kA, 0.5s

AFLR, 20kA, 0.5s

Rated Gas Pressure (20°C, Gauge)

MPa

0.03

0.03

Annual Gas Leakage Rate

%/Year

≤0.01%

≤0.01%

Dimensions (Width x Depth x Height)

mm

360/425 x 780 x 1865

360/425 x 780 x 1865


· Urban Power Grids: Ideal for compact substations and underground cable networks in densely populated areas, optimizing space and ensuring reliable power supply.

· Industrial Facilities: Provides corrosion-resistant, maintenance-free solutions for factories, mines, and chemical plants, minimizing downtime and enhancing productivity.

It seems that the text you provided is incomplete. Please provide the full text you would like me to translate. Data Centers & Commercial Buildings: Supports 24/7 operation with intelligent monitoring, ensuring uninterrupted power for critical infrastructure.

It seems that there is no text provided after the bullet point. Please provide the text you would like me to translate. Renewable Energy Integration: Facilitates seamless connection of solar, wind, and microgrid systems, enabling efficient power distribution and grid stability.

· Transportation Hubs: Meets stringent safety standards for power distribution in metro, railway, and airport applications, ensuring robust performance in demanding environments.

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E-mail:Bonniewang668@gmail.com

              Bonniewang@tranyoosupply.com