1. Fully Sealed & Maintenance-Free Design for Harsh Environments
· Fully Enclosed Stainless Steel Gas Tank: High-voltage live components are hermetically sealed in a stainless-steel gas tank welded with laser deep penetration technology. Combined with international leading static/dynamic sealing technology and German SEILER fully automated helium leak detection equipment, the annual gas leakage rate is ≤0.01%, and the normal service life of the gas tank exceeds 30 years.
· IP67-Rated Gas Tank Protection: Completely isolated from external humidity, dust, and corrosive gases, the equipment operates stably in extreme temperatures (-40°C to +70°C), ensuring long-term reliable performance.
2. Compact Modular Design for Flexible Applications
It seems that the text you provided is incomplete. Please provide the full text you would like me to translate. 40% Space Efficiency Improvement: With a cabinet width of only 600 - 800mm and depth of 1400 - 1820mm, it can be installed in space-constrained locations such as metro mezzanines and data center switchrooms.
· Fully Modular Configuration: Standardized load switch, fuse, and circuit breaker modules support quick assembly and combination, meeting diverse power distribution needs for ring networks, radial systems, and more.
3. Multiple Safety Protections for Personnel & Equipment
It seems that there is no text provided after the "·" symbol. Please provide the text you would like me to translate. Arc Resistance Design: Equipped with professional pressure relief devices and channels, passing the AFLR 25kA/1s internal arc test to effectively release fault arc energy and prevent accident escalation.
· Dual Interlock Protection: Mechanical/electrical interlocks between circuit breakers and disconnectors prevent misoperation; extended busbars are fully insulated and shielded to reduce partial discharge risks.
4. Intelligent Upgrades for Smart Grid Integration
It seems that the text you provided is incomplete. Please provide the full text you would like me to translate. Factory-Integrated Automation Solutions: Integrated smart sensors monitor real-time parameters such as switchgear temperature, circuit breaker position, and mechanical characteristics, supporting remote monitoring and fault early warning.
· Long-Life, High-Reliability Mechanisms: Load switches offer 5,000 mechanical cycles, and vacuum circuit breakers 10,000 cycles—far exceeding industry standards and reducing maintenance costs.
Parameter | Unit | Load Break Switch Cabinet | Fuse Combination Cabinet | Circuit Breaker Cabinet |
Rated Voltage | kV | 40.5 | 40.5 | 40.5 |
Rated Frequency | Hz | 50/60 | 50/60 | 50/60 |
Rated Current | A | 630 | 630 | 630 |
1min Power Frequency Withstand Voltage (Phase-Ground/Phase-Phase) | kV | 95/118 | 95/118 | 95/118 |
Lightning Impulse Withstand Voltage (Phase-Ground/Phase-Phase) | kV | 185/215 | 185/215 | 185/215 |
Rated Short-Circuit Breaking Current | kA | It seems that there is no text provided for translation. Please provide the text you would like me to translate. | 31.5 | 20/25 |
Rated Peak Making Current | kA | 50/63 | 80 | 50/63 |
Short-Time Withstand Current/Time | kA/s | 20/4s, 25/3s | It seems that there is no text provided for translation. Please provide the text you would like me to translate. | 20/4s, 25/4s |
Internal Arc Resistance | It seems that there is no text provided for translation. Please provide the text you would like me to translate. | AFLR, 25kA, 1s | AFLR, 25kA, 1s | AFLR, 25kA, 1s |
Rated Gas Pressure (20°C, Gauge) | MPa | 0.03 | 0.03 | 0.03 |
Annual Gas Leakage Rate | %/Year | ≤0.01% | ≤0.01% | ≤0.01% |
1. Urban Power Distribution Networks: Ideal for compact substations in city centers and underground cable ring rooms, solving space constraints and high-reliability power supply needs.
2. Industrial & Manufacturing Sites: Provides corrosion-resistant, maintenance-free distribution solutions for factories, mines, and chemical parks, ensuring continuous production power supply.
3. Data Centers & Commercial Buildings: Modular design supports rapid capacity expansion, and intelligent monitoring meets 24/7 uninterrupted power supply and unattended operation requirements.
4. Renewable Energy & Smart Grids: Adapts to photovoltaic/wind power integration and microgrid construction, supporting automated remote control for energy internet upgrades.
5. Transportation Hubs: Used in power distribution systems for metro, high-speed rail, and airports, meeting strict safety standards through arc resistance and high-protection design.
Q1: Does the DQS RMU require regular maintenance?
A1: No routine maintenance is needed. The fully sealed SF6 gas insulation ensures an annual leakage rate ≤0.01%, and the long-life operation mechanisms (5,000 cycles for load switches, 10,000 cycles for circuit breakers) mean only periodic remote monitoring via the intelligent system is required.
Q2: Can the equipment be used in wet or dusty environments?
A2: Yes. The gas tank has an IP67 protection rating, resisting water immersion, dust, and corrosive gases—suitable for complex environments like coastal areas, mining sites, and tunnels.
Q3: How does modular design improve installation efficiency?
A3: Pre-assembled functional modules (e.g., circuit breakers, fuses) in standardized frames connect via plug-in busbars on site, eliminating gas handling or complex debugging and reducing installation time by 50% compared to traditional equipment.
Q4: Can intelligent functions be customized?
A4: Yes. Customizable options include temperature sensors, circuit breaker status monitors, and wireless communication units, enabling real-time data upload to management platforms for SCADA or cloud-based monitoring.
Q5: Does the equipment comply with international standards?
A5: Compliant with IEC 62271-200, GB 3906, and other standards, and passed third-party type testing—suitable for global medium-voltage distribution projects.
It seems that the text you provided is incomplete. Please provide the full text you would like me to translate. Technological Leadership: Integrates five core technologies with an industry-leading gas leakage rate (≤0.01%/year).
· Safety & Reliability: Arc-resistant design and dual interlocks protect personnel and equipment.
· Cost & Efficiency: Maintenance-free design reduces operational costs; modular architecture enables fast deployment and expansion.
· Smart Adaptability: Reserved automation interfaces facilitate the upgrade of traditional grids to digital and intelligent systems.