It seems that the text you provided is incomplete. Please provide the full text you would like me to translate. SF6-Free Solid Insulation Design
Environmental Sustainability: Eliminating SF6 gas entirely, the DQG-12 addresses environmental concerns related to greenhouse gas emissions and leakage risks. Its solid insulation, composed of epoxy resin encapsulation, ensures stable performance without compromising safety or reliability.
Enhanced Safety: All live components and switching elements are fully covered or encapsulated in epoxy resin, with sealed cavities to prevent external contaminants. The full-metal shielding design grounds all insulation surfaces continuously, allowing direct contact during operation without electrical hazards.
2.Integrated Mechanism Design
Reliability Boost: The innovative integration of disconnector, load switch, and circuit breaker mechanisms significantly reduces component failures. This streamlined design minimizes mechanical wear, enhancing long-term operational stability.
Low Arc Fault Rate: Engineered to withstand high-voltage stress, the DQG-12 maintains an exceptionally low internal arc fault probability, ensuring system integrity even under extreme conditions.
3. Robust & Adaptable Structure
Three-Phase Separate Configuration: The three-phase independent structure isolates each phase, improving fault tolerance and simplifying maintenance. Its sealed design protects against moisture, dust, sand, and salt fog, making it suitable for harsh environments prone to surface flashover due to air pollution.
Flexible Wiring Options: With customizable connection layouts, the DQG-12 adapts seamlessly to diverse power distribution requirements, from simple radial systems to complex grid networks.
Parameter | Unit | Value |
Rated Voltage | kV | 12 |
Rated Current | A | 630 |
Rated Frequency | Hz | 50 |
1min Power Frequency Withstand Voltage | kV | 42/48 |
Lightning Impulse Withstand Voltage | kV | 75/85 |
Partial Discharge Test (at 1.1Ur) | pC | ≤15 |
Enclosure Protection Level | It seems that there is no text provided for translation. Please provide the text you would like me to translate. | IP4X |
Mechanical Life (Circuit Breaker/Disconnector/Earthing Switch) | Cycles | 10,000/3,000/3,000 |
Rated Short-Circuit Breaking Current | kA | 25 |
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 |
· Urban Grid Upgrades: Ideal for compact substations, underground cable networks, and urban distribution systems, optimizing space and reliability in densely populated areas.
· Industrial Power Distribution: Serves industrial plants, manufacturing facilities, and load centers, providing stable, low-maintenance power supply even in corrosive or high-dust environments.
· Commercial & Residential Buildings: Suited for high-rise buildings, outdoor switchgear stations, and prefabricated substations, ensuring safe and efficient power delivery for critical infrastructure.
It seems that the text you provided is incomplete. Please provide the full text you would like me to translate. Harsh Environment Installations: Excels in challenging settings such as coastal regions (salt fog), deserts (sand/dust), and humid climates, thanks to its sealed, contamination-resistant design.
Q1: Is the DQG-12 environmentally friendly?
A1: Yes, the DQG-12 uses solid insulation instead of SF6 gas, eliminating greenhouse gas emissions and environmental risks associated with gas leakage.
Q2: How often does the RMU require maintenance?
A2: The DQG-12 is virtually maintenance-free. Its solid insulation structure and long-lasting mechanisms reduce the need for regular upkeep, minimizing operational costs.
Q3: Can it operate safely in extreme weather conditions?
A3: Absolutely. With an IP4X-rated enclosure and sealed, contamination-resistant design, the RMU functions reliably in humid, dusty, sandy, and salt-laden environments.
Q4: What safety features protect against electrical faults?
A4: The RMU’s full-metal shielding, three-phase separation, and low arc fault rate ensure safe operation. In case of faults, its AFLR 25kA/1s rating contains internal arcs effectively.
Q5: Does it comply with international standards?
A5: While certified to meet Chinese national standards (GB3906－2020, etc.), its performance metrics align with global industry benchmarks, ensuring compatibility with international projects.