DQC-40.5 Gas-Insulated Digital SwitchgearMedium-Voltage Switchboard
The DQC-40.5 represents a new generation of digital, gas-insulated switchgear (C-GIS). Its fully enclosed system, with all primary equipment sealed in stainless steel enclosures, ensures high reliability, personnel safety, and a maintenance-free lifecycle.
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This switchgear integrates intelligent components to sense and analyze critical parameters (temperature, mechanical characteristics). Digital capabilities enable automated data collection and informed decision-making, cutting costs. Upgraded interlocking, arc resistance, and seismic performance ensure simpler, safer operation.
Core Advantages & Features
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End-to-End Digital SolutionsBased on an IoT architecture, these solutions integrate digital products for complete applications in digital substations and smart power consumption scenarios.
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Real-Time Power MonitoringProvides continuous monitoring and control of power sources, equipment, and loads to ensure system safety.
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Digital Maintenance SystemOffers digital equipment labels, fault diagnostics, predictive maintenance, and expert remote guidance to enhance operational efficiency.
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Energy Management IntegrationPerforms multi-energy monitoring and coordination to support energy savings, carbon reduction, and low-carbon objectives.
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Technical Parameters
| Basic Parameters | |
|---|---|
| Rated Voltage | 40.5 kV |
| Rated Frequency | 50 Hz |
| Rated Current | 630 A / 1250 A / 1600 A / 2000 A / 2500 A / 3150 A |
| Rated Power Frequency Withstand Voltage | 98/120 kV (isolation gap) |
| Rated Lightning Impulse Withstand Voltage | 186/220 kV (isolation gap) |
| Mechanical Life | 1000 times |
Rated Short-circuit Breaking Current | 25/31.5/40 kA |
| Main Circuit Rated Short-time Withstand Current (4s) | 25/31.5/40 kA |
| Main Circuit Rated Peak Withstand Current | 63/80/100 kA |
| Internal Arc Classification | AFLR, 25 kA / 31.5 kA / 40 kA,1s |
| Rated Working Pressure (20°C gauge) | 0.03 Mpa |
| Minimum Working Pressure (20°C gauge) | 0.02 Mpa |
| Enclosure Protection Class | IP42 |
| Gas Compartment Protection Class | IP67 |
| Annual Gas Leakage Rate | ≤0.01% |
Product Documents
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Product Brochure
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DQC-40.5 Gas Insulated Digital Switchgear
2025-11-25
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The company consistently maintains robust innovative vitality, standing at the forefront of the industry and driving its advancement. Through cutting-edge technologies and products, it achieves goals of energy conservation, environmental protection, quality enhancement, and consumption reduction, continuously contributing to the development of a resource-efficient and environmentally friendly society.
