DQV-40.5 Indoor Smart High-Voltage Vacuum Circuit BreakerIntelligent Medium-Voltage Breakers
DQV-40.5 indoor high-voltage vacuum circuit breaker (leading series) meets GB/T1984, DL/T403, IEC62271-100 standards for global stability. Widely used in power plants, power systems, metallurgy, petrochemicals, environmental protection, rail transit, etc. It adopts specialized embedding technology to cast vacuum interrupters and ultra-low resistance conductive components in epoxy resin for full solid main circuit insulation. The self-developed spring operating mechanism is robust, durable, with complete mechanical and electrical interlocks.
-
Special embedding technology casts vacuum interrupters and ultra-low-resistance conductive components in epoxy resin for solid main circuit insulation. The self-developed new spring operating mechanism features simple structure, reliable operation, long service life, and complete mechanical & electrical interlocks.
Core Advantages & Features
-
Serial CompatibilityHigh degree of serialization, ensuring compatibility with mainstream industry products.
01 -
Efficient Spring MechanismWell-established spring operating mechanism: simple structure, high efficiency, low loss, and low noise.
02 -
Modular Reliable ConnectionModular circuit board for easy replacement; self-locking plug connectors guarantee reliable electrical connections.
03 -
Solid-Sealed InsulationMain circuit employs solid-sealed pole columns for solid insulation.
04 -
Smart Monitoring OptionOptional intelligent component with an online monitoring expert diagnostic system.
05
Technical Parameters
| Basic Parameters | |
|---|---|
| Rated voltage | 40.5 kV |
| Rated frequency | 50/60 Hz |
| Phase spacing | 280 mm, 300 mm, 400 mm |
| Cubicle dimensions | 1200 mm, 1400 mm, 1680 mm |
| Rated current | 630 A, 1250 A, 1600 A, 2000 A, 2500 A, 3150 A, 4000 A |
| Rated short-circuit breaking current (effective value) | 25 kA, 31.5 kA |
| Rated short-circuit making current (peak) | 63 kA, 80 kA |
| Rated power frequency withstand voltage | 95 kV |
| Rated lightning impulse withstand voltage | 185 kV |
Rated short-circuit current breaking operations | 30 times |
| Mechanical life | 10000 times |
Product Documents
-
Product Brochure
-
DQV Series
2025-09-02
Download PDF
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.
