DQV-40.5C Indoor Capacitor-Bank Switching High-Voltage Vacuum Circuit BreakerIntelligent Medium-Voltage Breakers
The DQV-40.5C circuit breaker is designed for switching capacitor banks, developed to leading international standards and compliant with GB/T1984, DL/T403, and IEC62271-100.
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It finds application in global power plants, power systems, and various industrial sectors. Special embedding techniques ensure solid insulation of the main circuit. The proprietary spring operating mechanism is reliable and long-lasting.
Core Advantages & Features
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Multi-Break Anti-ReignitionMulti-break series technology prevents reignition when switching capacitor banks.
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Efficient Spring MechanismMature spring operating mechanism with a simple structure, high transmission efficiency, low energy loss, and low noise.
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Modular Reliable ConnectionModular circuit board for easy replacement, self-locking connectors ensure high connection reliability.
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630A/800A Breaking CapacityC2 grade, breaking current of 630A for back-to-back capacitor banks and 800A for a single bank.
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Universal CompatibilityHighly interchangeable with existing similar products and compatible with switchgear like KYN61.
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SF₆-Free Eco-FriendlyAn environmentally friendly alternative to SF₆ circuit breakers.
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Technical Parameters
| Basic Parameters | |
|---|---|
| Rated voltage | 40.5 kV |
| Phase spacing | 300 mm, 440 mm |
| Cubicle dimensions | 1400 mm, 1680 mm |
| Rated current | 630 A, 1250 A, 1600 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 |
| Back-to-back capacitor bank breaking current | 630 A |
| Single capacitor bank breaking current | 800 A |
Product Documents
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Product Brochure
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DQV-40.5C Series Indoor High-Voltage Vacuum Circuit Breaker
2025-09-02
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