12kV Fuse Handcart for 650mm Wide Centre Cabinet Switchgear – Isolation Handcart with Fuse Protection
The 12kV Fuse Handcart is a high-performance isolation unit integrated with a protective fuse, specifically engineered for 650mm wide centre cabinet switchgear. Primarily utilized in PT (Potential Transformer) cabinets, this handcart provides essential short-circuit protection for voltage transformer circuits. It features a streamlined design that allows for direct withdrawal without interlocking when the transformer cabinet current is less than 5A, ensuring efficient and safe maintenance operations.
Product Overview
The VSG-40.5 series is a high-performance indoor vacuum circuit breaker featuring advanced embedded pole technology. It is specifically designed for three-phase AC 50Hz systems with a rated voltage of 40.5kV. This robust VCB serves as an ideal control and protection unit for power plants, substations, and industrial mining enterprises, especially suitable for locations requiring frequent operations.
Technical Features
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Versatile Installation: Supports both fixed type and withdrawable type (installed on a trolley) within switch cabinets.
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Superior Insulation: Embedded poles provide enhanced environmental resistance and reliability.
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Reliable Performance: Engineered for long-term service in high-voltage transmission and distribution systems.
Technical Parameters
| Item | Unit | Data |
| Rated Voltage | kV | 40.5 |
| 1min Power Frequency Withstand Voltage | kV | 95 |
| Lightning Impulse Withstand Voltage | kV | 185 |
| Rated Current | A | 630 / 1250 / 1600 / 2000 / 2500 |
| Rated Short-circuit Breaking Current | kA | 20 / 25 / 31.5 |
| Mechanical Life | Times | 10,000 |
Product Overview
The Model ZN85-40.5 series circuit breaker handcart assembly is a premium component for 40.5kV power distribution users. It is optimized for high-capacity applications with a rated current range of 630A to 2500A and excellent breaking capabilities.
Key Technical Features
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Compact Design: Features a top-and-bottom arrangement of the operating mechanism and main circuit, resulting in a small handcart depth.
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Advanced Protection: Equipped with a screw propulsion mechanism with clutch to protect the operating mechanism from damage.
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Reliable Interlocking: Utilizes the newest “five-protection” switchgear interlocking design for enhanced safety and endurance.
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Maintenance-Free: The cylindrical composite insulation main circuit is free of maintenance and requires minimal service.
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Corrosion Resistance: Components are made of high-quality steel alloy, withstanding 350+ hours of neutral salt spray tests.
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