12kV Vacuum Circuit Breaker Potential Transformer (PT) Handcart for High Voltage Central Switch Cabinet
The 12kV Potential Transformer (PT) Handcart is a specialized withdrawable device engineered for high-voltage power systems. Designed to facilitate the testing of voltage transformers and the seamless replacement of fuses, this handcart simplifies complex maintenance operations. By placing the PT on a mobile trolley platform, it significantly improves work efficiency and ensures maximum operator safety within central switchgear environments. It features high-quality insulated columns and a robust frame designed for long-term reliability in medium-voltage distribution networks.
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 |
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