| Customization: | Available |
|---|---|
| Transport Package: | Fumigation Wooden Box |
| Trademark: | YQALT |
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VBI Series Indoor Vacuum Circuit Breaker
Product Overview:
The VBI indoor high voltage vacuum circuit breaker is designed for three-phase AC 50/60Hz power systems with a rated voltage of 12kV and 24kV. This circuit breaker is ideal for control and protection applications in industrial and mining enterprises, power plants, substations, and other electrical facilities. It is especially suitable for environments that require frequent operation. The VBI breaker adopts a spring operating mechanism integrated with the circuit breaker design, offering the flexibility to be used as a fixed installation unit or as part of a handcart unit when equipped with a special mechanism. Some primary circuits use a fully solid-sealed post, achieving a compact, highly reliable, and maintenance-free design. The VBI breaker can be used with KYN28A and other handcart switch cabinets, as well as with fixed XGN switchgear.
Application Environment:
The VBI indoor high voltage vacuum circuit breaker is well-suited for use in:
• Industrial and Mining Enterprises: Provides reliable protection and control for electrical systems in harsh environments.
• Power Plants: Ensures the safe and efficient operation of electrical facilities in power generation.
• Substations: Integral for the control and protection of power distribution in substations.
• Frequent Operation Locations: Ideal for areas that require frequent switching operations due to its durable and maintenance-free design.
Operating Conditions:
1. Voltage Range: Designed for systems with operational voltages of 12kV and 24kV.
2. Frequency: Suitable for both 50Hz and 60Hz power systems.
3. Installation: Can be installed as a fixed unit or as part of a handcart unit depending on the application requirements.
4. Compatibility: Can be used with KYN28A handcart switch cabinets or integrated into fixed XGN switchgear.
Usage Considerations:
1. Integrated Design: The VBI breaker's integrated spring operating mechanism simplifies installation and maintenance, offering a compact solution for high-voltage applications.
2. Maintenance-Free Operation: The solid-sealed post design in some main circuits reduces the need for regular maintenance, enhancing reliability.
3. High Reliability: The breaker's design ensures long-term reliable performance even in environments with frequent operational demands.
4. Versatility: The VBI breaker can be adapted to various installation types, making it a versatile choice for different power system configurations.
Key Features:
• Compact Design: Achieved through the use of solid-sealed posts, making it suitable for installations with limited space.
• High Reliability and Safety: Offers dependable performance with minimal maintenance requirements.
• Flexible Installation: Can be used in both fixed and handcart configurations, providing adaptability to different switchgear systems.
• Standards Compliance: Complies with relevant standards for high-voltage circuit breakers, ensuring safe and effective operation in a variety of settings.
This description highlights the VBI indoor high voltage vacuum circuit breaker's key features and advantages, making it a robust and flexible solution for medium-voltage power systems in industrial and utility settings.
| Technical Specification | ||||||
| Rated voltage | kV | 12 | 24 | |||
| Rated Short circuit breaking capacity 4sec. | kA | 20/25 | 31.5 | 40 | 20/25 | 31.5 |
| Rated Current | A | 630 1250 | 630 125 1600 2000 2500 3150 4000 | 1250 1600 2000 2500 3150 4000 | 630 1250 | 1250 1600 2000 2500 3150 4000 |
| Rated power frequency | Hz | 50/60 | ||||
| Power frequency withstand voltage 50Hz1 min,: | kV | 45 | 65 | |||
| Impulse withstand voltage 1.2/50μs: | kV | 75 | 125 | |||
| Peak withstand current | kA Peak. | 63 | 80 | 100 | 50/63 | 80 |
| Making Capacity | kA | 63 | 80 | 100 | 50/63 | 80 |
| Operation sequence | times/h | 0-0.3s-C0-180s-C0 | ||||
| Mechanism Endurance | cycles | 10000 | ||||
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