| Customization: | Available |
|---|---|
| Rated Voltage: | 12kv |
| Rated Operating Voltage: | 12kv |
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VS1-550 miniaturized Indoor high voltage trolley type vacuum circuit breaker
Operating Environment
The VS1-550 series indoor high voltage trolley type vacuum circuit breaker (miniaturized) is designed for use in indoor environments, maintaining stable performance across a temperature range of -10ºC to 40ºC. It is suitable for areas with altitudes up to 1000 meters; if deployed at higher altitudes, the rated insulation level should be correspondingly adjusted. The VS1-550 can operate reliably in environments with relative humidity up to 95%, ensuring stability even in humid conditions. Additionally, this breaker is designed to operate safely in regions with earthquake intensities up to level 8. Special attention should be given to avoid using the device in environments with fire, explosion, severe pollution, chemical corrosion, or intense vibration, to ensure optimal performance.
Application Scope
The VS1-550 series miniaturized vacuum circuit breaker finds broad applications in power systems. It is an indispensable device in industrial and mining enterprises, power plants, and substations, particularly suited for electrical facilities requiring frequent operations. Its miniaturized design not only reduces space requirements but also enhances portability, making it ideal for compact electrical installations. The VS1-550 can be utilized as a fixed installation unit or equipped with a dedicated propulsion mechanism to form a trolley unit for more flexible usage. Additionally, this device is compatible with centrally-mounted trolley switchgears such as KYN28A-12(GZS) and can also be applied in XGN series fixed switchgears.
Precautions
When installing and using the VS1-550 series vacuum circuit breaker, ensure that the device operates within the recommended environmental conditions. Avoid using the equipment outside of the specified temperature or humidity ranges, and keep it away from environments that may pose risks of fire, explosion, or chemical corrosion. Follow safety protocols strictly during operation and maintenance to ensure the device's reliability and longevity.
| Technical Specification | ||||
| 1 | Rated voltage | kV | 12 | |
| 2 | Rated insulation level | Rated short-time power frequency withstand voltage (1min) | kV | 42 |
| Rated lightning impulse withstand voltage (peak value) | 75 | |||
| 3 | Rated frequency | Hz | 50 | |
| 4 | Rated current | A | 1250 | |
| 5 | Rated short-circuit breaking current | kA | ≤31.5 | |
| 6 | Rated short circuit withstand current | kA | ≤31.5 | |
| 7 | Rated peak withstand current | kA | ≤80 | |
| 8 | Rated short-circuit making current (peak value) | kA | ≤80 | |
| 9 | Rated phase-to-phase grounding breaking current | kA | 27.4 | |
| 10 | Rated short-circuit current duration | O | 4 | |
| 11 | Rated short-circuit current breaking times | cycles | 30 | |
| 12 | Rated operating sequence | Order of Operations | 0-0.3S-CO-180S-CO | |
| 13 | Mechanism Endurance | cycles | 20000 | |
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