The Standard Current Vacuum Interrupter is a core component of a high-voltage power switch. It can use its insulating properties in a vacuum to cut off arcs and quickly suppress current. Its main function is to ensure that in the power system, when the circuit needs to be disconnected, the current can be quickly and reliably cut off to protect the safety of equipment and personnel.
Notes
1. Check the status of the equipment regularly to ensure that the casing and contacts are not damaged.
2. Avoid overload operation and ensure that the equipment works within the rated current range.
3. Keep the environment dry to avoid moisture affecting the insulation performance.
4. Clean the exterior regularly to prevent pollutants from affecting normal operation.
5. Ensure correct installation and follow the installation specifications to avoid malfunctions.
6.Perform electrical tests regularly to confirm that the equipment performance is stable.
Why Choose Standard Current Vacuum Interrupter?
1. Rated voltage and current: Make sure the interrupter meets the electrical parameters of the system.
2. Interrupting capacity: Choose an interrupter that can handle the expected fault current.
3. Environmental adaptability: Consider environmental factors such as temperature, humidity, and pollution level.
4. Operating frequency: Choose a suitable product based on the system's interrupting frequency.
5. Installation requirements: Consider equipment size, weight, and ease of installation.
6. Maintenance requirements: Choose an interrupter with low maintenance and long life.
7. Environmental protection: Ensure compliance with environmental standards and no harmful gas emissions.
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Technical Parameters
| MAIN TECHNICAL DATA | ||
| Data | Unit | Value |
| Rated Frequency | Hz | 50 |
| Rated Voltage | kV | 12 |
| Rated Short-duration Withstand Voltage(1min) | kV | 48/28in air |
| Rated Lightning Impulse Withstand Voltage | kV | 85/60in air |
| Rated Current | A | 1250 |
| Circuit Resistance at the Lowest Rated Contact Force | μΩ | ≤18 |
| Rated Short-circuit Breaking Current | kA | 31.5 |
| Rated Short-circuit Breaking Current Breaking Times | Times | 30 |
| Rated Short-duration Withstand Current | kA | 31.5 |
| Rated Duration of Short-circuit | s | 4 |
| Rated Peak Withstand Current | kA | 80 |
| Rated Short-circuit Making Current | kA | 80 |
| Rated Operaing Sequence | O-0.3(0.5)s-CO-180s-CO | |
| Contact Stroke | mm | 8±1 |
| Contact Closing Force | N | 125±30 |
| Force Required to hold contacts open at full stroke | N | 180±40 |
| Average Opening Speed (first 75% stroke) | m/s | 1.2±0.2 |
| Average Closing Speed (last 30% stroke) | m/s | 1.0±0.2 |
| Rated Contact Force | N | 3000±100 |
| Contact Force at the Touch Point | N | 2200±100 |
| Contact Closing Bouncing Duration | ms | ≤2 |
| Contact Opening and Closing Non-simultaneity | ms | ≤2 |
| Contact Opening Rebound Amplitude | mm | ≤3 |
| Storage Life | Years | 20 |
| Mechanical Endurance | Times | 10000 |
| Contact Erosion Limit | mm | 3 |
