Product Overview：
A common method for evaluating whether the vacuum degree of a vacuum interrupter has deteriorated is the power frequency withstand voltage test. However, this method can only identify arc-extinguishing chambers with severely degraded vacuum levels. When the vacuum deteriorates to a range of 10⁻² to 10⁻¹ Pa, the breakdown voltage may remain unchanged, even though the arc-extinguishing chamber is already unqualified.
The Vacuum Switch Vacuum Tester addresses this limitation by employing a newly designed excitation coil and utilizing the magnetron discharge method to measure the vacuum level of the arc-extinguishing chamber—without the need for disassembly. With microcomputer-based synchronous control and advanced data acquisition and processing, the instrument achieves a field testing sensitivity of up to 10⁻⁵ Pa.
The most outstanding feature of this instrument is its ability to perform accurate vacuum measurement using a novel excitation coil and intelligent data processing, eliminating the need to dismantle the vacuum switch.
Widely used in industries such as electric power, steel, petrochemical, textile, coal, and railway—wherever vacuum switches are applied—the Vacuum Switch Vacuum Tester is a practical and reliable solution for on-site vacuum assessment.
Product Characteristics：
1、Capable of quantitatively measuring the vacuum level in various types of vacuum switch arc-extinguishing chambers.
2、No need to disassemble the vacuum switch during on-site testing.
3、Provides accurate and reliable test results.
4、Features a more user-friendly and convenient operation process.
5、Allows users to save, print, and review test data.
6、Widely used in industries such as electric power, steel, petrochemical, textile, coal, and railways where vacuum switches are commonly applied.
7、The Vacuum Switch Vacuum Tester is lightweight and easy to carry.
Technical Parameters：
| Test object | Various types of vacuum switch tubes |
| Test method | Non-disassembly measurement of vacuum tubes using a new excitation coil |
| Scope of application | This instrument is a multi-purpose machine, which can measure various types of vacuum switches. |
| Measuring range | 10-5～10-1 Pa |
| measurement accuracy | 10-5～10-4 Pa，10% |
| 10-4～10-3 Pa，10% | |
| 10-3～10-2 Pa，10% | |
| 10-2～10-1 Pa，10% | |
| Magnetic field voltage | 1700V |
| Pulsed electric field high voltage | 30kV |
| Switch tube opening distance when testing vacuum | Normal use of open distance |
| Use environment | -20℃~40℃ |
| Host weight | 24kg |
| Dimensions | 410×320×370mm3 |
| Sampler | Magnetron coil |
