Vacuum switch vacuum degree tester is a professional equipment used to detect the vacuum degree in the arc extinguishing chamber of vacuum switches, widely used in the fields of power system, electrical equipment maintenance and manufacturing. The following is a detailed introduction to the instrument:
1. Working principle
The core component of a vacuum switch is the vacuum arc extinguishing chamber, and its working principle depends on the insulation performance in a high vacuum environment. However, with the increase of usage time or the influence of environmental factors, the vacuum degree of the arc extinguishing chamber may decrease, leading to a decrease in switch performance or even failure.
The vacuum degree tester measures the vacuum degree inside the arc extinguishing chamber through magnetron discharge method or pulse magnetic field method. The specific principle is as follows:
① Magnetron discharge method: Applying high voltage electric field and pulsed magnetic field in the arc extinguishing chamber to ionize residual gas molecules and generate ion current. The magnitude of ion current is inversely proportional to the vacuum degree, and the vacuum degree can be calculated by measuring the ion current.
② Pulse magnetic field method: By applying a pulse magnetic field outside the arc extinguishing chamber, the residual gas inside is excited to ionize, and the ionization signal intensity is measured to evaluate the vacuum degree.
2. Main functions
① Quantitative measurement of vacuum degree: It can accurately measure the vacuum degree inside the arc extinguishing chamber, usually within the measurement range of 10 ⁻⁵ Pa to 10 ⁻¹ Pa.
② Non destructive testing: Testing can be completed on-site without disassembling the vacuum switch, reducing downtime and maintenance costs.
③ Data storage and analysis: Some instruments have data storage functions, which can record test results and generate reports for subsequent analysis and traceability.
④ Alarm function: When the vacuum degree is below the set threshold, the instrument will issue an alarm, prompting the user to replace or repair the arc extinguishing chamber in a timely manner.
3. Technical features
① High precision: The measurement error is usually less than 5%, which can meet the strict requirements of the power system for equipment reliability.
② Easy to operate: Equipped with a LCD screen and button controls, the interface is user-friendly and easy to pick up.
③ High safety: The instrument has overvoltage and overcurrent protection functions to ensure the safety of operators and equipment.
④ Portability: Compact design, lightweight, easy to carry to the site for testing.
4. Application scenarios
① Power system maintenance: Regularly check the vacuum level of vacuum switches to ensure safe operation of equipment.
② Electrical equipment manufacturing: Quality inspection of vacuum arc extinguishing chambers during the production process.
③ Fault diagnosis: When the vacuum switch is abnormal, quickly locate whether the problem is caused by a decrease in vacuum degree.
④ Preventive maintenance: By conducting regular inspections, the decreasing trend of vacuum degree can be detected in advance to avoid sudden equipment failures.
5. Purchase suggestions
① Measurement range: Select the appropriate measurement range according to actual needs to ensure coverage of the vacuum degree range of the device under test.
② Accuracy requirement: For high demand situations, choose instruments with higher accuracy.
③ Functional requirements: Select the corresponding model based on whether data storage, printing, and other functions are needed.
④ Brand and after-sales service: Choose well-known brands to ensure instrument quality and after-sales service.
The ZC-313 vacuum Interrupter tester abandons the traditional withstand voltage method and uses the magnetic discharge method for measurement, so there is no need to disassemble the arc extinguishing chamber. The use of a single-chip microcomputer for synchronous control and data acquisition processing improves the on-site testing sensitivity of the vacuum degree in the arc extinguishing chamber. This product has a compact structure, a lightweight and compact model, shorter testing time, higher measurement reliability, stability, accuracy, and more complete functions.
Kvtester Electronics Technology Co.,Ltd. is a high-tech enterprise specializing in power testing, testing, research and development, production, and sales of testing equipment. It has been engaged in the electrical testing industry for many years, and its products are of high quality. We welcome customers to come and purchase. Service hotline: 0086-27-81778799, to learn more, visit the official website: www.kvtester.com
