The HighTest VABO-80 80 kV Vacuum Bottle Tester is a high-performance diagnostic instrument designed for accurate testing of vacuum interrupters in circuit breakers. Engineered with advanced technology, it applies DC test voltage up to 80 kV to evaluate leakage current and ensure the integrity of vacuum bottles, helping prevent failures in medium and high-voltage power systems.
This robust and portable tester offers fast, reliable, and automated testing, making it ideal for field engineers, maintenance teams, and utility professionals. With adjustable test voltage from 10 kV to 80 kV in 1 kV steps, users can perform precise insulation integrity testing tailored to different breaker specifications.
The VABO-80 features a 4.3-inch TFT colour touchscreen, ensuring clear visibility in both bright and low-light environments. It includes a built-in thermal printer for instant test reports, along with internal memory and USB storage for efficient data management. Integration with HighTest’s DMP software allows seamless analysis and reporting on a PC.
Why Do We Need to Test a Vacuum Bottle Interrupter?
Testing a vacuum bottle interrupter is essential to ensure the safe and reliable operation of electrical power systems. Circuit breakers play a critical role in protecting equipment and personnel by interrupting fault currents quickly and effectively. If a breaker fails to operate at the correct moment, it can lead to serious hazards, equipment damage, and costly downtime.
Over time, even highly reliable circuit breakers can be affected by dust, moisture, and external contaminants that accumulate on the poles and the surface of the vacuum interrupter. These conditions may compromise insulation performance and reduce operational reliability.
More critically, if air leaks into the vacuum bottle, the interrupter loses its dielectric strength, making it unable to safely interrupt electrical faults. This condition can lead to flashovers, failures, and unsafe system operation.
For these reasons, regular testing using a vacuum integrity tester or vacuum bottle tester is necessary to:
- Verify the vacuum condition inside the interrupter
- Detect leakage or loss of vacuum
- Ensure reliable fault interruption
- Maintain safety and compliance in electrical systems
Routine testing and maintenance of vacuum interrupters help prevent unexpected failures, improve system reliability, and extend the lifespan of circuit breakers in industrial and utility applications.
