VABO-80 is designed using advanced engineering technology to test circuit-breaker vacuum bottles up to 80 kV DC. VABO-80 has fast, easy and accurate measurement features with its user-friendly software. VABO-80 is a battery-powered device (optional feature), which allows users to perform tests even without power supply during field tests.
The user can select the test voltages from 10kV to 80kV DC with step voltages of 1kV and the test time can be defined by the user from 5 seconds to 2 minutes. The leakage current preset values of VABO-80 are 100 µA, 200 µA and 300 µA. After setting the output voltage and test time with a predefined cutoff for leakage current, the test can be performed. After the execution of the test, if the leakage current doesn’t exceed the preset leakage current value, then the screen will show “TEST PASSED”. In the case, if the leakage current exceeds the preset value, then the voltage will be immediately turned off and shows “TEST FAILED” on the screen. In the case of HV presence, the HV indicator on the device illuminates with an audible tone.
WHY DO WE TEST VACUUM BOTTLE INTERRUPTER?
Fast and reliable protection is the most important in case of any faults occurring in the electric power system. If the circuit breaker does not succeed in clearing the fault at the appropriate moment, the resulting accident can be dangerous in terms of both personnel injury and equipment damage and causing heavy losses.
Even though circuit breakers can be very reliable, they tend to gather dirt, moisture, and contaminants on the poles and on the exterior surface of the interrupter which may cause insecurity during operation, and once the air find its way into the interrupter and leakage starts to appear, the vacuum bottle becomes unreliable.
For the above mentioned reasons and more, vacuum bottle interrupters must be tested and maintained to ensure proper operation during electrical faults. Insulation integrity test is recommended by the manufacturers of circuit breakers and well documented in international test standards as IEC and IEEE.
More Hardware configuration (factory install option)