@Engineering-in-tamil
#VCB
#Breaker
Vacuum Integrity Tests
The purpose of a vacuum integrity test is to confirm that the pressure in a vacuum interrupter is low enough for the interrupter to reliably perform its switching and insulating functions.
Unfortunately, measuring the pressure inside a vacuum interrupter directly is a very difficult task, which requires specialized equipment and even then, measurements can only be performed accurately on a vacuum interrupter by itself, not when it is installed in a circuit breaker. The use of a voltage withstand test to verify that the vacuum pressure is still within acceptable limits is, therefore, recommended.
20 авг 2022
