Theory of operation

The  new VacStat™ vacuum loss detection technology is a breakthrough in vacuum switching.

  1. A simple device is attached to the vacuum interrupter during manufacturing.
    This device monitors the interrupter to determine if it has vacuum or not.
  2. If there is vacuum, the light via fiber optics will have a continuous path.
  3. If there is no vacuum, the vacuum condition status indicator will turn to the orange flag to let the operator know there is a problem. The remote status contact will provide a signal to notify the user that there is a problem. Electrical operation of the switch will be blocked.
 
VacStat in normal operation
The signal continuously monitors vacuum condition using a fiber-optic signal.
  VacStat in problem state
The signal is blocked; therefore, electrical operation is blocked.
VacStat vacuum interrupter
VacStat vacuum loss detection technology