Sf6 circuit breaker diagram

Here is a general diagram of an SF6 (Sulfur Hexafluoride) circuit breaker:

          +---------------+
          |  Busbar      |
          |  (Primary     |
          |   Circuit)    |
          +---------------+
                  |
                  |
                  v
          +---------------+
          |  Circuit      |
          |  Breaker      |
          |  (SF6)       |
          +---------------+
                  |
                  |
                  v
          +---------------+
          |  Arc Extinction|
          |  Chamber      |
          +---------------+
                  |
                  |
                  v
          +---------------+
          |  Cooling      |
          |  System      |
          +---------------+
                  |
                  |
                  v
          +---------------+
          |  Operating    |
          |  Mechanism    |
          +---------------+
                  |
                  |
                  v
          +---------------+
          |  Control      |
          |  Panel      |
          +---------------+

Here's a brief description of each component:

  1. Busbar: The primary circuit that carries the electrical current.
  2. Circuit Breaker (SF6): The SF6-filled chamber that contains the arc extinction mechanism.
  3. Arc Extinction Chamber: The area where the arc is extinguished when the breaker is operated.
  4. Cooling System: A system that cools the breaker to prevent overheating.
  5. Operating Mechanism: The mechanism that operates the breaker, such as a spring-loaded mechanism or a hydraulic system.
  6. Control Panel: The panel that controls the breaker's operation, including the trip and close functions.

The SF6 circuit breaker works as follows:

  1. When a fault occurs in the primary circuit, the breaker's operating mechanism is triggered.
  2. The operating mechanism opens the breaker, creating an arc between the contacts.
  3. The arc is extinguished in the arc extinction chamber, which is filled with SF6 gas.
  4. The SF6 gas helps to cool the arc and prevent re-ignition.
  5. The breaker remains open until the fault is cleared and the primary circuit is restored to a safe condition.

Note that this is a simplified diagram, and actual SF6 circuit breakers may have additional components or variations on this design.