Circuit diagram of sf6 circuit breaker

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

          +---------------+
          |  Live Tank  |
          |  (LT)        |
          +---------------+
                  |
                  |  (SF6 Gas)
                  |
                  v
          +---------------+
          |  Arc Chute    |
          |  (AC)        |
          +---------------+
                  |
                  |  (Arc Quenching)
                  |
                  v
          +---------------+
          |  Trigger      |
          |  (TR)        |
          +---------------+
                  |
                  |  (Trip Coil)
                  |
                  v
          +---------------+
          |  Control     |
          |  (C)        |
          +---------------+
                  |
                  |  (Signal)
                  |
                  v
          +---------------+
          |  Operator    |
          |  (OP)        |
          +---------------+

Here's a brief explanation of each component:

Live Tank (LT): The live tank is the main enclosure that houses the SF6 gas and the electrical contacts. It is typically a cylindrical or rectangular shape and is designed to withstand the high voltage and electrical stresses within the circuit breaker.
Arc Chute (AC): The arc chute is a metal plate or chamber that is designed to quench the arc that forms when the circuit breaker is operated. The arc chute is filled with SF6 gas, which helps to extinguish the arc and prevent re-ignition.
Trigger (TR): The trigger is a mechanical or electrical device that is used to initiate the operation of the circuit breaker. It is typically a spring-loaded mechanism that is triggered by a fault current or a manual operation.
Trip Coil (TC): The trip coil is an electrical device that is used to trip the circuit breaker when a fault current is detected. It is typically a solenoid or a relay that is connected to the trigger mechanism.
Control (C): The control is the electronic or electrical system that monitors the circuit breaker's operation and provides the necessary signals to the trigger and trip coil. It may include sensors, relays, and other components to detect faults and initiate the operation of the circuit breaker.
Operator (OP): The operator is the person who manually operates the circuit breaker. It may include a manual switch or a remote control system that allows the operator to trip the circuit breaker from a distance.

The circuit breaker's operation can be summarized as follows:

When a fault current is detected, the trigger is activated, which in turn activates the trip coil.
The trip coil sends a signal to the control, which then sends a signal to the operator to trip the circuit breaker.
The operator trips the circuit breaker, which causes the contacts to open and the arc to form.
The arc chute quenches the arc, and the SF6 gas helps to extinguish the arc and prevent re-ignition.
The circuit breaker remains open until the fault is cleared, at which point it can be closed again to restore power to the circuit.

Note that this is a simplified diagram, and actual circuit breaker designs may vary depending on the manufacturer and the specific application.

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Circuit diagram of sf6 circuit breaker