1. Operation – The process of moving a movable contact from one position to another, typically involving mechanical or electrical switching actions. 2. Split (Gate) Operation – The action of moving a switch from the engaged state to the disconnected or open position, often used in circuit control systems. 3. Close (Gate) Operation – The action of moving a switch from the open position to the connected or closed position, allowing current to flow through the circuit. 4. “Score†Operation – A type of operation performed immediately after closing the switch, without any intentional delay, usually for testing or verification purposes. 5. Operation Cycle – A complete sequence of operations that starts at one position, moves to another, and returns to the original position. If multiple positions are involved, all intermediate steps must be included. 6. Sequence of Operations – A defined series of actions with specific timing and order, commonly used in automated or controlled systems. 7. Automatic Reclosing (Gate) Operation – A sequence of operations that automatically reconnects the switch after a set time, often used in power distribution systems to restore service after a fault. 8. Close (On) – A combination of operations that establishes an energized condition in the circuit, such as connecting a power source to a load. 9. Break (Break) – A sub-operation used to interrupt the circuit when power is still present, typically part of a larger switching process. 10. Automatic Reclosing – An automatic process that re-closes a switch after a fault has been cleared, restoring power without manual intervention. 11. Opening and Closing – A general term referring to both breaking and making of an electrical connection, essential in circuit control. 12. Short-Circuit Breaking – The act of interrupting a short-circuit current, which can be extremely high and requires specialized equipment for safe handling. 13. Short-Circuit Closing – The process of connecting a circuit during a short-circuit condition, often used in testing or simulation scenarios. 14. Near-Zone Fault Interrupt – The interruption of a short-circuit current that occurs close to the point of installation, requiring fast response times. 15. Contact Opening Distance – The total gap between the moving and fixed contacts of a switch when it is in the open position, indicating the physical separation needed for insulation. 16. Stroke – The distance the moving contact travels from its initial position to the fully closed position of the switch. 17. Overtravel – The additional movement of the moving contact beyond the point of contact closure during the closing operation, ensuring proper contact pressure and reliability. 18. Opening Speed – The speed at which the moving contact separates from the fixed contact during the opening process, affecting the performance and safety of the switch. 19. Contact Separation Speed – The rate at which the moving and fixed contacts move apart during the opening process, influencing the arc extinction capability. 20. Closing Speed – The speed at which the moving contact moves toward the fixed contact during the closing operation, crucial for reliable and quick connection. 21. Contact Speed – The instantaneous speed of the moving contact as it makes contact with the fixed contact during the closing process, important for minimizing arcing. 22. Breaking Speed – The speed at which the moving contact moves away from the fixed contact during the opening process, directly affecting the ability to interrupt current. 23. Closing Speed – The speed at which the contacts move during the closing process, ensuring a secure and stable connection. Benchtop Sphere Spectrophotometers Laboratory desktop spectrophotometer,High precision desktop spectrophotometer,Fluorescent color desktop spectrophotometer CHNSpec Technology (Zhejiang)Co.,Ltd , https://www.chnspec360.com