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Arc-Killer SV-25 - DF-2 + Range

The Arc-Killer SV-25 is a safety device that minimizes the effects of internal arcs, reducing energy release and architectural demands. This reusable unit provides additional safety and is integrated into electrical cubicles. Learn more about its general overview, drive mechanism, and cubicle integration.

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Arc-Killer SV-25 - DF-2 + Range

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  1. Arc-Killer SV-25 - DF-2+Range Arc-Killer SV-25 – DF-2+ Range

  2. Overview • General Overview • Drive Mechanism • Cubicle Integration Arc-Killer SV-25 – DF-2+ Range

  3. Overview • General Overview • Drive Mechanism • Cubicle Integration Arc-Killer SV-25 – DF-2+ Range

  4. General Overview • Arc-Killer SV-25 provides additional safety by minimizing the effects of an internal arc. • Less energy released • Fewer architectural/structural demands • Unit is reusable after an arc Arc-Killer SV-25 – DF-2+ Range

  5. SV-25 Basic Principles Ionisation Ignition Pressure build fault occurrence Metal Short Circuit SV-25 triggered Arc extinguished 0 18 48 ms Arc-Killer SV-25 – DF-2+ Range

  6. Overview • General Overview • Drive Mechanism • Cubicle Integration Arc-Killer SV-25 – DF-2+ Range

  7. Drive Mechanism [1] • Energy required for operation stored in compression spring • Stored energy is blocked until the system receives a trigger signal Arc-Killer SV-25 – DF-2+ Range

  8. Drive Mechanism [2] • Trigger is not activated: • Before arcing occurs in electrical unit • As a result of environmental vibrations • RP 427-04: Test to demonstrate that arc-killers inside both units will not operate during short-time current and peak withstand current test • When an electrical fault occurs: • Trigger signal is forwarded • Stored energy is released • Additional earthing knife action prevented Arc-Killer SV-25 – DF-2+ Range

  9. Drive Mechanism [3] • Front View Rear View Tension springs Tension springs Arc-Killer SV-25 – DF-2+ Range

  10. Overview • General Overview • Drive Mechanism • CubicleIntegration Arc-Killer SV-25 – DF-2+ Range

  11. Integration of Arc-Killer SV-25 Expansion volume Supplementary Earthing knife Earthing knife Drive mechanism SV-25 Trigger signal Arc-Killer SV-25 – DF-2+ Range

  12. Safety at all times • Cable compartment not accessible. Interlock Earthing Paddle Drive Mechanism SV-25 Released Arc-Killer SV-25 – DF-2+ Range

  13. Safety at all times • Cable compartment door freely accessible. (Door removed.) Interlock Earthing Paddle Drive Mechanism SV-25 Locked Arc-Killer SV-25 – DF-2+ Range

  14. Safety at all times Arc-Killer SV-25 – DF-2+ Range

  15. Safety at all times Arc-Killer SV-25 – DF-2+ Range

  16. Test & Certificates • Tests were carried out in accordance with IEC 62271-200 • SV-25 meets the requirements: • IAC AFL 20kA • IAC BFLR 4.8kA • The Arc-Killer is activated quick enough to reduce all harmful effects of an internal arc. • As a result, the consequences are negligible. Arc-Killer SV-25 – DF-2+ Range

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