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

Arc-Killer SV-25 - DF-2 + Range. Overview. General Overview Drive Mechanism Cubicle Integration. Overview. General Overview Drive Mechanism Cubicle Integration. General Overview. Arc-Killer SV-25 provides additional safety by minimizing the effects of an internal arc.

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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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