ArcKiller SV25 DF2 Range ArcKiller SV25 DF2 Range

Overview 1. General Overview 2. Drive Mechanism 3. Cubicle Integration Arc-Killer SV-25 – DF-2+

General Overview Arc-Killer SV-25 provides additional safety by minimizing the effects of an internal

SV-25 Basic Principles Ionisation Ignition Pressure build fault occurrence Metal Short Circuit SV-25 triggered

Drive Mechanism [1] Energy required for operation stored in compression spring Stored energy is

Drive Mechanism [2] Trigger is not activated: ü Before arcing occurs in electrical unit

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

Integration of Arc-Killer SV-25 Expansion volume Supplementary Earthing knife Drive mechanism SV-25 Trigger signal

Safety at all times Cable compartment not accessible. Interlock Earthing Paddle Drive Mechanism SV-25

Safety at all times Cable compartment door freely accessible. (Door removed. ) Interlock Earthing

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

Test & Certificates Tests were carried out in accordance with IEC 62271 -200 SV-25

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

Overview 1. General Overview 2. Drive Mechanism 3. Cubicle Integration Arc-Killer SV-25 – DF-2+ Range

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

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

Overview 1. General Overview 2. Drive Mechanism 3. Cubicle Integration Arc-Killer SV-25 – DF-2+ Range

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

Drive Mechanism [2] Trigger is not activated: ü Before arcing occurs in electrical unit ü 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: ü Trigger signal is forwarded ü Stored energy is released ü Additional earthing knife action prevented Arc-Killer SV-25 – DF-2+ Range

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

Overview 1. General Overview 2. Drive Mechanism 3. Cubicle Integration Arc-Killer SV-25 – DF-2+ Range

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

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

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

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

Test & Certificates Tests were carried out in accordance with IEC 62271 -200 SV-25 meets the requirements: ü IAC AFL 20 k. A ü IAC BFLR 4. 8 k. A 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