9400200990 Rev K
DGC-2020 Time Overcurrent Characteristic Curves
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APPENDIX A
TIME OVERCURRENT
CHARACTERISTIC CURVES
TABLE OF CONTENTS
APPENDIX A
TIME OVERCURRENT CHARACTERISTIC CURVES...................................................A-1
INTRODUCTION ................................................................................................................................... A-1
CURVE SPECIFICATIONS ................................................................................................................... A-1
TIME OVERCURRENT CHARACTERISTIC CURVE GRAPHS........................................................... A-2
Time Dial Setting Cross-Reference.................................................................................................... A-3
Figures
Figure A-1. Time Characteristic Curve S, S1, Short Inverse (Similar to ABB CO-2) ................................ A-5
Figure A-2. Time Characteristic Curve S2, Short Inverse (Similar To GE IAC-55)................................... A-6
Figure A-3. Time Characteristic Curve L, L1, Long Inverse (Similar to ABB CO-5) ................................. A-7
Figure A-4. Time Characteristic Curve L2, Long Inverse (Similar To GE IAC-66).................................... A-8
Figure A-5. Time Characteristic Curve D, Definite Time (Similar To ABB CO-6) ..................................... A-9
Figure A-6. Time Characteristic Curve M, Moderately Inverse (Similar to ABB CO-7)...........................A-10
Figure A-7. Time Characteristic Curve I, I1, Inverse Time (Similar to ABB CO-8) .................................A-11
Figure A-8. Time Characteristic Curve I2, Inverse Time (Similar to GE IAC-51) ....................................A-12
Figure A-9. Time Characteristic Curve V, V1, Very Inverse (Similar to ABB CO-9) ...............................A-13
Figure A-10. Time Characteristic Curve V2, Very Inverse (Similar to GE IAC-53) .................................A-14
Figure A-11. Time Characteristic Curve E, E1, Extremely Inverse (Similar to ABB CO-11)...................A-15
Figure A-12. Time Characteristic Curve E2, Extremely Inverse (Similar to GE IAC-77) ........................A-16
Figure A-13. Time Characteristic Curve A, Standard Inverse .................................................................A-17
Figure A-14. Time Characteristic Curve B, Very Inverse ........................................................................A-18
Figure A-15. Time Characteristic Curve C, Extremely Inverse ...............................................................A-19
Figure A-16. Time Characteristic Curve G, Long Time Inverse ..............................................................A-20
Tables
Table A-1. 51 Time Characteristic Curve Constants................................................................................. A-2
Table A-2. Characteristic Curve Cross-Reference.................................................................................... A-3
Table A-3 .Time Dial Setting Cross-Reference ......................................................................................... A-4