Basler BE1-67 Instructions Manual

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Basler BE1-67 Instructions Manual Manual pdf 9 page image

9170900990 Rev H BE1-67 General Information iSECTION 1 • GENERAL INFORMATIONTABLE OF CONTENTSSECTION 1 • GENERAL INFORMATION ................................................................................................ 1-1DESCRIPTION....................................................................................................................................... 1-1LIMITED REGION OF OPERATION ..................................................................................................... 1-2Load Current Approaches Fault Current ............................................................................................ 1-3Weak Infeed Condition ....................................................................................................................... 1-3APPLICATION ....................................................................................................................................... 1-4SAMPLE APPLICATION CALCULATIONS........................................................................................... 1-5Pickup................................................................................................................................................. 1-6Analysis of Fault L .............................................................................................................................. 1-7Analysis of Fault M ............................................................................................................................. 1-7Conclusions ........................................................................................................................................ 1-8MODEL AND STYLE NUMBER............................................................................................................. 1-9Style Number Identification Chart ...................................................................................................... 1-9Style Number Example....................................................................................................................... 1-9SPECIFICATIONS ............................................................................................................................... 1-10Current Sensing Input(s) .................................................................................................................. 1-10Current Sensing Burden................................................................................................................... 1-10Time Overcurrent Pickup.................................................................................................................. 1-11Pickup Accuracy............................................................................................................................... 1-11Dropout Ratio ................................................................................................................................... 1-11Time Delay Accuracy ....................................................................................................................... 1-11Instantaneous Overcurrent............................................................................................................... 1-11Voltage Sensing Inputs .................................................................................................................... 1-12Voltage Sensing Burden................................................................................................................... 1-12Directional Unit ................................................................................................................................. 1-12Sensitivity ......................................................................................................................................... 1-13Characteristic Angle ......................................................................................................................... 1-13Limited Range of Operation (Optional) ............................................................................................ 1-13Frequency Range............................................................................................................................. 1-13Power Supply ................................................................................................................................... 1-13Target Indicators .............................................................................................................................. 1-13Output Circuits.................................................................................................................................. 1-14Isolation ............................................................................................................................................ 1-14UL Recognized ................................................................................................................................. 1-14GOST-R............................................................................................................................................ 1-14Surge Withstand Capability .............................................................................................................. 1-14Operating Temperature .................................................................................................................... 1-14Storage Temperature ....................................................................................................................... 1-14Shock................................................................................................................................................ 1-14Vibration ........................................................................................................................................... 1-14FiguresFigure 1-1. Single-Phase Directional Overcurrent..................................................................................... 1-1Figure 1-2. Trip Direction Defined ............................................................................................................. 1-2Figure 1-3. Weak Infeed Phenomenon ..................................................................................................... 1-3Figure 1-4. Limiting the Region of Operation ............................................................................................ 1-4Figure 1-5. Substations Fed from One Source.......................................................................................... 1-5Figure 1-6. Substations Fed from Two Sources........................................................................................ 1-5Figure 1-7. Significant Faults for Breaker A .............................................................................................. 1-6Figure 1-8. Coordination of Time Characteristic Curves ........................................................................... 1-8Figure 1-9. Style Number Identification Chart ........................................................................................... 1-9Figure 1-10. Typical Instantaneous Response Time............................................................................... 1-12Figure 1-11. Characteristic Angle ............................................................................................................ 1-12www . ElectricalPartManuals . com