Basler Electric BE1-51/27R User Manual
Page 6
iv
9137200999 Rev F
TAP and TAP (NEUTRAL) Selector Setting ........................................................................................ 51
Time Overcurrent Curve Selection (Timing Type Z1, Z2, and Z3 Only) .............................................. 52
Time Delay Selection ........................................................................................................................... 53
Neutral Time Delay Selection .............................................................................................................. 53
INST 1 Control Setting ......................................................................................................................... 54
INST 2 Control Setting ......................................................................................................................... 55
Setting the Relay ..................................................................................................................................... 55
General ................................................................................................................................................ 55
Relay Setting Concepts ....................................................................................................................... 55
Setting Example ................................................................................................................................... 57
Coordination with Feeder 51 Relay for Fault 1 .................................................................................... 58
Checking Coordination with Relay 67 for Fault 2 ................................................................................ 59
Checking Coordination with Relay 67 for Fault 3 ................................................................................ 60
Neutral Element Backup Settings ........................................................................................................ 61
Operational Specifications ....................................................................................................................... 63
Time Overcurrent Pickup Selection Range ......................................................................................... 63
Time Overcurrent Pickup Accuracy ..................................................................................................... 63
Time Overcurrent Dropout Ratio .......................................................................................................... 63
Instantaneous Overcurrent Pickup Range ........................................................................................... 63
Instantaneous Overcurrent Measuring Accuracy ................................................................................ 63
Instantaneous Overcurrent Dropout Ratio ........................................................................................... 63
Instantaneous Response ..................................................................................................................... 63
Time Delay Accuracy ........................................................................................................................... 64
General Specifications............................................................................................................................. 64
Voltage Sensing Inputs ........................................................................................................................ 64
Sensing Input Burden .......................................................................................................................... 64
Sensing Input Rating ........................................................................................................................... 64
Output Circuits ..................................................................................................................................... 64
Target Indicators .................................................................................................................................. 65
Power Supply ....................................................................................................................................... 65
Radio Frequency Interference (RFI) .................................................................................................... 65
Isolation ................................................................................................................................................ 65
Surge Withstand Capability ................................................................................................................. 65
UL Recognized .................................................................................................................................... 65
GOST-R ............................................................................................................................................... 65
Operating Temperature ....................................................................................................................... 65
Storage Temperature ........................................................................................................................... 66
Shock ................................................................................................................................................... 66
Vibration ............................................................................................................................................... 66
Weight .................................................................................................................................................. 66
Case Size ............................................................................................................................................. 66
Contents
BE1-51/27R