Basler Electric BE1-51/27R - Manual (Page 5)

9137200999 Rev F iii
Contents
Introduction ................................................................................................................................................. 1
Application ................................................................................................................................................. 1
Backup Protection .................................................................................................................................. 1
Residually Connected ............................................................................................................................ 1
Operating Characteristics at Reduced Voltages .................................................................................... 2
Standard Features ..................................................................................................................................... 4
Time Overcurrent Functions .................................................................................................................. 4
Non-Integrating Timing .......................................................................................................................... 5
Integrating Timing .................................................................................................................................. 5
Built-In Test ............................................................................................................................................ 5
Options ...................................................................................................................................................... 5
Timing .................................................................................................................................................... 5
Sensing Input Type ................................................................................................................................ 5
Sensing Input Range ............................................................................................................................. 5
Power Supply ......................................................................................................................................... 6
Targets ................................................................................................................................................... 6
Outputs .................................................................................................................................................. 6
Instantaneous Outputs ........................................................................................................................... 6
Packaging .............................................................................................................................................. 6
Model and Style Number Description ........................................................................................................ 6
Controls and Indicators .............................................................................................................................. 9
Functional Description ............................................................................................................................. 13
Block Diagram Analysis ........................................................................................................................... 13
Power Supply ....................................................................................................................................... 14
Current Sensing ................................................................................................................................... 14
Tap Select and Tap Cal ....................................................................................................................... 14
Voltage Sensing ................................................................................................................................... 14
Multiplexor ............................................................................................................................................ 14
Analog-To-Digital Converter and Level Detector ................................................................................. 14
Time Trip Comparator and Scaler ....................................................................................................... 14
Voltage Restraint ................................................................................................................................. 15
Microprocessor (Not Shown) ............................................................................................................... 15
Instantaneous Overcurrent (Options 1-1 and 1-2) ............................................................................... 15
Timed and Instantaneous Outputs....................................................................................................... 15
Auxiliary Outputs .................................................................................................................................. 16
Push-to-Energize Pushbuttons ............................................................................................................ 16
Power Supply Status Output (Option 3-6) ........................................................................................... 16
Target Indicators .................................................................................................................................. 16
Installation ................................................................................................................................................. 17
Relay Operating Guidelines and Precautions ......................................................................................... 17
Mounting .................................................................................................................................................. 17
Connections ............................................................................................................................................. 30
Maintenance ............................................................................................................................................ 40
Storage .................................................................................................................................................... 40
Tests and Adjustments ............................................................................................................................. 41
Required Test Equipment ........................................................................................................................ 41
Operational Test ...................................................................................................................................... 41
Preliminary Instructions ....................................................................................................................... 41
Time Overcurrent Pickup Test ............................................................................................................. 45
Timed Output Test ............................................................................................................................... 47
Instantaneous Overcurrent Pickup Test .............................................................................................. 49
Voltage Restraint Test ......................................................................................................................... 50
Adjustments of Controls for Relay Operation .......................................................................................... 51
BE1-51/27R Contents