Basler Electric BE1-87T - Manual (Page 33)

9171300990 Rev V BE1-87T Functional Description i
SECTION 3 • FUNCTIONAL DESCRIPTION
TABLE OF CONTENTS
SECTION 3 • FUNCTIONAL DESCRIPTION ........................................................................................... 3-1
General .................................................................................................................................................. 3-1
Description ............................................................................................................................................. 3-1
Current Transformers ......................................................................................................................... 3-1
Scaling ................................................................................................................................................ 3-1
Summing ............................................................................................................................................ 3-1
30° Internal Phase Shift (Three-Phase Relays ONLY) ...................................................................... 3-1
Restrained Trip Output ....................................................................................................................... 3-3
Unrestrained Trip Output .................................................................................................................... 3-3
Auxiliary Relay Option ........................................................................................................................ 3-4
Power Supply ..................................................................................................................................... 3-4
Power Supply Status Output (Optional) ............................................................................................. 3-4
Target Indicators (Optional)................................................................................................................ 3-4
% of Trip ............................................................................................................................................. 3-5
Figures
Figure 3-1. Functional Block Diagram ....................................................................................................... 3-2
Figure 3-2. Functional Block Diagram, Phase B and Phase C ................................................................. 3-2