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SECTION 3 • FUNCTIONAL DESCRIPTION
TABLE OF CONTENTS
SECTION 3 • FUNCTIONAL DESCRIPTION ........................................................................................... 3-1
INTRODUCTION.................................................................................................................................... 3-1
Current Sensing ................................................................................................................................. 3-1
Phase Rotation Sensitivity .................................................................................................................. 3-1
Sensing Input Types ........................................................................................................................... 3-3
kW Transducer ................................................................................................................................... 3-5
Comparator Circuits ........................................................................................................................... 3-5
Pickup ................................................................................................................................................. 3-5
Timing ................................................................................................................................................. 3-6
Outputs ............................................................................................................................................... 3-7
Output Test Pushbuttons .................................................................................................................... 3-7
Power Supply ..................................................................................................................................... 3-7
Target Indicators ................................................................................................................................ 3-7
Figures Figure 3-1. Function Block Diagram .......................................................................................................... 3-1
Figure 3-2. Type E Sensing with ABC Rotation ........................................................................................ 3-2
Figure 3-3. Type E Sensing with ACB Rotation ........................................................................................ 3-2
Figure 3-4. Type B or V Sensing with ABC Rotation ................................................................................. 3-2
Figure 3-5. Type B or V Sensing with ACB Rotation ................................................................................. 3-3
Figure 3-6. Type A Sensing ....................................................................................................................... 3-3
Figure 3-7. Type B/Type V Sensing .......................................................................................................... 3-4
Figure 3-8. Type C Sensing ....................................................................................................................... 3-4
Figure 3-9. Type D Sensing ....................................................................................................................... 3-5
Figure 3-10. Type E Sensing ..................................................................................................................... 3-6
9171100990 Rev T
BE1-32R, BE1-32O/U Functional Description
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