BE1-25 Introduction
iii
CONTENTS
SECTION 1
•
GENERAL INFORMATION ................................................................................................. 1
INTRODUCTION ....................................................................................................................................... 1
DESCRIPTION .......................................................................................................................................... 1
APPLICATION ........................................................................................................................................... 1
SYNC-CHECK FUNCTION ....................................................................................................................... 1
CONTACT SENSING ................................................................................................................................ 2
VOLTAGE MONITOR OPTIONS............................................................................................................... 2
Mode Switches ....................................................................................................................................... 2
Condition Switches................................................................................................................................. 3
Voltage Difference.................................................................................................................................. 3
Option 2-R, 2-T, or 2-U (Phasor Voltage Difference) ............................................................................. 4
Option 2-A, 2-B, or 2-C (Average Voltage Difference) ........................................................................... 5
Output Relay .......................................................................................................................................... 6
OTHER OPTIONS ..................................................................................................................................... 7
Expandable Window............................................................................................................................... 7
External Condition Switches................................................................................................................... 7
Push-to-Energize Output Pushbuttons................................................................................................... 7
MODEL AND STYLE NUMBER................................................................................................................. 7
Style Number Example........................................................................................................................... 7
SPECIFICATIONS ..................................................................................................................................... 9
SECTION 2
•
HUMAN-MACHINE INTERFACE ........................................................................................ 1
CONTROLS AND INDICATORS ............................................................................................................... 1
SECTION 3
•
FUNCTIONAL DESCRIPTION ............................................................................................ 1
GENERAL.................................................................................................................................................. 1
FUNCTIONAL DESCRIPTION .................................................................................................................. 1
Step-Down Transformers ....................................................................................................................... 1
Zero-Cross and Phase Difference Measurement................................................................................... 1
Comparator ............................................................................................................................................ 1
Timer ...................................................................................................................................................... 1
Minimum Voltage Detection ................................................................................................................... 2
Contact Sensing Options ....................................................................................................................... 2
Power Supply ......................................................................................................................................... 2
Power Supply Status Output Option ...................................................................................................... 3
Voltage Monitor Options......................................................................................................................... 3
Target Indicator Option .......................................................................................................................... 4
SECTION 4
•
INSTALLATION................................................................................................................... 1
GENERAL.................................................................................................................................................. 1
RELAY OPERATING PRECAUTIONS ...................................................................................................... 1
DIELECTRIC TEST ................................................................................................................................... 1
MOUNTING ............................................................................................................................................... 1
Relay ...................................................................................................................................................... 1
Resistor Module ..................................................................................................................................... 1
Contact Sensing Module ........................................................................................................................ 2
CONNECTIONS ........................................................................................................................................ 7
SECTION 5
•
TESTING.............................................................................................................................. 1
GENERAL.................................................................................................................................................. 1
RELAY OPERATING PRECAUTIONS ...................................................................................................... 1
SWITCH SETTINGS.................................................................................................................................. 1
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