BE1-50/51M - Introduction iii
CONTENTS
SECTION 1 GENERAL INFORMATION 1-1
Description ............................................. 1-1
Application .............................................. 1-1
Model Numbers .......................................... 1-4
Specifications ........................................... 1-5
Characteristic Curves ..................................... 1-13
SECTION 2 CONTROLS AND INDICATORS 2-1
SECTION 3 FUNCTIONAL DESCRIPTION 3-1
General ................................................. 3-1
Functional Description .................................... 3-1
Sensing Input ........................................ 3-1
Power Supply ........................................ 3-1
Instantaneous Signal .................................. 3-1
Time Signal .......................................... 3-1
Microprocessor ...................................... 3-1
Power-Off Sensing .................................... 3-2
Outputs ............................................. 3-2
SECTION 4 INSTALLATION 4-1
General ................................................. 4-1
Dielectric Test ........................................... 4-1
Mounting ............................................... 4-1
Outline Dimensions ................................... 4-2
Panel Drilling Diagram, C1 Case ........................ 4-3
Connections ............................................ 4-4
AC Input Connections ................................. 4-4
DC Control Connections ............................... 4-5
BE1-50/51M Overcurrent Relay, Rear View ................ 4-6
SECTION 5 TESTING 5-1
General ................................................. 5-1
Dielectric Test ........................................... 5-1
Operational Test Procedure ................................ 5-1
Test Equipment Required .............................. 5-1
Pickup and Timing Test Setup .......................... 5-2
Target Operational Test Setup .......................... 5-2
Test Procedure, Models BE1-50/51M-X04 and -X09 ......... 5-3
Test Procedure, Models BE1-50/51M-X00 and -X08 ......... 5-6
Setting the Relay ......................................... 5-8
Periodic Tests ........................................... 5-8
General ............................................. 5-8
Periodic Test ......................................... 5-8
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