INSTRUCTION MANUAL FOR OVERCURRENT RELAY BE1-50/51B-231 Publication: 9252000895 Revision: C 12/11
ii BE1-50/51B-231 General Information 9252000895 Rev C
9252000895 Rev C BE1-50/51B-231 General Information 1-1 SECTION 1 • GENERAL INFORMATION Introduction BE1-50/51B-231 protective relays are direct re
1-2 BE1-50/51B-231 General Information 9252000895 Rev C Internal switches provide for selecting instantaneous element delays of 0.0, 0.1, 0.2, or
9252000895 Rev C BE1-50/51B-231 General Information 1-3 Nine inverse time functions and one fixed time function can be selected by the front-panel C
1-4 BE1-50/51B-231 General Information 9252000895 Rev C † Figure numbers refer to the characteristic curves located in Appendix A, Time Characteris
9252000895 Rev C BE1-50/51B-231 General Information 1-5 Instantaneous characteristic curves are similar to standard electromechanical instantaneous
1-6 BE1-50/51B-231 General Information 9252000895 Rev C Burden Burden is non-linear. Figure 1-3 illustrates the device burden. At 0.5 amperes ...
9252000895 Rev C BE1-50/51B-231 General Information 1-7 Harmonic Response Figure 1-4 shows that a relay set for 1 ampere pickup would pick up at 0
1-8 BE1-50/51B-231 General Information 9252000895 Rev C Environment Operating Temperature ... –40°C to 70°C (–40°F to158°F) Storage Tempe
9252000895 Rev C BE1-50/51B-231 Controls and Indicators i SECTION 2 • CONTROLS AND INDICATORS TABLE OF CONTENTS SECTION 2 • CONTROLS AND INDICATORS
ii BE1-50/51B-231 Controls and Indicators 9252000895 Rev C
9252000895 Rev C BE1-50/51B-231 Controls and Indicators 2-1 SECTION 2 • CONTROLS AND INDICATORS Introduction Figure 2-1 illustrates the front panel
2-2 BE1-50/51B-231 Controls and Indicators 9252000895 Rev C Figure 2-2. Location of SW3 P0053-50SW3
9252000895 Rev C BE1-50/51B-231 Controls and Indicators 2-3 Table 2-1. BE1-50/51B-231 Controls and Indicators (Refer to Figures 2-1 and 2-2) Locator
2-4 BE1-50/51B-231 Controls and Indicators 9252000895 Rev C
9252000895 Rev C BE1-50/51B-231 Functional Description i SECTION 3 • FUNCTIONAL DESCRIPTION TABLE OF CONTENTS SECTION 3 • FUNCTIONAL DESCRIPTION ..
ii BE1-50/51B-231 Functional Description 9252000895 Rev C
9252000895 Rev C BE1-50/51B-231 Functional Description 3-1 SECTION 3 • FUNCTIONAL DESCRIPTION General BE1-50/51B-231 Overcurrent Relays are micropr
3-2 BE1-50/51B-231 Functional Description 9252000895 Rev C Outputs System circuit breakers controlled by the output contacts can be manually tripped
9252000895 Rev C BE1-50/51B-231 Installation i SECTION 4 • INSTALLATION TABLE OF CONTENTS SECTION 4 • INSTALLATION ...
9252000895 Rev C BE1-50/51B-231 Introduction i INTRODUCTION This instruction manual provides information about the operation and installation of the
ii BE1-50/51B-231 Installation 9252000895 Rev C
9252000895 Rev C BE1-50/51B-231 Installation 4-1 SECTION 4 • INSTALLATION General When not shipped as part of a control or switchgear panel, the re
4-2 BE1-50/51B-231 Installation 9252000895 Rev C From the reset characteristic curve equation. 1MRDT2Reset−= seconds 15.51027.752−=−×= M = 0 if curr
9252000895 Rev C BE1-50/51B-231 Installation 4-3 Connections Typical ac input and dc control connections are shown in Figures 4-2 and 4-3. Refer to
4-4 BE1-50/51B-231 Installation 9252000895 Rev C Figure 4-3. DC Control Connections Maintenance BE1-50/51B-231 overcurrent relays require no preve
9252000895 Rev C BE1-50/51B-231 Testing i SECTION 5 • TESTING TABLE OF CONTENTS SECTION 5 • TESTING ...
ii BE1-50/51B-231 Testing 9252000895 Rev C
9252000895 Rev C BE1-50/51B-231 Testing 5-1 SECTION 5 • TESTING General Dielectric testing, operational testing, and periodic testing are described
5-2 BE1-50/51B-231 Testing 9252000895 Rev C Figure 5-1. Pickup and Timing Test Setup Figure 5-2. Target Operational Test Setup
9252000895 Rev C BE1-50/51B-231 Testing 5-3 NOTE When testing TIME overcurrent functions, INST PICKUP settings of 00 will affect the calibration of
ii BE1-50/51B-231 Introduction 9252000895 Rev C First Printing: January 2007 Printed in USA © 2007-2011 Basler Electric, Highland Illinois 62249 US
5-4 BE1-50/51B-231 Testing 9252000895 Rev C Perform preliminary setup: Time Dial Test • Connect test setup as shown in Figure 5-1. • Insure that S
9252000895 Rev C BE1-50/51B-231 Testing 5-5 Perform preliminary setup: Integrating Reset Test • Connect test setup as shown in Figure 5-1. • Insur
5-6 BE1-50/51B-231 Testing 9252000895 Rev C
9252000895 Rev C BE1-50/51B-231 Time Characteristic Curves i APPENDIX A • TIME CHARACTERISTIC CURVES TABLE OF CONTENTS APPENDIX A • TIME CHARACTERI
ii BE1-50/51B-231 Time Characteristic Curves 9252000895 Rev C
9252000895 Rev C BE1-50/51B-231 Time Characteristic Curves A-1 APPENDIX A • TIME CHARACTERISTIC CURVES Time Characteristic Curves Figures A-1 throug
A-2 BE1-50/51B-231 Time Characteristic Curves 9252000895 Rev C Figure A-2. Time Characteristic Curve, L-Long Inverse (SW3-3 OFF, Similar to ABB CO-
9252000895 Rev C BE1-50/51B-231 Time Characteristic Curves A-3 Figure A-3. Time Characteristic Curve, D-Definite Time (Similar to ABB CO-6)
A-4 BE1-50/51B-231 Time Characteristic Curves 9252000895 Rev C Figure A-4. Time Characteristic Curve, M-Moderately Inverse (Similar to ABB CO-7)
9252000895 Rev C BE1-50/51B-231 Time Characteristic Curves A-5 Figure A-5. Time Characteristic Curve, I-Inverse (SW3-3 OFF, Similar to ABB CO-8)
9252000895 Rev C BE1-50/51B-231 Introduction iii REVISION HISTORY The following information provides a historical summary of the changes made to thi
A-6 BE1-50/51B-231 Time Characteristic Curves 9252000895 Rev C Figure A-6. Time Characteristic Curve, V-Very Inverse (SW3-3 OFF, Similar to ABB CO
9252000895 Rev C BE1-50/51B-231 Time Characteristic Curves A-7 Figure A-7. Time Characteristic Curve, E-Extremely Inverse (SW3-3 OFF, Similar to AB
A-8 BE1-50/51B-231 Time Characteristic Curves 9252000895 Rev C Figure A-8. Time Characteristic Curve, BS142-B (BS142 Very Inverse)
9252000895 Rev C BE1-50/51B-231 Time Characteristic Curves A-9 Figure A-9. Time Characteristic Curve, BS142-C (BS142 Extremely Inverse)
A-10 BE1-50/51B-231 Time Characteristic Curves 9252000895 Rev C Figure A-10. Time Characteristic Curve, S2-Short Inverse (SW3-3 ON, Similar to GE I
9252000895 Rev C BE1-50/51B-231 Time Characteristic Curves A-11 Figure A-11. Time Characteristic Curve, L2-Long Inverse (SW3-3 ON, Similar to GE IA
A-12 BE1-50/51B-231 Time Characteristic Curves 9252000895 Rev C Figure A-12. Time Characteristic Curve, I2-Inverse (SW3-3 ON, Similar to GE IAC 51)
9252000895 Rev C BE1-50/51B-231 Time Characteristic Curves A-13 Figure A-13. Time Characteristic Curve, V2-Very Inverse (SW3-3 ON, Similar to GE IA
A-14 BE1-50/51B-231 Time Characteristic Curves 9252000895 Rev C Figure A-14. Time Characteristic Curve, E2-Extremely Inverse (SW3-3 ON, Similar to
iv BE1-50/51B-231 Introduction 9252000895 Rev C
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9252000895 Rev C BE1-50/51B-231 Introduction v CONTENTS SECTION 1 • GENERAL INFORMATION ...
vi BE1-50/51B-231 Introduction 9252000895 Rev C
9252000895 Rev C BE1-50/51B-231 General Information i SECTION 1 • GENERAL INFORMATION TABLE OF CONTENTS SECTION 1 • GENERAL INFORMATION ....
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