Basler-electric BE1-50/51B-244 User Manual

INSTRUCTION MANUAL FOR OVERCURRENT RELAYS BE1-50/51B-244 Publication: 9252000793 Revision: C 12/11 ACTIVE/PICKUPPICKUP(0.5 MIN. SET)TIME DIALTENTH

ii BE1-50/51B-244 General Information 9252000793 Rev C

9252000793 Rev C BE1-50/51B-244 General Information 1-1 SECTION 1 • GENERAL INFORMATION Introduction BE1-50/51B-244 protective relays are direct re

1-2 BE1-50/51B-244 General Information 9252000793 Rev C Westinghouse CO type curves, and instantaneous or integrating reset characteristics. Switch

9252000793 Rev C BE1-50/51B-244 General Information 1-3 Switch selectable—no intentional delay (SW3-2 OFF) or a fixed delay of 100 ms (SW3-2 ON). Ap

1-4 BE1-50/51B-244 General Information 9252000793 Rev C Figure 1-2. Current Sensing Input Burden (BE1-50/51B-244) Frequency Response A change of ±

9252000793 Rev C BE1-50/51B-244 General Information 1-5 Target Indicators A gravity-latched, manually-reset, current-operated target indicator is pr

1-6 BE1-50/51B-244 General Information 9252000793 Rev C

9252000793 Rev C BE1-50/51B-244 Controls and Indicators i SECTION 2 • CONTROLS AND INDICATORS TABLE OF CONTENTS SECTION 2 • CONTROLS AND INDICATORS

ii BE1-50/51B-244 Controls and Indicators 9252000793 Rev C

9252000793 Rev C BE1-50/51B-244 Controls and Indicators 2-1 SECTION 2 • CONTROLS AND INDICATORS Introduction BE1-50/51B-244 relay controls and indic

2-2 BE1-50/51B-244 Controls and Indicators 9252000793 Rev C Table 2-1. Front Panel Controls and Indicators Locator Description A Instantaneous Overc

9252000793 Rev C BE1-50/51B-244 Controls and Indicators 2-3 Circuit Board Controls Circuit board controls consist of two rotary selector switches, a

2-4 BE1-50/51B-244 Controls and Indicators 9252000793 Rev C Table 2-2. Circuit Board Controls Locator Description A Target Operating Current Jumpers

9252000793 Rev C BE1-50/51B-244 Functional Description i SECTION 3 • FUNCTIONAL DESCRIPTION TABLE OF CONTENTS SECTION 3 • FUNCTIONAL DESCRIPTION ..

ii BE1-50/51B-244 Functional Description 9252000793 Rev C

9252000793 Rev C BE1-50/51B-244 Functional Description 3-1 SECTION 3 • FUNCTIONAL DESCRIPTION Introduction This section illustrates and describes th

3-2 BE1-50/51B-244 Functional Description 9252000793 Rev C RC time constant. This provides information from the integrating reset function even when

9252000793 Rev C BE1-50/51B-244 Installation i SECTION 4 • INSTALLATION TABLE OF CONTENTS SECTION 4 • INSTALLATION ...

ii BE1-50/51B-244 Installation 9252000793 Rev C

9252000793 Rev C BE1-50/51B-244 Installation 4-1 SECTION 4 • INSTALLATION General When not shipped as part of a control or switchgear panel, the rel

9252000793 Rev C BE1-50/51B-244 Introduction i INTRODUCTION This instruction manual provides information about the operation and installation of the

4-2 BE1-50/51B-244 Installation 9252000793 Rev C Figure 4-2. Outline Dimensions, FT11 Case Figure 4-3. Outline Dimensions, FT21 Case Factory Sett

9252000793 Rev C BE1-50/51B-244 Installation 4-3 Installation Select the desired relay settings before putting the relay into service. Changing pick

4-4 BE1-50/51B-244 Installation 9252000793 Rev C Figure 4-5. Typical DC Connections Figure 4-6. Terminal Connections, Rear View 150-A51S SHORT IN

9252000793 Rev C BE1-50/51B-244 Installation 4-5 Application Coordination In a typical application coordination scheme, a BE1-50/51B-244 is used to

4-6 BE1-50/51B-244 Installation 9252000793 Rev C Maintenance BE1-50/51B-244 relays require no preventative maintenance other than periodic checking

9252000793 Rev C BE1-50/51B-244 Testing i SECTION 5 • TESTING TABLE OF CONTENTS SECTION 5 • TESTING ...

ii BE1-50/51B-244 Testing 9252000793 Rev C

9252000793 Rev C BE1-50/51B-244 Testing 5-1 SECTION 5 • TESTING Introduction Proper relay operation may be confirmed by performing the test procedur

5-2 BE1-50/51B-244 Testing 9252000793 Rev C 2. Apply and increase current to terminals 8 and 9 until the Active/Pickup LED turns red. The applied c

9252000793 Rev C BE1-50/51B-244 Testing 5-3 1. Connect and configure the relay for 50-A pickup testing: Instantaneous Overcurrent A (50-A) Pickup a

ii BE1-50/51B-244 Introduction 9252000793 Rev C First Printing: March 2011 Printed in USA © 2011 Basler Electric, Highland Illinois 62249 USA All R

5-4 BE1-50/51B-244 Testing 9252000793 Rev C f. Set INST PICKUP (50-A) to 90. g. Set INST PICKUP (50-B) (accessed at the top side of the assembly)

9252000793 Rev C BE1-50/51B-244 Testing 5-5 8. Slowly increase the voltage source to provide target current and verify that the Instantaneous targe

5-6 BE1-50/51B-244 Testing 9252000793 Rev C

9252000793 Rev C BE1-50/51B-244 Characteristic Curves i APPENDIX A • CHARACTERISTIC CURVES TABLE OF CONTENTS APPENDIX A • CHARACTERISTIC CURVES ...

ii BE1-50/51B-244 Characteristic Curves 9252000793 Rev C

9252000793 Rev C BE1-50/51B-244 Characteristic Curves A-1 APPENDIX A • CHARACTERISTIC CURVES Introduction This appendix describes and defines the in

A-2 BE1-50/51B-244 Characteristic Curves 9252000793 Rev C Inverse Time Functions Characteristic curves for the inverse and definite time functions a

9252000793 Rev C BE1-50/51B-244 Characteristic Curves A-3 Figures A-2 through A-15 illustrate the BE1-50/51B-244 time overcurrent characteristic cur

A-4 BE1-50/51B-244 Characteristic Curves 9252000793 Rev C Figure A-3. Long Inverse (L) Time Characteristic Curve (SW3-3 Off, Similar to ABB CO-5)

9252000793 Rev C BE1-50/51B-244 Characteristic Curves A-5 Figure A-4. Definite Time (D) Time Characteristic Curve (Similar to ABB CO-6)

9252000793 Rev C BE1-50/51B-244 Introduction iii REVISION HISTORY The following information provides a historical summary of the changes made to thi

A-6 BE1-50/51B-244 Characteristic Curves 9252000793 Rev C Figure A-5. Moderately Inverse (M) Time Characteristic Curve (Similar to ABB CO-7)

9252000793 Rev C BE1-50/51B-244 Characteristic Curves A-7 Figure A-6. Inverse (I) Time Characteristic Curve (SW3-3 Off, Similar to ABB CO-8)

A-8 BE1-50/51B-244 Characteristic Curves 9252000793 Rev C Figure A-7. Very Inverse (V) Time Characteristic Curve (SW3-3 Off, Similar to ABB CO-9)

9252000793 Rev C BE1-50/51B-244 Characteristic Curves A-9 Figure A-8. Extremely Inverse (E) Time Characteristic Curve (SW3-3 Off, Similar to ABB CO

A-10 BE1-50/51B-244 Characteristic Curves 9252000793 Rev C Figure A-9. BS142 Very Inverse (BS142-B) Time Characteristic Curve

9252000793 Rev C BE1-50/51B-244 Characteristic Curves A-11 Figure A-10. BS142 Extremely Inverse (BS142-C) Time Characteristic Curve

A-12 BE1-50/51B-244 Characteristic Curves 9252000793 Rev C Figure A-11. Short Inverse (S2) Time Characteristic Curve (SW3-3 On, Similar to GE IAC 5

9252000793 Rev C BE1-50/51B-244 Characteristic Curves A-13 Figure A-12. Long Inverse (L2) Time Characteristic Curve (SW3-3 On, Similar to GE IAC 66

A-14 BE1-50/51B-244 Characteristic Curves 9252000793 Rev C Figure A-13. Inverse (I2) Time Characteristic Curve (SW3-3 On, Similar to GE IAC 51)

9252000793 Rev C BE1-50/51B-244 Characteristic Curves A-15 Figure A-14. Very Inverse (V2) Time Characteristic Curve (SW3-3 On, Similar to GE IAC 53

iv BE1-50/51B-244 Introduction 9252000793 Rev C

A-16 BE1-50/51B-244 Characteristic Curves 9252000793 Rev C Figure A-15. Extremely Inverse (E2) Time Characteristic Curve (SW3-3 On, Similar to GE I

9252000793 Rev C BE1-50/51B-244 Characteristic Curves A-17 Timing Accuracy Timing accuracy is the sum of ±1 cycle, ±2%. This accuracy applies to the

A-18 BE1-50/51B-244 Characteristic Curves 9252000793 Rev C Reset occurs within 16 ms of when the current decreases to 95% of the pickup level. Insta

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9252000793 Rev C BE1-50/51B-244 Introduction v CONTENTS SECTION 1 • GENERAL INFORMATION ...

vi BE1-50/51B-244 Introduction 9252000793 Rev C

9252000793 Rev C BE1-50/51B-244 General Information i SECTION 1 • GENERAL INFORMATION TABLE OF CONTENTS SECTION 1 • GENERAL INFORMATION ....