Basler-electric BE1-50/51B-235 User Manual

INSTRUCTION MANUAL FOR OVERCURRENT RELAYS BE1-50/51B-235 and BE1-50/51B-236 Publication: 9252000898 Revision: B 03/11

ii BE1-50/51B-235/-236 General Information 9252000898 Rev B This page intentionally left blank.

9252000898 Rev B BE1-50/51B-235/-236 General Information 1-1 SECTION 1 • GENERAL INFORMATION INTRODUCTION BE1-50/51B-235 and BE1-50/51B-236 protec

1-2 BE1-50/51B-235/-236 General Information 9252000898 Rev B Advantages BE1-50/51B-235 and BE1-50/51B-236 overcurrent relays have many advantages ov

9252000898 Rev B BE1-50/51B-235/-236 General Information 1-3 Instantaneous Overcurrent A (50-A) Element Setting Range: 2 to 99 Aac BE1-50/51B-235 P

1-4 BE1-50/51B-235/-236 General Information 9252000898 Rev B Figure 1-1. Current Sensing Input Derating Curve (BE1-50/51B-235) Continuous Rating:

9252000898 Rev B BE1-50/51B-235/-236 General Information 1-5 Figure 1-3. Current Sensing Input Burden (BE1-50/51B-235) Figure 1-4BE1-50/51B-236 Bu

1-6 BE1-50/51B-235/-236 General Information 9252000898 Rev B Harmonic Rejection Rejection of odd and even harmonics is illustrated in Figure 1-5.

9252000898 Rev B BE1-50/51B-235/-236 General Information 1-7 Type Tests Isolation: IEEE C37.90 - 2005 Transient Surge: IEEE C37.90.1 - 2002 Radiat

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9252000898 Rev B BE1-50/51B-235/-236 Controls and Indicators i SECTION 2 • CONTROLS AND INDICATORS TABLE OF CONTENTS SECTION 2 • CONTROLS AND INDIC

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9252000898 Rev B BE1-50/51B-235/-236 Controls and Indicators 2-1 SECTION 2 • CONTROLS AND INDICATORS INTRODUCTION BE1-50/51B-235 and BE1-50/51B-236

2-2 BE1-50/51B-235/-236 Controls and Indicators 9252000898 Rev B Table 2-1. Front Panel Controls and Indicators Locator Description A Instantaneous

9252000898 Rev B BE1-50/51B-235/-236 Controls and Indicators 2-3 CIRCUIT BOARD CONTROLS Circuit board controls consist of two rotary selector switch

2-4 BE1-50/51B-235/-236 Controls and Indicators 9252000898 Rev B Table 2-2. Circuit Board Controls Locator Description A Target Operating Current Ju

9252000898 Rev B BE1-50/51B-235/-236 Functional Description i SECTION 3 • FUNCTIONAL DESCRIPTION TABLE OF CONTENTS SECTION 3 • FUNCTIONAL DESCRIPTI

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9252000898 Rev B BE1-50/51B-235/-236 Functional Description 3-1 SECTION 3 • FUNCTIONAL DESCRIPTION INTRODUCTION This section illustrates and describ

3-2 BE1-50/51B-235/-236 Functional Description 9252000898 Rev B Power-off sensing circuits measure the voltage across a capacitor at power-down and

9252000898 Rev B BE1-50/51B-235/-236 Installation i SECTION 4 • INSTALLATION TABLE OF CONTENTS SECTION 4 • INSTALLATION ...

9252000898 Rev B BE1-50/51B-235/-236 Introduction i INTRODUCTION This instruction manual provides information about the operation and installation of

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9252000898 Rev B BE1-50/51B-235/-236 Installation 4-1 SECTION 4 • INSTALLATION GENERAL When not shipped as part of a control or switchgear panel, th

4-2 BE1-50/51B-235/-236 Installation 9252000898 Rev B CONNECTIONS Typical ac and dc connections are shown in Figures 4-1 and 4-2. Figure 4-1. Typi

9252000898 Rev B BE1-50/51B-235/-236 Installation 4-3 Figure 4-2. Typical DC Connections APPLICATION COORDINATION In a typical application coordina

4-4 BE1-50/51B-235/-236 Installation 9252000898 Rev B From the reset characteristic curve equation: 12−=MRDTR M equals 0 if current goes to zero. A

9252000898 Rev A BE1-50/51B-235/-236 Testing i SECTION 5 • TESTING TABLE OF CONTENTS SECTION 5 • TESTING ...

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9252000898 Rev A BE1-50/51B-235/-236 Testing 5-1 SECTION 5 • TESTING INTRODUCTION Proper relay operation may be confirmed by performing the test pro

5-2 BE1-50/51B-235/-236 Testing 9252000898 Rev A 2. Apply and increase current to terminals 8 and 9 until the Active/Pickup LED turns red. The appl

9252000898 Rev A BE1-50/51B-235/-236 Testing 5-3 b. Set circuit board switch SW3 as follows: SW3-1 = ON for 50 Hz operation or OFF for 60 Hz operat

ii BE1-50/51B-235/-236 Introduction 9252000898 Rev B First Printing: April 2008 Printed in USA © 2008-2011 Basler Electric, Highland Illinois 62249 U

5-4 BE1-50/51B-235/-236 Testing 9252000898 Rev A 2. Apply and slowly increase current to terminals 8 and 9 until the 50-B output contacts close.

9252000898 Rev A BE1-50/51B-235/-236 Testing 5-5 8. Slowly increase the voltage source to provide target current and verify that the Instantaneous

5-6 BE1-50/51B-235/-236 Testing 9252000898 Rev A 6. Connect a jumper to the Instantaneous Overcurrent Manual Trip jacks. Verify that the stop input

9252000898 Rev A BE1-50/51B-235/-236 Testing 5-7 b. Set circuit board switch SW3 as follows: SW3-1 = ON for 50 Hz operation or OFF for 60 Hz operat

5-8 BE1-50/51B-235/-236 Testing 9252000898 Rev A Figure 5-4. 51 Pickup, Time Dial, Integrating Reset, and 50-A Pickup Test Setup 1. Connect and c

9252000898 Rev A BE1-50/51B-235/-236 Testing 5-9 Figure 5-5. 50-B Pickup Test Setup 1. Connect and configure the relay for target indicator testin

5-10 BE1-50/51B-235/-236 Testing 9252000898 Rev A Figure 5-6. Target Indicator Test Setup 1. Configure the relay for manual trip testing: Manual

9252000898 Rev B BE1-50/51B-235/-236 Characteristic Curves i APPENDIX A • CHARACTERISTIC CURVES TABLE OF CONTENTS APPENDIX A • CHARACTERISTIC CURVE

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9252000898 Rev B BE1-50/51B-235/-236 Characteristic Curves A-1 APPENDIX A • CHARACTERISTIC CURVES INTRODUCTION This appendix describes and defines t

9252000898 Rev B BE1-50/51B-235/-236 Introduction iii REVISION HISTORY The following information provides a historical summary of the changes made to

A-2 BE1-50/51B-235/-236 Characteristic Curves 9252000898 Rev B Inverse Time Functions Characteristic curves for the inverse and definite time functi

9252000898 Rev B BE1-50/51B-235/-236 Characteristic Curves A-3 Figures A-2 through A-15 illustrate the BE1-50/51B-235 and BE1-50/51B-236 time ov

A-4 BE1-50/51B-235/-236 Characteristic Curves 9252000898 Rev B Figure A-3. Long Inverse (L) Time Characteristic Curve (SW3-3 Off, Similar to ABB CO

9252000898 Rev B BE1-50/51B-235/-236 Characteristic Curves A-5 Figure A-4. Definite Time (D) Time Characteristic Curve (Similar to ABB CO-6)

A-6 BE1-50/51B-235/-236 Characteristic Curves 9252000898 Rev B Figure A-5. Moderately Inverse (M) Time Characteristic Curve (Similar to ABB CO-7)

9252000898 Rev B BE1-50/51B-235/-236 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-235/-236 Characteristic Curves 9252000898 Rev B Figure A-7. Very Inverse (V) Time Characteristic Curve (SW3-3 Off, Similar to ABB CO

9252000898 Rev B BE1-50/51B-235/-236 Characteristic Curves A-9 Figure A-8. Extremely Inverse (E) Time Characteristic Curve (SW3-3 Off, Similar to A

A-10 BE1-50/51B-235/-236 Characteristic Curves 9252000898 Rev B Figure A-9. BS142 Very Inverse (BS142-B) Time Characteristic Curve

9252000898 Rev B BE1-50/51B-235/-236 Characteristic Curves A-11 Figure A-10. BS142 Extremely Inverse (BS142-C) Time Characteristic Curve

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A-12 BE1-50/51B-235/-236 Characteristic Curves 9252000898 Rev B Figure A-11. Short Inverse (S2) Time Characteristic Curve (SW3-3 On, Similar to GE

9252000898 Rev B BE1-50/51B-235/-236 Characteristic Curves A-13 Figure A-12. Long Inverse (L2) Time Characteristic Curve (SW3-3 On, Similar to GE I

A-14 BE1-50/51B-235/-236 Characteristic Curves 9252000898 Rev B Figure A-13. Inverse (I2) Time Characteristic Curve (SW3-3 On, Similar to GE IAC 51

9252000898 Rev B BE1-50/51B-235/-236 Characteristic Curves A-15 Figure A-14. Very Inverse (V2) Time Characteristic Curve (SW3-3 On, Similar to GE I

A-16 BE1-50/51B-235/-236 Characteristic Curves 9252000898 Rev B Figure A-15. Extremely Inverse (E2) Time Characteristic Curve (SW3-3 On, Similar to

9252000898 Rev B BE1-50/51B-235/-236 Characteristic Curves A-17 Timing Accuracy Timing accuracy is the sum of ±1 cycle, ±2%. This accuracy applies t

A-18 BE1-50/51B-235/-236 Characteristic Curves 9252000898 Rev B Reset occurs within 16 ms of when the current decreases to 95% of the pickup level.

12570 State Route 143Highland IL 62249-1074 USAwww.basler.com, [email protected] +1 618.654.2341 Fax +1 618.654.2351®

9252000898 Rev B BE1-50/51B-235/-236 Introduction v CONTENTS SECTION 1 • GENERAL INFORMATION ...

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9252000898 Rev B BE1-50/51B-235/-236 General Information i SECTION 1 • GENERAL INFORMATION TABLE OF CONTENTS SECTION 1 • GENERAL INFORMATION ...