Basler BE1-50B-235 Instruction Manual Download Page 66

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A-18 BE1-50/51B-235/-236

Characteristic Curves

9252000898 Rev —

Instantaneous Reset

Reset occurs within 16 ms of when the current decreases to 95% of the pickup level.

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Summary of Contents for BE1-50B-235

Page 1: ...INSTRUCTION MANUAL FOR OVERCURRENT RELAYS BE1 50 51B 235 and BE1 50 51B 236 Publication 9252000898 Revision 04 08 w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Page 2: ...w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Page 3: ...ctional Description Installation and Maintenance Testing WARNING To avoid personal injury or equipment damage only qualified personnel should perform the procedures in this manual NOTE Be sure that th...

Page 4: ...nd design of all features and options are subject to modification without notice Should further information be required contact Basler Electric BASLER ELECTRIC ROUTE 143 BOX 269 HIGHLAND IL 62249 USA...

Page 5: ...following information provides a historical summary of the changes made to this instruction manual 9252000898 Revisions are listed in reverse chronological order Manual Revision and Date Change 04 08...

Page 6: ...iv BE1 50 51B 235 236 Introduction 9252000898 Rev This page intentionally left blank w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Page 7: ...ENTS SECTION 1 GENERAL INFORMATION 1 1 SECTION 2 CONTROLS AND INDICATORS 2 1 SECTION 3 FUNCTIONAL DESCRIPTION 3 1 SECTION 4 INSTALLATION 4 1 SECTION 5 TESTING 5 1 APPENDIX A CHARACTERISTIC CURVES A 1...

Page 8: ...vi BE1 50 51B 235 236 Introduction 9252000898 Rev This page intentionally left blank w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Page 9: ...y Response 1 6 Transient Response 1 6 Harmonic Rejection 1 6 Target Indicators 1 6 Output Contacts 1 6 Type Tests 1 7 Environment 1 7 Physical 1 7 Figures Figure 1 1 Current Sensing Input Derating Cur...

Page 10: ...ii BE1 50 51B 235 236 General Information 9252000898 Rev This page intentionally left blank w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Page 11: ...50 elements The 51 element offers timing characteristic curves similar to those used by GE IAC and ABB relays FEATURES A wide range of pickup settings and front panel selectable time characteristics...

Page 12: ...0 51B 236 Pickup Setting Range 0 1 to 3 18 Aac Setting Increment 0 02 Aac Accuracy Sum of 2 and 5 mAac Dropout Dropout occurs at 95 of pickup value Characteristic Curves Available curve types follow I...

Page 13: ...tic Curves illustrates the characteristic curve for the 50 A and 50 B elements Instantaneous Overcurrent B 50 B Element BE1 50 51B 235 Pickup Setting Range 1 to 15 9 Aac Setting increment 0 1 Aac Accu...

Page 14: ...0 20 40 60 Ambient Temperature C Current Aac Figure 1 1 Current Sensing Input Derating Curve BE1 50 51B 235 BE1 50 51B 236 Continuous Rating 2 8 Aac 1 Second Rating 80 Aac Continuous rating is 2 8 Aac...

Page 15: ...ent Amps Burden in VA rms Figure 1 3 Current Sensing Input Burden BE1 50 51B 235 BE1 50 51B 236 Burden Figure 1 4 illustrates the current sensing input burden characteristic At 0 1 Aac 57 0 At 1 0 Aac...

Page 16: ...put The level of trip circuit current required to operate each target is individually controlled by a circuit board jumper See Section 2 Controls and Indicators for jumper locations and function assig...

Page 17: ...ssignments 51 Element 1 10 50 A Element 1 10 50 B Element 2 10 Type Tests Isolation IEEE C37 90 Transient Surge IEEE C37 90 1 Radiated Interference IEEE C37 90 2 Electrostatic Discharge IEEE C37 90 3...

Page 18: ...1 8 BE1 50 51B 235 236 General Information 9252000898 Rev This page intentionally left blank w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Page 19: ...CATORS 2 1 INTRODUCTION 2 1 FRONT PANEL CONTROLS AND INDICATORS 2 1 CIRCUIT BOARD CONTROLS 2 3 Figures Figure 2 1 Front Panel Controls and Indicators 2 1 Figure 2 2 Circuit Board Controls 2 3 Tables T...

Page 20: ...ii BE1 50 51B 235 236 Controls and Indicators 9252000898 Rev This page intentionally left blank w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Page 21: ...on the front panel and circuit board FRONT PANEL CONTROLS AND INDICATORS Front panel controls and indicators are illustrated in Figure 2 1 and described in Table 2 1 The locators and descriptions of...

Page 22: ...s are reset by pressing the target reset button locator I D Time Overcurrent Pickup Selector Switches These two rotary switches select the time overcurrent pickup current setting in amperes UNITS and...

Page 23: ...tary selector switches a four position slide switch and two jumpers Circuit board controls are illustrated in Figure 2 2 and described in Table 2 2 The locators and descriptions of Table 2 2 correspon...

Page 24: ...ion selects an instantaneous reset characteristic C Instantaneous Overcurrent B Pickup Selector Switches These two screwdriver adjusted rotary switches select the instantaneous overcurrent B 50 B pick...

Page 25: ...ION 3 FUNCTIONAL DESCRIPTION 3 1 INTRODUCTION 3 1 FUNCTION BLOCK DESCRIPTIONS 3 1 Current Sensing Input 3 1 Power CT and Power Supply 3 1 Signal Conditioning 3 1 Microprocessor 3 1 Outputs 3 2 Target...

Page 26: ...ii BE1 50 51B 235 236 Functional Description 9252000898 Rev This page intentionally left blank w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Page 27: ...of the power supply serves as a reference for automatic calibration Signal Conditioning Current from the signal CT is rectified and applied to three independent sets of scaling resistors controlled b...

Page 28: ...r tripping duty A system circuit breaker controlled by the 51 or 50 A output contacts can be manually tripped by connecting a jumper across the Time Overcurrent Manual Trip jacks or the Instantaneous...

Page 29: ...ON 4 1 GENERAL 4 1 FACTORY SETTINGS 4 1 INSTALLATION 4 1 CONNECTIONS 4 2 APPLICATION COORDINATION 4 3 MAINTENANCE 4 4 STORAGE 4 4 Figures Figure 4 1 Typical AC Connections 4 2 Figure 4 2 Typical DC Co...

Page 30: ...ii BE1 50 51B 235 236 Installation 9252000898 Rev This page intentionally left blank w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Page 31: ...FF Westinghouse ABB type characteristic curves SW3 4 ON Integrating reset characteristics J1 pins 2 3 50 A minimum target operating current of 80 to 200 mA J2 pins 2 3 51 minimum target operating curr...

Page 32: ...50 51B 235 236 Installation 9252000898 Rev CONNECTIONS Typical ac and dc connections are shown in Figures 4 1 and 4 2 Figure 4 1 Typical AC Connections w w w E l e c t r i c a l P a r t M a n u a l s...

Page 33: ...0 51B 236 is configured with the following settings Integrating reset enabled SW3 4 ON ABB type curves selected SW3 3 OFF The feeder reclosing relay is set for two reclose attempts at 3 and 15 seconds...

Page 34: ...alue TA because rewind has not gone to zero Figure 4 3 Coordination Timing Diagram MAINTENANCE BE1 50 51B 235 and BE1 50 51B 236 relays require no preventative maintenance other than periodic checking...

Page 35: ...51B 236 One Ampere Sensing Input 5 6 Time Overcurrent 51 Pickup 5 6 Time Dial 5 6 Integrating Reset 5 6 Instantaneous Overcurrent A 50 A Pickup 5 7 Instantaneous Overcurrent B 50 B Pickup 5 8 Target...

Page 36: ...ii BE1 50 51B 235 236 Testing 9252000898 Rev This page intentionally left blank w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Page 37: ...t operation Timer or counter Model BE1 50 51B 235 Five Ampere Sensing Input Time Overcurrent 51 Pickup 1 Connect and configure the relay for 51 pickup testing a Connect the test setup shown in Figure...

Page 38: ...ord the elapsed time from when current is applied until the 51 output contacts close 3 Apply the current step from 0 to 1 5 Aac and record the elapsed time The elapsed time should be between 0 345 and...

Page 39: ...wly increase the current applied to terminals 8 and 9 until the 50 A output contacts close The applied current should be between 7 815 and 8 185 Aac 6 Reduce the applied current to zero Figure 5 1 51...

Page 40: ...e ABB type characteristic curves SW3 4 ON integrating reset characteristic c Set TIME DIAL to 0 0 d Set CURVE to S e Set TIME PICKUP to 1 0 f Set INST PICKUP 50 A to 90 g Set INST PICKUP 50 B accessed...

Page 41: ...istic curves SW3 4 ON integrating reset characteristic c Set TIME DIAL to 0 0 d Set CURVE to S e Set TIME PICKUP to 1 0 f Set INST PICKUP 50 A to 90 g Set INST PICKUP 50 B accessed at the top side of...

Page 42: ...or time dial testing a Connect the test setup shown in Figure 5 4 b Set circuit board switch SW3 as follows SW3 1 ON for 50 Hz operation or OFF for 60 Hz operation SW3 2 OFF no additional time delay f...

Page 43: ...SW3 2 OFF no additional time delay for the 50 A element SW3 3 ON Westinghouse ABB type characteristic curves SW3 4 ON integrating reset characteristic c Set TIME DIAL to 0 0 d Set CURVE to S e Set TIM...

Page 44: ...il the 50 B output contacts close The applied current should be between 0 387 and 0 413 Aac 3 Decrease the applied current until the 50 B output contacts open 4 Set INST PICKUP 50 B to 80 1 6 Aac 5 Sl...

Page 45: ...ins 2 and 3 gives a minimum operating current of 80 to 200 mA 4 Remove the target and sensing current and reset the target 5 Set TIME PICKUP to 1 8 6 Set INST PICKUP 50 A to 0 2 7 Apply 0 4 Aac to ter...

Page 46: ...r to the Time Overcurrent Manual Trip jacks Verify that the stop input of the test set timer recognizes a 51 contact closure 4 Remove the jumper and the current applied at relay terminals 8 and 9 5 Ap...

Page 47: ...ff Similar to ABB CO 8 A 7 Figure A 7 Very Inverse V Time Characteristic Curve SW3 3 Off Similar to ABB CO 9 A 8 Figure A 8 Extremely Inverse E Time Characteristic Curve SW3 3 Off Similar to ABB CO 11...

Page 48: ...ii BE1 50 51B 235 236 Characteristic Curves 9252000898 Rev This page intentionally left blank w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Page 49: ...be set for no intentional delay switch SW3 2 open or a fixed delay of 100 ms SW3 2 closed Figure 2 2 illustrates the location of SW3 The time delay of the 50 B element is not switch selectable and is...

Page 50: ...1 000 0 5000 0 028 1 750 I ABB CO 8 A 6 8 9341 0 17966 1 000 2 0938 0 028 9 000 V ABB CO 9 A 7 5 4678 0 10814 1 000 2 0469 0 028 5 500 E ABB CO 11 A 8 7 7624 0 02758 1 000 2 0938 0 028 7 750 B BS142...

Page 51: ...teristic Curves Figures A 2 through A 15 illustrate the BE1 50 51B 235 and BE1 50 51B 236 time overcurrent characteristic curves Figure A 2 Short Inverse S Time Characteristic Curve SW3 3 Off Similar...

Page 52: ...A 4 BE1 50 51B 235 236 Characteristic Curves 9252000898 Rev Figure A 3 Long Inverse L Time Characteristic Curve SW3 3 Off Similar to ABB CO 5 w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Page 53: ...9252000898 Rev BE1 50 51B 235 236 Characteristic Curves A 5 Figure A 4 Definite Time D Time Characteristic Curve Similar to ABB CO 6 w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Page 54: ...A 6 BE1 50 51B 235 236 Characteristic Curves 9252000898 Rev Figure A 5 Moderately Inverse M Time Characteristic Curve Similar to ABB CO 7 w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Page 55: ...9252000898 Rev 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 w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Page 56: ...A 8 BE1 50 51B 235 236 Characteristic Curves 9252000898 Rev Figure A 7 Very Inverse V Time Characteristic Curve SW3 3 Off Similar to ABB CO 9 w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Page 57: ...252000898 Rev BE1 50 51B 235 236 Characteristic Curves A 9 Figure A 8 Extremely Inverse E Time Characteristic Curve SW3 3 Off Similar to ABB CO 11 w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Page 58: ...A 10 BE1 50 51B 235 236 Characteristic Curves 9252000898 Rev Figure A 9 BS142 Very Inverse BS142 B Time Characteristic Curve w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Page 59: ...9252000898 Rev BE1 50 51B 235 236 Characteristic Curves A 11 Figure A 10 BS142 Extremely Inverse BS142 C Time Characteristic Curve w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Page 60: ...A 12 BE1 50 51B 235 236 Characteristic Curves 9252000898 Rev Figure A 11 Short Inverse S2 Time Characteristic Curve SW3 3 On Similar to GE IAC 55 w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Page 61: ...9252000898 Rev BE1 50 51B 235 236 Characteristic Curves A 13 Figure A 12 Long Inverse L2 Time Characteristic Curve SW3 3 On Similar to GE IAC 66 w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Page 62: ...A 14 BE1 50 51B 235 236 Characteristic Curves 9252000898 Rev Figure A 13 Inverse I2 Time Characteristic Curve SW3 3 On Similar to GE IAC 51 w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Page 63: ...9252000898 Rev BE1 50 51B 235 236 Characteristic Curves A 15 Figure A 14 Very Inverse V2 Time Characteristic Curve SW3 3 On Similar to GE IAC 53 w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Page 64: ...16 BE1 50 51B 235 236 Characteristic Curves 9252000898 Rev Figure A 15 Extremely Inverse E2 Time Characteristic Curve SW3 3 On Similar to GE IAC 77 w w w E l e c t r i c a l P a r t M a n u a l s c o...

Page 65: ...figured for integrating or instantaneous type reset Integrating reset simulates the disk reset of electromechanical relays and begins when the current decreases below 95 of pickup BE1 50 51B 235 and B...

Page 66: ...50 51B 235 236 Characteristic Curves 9252000898 Rev Instantaneous Reset Reset occurs within 16 ms of when the current decreases to 95 of the pickup level w w w E l e c t r i c a l P a r t M a n u a l...

Page 67: ...ROUTE 143 BOX 269 HIGHLAND IL 62249 USA http www basler com info basler com PHONE 1 618 654 2341 FAX 1 618 654 2351 w w w E l e c t r i c a l P a r t M a n u a l s c o m...

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