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9252000899 Rev —

BE1-50/51B-237/-238 General Information

SECTION 1

•

GENERAL INFORMATION

TABLE OF CONTENTS

SECTION 1

•

GENERAL INFORMATION ................................................................................................ 1-1

INTRODUCTION.................................................................................................................................... 1-1

FEATURES ............................................................................................................................................ 1-1

SPECIFICATIONS ................................................................................................................................. 1-2

Time Overcurrent (51) Element.......................................................................................................... 1-2

Instantaneous Overcurrent A (50-A) Element .................................................................................... 1-2

Instantaneous Overcurrent B (50-B) Element .................................................................................... 1-3

Current Sensing Input ........................................................................................................................ 1-3

Frequency Response ......................................................................................................................... 1-5

Transient Response ........................................................................................................................... 1-5

Harmonic Rejection ............................................................................................................................ 1-5

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 Curve (BE1-50/51B-237)...................................................... 1-3

Figure 1-2. Current Sensing Input Derating Curve (BE1-50/51B-238)...................................................... 1-4

Figure 1-3. Current Sensing Input Burden (BE1-50/51B-237) .................................................................. 1-4

Figure 1-4. Current Sensing Input Burden (BE1-50/51B-238) .................................................................. 1-5

Figure 1-5. Harmonic Rejection................................................................................................................. 1-6

Tables

Table 1-1. GE IAC Relays Suitable For Direct Replacement.................................................................... 1-1

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Содержание BE1-50/51B-237

Страница 1: ...INSTRUCTION MANUAL FOR OVERCURRENT RELAYS BE1 50 51B 237 and BE1 50 51B 238 Publication 9252000899 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...

Страница 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...

Страница 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...

Страница 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...

Страница 5: ...following information provides a historical summary of the changes made to this instruction manual 9252000899 Revisions are listed in reverse chronological order Manual Revision and Date Change 04 08...

Страница 6: ...iv BE1 50 51B 237 238 Introduction 9252000899 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...

Страница 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...

Страница 8: ...vi BE1 50 51B 237 238 Introduction 9252000899 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...

Страница 9: ...e 1 5 Transient Response 1 5 Harmonic Rejection 1 5 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 Curve BE1 50...

Страница 10: ...ii BE1 50 51B 237 238 General Information 9252000899 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...

Страница 11: ...are self powered compatible with 50 or 60 Hz power systems and have three protection elements one time overcurrent 51 element and two instantaneous overcurrent 50 elements The 51 element offers timing...

Страница 12: ...nd lists the applicable constants Curve Types Short Inverse Long Inverse Definite Time Moderately Inverse Inverse Very Inverse Extremely Inverse BS142 Very Inverse BS142 Extremely Inverse Fixed Time T...

Страница 13: ...of 2 and 5 mAac Dropout Dropout occurs at 95 of pickup value Time Delay Fixed at no intentional delay Appendix A Characteristic Curves illustrates the characteristic curve for the 50 A and 50 B elemen...

Страница 14: ...3 2 40 20 0 20 40 60 Ambient Temperature C Current Aac Figure 1 2 Current Sensing Input Derating Curve BE1 50 51B 238 BE1 50 51B 237 Burden Figure 1 3 illustrates the current sensing input burden char...

Страница 15: ...nput Current Amps Burden in VA rms Figure 1 4 Current Sensing Input Burden BE1 50 51B 238 Frequency Response A change of 5 Hz from the nominal 50 60 Hz current causes 0 5 change in the current require...

Страница 16: ...d 2 0 9 to 2 25 A Jumper Position Pins 2 and 3 80 mA to 200 mA Minimum operating current values See Output Contacts for the maximum acceptable levels of trip circuit currents Output Contacts Output co...

Страница 17: ...90 1 Radiated Interference IEEE C37 90 2 Electrostatic Discharge IEEE C37 90 3 Vibration IEC 255 21 1 Shock and Bump IEC 255 21 2 Environment Operating Temperature 40 to 70 C 40 to 158 F Storage Temp...

Страница 18: ...1 8 BE1 50 51B 237 238 General Information 9252000899 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...

Страница 19: ...CIRCUIT BOARD CONTROLS 2 3 Figures Figure 2 1 Front Panel Controls and Indicators 2 1 Figure 2 2 Circuit Board Controls 2 3 Figure 2 3 View of 50 B Pickup Selector Switches BE1 50 51B 237 2 5 Figure 2...

Страница 20: ...ii BE1 50 51B 237 238 Controls and Indicators 9252000899 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...

Страница 21: ...s are located 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 des...

Страница 22: ...current functions instantaneous pickup settings of 00 will affect the calibration of the time functions Time pickup settings of 00 also affect instantaneous functions F Target Indicators Red target in...

Страница 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...

Страница 24: ...Pickup Selector Switches These two screwdriver adjusted rotary switches select the instantaneous overcurrent B 50 B pickup current setting in amperes The 50 B pickup switches are accessed on the top s...

Страница 25: ...51B 237 238 Controls and Indicators 2 5 Figure 2 3 View of 50 B Pickup Selector Switches BE1 50 51B 237 Figure 2 4 View of 50 B Pickup Selector Switches BE1 50 51B 238 w w w E l e c t r i c a l P a r...

Страница 26: ...2 6 BE1 50 51B 237 238 Controls and Indicators 9252000899 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...

Страница 27: ...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...

Страница 28: ...ii BE1 50 51B 237 238 Functional Description 9252000899 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...

Страница 29: ...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...

Страница 30: ...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...

Страница 31: ...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...

Страница 32: ...ii BE1 50 51B 237 238 Installation 9252000899 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...

Страница 33: ...ntegrating 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 current of 80 to 200 mA INSTALLATION Select the desired relay...

Страница 34: ...50 51B 237 238 Installation 9252000899 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...

Страница 35: ...51B 238 is configured with the following settings Integrating reset enabled SW3 4 ON GE IAC type curves selected SW3 3 ON The feeder reclosing relay is set for two reclose attempts at 3 and 15 second...

Страница 36: ...alue TA because rewind has not gone to zero Figure 4 3 Coordination Timing Diagram MAINTENANCE BE1 50 51B 237 and BE1 50 51B 238 relays require no preventative maintenance other than periodic checking...

Страница 37: ...51B 238 One Ampere Sensing Input 5 6 Time Overcurrent 51 Pickup 5 6 Time Dial 5 6 Integrating Reset 5 7 Instantaneous Overcurrent A 50 A Pickup 5 7 Instantaneous Overcurrent B 50 B Pickup 5 8 Target I...

Страница 38: ...ii BE1 50 51B 237 238 Testing 9252000899 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...

Страница 39: ...target operation Timer or counter Model BE1 50 51B 237 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 Fi...

Страница 40: ...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...

Страница 41: ...l the 50 A output contacts open 4 Set INST PICKUP 50 A to 08 5 Slowly increase the current applied to terminals 5 and 6 until the 50 A output contacts close The applied current should be between 7 815...

Страница 42: ...50 B Pickup Test Setup Target Indicators 1 Connect and configure the relay for target indicator testing a Connect the test setup shown in Figure 5 3 b Set circuit board switch SW3 as follows SW3 1 ON...

Страница 43: ...antaneous target operates at the level of current determined by the Target Operating Current Jumpers 9 Remove the target and sensing current and reset the target Figure 5 3 Target Indicator Test Setup...

Страница 44: ...6 until the Active Pickup LED turns red The applied current should be no greater than 0 11 Aac 3 Decrease the applied current until the Active Pickup LED changes from red to green and then off 4 Set T...

Страница 45: ...tantaneous Overcurrent A 50 A Pickup 1 Connect and configure the relay for 50 A pickup 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...

Страница 46: ...haracteristic c Set TIME DIAL to 0 0 d Set CURVE to S e Set TIME PICKUP to 3 18 f Set INST PICKUP 50 A to 18 0 g Set INST PICKUP 50 B accessed at the top side of the assembly to 20 0 4 Aac 2 Apply and...

Страница 47: ...ime target operates at the level of current determined by the Target Operating Current Jumpers The Target Operating Current Jumpers are located on the circuit board and identified as J1 and J2 J1 sets...

Страница 48: ...t INST PICKUP 50 B accessed at the top side of the assembly at 20 0 4 Aac 2 Apply 0 18 Aac to terminals 5 and 6 0 18 Aac provides relay operating power but is below the pickup threshold 3 Connect a ju...

Страница 49: ...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...

Страница 50: ...ii BE1 50 51B 237 238 Characteristic Curves 9252000899 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...

Страница 51: ...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...

Страница 52: ...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...

Страница 53: ...teristic Curves Figures A 2 through A 15 illustrate the BE1 50 51B 237 and BE1 50 51B 238 time overcurrent characteristic curves Figure A 2 Short Inverse S Time Characteristic Curve SW3 3 Off Similar...

Страница 54: ...A 4 BE1 50 51B 237 238 Characteristic Curves 9252000899 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...

Страница 55: ...9252000899 Rev BE1 50 51B 237 238 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...

Страница 56: ...A 6 BE1 50 51B 237 238 Characteristic Curves 9252000899 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...

Страница 57: ...9252000899 Rev BE1 50 51B 237 238 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...

Страница 58: ...A 8 BE1 50 51B 237 238 Characteristic Curves 9252000899 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...

Страница 59: ...252000899 Rev BE1 50 51B 237 238 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...

Страница 60: ...A 10 BE1 50 51B 237 238 Characteristic Curves 9252000899 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...

Страница 61: ...9252000899 Rev BE1 50 51B 237 238 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...

Страница 62: ...A 12 BE1 50 51B 237 238 Characteristic Curves 9252000899 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...

Страница 63: ...9252000899 Rev BE1 50 51B 237 238 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...

Страница 64: ...A 14 BE1 50 51B 237 238 Characteristic Curves 9252000899 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...

Страница 65: ...9252000899 Rev BE1 50 51B 237 238 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...

Страница 66: ...16 BE1 50 51B 237 238 Characteristic Curves 9252000899 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...

Страница 67: ...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 237 and B...

Страница 68: ...50 51B 237 238 Characteristic Curves 9252000899 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...

Страница 69: ...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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