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3-2 BE1-50/51B-230/-234

Functional Description

9252000894 Rev D

RC time constant. This provides information from the integrating reset function even when power has
been entirely removed.

The microprocessor defines the relay operating parameters based on inputs received from the Time
Overcurrent Time Dial Selector, Curve Selector, and four-position slide switch. The microprocessor
determines the level of sensed current by a digital signal supplied by the analog-to-digital converter.
Sensed current that exceeds the setting of the Time Overcurrent Pickup Selector switches causes the
Active/Pickup LED color to change from green to red and the 51 Trip output contacts to close in
accordance with the time characteristic equation. Sensed current exceeding the Instantaneous
Overcurrent A Pickup selector switch setting causes the 50-A Trip output contacts to close. Likewise,
sensed current exceeding the Instantaneous Overcurrent B Pickup selector switch setting causes the 50-
B Trip output contacts to close.

Outputs

Each protective element (time overcurrent (51), instantaneous overcurrent A (50-A), and instantaneous
overcurrent B (50-B)) is equipped with a set of normally-open contacts rated for 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 Overcurrent Manual Trip
jacks. (Manual trip jacks are not provided for the system circuit breaker controlled by the 50-B output
contacts.) Current flow in a trip circuit is indicated by operation of the corresponding target. The targets
will not operate without adequate relay operating power.

Target Indicators

Gravity-latched, manually-reset, current-operated target indicators are provided for the time overcurrent
(51) trip output and the instantaneous overcurrent A (50-A) trip output. A target indicator is not provided
for the 50-B trip output. The level of trip circuit current required to operate each target is individually
controlled by a circuit board jumper. The minimum operating current range can be set for 80 to 200
milliamperes or 0.9 to 2.25 amperes. See Section 2,

Controls and Indicators

for jumper locations and

function assignments.

CAUTION

Trip circuit voltage is present at the front panel trip jacks. When shorting the trip
jacks, use insulated jumpers to avoid contact with these voltages.

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Содержание BE1-50B-230

Страница 1: ...INSTRUCTION MANUAL FOR OVERCURRENT RELAYS BE1 50 51B 230 and BE1 50 51B 234 Publication 9252000894 Revision D 05 08...

Страница 2: ......

Страница 3: ...Controls and Indicators Functional Description Installation and Maintenance Testing WARNING To avoid personal injury or equipment damage only qualified personnel should perform the procedures in this...

Страница 4: ...operation The availability and design of all features and options are subject to modification without notice Should further information be required contact Basler Electric BASLER ELECTRIC ROUTE 143 BO...

Страница 5: ...SW3 Minor corrections in Section 5 Testing C 03 08 Updated front panel drawings B 11 07 Added 9252000234 1 amp relay A 12 06 Revised target current ranges stated throughout the manual Clarified conti...

Страница 6: ...iv BE1 50 51B 230 234 Introduction 9252000894 Rev D This page intentionally left blank...

Страница 7: ...230 234 Introduction v CONTENTS 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...

Страница 8: ...vi BE1 50 51B 230 234 Introduction 9252000894 Rev D This page intentionally left blank...

Страница 9: ...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 7 Type Tests 1 7 Agency Recognition 1 7 Environment...

Страница 10: ...ii BE1 50 51B 230 234 General Information 9252000894 Rev D This page intentionally left blank...

Страница 11: ...dependent time and instantaneous elements A secure method to manually trip the breaker at the relay front panel Direct reading front panel controls Minimum pickup setting for safety during installatio...

Страница 12: ...aracteristic Timing Accuracy 1 cycle 2 This accuracy applies to the range of 1 3 to 40 times tap and is for a given measured multiple of tap Fixed Timing Setting Range 0 1 to 9 9 s Setting Increment 0...

Страница 13: ...at no intentional delay Appendix A Characteristic Curves illustrates the characteristic curve for the 50 A and 50 B elements Reset Characteristic Resets within 16 ms of when sensed current decreases...

Страница 14: ...nsing Input 0 0 4 0 8 1 2 1 6 2 2 4 2 8 3 2 40 20 0 20 40 60 Ambient Temperature C Current Aac Figure 1 2 Current Sensing Input Derating Curve BE1 50 51B 234 BE1 50 51B 230 Burden Figure 1 3 illustrat...

Страница 15: ...0 20 40 60 80 100 120 140 0 2 4 6 8 10 Input Current Amps Burden in VA rms Figure 1 4 Current Sensing Input Burden BE1 50 51B 234 Frequency Response A change of 5 Hz from the nominal 50 60 Hz current...

Страница 16: ...rget indicator is not provided for the 50 B trip output The level of trip circuit current required to operate each target is individually controlled by a circuit board jumper See Section 2 Controls an...

Страница 17: ...tings 120 240 Vac 125 250 Vdc Make and carry 30 amperes for 0 2 seconds carry 7 amperes for 2 minutes 3 amperes continuously and break 0 3 ampere L R 0 04 Terminal Assignments 51 Element 1 2 50 A Elem...

Страница 18: ...1 8 BE1 50 51B 230 234 General Information 9252000894 Rev D This page intentionally left blank...

Страница 19: ...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 Figure 2 3 View of 50 B Pickup Selector Switches...

Страница 20: ...ii BE1 50 51B 230 234 Controls and Indicators 9252000894 Rev D This page intentionally left blank...

Страница 21: ...relay controls and indicators 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 Ta...

Страница 22: ...NOTE When testing time overcurrent functions instantaneous pickup settings of 00 will affect the calibration of the time functions Time pickup settings of 00 also affect instantaneous functions F Tar...

Страница 23: ...d controls consist of two rotary 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 descrip...

Страница 24: ...Instantaneous Overcurrent B 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 switch...

Страница 25: ...9252000894 Rev D BE1 50 51B 230 234 Controls and Indicators 2 5 Figure 2 3 View of 50 B Pickup Selector Switches BE1 50 51B 230 Figure 2 4 View of 50 B Pickup Selector Switches BE1 50 51B 234...

Страница 26: ...2 6 BE1 50 51B 230 234 Controls and Indicators 9252000894 Rev D This page intentionally left blank...

Страница 27: ...PTION TABLE OF CONTENTS SECTION 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 Microproce...

Страница 28: ...ii BE1 50 51B 230 234 Functional Description 9252000894 Rev D This page intentionally left blank...

Страница 29: ...nal Conditioning Current from the signal CT is rectified and applied to three independent sets of scaling resistors controlled by the Time Overcurrent 51 Instantaneous Overcurrent A 50 A and Instantan...

Страница 30: ...nd instantaneous overcurrent B 50 B is equipped with a set of normally open contacts rated for tripping duty A system circuit breaker controlled by the 51 or 50 A output contacts can be manually tripp...

Страница 31: ...ENTS SECTION 4 INSTALLATION 4 1 INTRODUCTION 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 Connection...

Страница 32: ...ii BE1 50 51B 230 234 Installation 9252000894 Rev D This page intentionally left blank...

Страница 33: ...racteristics J1 pins 2 3 50 A minimum target operating current of 80 to 200 mA J2 pins 1 2 51 minimum target operating current of 0 9 to 2 25 A INSTALLATION The relay must be configured with the appro...

Страница 34: ...4 2 BE1 50 51B 230 234 Installation 9252000894 Rev D CONNECTIONS Typical ac and dc connections are shown in Figures 4 1 and 4 2 Figure 4 1 Typical AC Connections...

Страница 35: ...is configured with the following settings Integrating reset enabled SW3 4 ON Time characteristic curve E extremely inverse selected ABB type curves selected SW3 3 OFF Time dial set at 2 0 The feeder r...

Страница 36: ...nd has not gone to zero TC value TA because rewind has not gone to zero Figure 4 3 Coordination Timing Diagram MAINTENANCE BE1 50 51B 230 and BE1 50 51B 234 relays require no preventative maintenance...

Страница 37: ...51B 234 One Ampere Sensing Input 5 7 Time Overcurrent 51 Pickup 5 7 Time Dial 5 7 Integrating Reset 5 7 Instantaneous Overcurrent A 50 A Pickup 5 8 Instantaneous Overcurrent B 50 B Pickup 5 9 Target...

Страница 38: ...ii BE1 50 51B 230 234 Testing 9252000894 Rev D This page intentionally left blank...

Страница 39: ...ith a range of 0 to 3 0 Aac target operation Timer or counter Model BE1 50 51B 230 Five Ampere Sensing Input Time Overcurrent 51 Pickup 1 Connect and configure the relay for 51 pickup testing a Connec...

Страница 40: ...CKUP 50 B accessed at the top side of the assembly to F0 15 0 Aac 2 Prepare to apply 1 5 Aac to terminals 5 and 6 and record the elapsed time from when current is applied until the 51 output contacts...

Страница 41: ...W3 4 ON integrating reset characteristic c Set TIME DIAL to 0 0 d Set CURVE to S e Set TIME PICKUP to 15 0 f Set INST PICKUP 50 A to 02 g Set INST PICKUP 50 B accessed at the top side of the assembly...

Страница 42: ...reset characteristic c Set TIME DIAL to 0 0 d Set CURVE to S e Set TIME PICKUP to 15 0 f Set INST PICKUP 50 A to 90 g Set INST PICKUP 50 B accessed at the top side of the assembly to 20 2 0 Aac 2 App...

Страница 43: ...source and verify that the Time 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 ide...

Страница 44: ...INST PICKUP 50 A to 90 g Set INST PICKUP 50 B accessed at the top side of the assembly to 20 2 0 Aac 2 Apply 0 9 Aac to terminals 5 and 6 0 9 Aac provides relay operating power but is below the picku...

Страница 45: ...Connect and configure the relay for time dial testing a Connect the test setup shown in Figure 5 5 b Set circuit board switch SW3 as follows SW3 1 ON for 50 Hz operation or OFF for 60 Hz operation SW3...

Страница 46: ...5 6 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 for the 50 A element SW3 3 ON GE IAC type characteristic curve...

Страница 47: ...reset characteristic 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 Ap...

Страница 48: ...source and verify that the Time 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 ide...

Страница 49: ...NST PICKUP 50 A to 18 0 g Set 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 pic...

Страница 50: ...5 12 BE1 50 51B 230 234 Testing 9252000894 Rev D This page intentionally left blank...

Страница 51: ...Characteristic Curve SW3 3 Off 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 SW...

Страница 52: ...ii BE1 50 51B 230 234 Characteristic Curves 9252000894 Rev D This page intentionally left blank...

Страница 53: ...ntaneous A 50 A element can 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 n...

Страница 54: ...ABB CO 7 A 5 0 3022 0 12840 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...

Страница 55: ...acteristic Curves A 3 Characteristic Curves Figures A 2 through A 15 illustrate the BE1 50 51B 230 and BE1 50 51B 234 time overcurrent characteristic curves Figure A 2 Short Inverse S Time Characteris...

Страница 56: ...A 4 BE1 50 51B 230 234 Characteristic Curves 9252000894 Rev D Figure A 3 Long Inverse L Time Characteristic Curve SW3 3 Off Similar to ABB CO 5...

Страница 57: ...9252000894 Rev D BE1 50 51B 230 234 Characteristic Curves A 5 Figure A 4 Definite Time D Time Characteristic Curve Similar to ABB CO 6...

Страница 58: ...A 6 BE1 50 51B 230 234 Characteristic Curves 9252000894 Rev D Figure A 5 Moderately Inverse M Time Characteristic Curve Similar to ABB CO 7...

Страница 59: ...9252000894 Rev D BE1 50 51B 230 234 Characteristic Curves A 7 Figure A 6 Inverse I Time Characteristic Curve SW3 3 Off Similar to ABB CO 8...

Страница 60: ...A 8 BE1 50 51B 230 234 Characteristic Curves 9252000894 Rev D Figure A 7 Very Inverse V Time Characteristic Curve SW3 3 Off Similar to ABB CO 9...

Страница 61: ...9252000894 Rev D BE1 50 51B 230 234 Characteristic Curves A 9 Figure A 8 Extremely Inverse E Time Characteristic Curve SW3 3 Off Similar to ABB CO 11...

Страница 62: ...A 10 BE1 50 51B 230 234 Characteristic Curves 9252000894 Rev D Figure A 9 BS142 Very Inverse BS142 B Time Characteristic Curve...

Страница 63: ...9252000894 Rev D BE1 50 51B 230 234 Characteristic Curves A 11 Figure A 10 BS142 Extremely Inverse BS142 C Time Characteristic Curve...

Страница 64: ...A 12 BE1 50 51B 230 234 Characteristic Curves 9252000894 Rev D Figure A 11 Short Inverse S2 Time Characteristic Curve SW3 3 On Similar to GE IAC 55...

Страница 65: ...9252000894 Rev D BE1 50 51B 230 234 Characteristic Curves A 13 Figure A 12 Long Inverse L2 Time Characteristic Curve SW3 3 On Similar to GE IAC 66...

Страница 66: ...A 14 BE1 50 51B 230 234 Characteristic Curves 9252000894 Rev D Figure A 13 Inverse I2 Time Characteristic Curve SW3 3 On Similar to GE IAC 51...

Страница 67: ...9252000894 Rev D BE1 50 51B 230 234 Characteristic Curves A 15 Figure A 14 Very Inverse V2 Time Characteristic Curve SW3 3 On Similar to GE IAC 53...

Страница 68: ...A 16 BE1 50 51B 230 234 Characteristic Curves 9252000894 Rev D Figure A 15 Extremely Inverse E2 Time Characteristic Curve SW3 3 On Similar to GE IAC 77...

Страница 69: ...IC The relay can be user configured for integrating or instantaneous type reset Integrating reset simulates the disk reset of electromechanical relays and begins when the current decreases below 95 of...

Страница 70: ...A 18 BE1 50 51B 230 234 Characteristic Curves 9252000894 Rev D Instantaneous Reset Reset occurs within 16 ms of when the current decreases to 95 of the pickup level...

Страница 71: ...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...

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