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Basler BE1-50B-230 Instruction Manual

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INSTRUCTION MANUAL
FOR
OVERCURRENT RELAYS
BE1-50/51B-230 and BE1-50/51B-234
Publication: 9252000894
Revision: D
05/08

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  • Page 1 INSTRUCTION MANUAL OVERCURRENT RELAYS BE1-50/51B-230 and BE1-50/51B-234 Publication: 9252000894 Revision: D 05/08...
  • Page 3 INTRODUCTION This instruction manual provides information about the operation and installation of the BE1-50/51B-230 and BE1-50/51B-234 Overcurrent Relays. To accomplish this, the following information is provided: • General Information and Specifications • Controls and Indicators • Functional Description • Installation and Maintenance •...
  • Page 4 May 2008 CONFIDENTIAL INFORMATION of Basler Electric, Highland Illinois, USA. It is loaned for confidential use, subject to return on request, and with the mutual understanding that it will not be used in any manner detrimental to the interest of Basler Electric.
  • Page 5 REVISION HISTORY The following information provides a historical summary of the changes made to this instruction manual (9252000894). Revisions are listed in reverse chronological order. Manual Revision and Date Change • D, 05/08 Updated Figures 2-2, 2-3, and 2-4 to show new layout of SW3. •...
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  • Page 7 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 A • CHARACTERISTIC CURVES..................A-1 9252000894 Rev D BE1-50/51B-230/-234 Introduction...
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  • Page 9: Table Of Contents

    SECTION 1 • GENERAL INFORMATION TABLE OF CONTENTS SECTION 1 • GENERAL INFORMATION ....................1-1 INTRODUCTION............................ 1-1 FEATURES ............................1-1 Advantages............................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 ........................
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  • Page 11 SECTION 1 • GENERAL INFORMATION INTRODUCTION BE1-50/51B-230 and BE1-50/51B-234 relays provide non-directional, single-phase or ground overcurrent protection and are direct replacements for General Electric IAC66K relays. The BE1-50/51B-230 has a 5 ampere current sensing input. The BE1-50/51B-234 has a 1 ampere current sensing input. The BE1- 50/51B-230 and BE1-50/51B-234 relays are supplied as draw-out assemblies that plug directly into existing cases for IAC66K relays.

  • Page 12: Time Overcurrent (51) Element

    SPECIFICATIONS BE1-50/51B-230 and BE1-50/51B-234 electrical and physical specifications are listed in the following paragraphs. Time Overcurrent (51) Element BE1-50/51B-230 Pickup Setting Range: 0.5 to 15.9 Aac Setting Increment: 0.1 Aac Sum of ±2% and ±25 mAac Accuracy: BE1-50/51B-234 Pickup Setting Range: 0.1 to 3.18 Aac Setting Increment: 0.02 Aac...

  • Page 13: Instantaneous Overcurrent B (50-B) Element

    Instantaneous Overcurrent B (50-B) Element BE1-50/51B-230 Pickup Setting Range: 1 to 15.9 Aac Setting increment: 0.1 Aac Sum of ±2% and ±25 mAac Accuracy: BE1-50/51B-234 Pickup Setting Range: 0.2 to 3.18 Aac Setting increment: 0.02 Aac Sum of ±2% and ±5 mAac Accuracy: Dropout Dropout occurs at 95% of pickup value.

  • Page 14: Figure 1-2. Current Sensing Input Derating Curve (Be1-50/51B-234)

    BE1-50/51B-234 Continuous Rating: 2.8 Aac∗ 1 Second Rating: 80 Aac ∗ Continuous rating is 2.8 Aac for temperatures up to 45°C. See Figure 1-2 for derating curve. Continuous Current Current Sensing Input Ambient Temperature (C) Figure 1-2. Current Sensing Input Derating Curve (BE1-50/51B-234) BE1-50/51B-230 Burden Figure 1-3 illustrates the current sensing input burden characteristic.

  • Page 15: Frequency Response

    BE1-50/51B-234 Burden Figure 1-4 illustrates the current sensing input burden characteristic. 57.0 Ω At 0.1 Aac: 6.9 Ω At 1.0 Aac: BE1-50/51B-234 CT Burden Input Current (Amps) 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 causes <0.5% change in the current required for pickup.

  • Page 16: Harmonic Rejection

    Figure 1-5. Harmonic Rejection Target Indicators A gravity-latched, manually-reset, current-operated target indicator is 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.

  • Page 17: Output Contacts

    Output Contacts Each protective element (51, 50-A, and 50-B) is equipped with a set of Form A contacts rated for tripping duty. Resistive Ratings 120/240 Vac: Make 30 amperes for 0.2 seconds, carry 7 amperes for 2 minutes, 3 amperes continuously, and break 5 amperes. 125/250 Vdc: Make 30 amperes for 0.2 seconds, carry 7 amperes for 2 minutes, 3 amperes continuously, and break 0.3 ampere.
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  • Page 19 SECTION 2 • CONTROLS AND INDICATORS TABLE OF CONTENTS SECTION 2 • CONTROLS AND INDICATORS ..................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 Figure 2-3.
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  • Page 21: Section 2 • Controls And Indicators

    SECTION 2 • CONTROLS AND INDICATORS INTRODUCTION BE1-50/51B-230 and BE1-50/51B-234 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 Table 2-1. The locators and descriptions of Table 2-1 correspond to the locators shown in Figure 2-1.

  • Page 22: Front Panel Controls And Indicators

    Table 2-1. Front Panel Controls and Indicators Locator Description Time Overcurrent Manual Trip Jacks. These jacks are used to manually trip a breaker controlled by the 51 trip output contacts. This is achieved by plugging a jumper wire, terminated with two standard 0.08 inch diameter phone-tip plugs, into the two jacks. Active/Pickup Indicator.
  • Page 23 CIRCUIT BOARD CONTROLS Circuit board 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 descriptions of Table 2-2 correspond to the locators shown in Figure 2-2. Figure 2-2.

  • Page 24: Circuit Board Controls

    Table 2-2. Circuit Board Controls Locator Description Target Operating Current Jumpers. Two user-adjustable jumpers control the range of trip circuit current required to operate the time overcurrent (51) and instantaneous overcurrent A (50-A) target indicators. Jumper J1 sets the minimum current range for the 50-A target indicator and J2 sets the minimum current range for the 51 target indicator.
  • Page 25 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) 9252000894 Rev D BE1-50/51B-230/-234 Controls and Indicators...
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  • Page 27: Figures

    SECTION 3 • FUNCTIONAL DESCRIPTION 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 Microprocessor ........................... 3-1 Outputs ...............................
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  • Page 29 SECTION 3 • FUNCTIONAL DESCRIPTION INTRODUCTION This section illustrates and describes the functional capabilities of the BE1-50/51B-230 and BE1-50/51B- 234 relays. FUNCTION BLOCK DESCRIPTIONS The function blocks of the BE1-50/51B-230 and BE1-50/51B-234 relays are illustrated in Figure 3-1 and described in the following paragraphs. Figure 3-1.
  • Page 30 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.

  • Page 31: Table Of Contents

    SECTION 4 • INSTALLATION TABLE OF CONTENTS 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 Connections......................4-2 Figure 4-2. Typical DC Connections......................4-3 Figure 4-3.
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  • Page 33: Section 4 • Installation

    SECTION 4 • INSTALLATION INTRODUCTION BE1-50/51B-230 relays are direct replacements for General Electric IAC66K relays with 5 Aac nominal current sensing. BE1-50/51B-234 relays are direct replacements for General Electric IAC66K relays with 1 Aac nominal current sensing. The BE1-50/51B-230 and BE1-50/51B-234 relays are supplied as draw- out assemblies that plug directly into existing cases for IAC66K relays.

  • Page 34: Connections

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

  • Page 35: Application Coordination

    Figure 4-2. Typical DC Connections APPLICATION COORDINATION In a typical application coordination scheme, a BE1-50/51B-230 or BE1-50/51B-234 is used to provide primary protection for a radial distribution feeder. An electromechanical overcurrent relay with extremely inverse timing provides protection for the transformer and bus. To improve coordination with the electromechanical relay, the BE1-50/51B-230 or BE1-50/51B-234 is configured with the following settings: •...

  • Page 36: Maintenance

    BE1-50/51B-230 and BE1-50/51B-234 relays require no preventative maintenance other than periodic checking of relay connections to make sure that they are clean and tight. If the relay fails to function properly, contact the Technical Sales Support department of Basler Electric. STORAGE This device contains long-life aluminum electrolytic capacitors.
  • Page 37 SECTION 5 • TESTING TABLE OF CONTENTS SECTION 5 • TESTING ..........................5-1 INTRODUCTION............................ 5-1 DIELECTRIC TEST ..........................5-1 TEST PROCEDURES ........................... 5-1 Model BE1-50/51B-230 (Five Ampere Sensing Input)............... 5-1 Time Overcurrent (51) Pickup......................5-1 Time Dial............................5-2 Integrating Reset ..........................5-2 Instantaneous Overcurrent A (50-A) Pickup...................
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  • Page 39: Section 5 • Testing

    SECTION 5 • TESTING INTRODUCTION Proper relay operation may be confirmed by performing the test procedures in this section. DIELECTRIC TEST In accordance with IEC 255-5 and IEEE C37.90-1989, one-minute dielectric (high potential) tests may be performed as follows: All circuits to ground: 2,828 Vdc or 2,000 Vac Input to output circuits: 2,828 Vdc or 2,000 Vac...

  • Page 40: Time Dial

    Set INST PICKUP (50-A) to 90. g. Set INST PICKUP (50-B) (accessed at the top side of the assembly) to F0 (15.0 Aac). 2. Apply and increase current to terminals 5 and 6 until the Active/Pickup LED turns red. The applied current should be no greater than 0.55 Aac.

  • Page 41: Instantaneous Overcurrent A (50-A) Pickup

    Figure 5-1. 51 Pickup, Time Dial, and Integrating Reset Test Setup Instantaneous Overcurrent A (50-A) Pickup 1. Connect and configure the relay for 50-A pickup testing: a. Connect the test setup shown in Figure 5-2. 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 curves)

  • Page 42: Instantaneous Overcurrent B (50-B) Pickup

    Figure 5-2. 50-A Pickup Test Setup Instantaneous Overcurrent B (50-B) Pickup 1. Connect and configure the relay for 50-B pickup testing: a. Connect the test setup shown in Figure 5-3. 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 curves) SW3-4 = ON (integrating reset characteristic)

  • Page 43: Target Indicators

    Figure 5-3. 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 5-4. 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 for the 50-A element) SW3-3 = ON (GE IAC type characteristic curves) SW3-4 = ON (integrating reset characteristic)

  • Page 44: Manual Trip

    Figure 5-4. Target Indicator Test Setup Manual Trip 1. Configure the relay for manual trip testing: a. Connect the test setup as shown in Figure 5-1. 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 curves) SW3-4 = ON (integrating reset characteristic)

  • Page 45: Model Be1-50/51B-234 (One Ampere Sensing Input)

    Model BE1-50/51B-234 (One 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 5-5. 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 curves) SW3-4 = ON (integrating reset characteristic)

  • Page 46: Instantaneous Overcurrent A (50-A) Pickup

    d. Set CURVE to V. e. Set TIME PICKUP to 0.2. Set INST PICKUP (50-A) to 18.0. g. Set INST PICKUP (50-B) (accessed at the top side of the assembly) to F0 (3.0 Aac). 2. Apply 0.8 Aac to terminals 5 and 6. After the unit trips, remove the applied current for 29 ±0.25 seconds, then reapply the current (0.8 Aac).

  • Page 47: Instantaneous Overcurrent B (50-B) Pickup

    Figure 5-6. 50-A Pickup Test Setup Instantaneous Overcurrent B (50-B) Pickup 1. Connect and configure the relay for 50-B pickup testing: a. Connect the test setup shown in Figure 5-7. 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 curves) SW3-4 = ON (integrating reset characteristic)

  • Page 48: Target Indicators

    Figure 5-7. 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 5-8. 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 curves) SW3-4 = ON (integrating reset characteristic)

  • Page 49: Manual Trip

    Figure 5-8. Target Indicator Test Setup Manual Trip 1. Configure the relay for manual trip testing: a. Connect the test setup as 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 SW3-2 = OFF (no additional time delay for the 50-A element) SW3-3 = ON (GE IAC type characteristic curves) SW3-4 = ON (integrating reset characteristic)
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  • Page 51 APPENDIX A • CHARACTERISTIC CURVES TABLE OF CONTENTS APPENDIX A • CHARACTERISTIC CURVES..................A-1 INTRODUCTION............................A-1 INSTANTANEOUS OVERCURRENT CHARACTERISTICS ..............A-1 Timing..............................A-1 Pickup..............................A-1 TIME OVERCURRENT CHARACTERISTICS ..................A-1 Inverse Time Functions ........................A-2 Characteristic Curve Groups ......................A-2 Timing Accuracy..........................A-17 Fixed Time Characteristic.........................A-17 INTEGRATING TIME RESET CHARACTERISTIC ................A-17 Figures Figure A-1.
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  • Page 53 APPENDIX A • CHARACTERISTIC CURVES INTRODUCTION This appendix describes and defines the instantaneous overcurrent, time overcurrent, and integrating time reset characteristics of the BE1-50/51B-230 and BE1-50/51B-234 relays. INSTANTANEOUS OVERCURRENT CHARACTERISTICS Timing The instantaneous characteristic curves of the BE1-50/51B-230 and BE1-50/51B-234 relays are similar to standard electromechanical instantaneous units.
  • Page 54 Inverse Time Functions Characteristic curves for the inverse and definite time functions are defined by the following equation: − Where: = time to trip in seconds D = time dial setting M = multiple of pickup setting A, B, C, N, K = constants for the particular curve Characteristic Curve Groups Either GE IAC or ABB characteristic curve groups are selected through switch SW3-3.
  • Page 55 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 Characteristic Curve (SW3-3 Off, Similar to ABB CO-2) 9252000894 Rev D BE1-50/51B-230/-234 Characteristic Curves...
  • Page 56 Figure A-3. Long Inverse (L) Time Characteristic Curve (SW3-3 Off, Similar to ABB CO-5) BE1-50/51B-230/-234 Characteristic Curves 9252000894 Rev D...
  • Page 57 Figure A-4. Definite Time (D) Time Characteristic Curve (Similar to ABB CO-6) 9252000894 Rev D BE1-50/51B-230/-234 Characteristic Curves...
  • Page 58 Figure A-5. Moderately Inverse (M) Time Characteristic Curve (Similar to ABB CO-7) BE1-50/51B-230/-234 Characteristic Curves 9252000894 Rev D...
  • Page 59 Figure A-6. Inverse (I) Time Characteristic Curve (SW3-3 Off, Similar to ABB CO-8) 9252000894 Rev D BE1-50/51B-230/-234 Characteristic Curves...
  • Page 60 Figure A-7. Very Inverse (V) Time Characteristic Curve (SW3-3 Off, Similar to ABB CO-9) BE1-50/51B-230/-234 Characteristic Curves 9252000894 Rev D...
  • Page 61 Figure A-8. Extremely Inverse (E) Time Characteristic Curve (SW3-3 Off, Similar to ABB CO-11) 9252000894 Rev D BE1-50/51B-230/-234 Characteristic Curves...
  • Page 62 Figure A-9. BS142 Very Inverse (BS142-B) Time Characteristic Curve A-10 BE1-50/51B-230/-234 Characteristic Curves 9252000894 Rev D...
  • Page 63 Figure A-10. BS142 Extremely Inverse (BS142-C) Time Characteristic Curve 9252000894 Rev D BE1-50/51B-230/-234 Characteristic Curves A-11...
  • Page 64 Figure A-11. Short Inverse (S2) Time Characteristic Curve (SW3-3 On, Similar to GE IAC 55) A-12 BE1-50/51B-230/-234 Characteristic Curves 9252000894 Rev D...
  • Page 65 Figure A-12. Long Inverse (L2) Time Characteristic Curve (SW3-3 On, Similar to GE IAC 66) 9252000894 Rev D BE1-50/51B-230/-234 Characteristic Curves A-13...
  • Page 66 Figure A-13. Inverse (I2) Time Characteristic Curve (SW3-3 On, Similar to GE IAC 51) A-14 BE1-50/51B-230/-234 Characteristic Curves 9252000894 Rev D...
  • Page 67 Figure A-14. Very Inverse (V2) Time Characteristic Curve (SW3-3 On, Similar to GE IAC 53) 9252000894 Rev D BE1-50/51B-230/-234 Characteristic Curves A-15...
  • Page 68 Figure A-15. Extremely Inverse (E2) Time Characteristic Curve (SW3-3 On, Similar to GE IAC 77) A-16 BE1-50/51B-230/-234 Characteristic Curves 9252000894 Rev D...
  • Page 69 Timing Accuracy Timing accuracy is the sum of ±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. Measurement accuracy of the multiple of tap is the sum of ±2%, ±25 mA for the BE1-50/51B-230 and ±2%, ±5 mA for the BE1-50/51B-234.
  • Page 70 Instantaneous Reset Reset occurs within 16 ms of when the current decreases to 95% of the pickup level. A-18 BE1-50/51B-230/-234 Characteristic Curves 9252000894 Rev D...
  • Page 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...

This manual is also suitable for:

Be1-51b-230Be1-50b-234Be1-51b-234

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