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Basler BE1-67N Instruction Manual

Ground directional overcurrent relay
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INSTRUCTION MANUAL
FOR
GROUND DIRECTIONAL
OVERCURRENT RELAY
BE1-67N
Publication: 9190700990
Revision: F
08/07

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Summary of Contents for Basler BE1-67N

  • Page 1 INSTRUCTION MANUAL GROUND DIRECTIONAL OVERCURRENT RELAY BE1-67N Publication: 9190700990 Revision: F 08/07...
  • Page 3 INTRODUCTION This instruction manual provides information about the operation and installation of the BE1-67N Ground Directional Overcurrent Relay. To accomplish this, the following information is provided: • General Information and Specifications • Controls and Indicators • Functional Description • Installation •...
  • Page 4 August 2007 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 the BE1-67N instruction manual (9190700990). Revisions are listed in reverse chronological order. Manual Revision and Date Change • F, 08/07 Moved content of Section 6, Maintenance to Section 4.
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  • Page 7: Table Of Contents

    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 APPENDIX B • POLAR GRAPH FORMS ....................B-1 9190700990 Rev F BE1-67N Introduction...
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  • Page 9 Figure 1-1. Zero Sequence Polarizing (Two-Winding Transformer) ............1-1 Figure 1-2. Zero Sequence Polarizing (Three-Winding Transformer)............1-2 Figure 1-3. Style Number Identification Chart ................... 1-4 Tables Table 1-1. Maximum Operate Times ......................1-6 Table 1-2. Power Supply Types and Ratings .................... 1-6 9190700990 Rev F BE1-67N General Information...
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  • Page 11: Dual Zero Sequence Current And Voltage

    SECTION 1 • GENERAL INFORMATION PURPOSE BE1-67N Ground Directional Overcurrent Relays provide ground fault protection for transmission and distribution lines by sensing the flow of ground (zero sequence) current into or out of protected zones. Zero sequence quantities provide a secure reference for the directional element because these quantities are defined by the total source impedance of the power system.

  • Page 12: Output Contacts

    Dual polarization is achieved using a polarizing signal that is the phasor sum of the current and voltage polarizing signals. OUTPUT CONTACTS BE1-67N relays have the following output contacts: relay status alarm (relay fail), tripping, and auxiliary (optional). Relay Status Alarm A relay status alarm output contact (relay fail) indicates that proper voltages are not being supplied to the internal relay circuitry or that the microprocessor self-diagnostics has detected an error.

  • Page 13: Auxiliary

    POWER SUPPLY OPTIONS Various power supply options are available to allow the BE1-67N relay to be used with standard supply voltages. See the style chart for details. POWER-UP DELAY A power-up delay timer is initiated upon application of control power to the relay to prevent undesired contact transitions when sensing signals are present.

  • Page 14: Specifications

    Figure 1-3. Style Number Identification Chart SPECIFICATIONS BE1-67N relays have the following features and capabilities. Current Sensing (I ) Inputs Pickup Adjustment Range Range 1 and 2: 0.25 to 6.0 Aac Range 3 and 4: 0.05 to 1.2 Aac Current Rating...

  • Page 15: Polarizing Current (I )

    Repeatability of pickup setting (combination of tap selector switch and intertap adjustment) is ±2%. Response Time Accuracy Within ±5% of the time value indicated on the characteristic time curve or 25 ms, whichever is greater. 9190700990 Rev F BE1-67N General Information...

  • Page 16: Instantaneous Overcurrent

    0.3 Adc 500 Vdc: Make and carry 15 Adc for 0.2 s, carry 7 Adc continuously, and break 0.3 Adc Inductive Ratings 120 Vac, 125 Vdc, 250 Vdc: Break 0.3 A (L/R = 0.04) BE1-67N General Information 9190700990 Rev F...

  • Page 17: Target Indicator

    Russia. Issued by accredited certification body POCC RU.0001.11ME05. Physical Temperature Operating: –40 to 70°C (–40 to 158°F) Storage: –65 to 90°C (–85 to 194°F) Dimensions See Section 4, Installation. Weight Maximum: 18 lb (8.2 kg) 9190700990 Rev F BE1-67N General Information...
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  • Page 19: Section 2 • Controls And Indicators

    Figure 2-3. Auxiliary Relay Select Switch Location ................... 2-4 Tables Table 2-1. Front Panel Controls and Indicators..................2-2 Table 2-2. Analog and Digital Circuit Board Controls................2-3 Table 2-3. Auxiliary Relay Select Switch Selections ................. 2-4 9190700990 Rev F BE1-67N Controls and Indicators...
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  • Page 21 SECTION 2 • CONTROLS AND INDICATORS INTRODUCTION BE1-67N controls and indicators are located on the front panel and Analog, Digital, and Mother circuit board assemblies. FRONT PANEL CONTROLS AND INDICATORS Front panel HMI components 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 Directional Timing Inhibit Indicator. This amber LED lights when operation of the directional time overcurrent element is inhibited by the directional unit. Directional Instantaneous Inhibit Indicator. This amber LED lights when operation of the directional instantaneous overcurrent element is inhibited by the directional unit. BE1-67N Controls and Indicators 9190700990 Rev F...
  • Page 23 Normal position. Time Overcurrent Characteristic Curve Selector Switch (S6). This switch selects the characteristic curve to be used for the application. See Appendix A, Characteristic Curves for the curves available. 9190700990 Rev F BE1-67N Controls and Indicators...
  • Page 24 Table 2-3 lists each tripping output and the S1 position that causes the auxiliary output contact to operate in parallel with it. Table 2-3. Auxiliary Relay Select Switch Selections S1 Position Tripping Output S1-A Directional Instantaneous S1-B Time Overcurrent S1-C Non-Directional Instantaneous S1-D Not Used BE1-67N Controls and Indicators 9190700990 Rev F...

  • Page 25: Section 3 • Functional Description

    Table 3-2. Sensing Input Range and Setting for 1 Aac Secondary............3-2 Table 3-3. Sensing Input Range and Setting for 5 Aac Secondary............3-2 Table 3-4. Selection Considerations for Characteristic Curves..............3-4 Table 3-5. Instantaneous Overcurrent Element Operating Times............. 3-5 9190700990 Rev F BE1-67N Functional Description...
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  • Page 27: Section 3 • Functional Description

    SECTION 3 • FUNCTIONAL DESCRIPTION INTRODUCTION BE1-67N circuit functions are illustrated in the function block diagram of Figure 3-1 and described in the following paragraphs. Figure 3-1. Function Block Diagram CURRENT SENSING Internal current sensing transformers receive inputs from the 5 Aac (sensing input range 1 or 2) or 1 Aac (sensing input range 3 or 4) nominal secondary of standard transformers.

  • Page 28: Voltage Sensing

    The directional element determines when the monitored power system quantities have the proper phase relationship for tripping. The BE1-67N has three types of switch-selectable, directional capabilities: zero sequence current polarization, zero sequence voltage polarization, and dual zero sequence current and voltage polarization.

  • Page 29: Zero Sequence Current

    The characteristic angle is front-panel selectable for a line impedance angle of 0° or 60°. This is the angle between V and the directional characteristic. The closing band is centered on the directional characteristic (V in Figure 3-3 and shifted 60° in Figure 3-4). 9190700990 Rev F BE1-67N Functional Description...

  • Page 30: Dual Zero Sequence Current And Voltage Polarization

    The time overcurrent element has all of the standard time current characteristics listed in Table 3-4. These 12 time overcurrent characteristics are available to aid in the coordination of the BE1-67N with other protective devices in the system. Seven of the characteristics are standard in North America and five are compatible with British or IEC standard requirements.

  • Page 31: Output Contacts

    The ability to configure the functionality of the auxiliary output contacts enables the BE1-67N to be used in various carrier schemes. Information about setting S1 is provided in Section 2, Controls and Indicators.

  • Page 32: Push-To-Energize Output Switches

    Note that the front panel function targets (TIMED, INST 1, etc.) may be either internally or current operated. NOTE Prior to August 2007, BE1-67N target indicators consisted of magnetically latched, disc indicators. These mechanically latched target indicators have been replaced by the electronically latched LED targets in use today.

  • Page 33: Section 4 • Installation

    Figure 4-6. Case and Cover Dimensions, Projection Mounting, Side View ..........4-7 Figure 4-7. Typical Internal Connections....................4-9 Figure 4-8. Typical Sensing Input Connections (Two Winding Transformer).......... 4-10 Figure 4-9. Typical Sensing Input Connections (Three Winding Transformer)........4-10 Figure 4-10. Typical Output Connections....................4-11 9190700990 Rev F BE1-67N Installation...
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  • Page 35 SECTION 4 • INSTALLATION INTRODUCTION BE1-67N relays are shipped in sturdy cartons to prevent damage during transit. Upon receipt of a relay, check the model and style number against the requisition and packing list to see that they agree. Inspect the relay for shipping damage.
  • Page 36 Figure 4-1. Panel Cutting and Drilling Diagram, Semi-Flush Mounting BE1-67N Installation 9190700990 Rev F...
  • Page 37 Figure 4-2. Panel Drilling Diagram, Projection Mounting 9190700990 Rev F BE1-67N Installation...
  • Page 38 P0002-14 08-10-01 Figure 4-3. Cover Dimensions, Front View BE1-67N Installation 9190700990 Rev F...
  • Page 39 Figure 4-4. Case Dimensions, Rear View 9190700990 Rev F BE1-67N Installation...
  • Page 40 D2856-03 06-15-99 Figure 4-5. Case and Cover Dimensions, Semi-Flush Mounting, Side View BE1-67N Installation 9190700990 Rev F...
  • Page 41 PANEL CASE DETAIL A-A SHOWING THE ADDITION OF WASHERS OVER THE BOSS TO TIGHTEN THE RELAY AGAINST THE PANEL. D2856-21 06-15-99 Figure 4-6. Case and Cover Dimensions, Projection Mounting, Side View 9190700990 Rev F BE1-67N Installation...
  • Page 42 Incorrect wiring may result in damage to the relay. Except where noted, connections should be made with wire no smaller than 14 AWG. Internal relay connections are shown in Figure 4-7. Typical sensing input connections are shown in Figures 4-8 and 4-9. Typical output connections are shown in Figure 4-10. BE1-67N Installation 9190700990 Rev F...
  • Page 43 Figure 4-7. Typical Internal Connections 9190700990 Rev F BE1-67N Installation...
  • Page 44 Figure 4-8. Typical Sensing Input Connections (Two Winding Transformer) Figure 4-9. Typical Sensing Input Connections (Three Winding Transformer) 4-10 BE1-67N Installation 9190700990 Rev F...
  • Page 45 Figure 4-10. Typical Output Connections MAINTENANCE BE1-67N relays require no preventative maintenance other than a periodic operational check. If the relay fails to function properly, contact Technical Sales Support at Basler Electric to coordinate repairs. STORAGE This protective relay contains aluminum electrolytic capacitors which generally have a life expectancy in excess of 10 years at storage temperatures less than 40°C (104°F).
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  • Page 47: Section 5 • Testing

    Table 5-1. Pickup Values for Tap Selector Positions – Input Ranges 1 and 2 ......... 5-2 Table 5-2. Expected Timing at Five Times Pickup ..................5-5 Table 5-3 Pickup Values for Tap Selector Positions – Input Ranges 3 and 4 .......... 5-7 9190700990 Rev F BE1-67N Testing...
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  • Page 49: Section 5 • Testing

    TEST PROCEDURES FOR SENSING INPUT RANGES 1 AND 2 The following paragraphs contain procedures for verifying the operation and timing curves of a BE1-67N relay with sensing input range 1 or 2.
  • Page 50 (contacts at terminals 14 and 15 close). 5. Adjust the polarizing voltage source (V ) for 4 Vac at a 90° phase angle. The relay should remain in a tripped state. BE1-67N Testing 9190700990 Rev F...

  • Page 51: O As Polarizing Source (Char. Angle = 0°)

    –75° to +75°, ±5°. This plot defines the trip region as shown in Figure 5-2. ° Figure 5-2. Trip Zone Using V as Polarizing Source (Char. Angle = 0 9190700990 Rev F BE1-67N Testing...

  • Page 52: O As Polarizing Source (Char. Angle = 60°)

    Directional Timing Inhibit indicator turns off. When these results are illustrated on a polar plot, the graph should resemble a v-shaped line through the origin from –75° to +75°, ±5°. This plot defines the trip region as shown in Figure 5-4. BE1-67N Testing 9190700990 Rev F...
  • Page 53 0.770 s C, D, E, F 0.130 s 0.480 s ∗ Accuracy, with Tap Calibration control rotated fully clockwise, is ±5% or 50 milliseconds (whichever is greater) within values shown graphically on the published characteristic curves. 9190700990 Rev F BE1-67N Testing...
  • Page 54 5. Set the Time Dial at 10 and repeat step 4. TEST PROCEDURES FOR SENSING INPUT RANGES 3 AND 4 The following paragraphs contain procedures for verifying the operation and timing curves of a BE1-67N relay with sensing input range of 3 or 4.
  • Page 55 Directional Instantaneous Inhibit indicator lights. The V 7. Adjust the V phase angle for 0°. The directional instantaneous trip output contacts should close. 8. Reduce I to 0.35 Aac. 9. Confirm that the directional instantaneous trip output contacts open. 9190700990 Rev F BE1-67N Testing...
  • Page 56 2.) Monitor the time required for the output contact to change state and compare the time with the appropriate value in Table 5-2. 5. Set the Time Dial at 10 and repeat step 4. BE1-67N Testing 9190700990 Rev F...

  • Page 57: Appendix A • Characteristic Curves

    APPENDIX A • CHARACTERISTIC CURVES TABLE OF CONTENTS APPENDIX A • CHARACTERISTIC CURVES..................A-1 BE1-67N TIME OVERCURRENT CURVES..................A-1 Figures Figure A-1. Timing Type B1, Short Inverse (Switch Position 3) ..............A-2 Figure A-2. Timing Type B2, Long Inverse (Switch Position 1)..............A-3 Figure A-3. Timing Type B3, Definite Time (Switch Position 5) ..............A-4 Figure A-4.
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  • Page 59 APPENDIX A • CHARACTERISTIC CURVES BE1-67N TIME OVERCURRENT CURVES BE1-67N time overcurrent curves are illustrated in Figures A-1 through A-12. Table A-1 lists each curve along with the corresponding characteristic curve selector switch position. Table A-1. Characteristic Curves and Switch Positions...
  • Page 60 Figure A-1. Timing Type B1, Short Inverse (Switch Position 3) BE1-67N Characteristic Curves 9190700990 Rev F...
  • Page 61 Figure A-2. Timing Type B2, Long Inverse (Switch Position 1) 9190700990 Rev F BE1-67N Characteristic Curves...
  • Page 62 Figure A-3. Timing Type B3, Definite Time (Switch Position 5) BE1-67N Characteristic Curves 9190700990 Rev F...
  • Page 63 Figure A-4. Timing Type B4, Moderate Inverse (Switch Position 2) 9190700990 Rev F BE1-67N Characteristic Curves...
  • Page 64 Figure A-5. Timing Type B5, Inverse (Switch Position 4) BE1-67N Characteristic Curves 9190700990 Rev F...
  • Page 65 Figure A-6. Timing Type B6, Very Inverse (Switch Position 6) 9190700990 Rev F BE1-67N Characteristic Curves...
  • Page 66 Figure A-7. Timing Type B7, Extremely Inverse (Switch Position 7) BE1-67N Characteristic Curves 9190700990 Rev F...
  • Page 67 Figure A-8. Timing Type E2, BS 142 Long Inverse (Switch Position 8) 9190700990 Rev F BE1-67N Characteristic Curves...
  • Page 68 Figure A-9. Timing Type E4, BS 132 Inverse (Switch Position 9) A-10 BE1-67N Characteristic Curves 9190700990 Rev F...
  • Page 69 Figure A-10. Timing Type E5, BS 142 Inverse (Switch Position A) 9190700990 Rev F BE1-67N Characteristic Curves A-11...
  • Page 70 Figure A-11. Timing Type E6, BS 142 Very Inverse (Switch Position B) A-12 BE1-67N Characteristic Curves 9190700990 Rev F...
  • Page 71 Figure A-12. Timing Type E7, BS 142 Extremely Inverse (Switch Position C, D, E, F) 9190700990 Rev F BE1-67N Characteristic Curves A-13...
  • Page 72 This page intentionally left blank. A-14 BE1-67N Characteristic Curves 9190700990 Rev F...

  • Page 73: Appendix B • Polar Graph Forms

    APPENDIX B • POLAR GRAPH FORMS These polar graph forms may be used to record and interpret the results of the V and I directional verification test procedures provided in Section 5, Testing. 9190700990 Rev F BE1-67N Polar Graph Forms...
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  • Page 75 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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