1. Manuals
  2. Brands
  3. Basler Manuals
  4. Relays
  5. BE1-51
  6. Instruction manual

Basler BE1-51 Instruction Manual

Time overcurrent relay
Hide thumbs Also See for BE1-51:
Table of Contents

Advertisement

Quick Links

See also: Manual
INSTRUCTION MANUAL
FOR
TIME OVERCURRENT RELAY
BE1-51
Publication Number:
Revision:
C
01/98

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the BE1-51 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Basler BE1-51

Summary of Contents for Basler BE1-51

  • Page 1 INSTRUCTION MANUAL TIME OVERCURRENT RELAY BE1-51 Publication Number: Revision: 01/98...
  • Page 2 INTRODUCTION This Instruction Manual provides information concerning the operation and installation of BE1-51 Time Overcurrent Relays. To accomplish this, the following is provided. Specifications Functional characteristics Operational Tests Mounting Information W A R N I N G ! To avoid personal injury or equipment damage, only qualified personnel should perform the procedures presented in this manual.
  • Page 3 The availability and design of all features and options are subject to modification without notice. Should further information be required, contact Basler Electric Company, Highland, Illinois. BASLER ELECTRIC ROUTE 143, BOX 269 HIGHLAND, IL 62249 USA http://www.basler.com, infor@basler.com...

  • Page 4: Table Of Contents

    Internally Operated Targets ......3-4 Current Operated Targets ......3-4 BE1-51 - Introduction...
  • Page 5 Test Plug ..........6-1 Section 7 MANUAL CHANGE INFORMATION BE1-51 -Introduction...

  • Page 6: Section 1 • General Information

    SECTION 1 • GENERAL INFORMATION DESCRIPTION BE1-51 Time Overcurrent Relays are microprocessor based devices that monitor the magnitude of single- phase, two-phase-and-neutral, or three-phase-and-neutral ac current to provide accurate time overcurrent and instantaneous overcurrent protection for 50 hertz or 60 hertz power systems.

  • Page 7: Non-Integrating Timing Function

    When timing option Z1, Z2, or Z3 is specified, a printed circuit board mounted selector switch allows a choice of up to sixteen different time overcurrent functions. Timing option Z1 or Z3 may be further specified as stan- dard or extended time, depending upon option 2 selection. BE1-51 - General Information...

  • Page 8: Neutral Defeat

    Optional front panel mounted PUSH-TO-ENERGIZE-OUTPUT pushbuttons allow direct actuation of each output relay for external circuit testing. Instantaneous Outputs One or two instantaneous overcurrent outputs are optionally available. Each is adjustable up to 40 times the BE1-51 - General Information...

  • Page 9: Packaging

    Use an extender card (Basler Electric part number: 9 1655 00 100) to test and troubleshoot the relay. An available test plug (Basler Electric part number: 10095 or G.E. part number 12XLA12A1) allows the relay to be tested in place without disturbing external control circuit wiring.

  • Page 10: Specifications

    Figure 1-1. Style Number Identification Chart SPECIFICATIONS BE1-51 Time Overcurrent Relays electrical and physical specifications are as follows: Sensing Input Burden Less than 0.1 ohms per phase or neutral. Sensing Input Rating The maximum continuous rating is 20 A, 1 second current rating is 50X (times) the maximum tap current selected, or 500 A, whichever is less.
  • Page 11 CW. Repeatability is within ±2% of the setting. Instantaneous Overcurrent Better than 98% of pickup level. Dropout Ratio Instantaneous Response Graph 1-1 shows the typical response for the instantaneous pickup element. Graph 1-1. Instantaneous Response Time BE1-51 - General Information...
  • Page 12 In standard tests, the Relay has withstood 2 g in each of three mutually perpendicular planes, swept over the range of 10 to 500 hertz for a total of six sweeps, 15 minutes each sweep, without structural damage or degradation of performance. BE1-51 - General Information...

  • Page 13: Time Overcurrent Characteristic Curves

    A drawing number is provided with each characteristic curve chart. Use this number to order the full-size (11" X 17") characteristic curve chart on transparent paper (vellum). To order any of these characteristic curve charts, contact Customer Service Department of the Power Systems Group, Basler Electric. BE1-51 - General Information...
  • Page 14 Figure 1-2. Timing Type B1: Short Inverse. Figure 1-3. Timing Type B1E: Short Inverse (Drawing No. 99-0932) With Extended Timing Range. (Drawing No. 99-0944) BE1-51 - General Information...
  • Page 15 Figure 1-4. Timing Type B2: Long Inverse Figure 1-5. Timing Type B2E: Long Inverse (Drawing No. 99-0931) With Extended Timing Range. (Drawing No. 99-0946) 1-10 BE1-51 - General Information...
  • Page 16 Figure 1-6. Timing Type B3: Definite Time Figure 1-7. Timing Type B3E: Definite Time (Drawing No. 99-0933) With Extended Timing Range. (Drawing No. 99-0942) BE1-51 - General Information 1-11...
  • Page 17 Figure 1-8. Timing Type B4: Figure 1-9. Timing Type B4E: Moderately Moderately Inverse Inverse With Extended Timing Range. (Drawing No. 99-0930) (Drawing No. 99-0945) 1-12 BE1-51 - General Information...
  • Page 18 Figure 1-10. Timing Type B5: Inverse (Drawing No. 99-0929) Figure 1-11. Timing Type B5E: Inverse With Extended Timing Range (Drawing No. 99-0943) BE1-51 - General Information 1-13...
  • Page 19 Figure 1-12. Timing Type B6: Very Inverse Figure 1-13. Timing Type B6E: Very Inverse (Drawing No. 99-0928) With Extended Timing Range. (Drawing No. 99-0941) 1-14 BE1-51 - General Information...
  • Page 20 Figure 1-14. Timing Type B7: Extremely Figure 1-15. Timing Type B7E: Extremely Inverse Inverse With Extended Timing Range. (Drawing No. 99-0927) (Drawing No. 99-0940) BE1-51 - General Information 1-15...
  • Page 21 Figure 1-16. Timing Type B8: I Figure 1-17. Timing Type B8E: I (Drawing No. 99-0926) With Extended Timing Range. (Drawing No. 99-0947) 1-16 BE1-51 - General Information...
  • Page 22 Figure 1-18. Timing Type C1: I Figure 1-19. Timing Type C1E: I T With Limit With Limit #1 #1 and Extended Timing Range. (Drawing No. 99-0956) (Drawing No. 99-0948) BE1-51 - General Information 1-17...
  • Page 23 Figure 1-20. Timing Type C2: I Figure 1-21. Timing Type C2E: I T With Limit With Limit #2 #2 and Extended Timing Range. (Drawing No. 99-0957) (Drawing No. 99-0949) 1-18 BE1-51 - General Information...
  • Page 24 Figure 1-22. Timing Type C3: I Figure 1-23. Timing Type C3E: I T With Limit With Limit #3 #3 and Extended Timing Range. (Drawing No. 99-0958) (Drawing No. 99-0950) BE1-51 - General Information 1-19...
  • Page 25 Figure 1-24. Timing Type C4: I Figure 1-25. Timing Type C4E: I T With Limit With Limit #4 #4 and Extended Timing Range. (Drawing No. 99-0959) (Drawing No. 99-0951) 1-20 BE1-51 - General Information...
  • Page 26 Figure 1-26. Timing Type C5: I Figure 1-27. Timing Type C5E: I T With Limit With Limit #5 #5 and Extended Timing Range. (Drawing No. 99-0960) (Drawing No. 99-0952) BE1-51 - General Information 1-21...
  • Page 27 Figure 1-28. Timing Type C6: I Figure 1-29. Timing Type C6E: With Limit #6 T With Limit #6 and (Drawing No. 99-0961) Extended Timing Range. (Drawing No. 99-0953) 1-22 BE1-51 - General Information...
  • Page 28 Figure 1-30. Timing Type C7: Figure 1-31. Timing Type C7E: T With Limit #7 T With Limit #7 and (Drawing No. 99-0962) Extended Timing Range. (Drawing No. 99-0954) BE1-51 - General Information 1-23...
  • Page 29 Figure 1-32. Timing Type C8: Figure 1-33. Timing Type C8E: T With Limit #8 T With Limit #8 and (Drawing No. 99-0963) Extended Timing Range. (Drawing No. 99-0955) 1-24 BE1-51 - General Information...
  • Page 30 Figure 1-34. Timing Type E2: Figure 1-35. Timing Type E4: BS 142 Long Inverse BS 142 Inverse (1.3 Sec). (Drawing No. 99-1093) (Drawing No. 99-1094) BE1-51 - General Information 1-25...
  • Page 31 Figure 1-36. Timing Type E5: Figure 1-37. Timing Type E6: BS 142 Inverse (2.9 Sec) BS 142 Very Inverse. (Drawing No. 99-1095) (Drawing No. 99-1096) 1-26 BE1-51 - General Information...
  • Page 32 Figure 1-38. Timing Type E7: BS 142 Extremely Inverse (Drawing No. 99-1097) BE1-51 - General Information 1-27...
  • Page 33 Figure 1-39. Timing Type B1: Short Inverse Figure 1-40. Timing Type B1E: Short Inverse With Integrated Algorithm. With Integrated Algorithm and (Drawing No. 99-1397) Extended Timing. (Drawing No. 99-1398) 1-28 BE1-51 - General Information...
  • Page 34 Figure 1-42. Timing Type B2E: Long Inverse Figure 1-41. Timing Type B2: Long Inverse With Integrated Algorithm and With Integrated Algorithm. Extended Timing. (Drawing No. 99-1399) (Drawing No. 99-1400) BE1-51 - General Information 1-29...
  • Page 35 Figure 1-43. Timing Type B3: Definite Time Figure 1-44. Timing Type B3E: Definite Time With Integrated Algorithm. With Integrated Algorithm and (Drawing No. 99-1401) Extended Timing. (Drawing No. 99-1402) 1-30 BE1-51 - General Information...
  • Page 36 Figure 1-45. Timing Type B4: Figure 1-46. Timing Type B4E: Moderately Moderately Inverse With Inverse With Integrated Algorithm Integrated Algorithm. and Extended Timing. (Drawing No. 99-1403) (Drawing No. 99-1404) BE1-51 - General Information 1-31...
  • Page 37 Figure 1-47. Timing Type B5: Inverse Figure 1-48. Timing Type B5E: Inverse With Integrated Algorithm. With Integrated Algorithm and (Drawing No. 99-1405) Extended Timing. (Drawing No. 99-1406) 1-32 BE1-51 - General Information...
  • Page 38 Figure 1-49. Timing Type B6: Very Inverse Figure 1-50. Timing Type B6E: Very Inverse With Integrated Algorithm. With Integrated Algorithm and (Drawing No. 99-1407) Extended Timing. (Drawing No. 99-1408) BE1-51 - General Information 1-33...
  • Page 39 Figure 1-51. Timing Type B7: Extremely Inverse Figure 1-52. Timing Type B7E: Extremely Inverse With Integrated Algorithm With Integrated Algorithm and (Drawing No. 99-1409) Extended Timing. (Drawing No. 99-1410) 1-34 BE1-51 - General Information...
  • Page 40 Figure 1-53. Timing Type B8: I Figure 1-54. Timing Type B8E: I With Integrated Algorithm. With Integrated Algorithm (Drawing No. 99-1411) and Extended Timing. (Drawing No. 99-1412) BE1-51 - General Information 1-35...
  • Page 41 Figure 1-55. Timing Type C1: I T, Limit # 1 Figure 1-56. Timing Type C1E: I T, Limit # 1 With Integrated Algorithm. With Integrated Algorithm and (Drawing No. 99-1413) Extended Timing. (Drawing No. 99-1414) 1-36 BE1-51 - General Information...
  • Page 42 Figure 1-57. Timing Type C2: I T, Limit # 2 Figure 1-58. Timing Type C2E: I T, Limit # 2 With Integrated Algorithm. With Integrated Algorithm and (Drawing No. 99-1415) Extended Timing. (Drawing No. 99-1416) BE1-51 - General Information 1-37...
  • Page 43 Figure 1-59. Timing Type C3: I T, Limit # 3 Figure 1-60. Timing Type C3E: I T, Limit # 3 With Integrated Algorithm. With Integrated Algorithm and (Drawing No. 99-1417) Extended Timing. (Drawing No. 99-1418) 1-38 BE1-51 - General Information...
  • Page 44 Figure 1-61. Timing Type C4: Figure 1-62. Timing Type C4E: I T, Limit # 4 With Limit # 4 With Integrated Algorithm Integrated Algorithm. and Extended Timing. (Drawing No. 99-1419) (Drawing No. 99-1420) BE1-51 - General Information 1-39...
  • Page 45 Figure 1-63 . Timing Type C5: I Figure 1-64. Timing Type C5E: I Limit # 5 With Integrated Algorithm. Limit # 5 With Integrated Algorithm and (Drawing No. 99-1421) Extended Timing. (Drawing No. 99-1422) 1-40 BE1-51 - General Information...
  • Page 46 Figure 1-65. Timing Type C6: I T, Limit # 6 Figure 1-66. Timing Type C6E: I T, Limit # 6 With Integrated Algorithm. With Integrated Algorithm and (Drawing No. 99-1423) Extended Timing. (Drawing No. 99-1424) BE1-51 - General Information 1-41...
  • Page 47 Figure 1-67. Timing Type C7: I T, Limit # 7 Figure 1-68. Timing Type C7E: I T, Limit # 7 With Integrated Algorithm With Integrated Algorithm and (Drawing No. 99-1425) Extended Timing. (Drawing No. 99-1426) 1-42 BE1-51 - General Information...
  • Page 48 Figure 1-69. Timing Type C8: I T, Limit # 8 Figure 1-70. Timing Type C8E: I T, Limit # 8 With Integrated Algorithm. With Integrated Algorithm (Drawing No. 99-1427) and Extended Timing. (Drawing No. 99-1428) BE1-51 - General Information 1-43...

  • Page 49: Human Machine Interface (Controls And Indicators)

    Front panel FUNCTION targets trip when the INST1, INST2* corresponding output relay is energized by an overcurrent condition. ELEMENT Targets Font panel targets trip when an output relay is energized by an overcurrent condition. BE1-51 - Human Machine Interface (Controls And Indicators)

  • Page 50: Figure 2-1. Location Of Controls And Indicators

    Figure 2-1. Location of Controls and Indicators. BE1-51 - Man Machine Interface (Controls And Indicators)
  • Page 51 This Instantaneous overcurrent sensing circuit detects levels that are multiples of the level selected for the time overcurrent sensing circuit. Any change of the tap selector or calibration (CAL) controls will cause a directly proportional change of the instantaneous overcurrent Levels. BE1-51 - Human Machine Interface (Controls And Indicators)

  • Page 52: Table 2-2. Sensing Input Ranges

    0.80 Same as Range 1 NOTE: † For relays with sensing input ranges 1 or 9, connect the system wiring to the current sensing terminals for the desired range (HIGH or LOW). BE1-51 - Man Machine Interface (Controls And Indicators)

  • Page 53: Table 2-3. Timing Curve Selection Table

    INST 1 INST 2 Type ELEMENT ELEMENTS > > > > > > > > > > > > NOTE: † For specific options, refer to Figure 1-1, Style Number Identification Chart. BE1-51 - Human Machine Interface (Controls And Indicators)

  • Page 54: Section 3 • Functional Description

    3-1) processes signals, performs logic functions, and all of the time overcurrent computations. Power Supply Basler Electric enhanced the power supply design for unit case relays. This new design created three, wide range power supplies that replace the five previous power supplies. Style number identifiers for these power supplies have not been changed so that customers may order the same style numbers that they ordered previously.

  • Page 55: Figure 3-1. Functional Block Diagram

    Figure 3-1. Functional Block Diagram BE1-51 - Functional Description...

  • Page 56: Tap Select And Tap Cal

    INST 2 adjust to energize the instantaneous 2 output relay. Note that the current level settings for the instantaneous overcurrent element will always be from 1 to 40 times above the front panel TAP and TAP (NEUTRAL) settings of the time overcurrent element. BE1-51 - Functional Description...

  • Page 57: Timed And Instantaneous Outputs

    Each target, when operated, is magnetically latched and must be reset manually. Target configurations for the various models are provided in Section 2. BE1-51 - Functional Description...

  • Page 58: Section 4 • Installation

    If there is evidence of damage, immediately file a claim with the carrier and notify the Regional Sales Office, or contact the Sales Representative at Basler Electric, Highland, Illinois. In the event the relay is not to be installed immediately, store the relay in its original shipping carton in a moisture and dust free environment.
  • Page 59 2 plugs for 20-terminal cases). Removal of the connection plug(s) opens the normally open trip contact circuits and shorts the normally closed trip contact circuits before opening the power and sensing circuits. Figure 4-1. Typical External Connections, Current Operated Targets, DC Powered BE1-51 - Installation...
  • Page 60 Figure 4-2. Typical Sensing External Connections, Sensing Input Type G or K Figure 4-3. Typical Sensing External Connections, Sensing Input Type I or X BE1-51 - Installation...
  • Page 61 Figure 4-4. Typical Sensing External Connections, Sensing Input Type H or V BE1-51 - Installation...
  • Page 62 Figure 4-5. Typical Internal Diagram, Sensing Input Type K With Power Supply Status BE1-51 - Installation...
  • Page 63 Figure 4-6. Typical Internal Diagram, Sensing Input Type I or X With Power Supply Status BE1-51 - Installation...
  • Page 64 Figure 4-7. Typical Internal Diagram, Sensing Input Type G With Power Supply Status BE1-51 - Installation...
  • Page 65 Figure 4-8. Typical Internal Diagram, Sensing Input Type H or V With Power Supply Status BE1-51 - Installation...

  • Page 66: Figure 4-9. Panel Drilling Diagram, Semi-Flush Mounting

    Figure 4-9. Panel Drilling Diagram, Semi-Flush Mounting Figure 4-10. Outline Dimensions, Semi-Flush Mounting BE1-51 - Installation...

  • Page 67: Figure 4-11. Panel Drilling Diagram, Projection Mounting

    Figure 4-11. Panel Drilling Diagram, Projection Mounting, Rear View Figure 4-12. Outline Dimensions, Projection Mounting 4-10 BE1-51 - Installation...

  • Page 68: Section 5 • Tests And Adjustments

    Relay. For all three-phase relays, the test signals must connect to both the current and voltage terminals for the same phase. Ensure that timed output terminals 1 and 10 are connected. BE1-51 - Tests And Adjustments...

  • Page 69: Test Setup For Sensing Input Type K

    Step 4. Adjust the front panel INST 1 and INST 2 controls, if present, fully clockwise (CW). Step 5. Adjust the front panel TAP CAL control, and if present, the front panel TAP (NEUTRAL) control fully CW. Figure 5-1. Test Setup for Sensing Input Type K (Single-Phase Sensing) BE1-51 - Tests And Adjustments...

  • Page 70: Test Setup For Sensing Input Type G

    Figure 5-2. Test Setup for Sensing Input Type G (Three-Phase Sensing) Figure 5-3. Test Setup for Sensing Input Type H or V (Three-Phase with Neutral Sensing) BE1-51 - Tests And Adjustments...

  • Page 71: Time Overcurrent Pickup Test

    Step 5. Adjust the front panel TAP CAL control fully CW to allow measurement of the actual overcurrent pickup point at the A setting of the front panel TAP selector. Note that the front panel TIMING Indicator will extinguish. Do not disturb this setting. BE1-51 - Tests And Adjustments...
  • Page 72 A setting of the front panel TAP (NEUTRAL) selector. Note that the front panel TIMING (NEUTRAL) indicator will extinguish. Do not disturb this setting. Step 17. Slowly increase the current toward the value of the front panel TAP (NEUTRAL) selector A setting BE1-51 - Tests And Adjustments...

  • Page 73: Neutral Defeat Test

    Step 5. Adjust the test set for an overcurrent threshold of precisely 5 times the front panel TAP selector B setting. Step 6. Apply input current to the relay and initiate the test setup timer. BE1-51 - Tests And Adjustments...
  • Page 74 Step 16. Adjust the test set for an overcurrent threshold of precisely 5 times the front panel TAP (NEUTRAL) selector B setting as measured by the ammeter. Step 17. Apply input current to the relay and initiate the test setup timer. RESULTS: Observe that the appropriate front panel TIMING (NEUTRAL) indicator illuminates. BE1-51 - Tests And Adjustments...

  • Page 75: Instantaneous Overcurrent Pickup Test

    The recorded value should be equal to or less than the front panel TAP selector A setting for the minimum overcurrent pickup point for the instantaneous 1 overcurrent element. Step 7. Reset the relay front panel targets (if present). BE1-51 - Tests And Adjustments...
  • Page 76 (b) Front panel FUNCTION - INST 2 target instead of the front panel INST 1 target (Step 4). (c) Instantaneous 2 output relay instead of the instantaneous 1 output relay (Step 2). NOTE This concludes the instantaneous overcurrent sensing and output test. BE1-51 - Tests And Adjustments...

  • Page 77: Adjustment Of Controls For Relay Operation

    NOTE For three-phase relays, ensure that the test signals are connected to both the current and voltage terminals for the same phase. Step 2. Remove the relay front cover. 5-10 BE1-51 - Tests And Adjustments...

  • Page 78: Time Overcurrent Curve Selection (Timing Type Z1, Z2, And Z3)

    Figure 2-1 for the location of the logic board and curve selector. Step 3. Select the desired curve. See Table 2-3 for the desired curve and selector position. Step 4. Re-install the front panel and the front cover. BE1-51 - Tests And Adjustments 5-11...

  • Page 79: Time Delay Selection

    For a lesser overcurrent difference from the pickup point, the time delay will be greater, so that for a multiple of 3 times the pickup current, the time delay for the previous front panel setting of 52 will be 5.8 seconds. 5-12 BE1-51 - Tests And Adjustments...

  • Page 80: Inst 1 Control Setting

    Step 15. If the overcurrent threshold reading from Step 13 was too high or low, adjust the front panel INST 1 (NEUTRAL) control CCW to lower (or CW to raise) the Neutral Instantaneous 1 Overcurrent Pickup Point. Repeat Steps 9 through 14. If NOT, proceed to the next test. BE1-51 - Tests And Adjustments 5-13...

  • Page 81: Inst 2 Control Setting

    For this adjustment, repeat INST 1 control setting, but substitute instantaneous 2 output terminals (11 and 12) and the front panel INST 2 controls Because neutral sensing does not apply to this pickup point, ignore Steps 9 through 15. 5-14 BE1-51 - Tests And Adjustments...

  • Page 82: Section 6 • Maintenance

    TEST PLUG Test plugs (Basler part number 10095 or G.E. part number XLA12A1) provide a quick, easy method of testing relays without removing them from their case. Test plugs are simply substituted for the connection plugs.
  • Page 83 1 through 10 facing up. Similarly, when using the test plug in the upper part of the relay, the numbers 11 through 20 are faceup. It is impossible, due to the construction of the test plug, to insert it with the wrong orientation. BE1-51 - Maintenance...

  • Page 84: Manual Change Information

    GENERAL Substantive changes in this manual to date are summarized in Table 7-1. Revision Summary of Changes ECA/DATE Created new BE1-51 Instruction Manual, publication number, 07-07-92 9 1372 00 997. Added characteristic curves for integrating algorithm, Figures 1-39 13115/02-03-93 through 1-70.

Table of Contents

Save PDF