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Basler V3E Z1P B2C1F Instruction Manual

Time overcurrent relay
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INSTRUCTION MANUAL
TIME OVERCURRENT RELAY
Courtesy of NationalSwitchgear.com
FOR
BE1-51
NEUTRAL DEFEAT
PHASE
ON
TAP
INST
INST
CAL
1
2
OFF
A
B
TIME DIAL
TIMING
OVERCURRENT RELAY
Style No. V3E Z1P B2C1F
R
Serial No. H12345678 R U
A
B
C
PUSH TO
ENERGIZE
OUTPUT
1
ELEMENT
2
C
TAP
A
B
D
HIGH
2.25
3.00
4.50
5.25
T
LOW
0.75
1.00
1.50
1.75
PHASE - TAP
E
F
E
D
G
D
C
H
C
B
I
B
A
J
A
CAL
INST
TAP
TAP
1
C
TIME DIAL
TIMING
NEUTRAL
BE1-51
POWER
INST
INST
N
TIME
1
2
FUNCTION
E
F
G
H
I
J
6.75
7.50
9.00
9.75
11.25
12.00
2.25
2.50
3.00
3.25
3.75
4.00
Publication: 9137200997
Revision: D
F
G
H
I
J
P0048-48
08/07

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Summary of Contents for Basler V3E Z1P B2C1F

  • Page 1 PHASE - TAP NEUTRAL DEFEAT PHASE INST INST INST TIME DIAL TIME DIAL TIMING TIMING NEUTRAL BE1-51 OVERCURRENT RELAY Style No. V3E Z1P B2C1F POWER Serial No. H12345678 R U INST INST TIME PUSH TO ENERGIZE OUTPUT ELEMENT FUNCTION HIGH 2.25 3.00...
  • Page 2 Courtesy of NationalSwitchgear.com...
  • Page 3 INTRODUCTION This instruction manual provides information about the operation and installation of the BE1-51 Time Overcurrent Relay. To accomplish this, the following information is provided: • General Information and Specifications • Controls and Indicators • Functional Description • Installation • Tests and Adjustments WARNING! To avoid personal injury or equipment damage, only qualified personnel should perform the procedures in this manual.
  • 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 BE1-51 instruction manual (9137200997). Revisions are listed in reverse chronological order. Manual Revision and Date Change • D, 08/07 Updated Output Contacts ratings in Section 1. •...
  • Page 6 This page intentionally left blank. BE1-51 Introduction 9137200997 Rev D Courtesy of NationalSwitchgear.com...
  • 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 • TESTS AND ADJUSTMENTS .................... 5-1 APPENDIX A • TIME OVERCURRENT CHARACTERISTIC CURVES ........... A-1 9137200997 Rev D BE1-51 Introduction Courtesy of NationalSwitchgear.com...
  • Page 8 This page intentionally left blank. BE1-51 Introduction 9137200997 Rev D Courtesy of NationalSwitchgear.com...

  • Page 9: Table Of Contents

    SECTION 1 • GENERAL INFORMATION TABLE OF CONTENTS SECTION 1 • GENERAL INFORMATION ....................1-1 DESCRIPTION............................1-1 STANDARD FEATURES ........................1-1 Time Overcurrent Functions....................... 1-1 Non-Integrating Timing........................1-2 Integrating Timing..........................1-2 Built-In Test ............................1-2 OPTIONS ............................... 1-2 Timing..............................1-2 Neutral Defeat ............................
  • Page 10 This page intentionally left blank. BE1-51 General Information 9137200997 Rev D Courtesy of NationalSwitchgear.com...

  • Page 11: 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. STANDARD FEATURES Time Overcurrent Functions Time overcurrent elements pick up over a range of 0.1 to 0.8 amperes, 0.3 to 2.4 amperes, 0.5 to 4.0...

  • Page 12: Non-Integrating Timing

    Characteristic curves are shown by the graphs in Appendix A, Time Overcurrent Characteristic Curves. Note that each graph (i.e. function) consists of a set of representative curves. Each curve (as well as any between-curve interpolation) is selectable by the front panel TIME DIAL using a two-digit destination from 00 to 99.

  • Page 13: Power Supply

    (depending upon case style selected). Circuit components are accessed by removing the individual printed circuit boards from the relay cradle. Use an extender card (Basler Electric part number: 9165500199) to test and troubleshoot the relay. An available test plug (Basler Electric part number: 10095 or G.E.

  • Page 14: Figure 1-1. Style Number Identification Chart

    Style Number Identification Chart (Figure 1-1) illustrates the manner in which the relay style number is determined. For example, if the style number were H3E-Z1P-B2C1F, the device would have the following characteristics: Three-Phase-and-Neutral sensing Sensing input range of 1.5 to 12.0 amperes for phase and 0.5 to 4.0 amperes for neutral Normally open outputs Z1 - Switch selectable time curves...

  • Page 15: Specifications

    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 16: Time Delay Accuracy

    Time Delay Accuracy ±5% of the characteristic curve (Figures A-1 through A-37) for any combination of the front panel TIME DIAL setting and the front panel TAP/TAP CAL overcurrent pickup setting. Repeatability is within ±2% of setting at 25°C. Output Circuits Resistive Ratings 120 Vac: Make, break, and carry 7 Aac continuously...

  • Page 17: Surge Withstand Capability

    Surge Withstand Capability Qualified to ANSI/IEEE C37.90.1-1989, Standard Surge Withstand Capability (SWC) Tests for Protective Relays and Relay Systems. UL Recognized UL recognized per Standard 508, UL File No. E97033. Note: Output contacts are not UL recognized for voltages greater than 250 volts and input power supply voltages greater than 150 volts. GOST-R Gost-R certified No.
  • Page 18 This page intentionally left blank. BE1-51 General Information 9137200997 Rev D Courtesy of NationalSwitchgear.com...
  • Page 19 SECTION 2 • CONTROLS AND INDICATORS TABLE OF CONTENTS SECTION 2 • CONTROLS AND INDICATORS ..................2-1 INTRODUCTION............................ 2-1 Figures Figure 2-1. Location of Controls and Indicators ..................2-1 Tables Table 2-1. Controls and Indicators ......................2-2 Table 2-2. Sensing Input Ranges ......................2-3 Table 2-3.
  • Page 20 This page intentionally left blank. BE1-51 Controls and Indicators 9137200997 Rev D Courtesy of NationalSwitchgear.com...
  • Page 21 PHASE - TAP NEUTRAL DEFEAT PHASE INST INST INST TIME DIAL TIME DIAL TIMING TIMING NEUTRAL BE1-51 OVERCURRENT RELAY Style No. V3E Z1P B2C1F POWER Serial No. H12345678 R U INST INST TIME PUSH TO ENERGIZE OUTPUT ELEMENT FUNCTION HIGH 2.25 3.00...
  • Page 22 Table 2-1. Controls and Indicators Call- Control or Indicator Function TAP NEUTRAL Selector Provides selection of the Neutral Overcurrent Pickup Point in conjunction with the front panel NEUTRAL CAL control. PHASE-TAP Selector Provides the selection of the Overcurrent Pickup Point in conjunction with the front panel TAP CAL control.
  • Page 23 Call- Control or Indicator Function INST 2 Control (Option 1-2 A four-turn potentiometer provides adjustment of the front Only)† panel INST 2 trip setting of the range of 1 to 40 times the selected phase time overcurrent pickup (TAP) value. NEUTRAL DEFEAT LED LED lights when neutral defeat function is enabled.
  • Page 24 Current Sensing TAP Selector Range Terminals Plate or ØA ØB ØC Pickup Sensing Input Range 5, Three-Phase-and-Neutral Phase or 2.25 3.00 4.50 5.25 6.75 7.50 9.00 9.75 11.25 12.00 13,14 15,16 17,18 Neutral Sensing Input Range 6, Three-Phase-and-Neutral Phase or 0.15 0.20 0.30...
  • Page 25 SECTION 3 • FUNCTIONAL DESCRIPTION TABLE OF CONTENTS GENERAL .............................. 3-1 BLOCK DIAGRAM ANALYSIS ......................3-1 Power Supply ............................. 3-2 Current Sensing ..........................3-2 Tap Select and Tap Cal........................3-2 Neutral Defeat ............................ 3-2 Multiplexor ............................3-2 Analog-To-Digital Converter and Level Detector ................3-2 Time Trip Comparator and Scaler ......................
  • Page 26 This page intentionally left blank. BE1-51 Functional Description 9137200997 Rev D Courtesy of NationalSwitchgear.com...
  • Page 27 SECTION 3 • FUNCTIONAL DESCRIPTION GENERAL BE1-51 Time Overcurrent Relays are microprocessor-based devices that provide protection for the phase or phase and neutral time and instantaneous overcurrent functions. BLOCK DIAGRAM ANALYSIS The following block diagram analysis is referenced to Figure 3-1. A microprocessor (not illustrated in Figure 3-1) processes signals, performs logic functions, and all of the time overcurrent computations.
  • Page 28 Power Supply Operating power for the relay circuitry is supplied by a wide range, electrically isolated, low-burden power supply. Power supply operating power is not polarity sensitive. The front panel power LED and power supply status output indicate when the power supply is operating. Power supply specifications are listed in Table 1-1.
  • Page 29 If option 3 is present, an auxiliary output relay (with either N.O., N.C., or SPDT contacts) is also actuated when the timed output relay energizes. Instantaneous Overcurrent (Options 1-1 and 1-2) Input current levels applied to the time overcurrent circuitry are also passed to the instantaneous overcurrent circuitry.
  • Page 30 NOTE Prior to August 2007, BE1-51 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. BE1-51 Functional Description 9137200997 Rev D Courtesy of NationalSwitchgear.com...
  • Page 31 SECTION 4 • INSTALLATION TABLE OF CONTENTS SECTION 4 • INSTALLATION ........................4-1 INTRODUCTION............................ 4-1 RELAY OPERATING GUIDELINES AND PRECAUTIONS ..............4-1 MOUNTING............................4-1 CONNECTIONS ............................ 4-7 MAINTENANCE ........................... 4-14 STORAGE............................4-14 Figures Figure 4-1. Outline Dimensions, Side View, Semi-Flush Mounted, Double-Ended Case......4-2 Figure 4-2.
  • Page 32 This page intentionally left blank. BE1-51 Installation 9137200997 Rev D Courtesy of NationalSwitchgear.com...

  • Page 33: Section 4 • Installation

    If there is evidence of damage, file a claim with the carrier, and notify your sales representative or Basler Electric. If the relay will not be installed immediately, store it in its original shipping carton in a moisture- and dust- free environment.
  • Page 34 D2853-22 06-15-99 Figure 4-1. Outline Dimensions, Side View, Semi-Flush Mounted, Double-Ended Case BE1-51 Installation 9137200997 Rev D Courtesy of NationalSwitchgear.com...
  • Page 35 Figure 4-2. Outline Dimensions, Side View, Projection Mounted, Double-Ended Case 9137200997 Rev D BE1-51 Installation Courtesy of NationalSwitchgear.com...
  • Page 36 Figure 4-3. Outline Dimensions, Front View, Case Cover BE1-51 Installation 9137200997 Rev D Courtesy of NationalSwitchgear.com...
  • Page 37 Figure 4-4. Panel Cutting and Drilling Dimensions, Semi-Flush Mounting, Double-Ended Case 9137200997 Rev D BE1-51 Installation Courtesy of NationalSwitchgear.com...
  • Page 38 Figure 4-5. Panel Drilling Dimensions, Projection Mounting, Double-Ended Case BE1-51 Installation 9137200997 Rev D Courtesy of NationalSwitchgear.com...

  • Page 39: Connections

    CONNECTIONS Be sure to check the model and style number of a relay before connecting and energizing the relay. Incorrect wiring may result in damage to the relay. Except where noted, connections should be made with wire no smaller than 14 AWG. Typical external connections are shown in Figures 4-6 through 4-9.
  • Page 40 Figure 4-7. Typical Sensing External Connections, Sensing Input Type G or K Figure 4-8. Typical Sensing External Connections, Sensing Input Type I or X BE1-51 Installation 9137200997 Rev D Courtesy of NationalSwitchgear.com...
  • Page 41 Figure 4-9. Typical Sensing External Connections, Sensing Input Type H or V 9137200997 Rev D BE1-51 Installation Courtesy of NationalSwitchgear.com...
  • Page 42 Figure 4-10. Typical Internal Diagram, Sensing Input Type K 4-10 BE1-51 Installation 9137200997 Rev D Courtesy of NationalSwitchgear.com...
  • Page 43 Figure 4-11. Typical Internal Diagram, Sensing Input Type I or X 9137200997 Rev D BE1-51 Installation 4-11 Courtesy of NationalSwitchgear.com...
  • Page 44 Figure 4-12. Typical Internal Diagram, Sensing Input Type G 4-12 BE1-51 Installation 9137200997 Rev D Courtesy of NationalSwitchgear.com...
  • Page 45 Figure 4-13. Typical Internal Diagram, Sensing Input Type H or V 9137200997 Rev D BE1-51 Installation 4-13 Courtesy of NationalSwitchgear.com...

  • Page 46: Maintenance

    MAINTENANCE BE1-51 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).
  • Page 47 SECTION 5 • TESTS AND ADJUSTMENTS TABLE OF CONTENTS SECTION 5 • TESTS AND ADJUSTMENTS .................... 5-1 GENERAL .............................. 5-1 REQUIRED TEST EQUIPMENT ......................5-1 OPERATIONAL TEST ........................... 5-1 Preliminary Instructions ........................5-1 Time Overcurrent Pickup Test......................5-3 Neutral Defeat Test ..........................5-5 Timed Output Test..........................
  • Page 48 This page intentionally left blank. BE1-51 Tests and Adjustments 9137200997 Rev D Courtesy of NationalSwitchgear.com...

  • Page 49: Section 5 • Tests And Adjustments

    SECTION 5 • TESTS AND ADJUSTMENTS GENERAL Procedures in this section are for use in testing and adjusting a relay for the desired operation in a protective scheme. If a relay fails an operational test, or if an adjustment discloses a faulty relay, refer to Section 4, Installation, Maintenance.
  • Page 50 Sensing Input Type I or X (Two-Phase with Neutral Sensing). Refer to Figure 5-4. Ensure that the timed output terminals 1 and 10 are connected. Also, verify that either A, B, or C current sense terminals are connected initially (N terminals will be connected later in the test).

  • Page 51: Time Overcurrent Pickup Test

    Figure 5-3. Test Setup for Sensing Input Type H or V (Three-Phase with Neutral Sensing) Figure 5-4. Test Setup for Sensing Input Type I or X (Two-Phase with Neutral Sensing) Time Overcurrent Pickup Test This test checks the minimum and maximum overcurrent pickup points of the time overcurrent element. NOTE During this test, disregard any indication on the test setup timer.
  • Page 52 Step 4. Slowly adjust the front panel TAP CAL control CCW until the front panel TIMING indicator illuminates. RESULT: For the phase minimum overcurrent pickup point of 0.5 A (Step 3a, above) or 1.5 A (Step 3b, above) the front panel TAP CAL control should be near its maximum CCW limit. Step 5.

  • Page 53: Neutral Defeat Test

    Step 19. Set the front panel TAP (NEUTRAL) selector to J. Step 20. Slowly adjust the test set, increasing the overcurrent threshold toward the value of the front panel TAP (NEUTRAL) selector J setting until the front panel TIMING (NEUTRAL) indicator just illuminates.
  • Page 54 (b) The appropriate front panel ELEMENT target A, B, or C (if present) trips. Step 8. Remove input current and (if present) reset the relay front panel targets. NOTE Due to delays inherent in the test equipment, the time delay for the following test may appear to exceed these limits.

  • Page 55: Instantaneous Overcurrent Pickup Test

    NOTE Due to delays inherent in the test equipment, the time delay may appear to exceed these limits. This concludes the timed output test. Relays having instantaneous overcurrent option 1-1 or 1-2 only proceed to the Instantaneous Overcurrent Pickup Test. Instantaneous Overcurrent Pickup Test This test checks the minimum overcurrent pickup points for Instantaneous 1 and (if present) Instantaneous 2 outputs.

  • Page 56: Adjustments Of Controls For Relay Operation

    NOTE For relays having neutral sensing (Sensing Input Types H, I, V, or X) perform Step 12. For relays with option 1-2 (INST 2 elements), perform Step 13. Otherwise, the test ends here. Step 12. For the neutral sensing, connect the relay as shown in Figures 5-3 and 5-4, then repeat Steps 2 through 11, substituting the following: (a) The front panel TAP (NEUTRAL) selector instead of the front panel TAP selector (Step 3).

  • Page 57: Time Overcurrent Curve Selection (Timing Type Z1, Z2, And Z3 Only)

    (d) Sensing Input Types H or V: Refer to Figure 5-3. Because the relay front panel TIMING indicator provides the needed pickup indication, do not connect the test setup to the output terminals. The front panel TAP selector is ganged and the adjustment of one input phase automatically aligns the others, thus, only one set of current sense terminals need be connected.

  • Page 58: Time Delay Selection

    Time Delay Selection NOTE If Timing Type Z1, Z2, or Z3 is installed, refer to time overcurrent curve selection to obtain the desired set of time overcurrent curves (see Figures A-1 through A- 69). Then proceed to Step 1, following. If Timing Type Z1, Z2, or Z3 is not installed, determine the timing type from the model and style number for a specific relay.

  • Page 59: Inst 2 Control Setting

    Step 1. Verify that the test setup is as described in TAP and TAP (NEUTRAL) Selector Setting, Steps 1 through 6. Step 2. Connect the test setup to the instantaneous 1 element output terminals (2 and 10) as shown in Figures 5-1 through 5-4.
  • Page 60 This page intentionally left blank. 5-12 BE1-51 Tests and Adjustments 9137200997 Rev D Courtesy of NationalSwitchgear.com...
  • Page 61 APPENDIX A • TIME OVERCURRENT CHARACTERISTIC CURVES TABLE OF CONTENTS APPENDIX A • TIME OVERCURRENT CHARACTERISTIC CURVES ...........A-1 EXPLANATION OF CURVES........................A-1 Figures Figure A-1. Timing Type B1, Short Inverse ....................A-3 Figure A-2. Timing Type B1, Short Inverse with Extended Timing Range..........A-3 Figure A-3.
  • Page 62 Figure A-50. Timing Type B7, Extremely Inverse with Integrated Algorithm...........A-28 Figure A-51. Timing Type B7, Extremely Inverse with Integrated Algorithm and Extended Timing ..A-28 Figure A-52. Timing Type B8, I t with Integrated Algorithm ..............A-29 Figure A-53. Timing Type B8, I t with Integrated Algorithm and Extended Timing .........A-29 Figure A-54.
  • Page 63 APPENDIX A • TIME OVERCURRENT CHARACTERISTIC CURVES EXPLANATION OF CURVES Graphs on the following pages illustrate sample characteristic curves for all of the time overcurrent functions individually as options, or selectable by switch (if the Z1, Z2, or Z3 timing option is specified). Z1 option can select any of the timing types designated as B1 through B8, and C1 through C8.
  • Page 64 Table A-2. Timing Curve Selection Table Standard Extended Standard Extended Selector Selector Curves Curves Curves Curves Timing Type Position Position Z1, Z2 Z1, Z2 ∗ † Fig. No. Fig. No. Fig. No. Fig. No. B1 - Short Inverse A-38 A-39 B2 - Long Inverse A-40 A-41...
  • Page 65 Figure A-2. Timing Type B1, Short Inverse Figure A-1. Timing Type B1, Short Inverse with Extended Timing Range 9137200997 Rev D BE1-51 Time Overcurrent Characteristic Curves Courtesy of NationalSwitchgear.com...
  • Page 66 Figure A-4. Timing Type B2, Long Inverse Figure A-3. Timing Type B2, Long Inverse with Extended Timing Range BE1-51 Time Overcurrent Characteristic Curves 9137200997 Rev D Courtesy of NationalSwitchgear.com...
  • Page 67 Figure A-6. Timing Type B3, Definite Time Figure A-5. Timing Type B3, Definite Time with Extended Timing Range 9137200997 Rev D BE1-51 Time Overcurrent Characteristic Curves Courtesy of NationalSwitchgear.com...
  • Page 68 Figure A-8. Timing Type B4, Moderately Inverse Figure A-7. Timing Type B4, Moderately Inverse with Extended Timing Range BE1-51 Time Overcurrent Characteristic Curves 9137200997 Rev D Courtesy of NationalSwitchgear.com...
  • Page 69 Figure A-9. Timing Type B5, Inverse Figure A-10. Timing Type B5, Inverse with Extended Timing Range 9137200997 Rev D BE1-51 Time Overcurrent Characteristic Curves Courtesy of NationalSwitchgear.com...
  • Page 70 Figure A-12. Timing Type B6, Very Inverse with Figure A-11. Timing Type B6, Very Inverse Extended Timing Range BE1-51 Time Overcurrent Characteristic Curves 9137200997 Rev D Courtesy of NationalSwitchgear.com...
  • Page 71 Figure A-14. Timing Type B7, Extremely Inverse Figure A-13. Timing Type B7, Extremely Inverse with Extended Timing Range 9137200997 Rev D BE1-51 Time Overcurrent Characteristic Curves Courtesy of NationalSwitchgear.com...
  • Page 72 Figure A-15. Timing Type B8, I Figure A-16. Timing Type B8, I with Extended Timing Range A-10 BE1-51 Time Overcurrent Characteristic Curves 9137200997 Rev D Courtesy of NationalSwitchgear.com...
  • Page 73 Figure A-17. Timing Type C1, I t with Limit #1 Figure A-18. Timing Type C1, I t with Limit #1 and Extended Timing Range 9137200997 Rev D BE1-51 Time Overcurrent Characteristic Curves A-11 Courtesy of NationalSwitchgear.com...
  • Page 74 Figure A-19. Timing Type C2, I t with Limit #2 Figure A-20. Timing Type C2, I t with Limit #2 and Extended Timing Range A-12 BE1-51 Time Overcurrent Characteristic Curves 9137200997 Rev D Courtesy of NationalSwitchgear.com...
  • Page 75 Figure A-22. Timing Type C3, I t with Limit #3 Figure A-21. Timing Type C3, I t with Limit #3 and Extended Timing Range 9137200997 Rev D BE1-51 Time Overcurrent Characteristic Curves A-13 Courtesy of NationalSwitchgear.com...
  • Page 76 Figure A-24. Timing Type C4, I t with Limit #4 Figure A-23. Timing Type C4, I t with Limit #4 and Extended Timing Range A-14 BE1-51 Time Overcurrent Characteristic Curves 9137200997 Rev D Courtesy of NationalSwitchgear.com...
  • Page 77 Figure A-25. Timing Type C5, I t with Limit #5 Figure A-26. Timing Type C5, I t with Limit #5 and Extended Timing Range 9137200997 Rev D BE1-51 Time Overcurrent Characteristic Curves A-15 Courtesy of NationalSwitchgear.com...
  • Page 78 Figure A-28. Timing Type C6, I t with Limit #6 Figure A-27. Timing Type C6, I t with Limit #6 and Extended Timing Range A-16 BE1-51 Time Overcurrent Characteristic Curves 9137200997 Rev D Courtesy of NationalSwitchgear.com...
  • Page 79 Figure A-29. Timing Type C7, I t with Limit #7 Figure A-30. Timing Type C7, I t with Limit #7 and Extended Timing Range 9137200997 Rev D BE1-51 Time Overcurrent Characteristic Curves A-17 Courtesy of NationalSwitchgear.com...
  • Page 80 Figure A-32. Timing Type C8, I t with Limit #8 Figure A-31. Timing Type C8, I t with Limit #8 and Extended Timing Range A-18 BE1-51 Time Overcurrent Characteristic Curves 9137200997 Rev D Courtesy of NationalSwitchgear.com...
  • Page 81 Figure A-33. Timing Type E2, BS 142 Figure A-34. Timing Type E4, Long Inverse BS 142 Inverse (1.3 Sec) 9137200997 Rev D BE1-51 Time Overcurrent Characteristic Curves A-19 Courtesy of NationalSwitchgear.com...
  • Page 82 Figure A-36. Timing Type E6, Figure A-35. Timing Type E5, BS 142 Very Inverse BS 142 Inverse (2.9 Sec) A-20 BE1-51 Time Overcurrent Characteristic Curves 9137200997 Rev D Courtesy of NationalSwitchgear.com...
  • Page 83 Figure A-37. Timing Type E7, BS 142 Extremely Inverse 9137200997 Rev D BE1-51 Time Overcurrent Characteristic Curves A-21 Courtesy of NationalSwitchgear.com...
  • Page 84 Figure A-38. Timing Type B1, Short Inverse Figure A-39. Timing Type B1, Short Inverse with with Integrated Algorithm Integrated Algorithm and Extended Timing A-22 BE1-51 Time Overcurrent Characteristic Curves 9137200997 Rev D Courtesy of NationalSwitchgear.com...
  • Page 85 Figure A-40. Timing Type B2, Long Inverse Figure A-41. Timing Type B2, Long Inverse with with Integrated Algorithm Integrated Algorithm and Extended Timing 9137200997 Rev D BE1-51 Time Overcurrent Characteristic Curves A-23 Courtesy of NationalSwitchgear.com...
  • Page 86 Figure A-42. Timing Type B3, Definite Time Figure A-43. Timing Type B3, Definite Time with with Integrated Algorithm Integrated Algorithm and Extended Timing A-24 BE1-51 Time Overcurrent Characteristic Curves 9137200997 Rev D Courtesy of NationalSwitchgear.com...
  • Page 87 Figure A-44. Timing Type B4, Moderately Figure A-45. Timing Type B4, Moderately Inverse with Integrated Algorithm. Inverse with Integrated Algorithm and Extended Timing 9137200997 Rev D BE1-51 Time Overcurrent Characteristic Curves A-25 Courtesy of NationalSwitchgear.com...
  • Page 88 Figure A-46. Timing Type B5, Inverse with Figure A-47. Timing Type B5, Inverse with Integrated Algorithm Integrated Algorithm and Extended Timing A-26 BE1-51 Time Overcurrent Characteristic Curves 9137200997 Rev D Courtesy of NationalSwitchgear.com...
  • Page 89 Figure A-49. Timing Type B6, Very Inverse with Figure A-48. Timing Type B6, Very Inverse Integrated Algorithm and Extended Timing with Integrated Algorithm 9137200997 Rev D BE1-51 Time Overcurrent Characteristic Curves A-27 Courtesy of NationalSwitchgear.com...
  • Page 90 Figure A-51. Timing Type B7, Extremely Inverse Figure A-50. Timing Type B7, Extremely Inverse with Integrated Algorithm with Integrated Algorithm and Extended Timing A-28 BE1-51 Time Overcurrent Characteristic Curves 9137200997 Rev D Courtesy of NationalSwitchgear.com...

  • Page 91: T With Integrated Algorithm

    Figure A-53. Timing Type B8, I t with Integrated Figure A-52. Timing Type B8, I Algorithm and Extended Timing with Integrated Algorithm 9137200997 Rev D BE1-51 Time Overcurrent Characteristic Curves A-29 Courtesy of NationalSwitchgear.com...
  • Page 92 Figure A-55. Timing Type C1, I t Limit #1 Figure A-54. Timing Type C1, I t Limit #1 with Integrated Algorithm with Integrated Algorithm A-30 BE1-51 Time Overcurrent Characteristic Curves 9137200997 Rev D Courtesy of NationalSwitchgear.com...

  • Page 93: Limit #2 With Integrated Algorithm

    Figure A-57. Timing Type C2, I t Limit #2 with Figure A-56. Timing Type C2, I t Limit #2 with Integrated Algorithm Integrated Algorithm and Extended Timing 9137200997 Rev D BE1-51 Time Overcurrent Characteristic Curves A-31 Courtesy of NationalSwitchgear.com...

  • Page 94: Limit #3 With Integrated Algorithm

    Figure A-59. Timing Type C3, I t Limit #3 with Figure A-58. Timing Type C3, I t Limit #3 Integrated Algorithm and Extended Timing with Integrated Algorithm A-32 BE1-51 Time Overcurrent Characteristic Curves 9137200997 Rev D Courtesy of NationalSwitchgear.com...

  • Page 95: Limit #4 With Integrated Algorithm

    Figure A-61. Timing Type C4, I t Limit #4 with Figure A-60. Timing Type C4, I t Limit #4 Integrated Algorithm and Extended Timing with Integrated Algorithm 9137200997 Rev D BE1-51 Time Overcurrent Characteristic Curves A-33 Courtesy of NationalSwitchgear.com...

  • Page 96: Limit #5 With Integrated Algorithm

    Figure A-63. Timing Type C5, I t Limit #5 with Figure A-62. Timing Type C5, I t Limit #5 Integrated Algorithm and Extended Timing with Integrated Algorithm A-34 BE1-51 Time Overcurrent Characteristic Curves 9137200997 Rev D Courtesy of NationalSwitchgear.com...

  • Page 97: Limit #6 With Integrated Algorithm

    Figure A-65. Timing Type C6, I t Limit #6 with Figure A-64. Timing Type C6, I t Limit #6 Integrated Algorithm and Extended Timing with Integrated Algorithm 9137200997 Rev D BE1-51 Time Overcurrent Characteristic Curves A-35 Courtesy of NationalSwitchgear.com...

  • Page 98: Limit #7 With Integrated Algorithm

    Figure A-67. Timing Type C7, I t Limit #7 with Figure A-66. Timing Type C7, I t Limit #7 Integrated Algorithm and Extended Timing with Integrated Algorithm A-36 BE1-51 Time Overcurrent Characteristic Curves 9137200997 Rev D Courtesy of NationalSwitchgear.com...

  • Page 99: Limit #8 With Integrated Algorithm

    Figure A-69. Timing Type C8, I t Limit #8 with Figure A-68. Timing Type C8, I t Limit #8 Integrated Algorithm and Extended Timing with Integrated Algorithm 9137200997 Rev D BE1-51 Time Overcurrent Characteristic Curves A-37 Courtesy of NationalSwitchgear.com...
  • Page 100 This page intentionally left blank. A-38 BE1-51 Time Overcurrent Characteristic Curves 9137200997 Rev D Courtesy of NationalSwitchgear.com...
  • Page 101 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 Courtesy of NationalSwitchgear.com...

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