Basler BE1-50B Instruction Manual
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Basler BE1-50B Instruction Manual

Overcurrent relay
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INSTRUCTION MANUAL
OVERCURRENT RELAY BE1-50/51B
Courtesy of NationalSwitchgear.com
FOR
Basler Electric
Highland, Illinois
R
T I M E
S T T R I P
P I C K U P
M E D I A L
P I C K U P
0
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0
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+
S
T E N T H S
C U R V E
U N I T S
T E N T H S
BE1-50/51B-105
O V E R C U R R E N T R E L A Y
I N S T
T E S T T R
P I C K U P
R E S E T
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0
T I M E
I N S T
+
T E N S
U
D2750-22.vsd
Publication: 9 2520 00 991
Revision: L
12-08-99
12/99

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  • Page 1 INSTRUCTION MANUAL OVERCURRENT RELAY BE1-50/51B Basler Electric Highland, Illinois T I M E I N S T S T T R I P P I C K U P T E S T T R M E D I A L...
  • Page 2 INTRODUCTION This manual provides information concerning the operation and installation of the BE1-50/51B Overcurrent Relay. To accomplish this, the following is provided. Specifications Functional description Mounting information Setting procedure/example 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

    $$# SECTION 1 GENERAL INFORMATION ..... . . 1-1 Description ............1-1 Application .
  • Page 5 Periodic Test ........... . 5-9 BE1-50/51B - Introduction Courtesy of NationalSwitchgear.com...
  • Page 6 CONTENTS - Continued SECTION 6 MAINTENANCE ......6-1 General ............6-1 In-House Repair .

  • Page 7: Section 1 • General Information

    SECTION 1 • GENERAL INFORMATION DESCRIPTION BE1-50/51B Overcurrent Relays are microprocessor based, non-directional phase or ground relays that monitor the magnitude of a single phase ac current to provide accurate instantaneous and time overcurrent protection for 50 hertz or 60 hertz power systems. Models are available with fifteen popular time characteristics and a wide range of pickup settings.
  • Page 8 Basler Electric Highland, Illinois T I M E I N S T S T T R I P P I C K U P T E S T T R M E D I A L P I C K U P...

  • Page 9: Specifications

    or 60 hertz, instantaneous element delays, curve sets, and instantaneous or integrating reset characteristics. The locations and description of these switches is provided in Section 2. Integrating reset is available in 100 series relays (i.e. - BE1-50/51B-105) when there is adequate input current to power the relay. Integrating reset is available in 200 series relays (i.e.
  • Page 10 TIME PICKUP Range Setting the TIME PICKUP to the minimum pickup (0.1 on the 1 ampere unit and 0.5 on the 5 ampere unit), places the relay in the most sensitive state and may be used as a safety setting. (1 Ampere Unit) 0.1 to 3.18 amperes in 0.02 ampere steps.
  • Page 11 Harmonic Response BE1-50/51B harmonic rejection is illustrated in Figure 1-3. Figure 1-3 shows that a relay set for one ampere pickup would pickup at 0.96 ampere on a current containing 40% seventh harmonic. This corresponds to a ten-to-one rejection ratio. Other conditions may be evaluated in the same manner.
  • Page 12 Figure 1-3. Harmonic Response INST Characteristics BE1-50/51B instantaneous characteristic curves are similar to standard electromechanical instantaneous units. However, the time to trip for ground applications is slightly longer than that for phase applications to allow time to power-up the relay. Longer trip time for ground applications is beneficial because it helps to avoid nuisance trips.
  • Page 13 INST Characteristics - Continued On 200 series relays, an additional delay of 0.1 second may be added with internal switch SW8-2. This delay applies to both phase and ground applications. Closing switch SW8-2 provides the additional delay of 0.1 second. Figure 1-4.
  • Page 14 Refer to Tables 1-3 and 1-4 for the time characteristic curve constants. Constants have been selected to conform to the characteristics of electromechanical relays over a range of pickup multiples from 1.3 to 40. Values of the constants are available for use in computer relay setting programs.
  • Page 15 BE1 Curve Types: Short Inverse Very Inverse Long Inverse Extremely Inverse Definite Time BS142 Very Inverse Moderately Inverse BS142 Extremely Inverse Inverse Fixed Time Time Reset Reset occurs when the current drops below pickup and the relay has not timed out. Switch SW8-4 provides selection of either an instantaneous or integrating reset characteristic.
  • Page 16 100.0 10.0 Multiple of Pickup This chart vertical axis xRD (Seconds) is applicable for all curves and is derived from multiplying the constant R for the curve selected times D (the TIME DIAL setting). Figure 1-5. Integrating Reset Characteristic Curve Output contacts can be configured in the field using jumpers to select AUX Output closing on either/or timed or instantaneous trip.

  • Page 17: Characteristic Curves

    200 relays. To order full-size drawings of these characteristic curves, contact Customer Service Department of the Power Systems Group, Basler Electric, and request publication number 9 2520 00 999 (Figures 1-6 through 1-19). These publications contain full size characteristic curves on transparent paper (vellum).
  • Page 18 MULTIPLES OF PICK-UP Figure 1-6. Time Characteristic Curve 99-1369, S-Short Inverse (SW8-3 OFF, Similar to ABB CO-2) 1-12 BE1-50/51B-General Information Courtesy of NationalSwitchgear.com...
  • Page 19 MULTIPLES OF PICK-UP Figure 1-7. Time Characteristic Curve, 99-1370, L-Long Inverse (SW8-3 OFF, Similar to ABB CO-5) BE1-50/51B-General Information 1-13 Courtesy of NationalSwitchgear.com...
  • Page 20 MULTIPLES OF PICK-UP Figure 1-8. Time Characteristic Curve, 99-1371, D-Definite Time (Similar to ABB CO-6) 1-14 BE1-50/51B-General Information Courtesy of NationalSwitchgear.com...
  • Page 21 MULTIPLES OF PICK-UP Figure 1-9. Time Characteristic Curve, 99-1372, M-Moderately Inverse (Similar to ABB CO-7) BE1-50/51B-General Information 1-15 Courtesy of NationalSwitchgear.com...
  • Page 22 MULTIPLES OF PICK-UP Figure 1-10. Time Characteristic Curve, I-Inverse (SW8-3 OFF, Similar to ABB CO-8) 1-16 BE1-50/51B-General Information Courtesy of NationalSwitchgear.com...
  • Page 23 MULTIPLES OF PICK-UP Figure 1-11. Time Characteristic Curve, 99-1374, V-Very Inverse (SW8-3 OFF, Similar to ABB C0-9) BE1-50/51B-General Information 1-17 Courtesy of NationalSwitchgear.com...
  • Page 24 MULTIPLES OF PICK-UP Figure 1-12. Time Characteristic Curve, 99-1375, E-Extremely Inverse (SW8-3 OFF, Similar to ABB C0-11) 1-18 BE1-50/51B-General Information Courtesy of NationalSwitchgear.com...
  • Page 25 MULTIPLES OF PICK-UP Figure 1-13. Time Characteristic Curve B, 99-1376, BS142-B (BS142 Very Inverse) BE1-50/51B-General Information 1-19 Courtesy of NationalSwitchgear.com...
  • Page 26 MULTIPLES OF PICK-UP Figure 1-14. Time Characteristic Curve, 99-1377, BS142-C (BS142 Extremely Inverse) 1-20 BE1-50/51B-General Information Courtesy of NationalSwitchgear.com...
  • Page 27 Figure 1-15. Time Characteristic Curve, 99-1595, S2-Short Inverse (SW8-3 ON, Similar to GE IAC 55) BE1-50/51B-General Information 1-21 Courtesy of NationalSwitchgear.com...
  • Page 28 Figure 1-16. Time Characteristic Curve, 99-1594, L2-Long Inverse (SW8-3 ON, Similar To GE IAC 66) 1-22 BE1-50/51B-General Information Courtesy of NationalSwitchgear.com...
  • Page 29 Figure 1-17. Time Characteristic Curve, 99-1597, I2-Inverse (SW8-3 ON, Similar To GE IAC 51) BE1-50/51B-General Information 1-23 Courtesy of NationalSwitchgear.com...
  • Page 30 Figure 1-18. Time Characteristic Curve, 99-1596, V2-Very Inverse (SW8-3 ON, Similar To GE IAC 53) 1-24 BE1-50/51B-General Information Courtesy of NationalSwitchgear.com...
  • Page 31 Figure 1-19. Time Characteristic Curve, 99-1598, E2-Extremely Inverse (SW8-3 ON, Similar To GE IAC 77) BE1-50/51B-General Information 1-25 Courtesy of NationalSwitchgear.com...

  • Page 32: Controls And Indicators

    SECTION 2 • HUMAN MACHINE INTERFACE (Controls and Indicators) DESCRIPTION Table 2-1 lists and briefly describes the operator controls and indicators of the BE1-50/51B Overcurrent Relay. Reference the call-out letters to Figures 2-1 and 2-2. Table 2-1. BE1-50/51B Controls and Indicators (Refer to Figures 2-1 and 2-2) Locator Control or Indicator Function...
  • Page 33 Table 2-1. BE1-50/51B Controls and Indicators - Continued Locator Control or Indicator Function SW8-3 In 100 series relays, switch SW8-3 closed (ON) provides an additional instantaneous delay of 0.2 seconds. Closing both switches SW8-2 and SW8-3 provides an additional instantaneous delay of 0.3 seconds. In 200 series relays, SW8-3 open (OFF) selects ABB type curves (refer to Table 1-3.
  • Page 34 Figure 2-3. Location of Controls and Indicators (100 And 200 Series Relays) BE1-50/51B-Human Machine Interface (Controls and Indicators) Courtesy of NationalSwitchgear.com...

  • Page 35: Section 3 • Functional Description

    SECTION 3 • FUNCTIONAL DESCRIPTION GENERAL BE1-50/51B Overcurrent Relays are microprocessor based non-directional relays that measure ac current to provide secure and reliable instantaneous and time overcurrent protection for power systems. FUNCTIONAL DESCRIPTION Sensing Input Single phase ac current from system current transformers (CT) is brought into the BE1-50/51B Overcurrent Relay at terminals eight and nine.

  • Page 36: Outputs

    Outputs Instantaneous And Timed System circuit breakers controlled by the output contacts can be manually tripped by applying a short across the TIME or INST MANUAL TRIP front panel test points. Current flow in the trip circuit is indicated by the operation of the target.

  • Page 37: 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. Proper operation of the relay may be confirmed by performing the operational test procedure (Page 4-6). 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 38: Panel Drilling Diagram Be1-50/51B, A1 Case (Semi-Flush Mount)

    Figure 4-1. Panel Drilling Diagram BE1-50/51B, A1 Case (Semi-Flush Mount) 2.40 6.19 (60.96) 6.65 (157.2) 1.95 (168.91) (49.53) 3.16 (80.2) 7.57 (192.28) 3.16 (80.2) (7.9) 2.195 (19.1) M O U N T I N G P A N E L (55.75) D2750-23 12-08-99...
  • Page 39 Figure 4-3. Panel Drilling Diagram S1 Case, (Semi-Flush Mount) BE1-50/51B-Installation Courtesy of NationalSwitchgear.com...

  • Page 40: Panel Drilling Diagram, S1 Case, (Projection Mount)

    D2750-24.vsd 12-08-99 NUMBERS IN PARENTHESES INDICATE METRIC DIMENSIONS (MILLIMETERS). ALL OTHER DIMENSIONS ARE IN INCHES. Figure 4-4. Outline Dimensions For S1 Case, (Semi-Flush Mount) Figure 4-5. Panel Drilling Diagram S1 Case, (Projection Mount) BE1-50/51B-Installation Courtesy of NationalSwitchgear.com...

  • Page 41: Outline Dimensions, Be1-50/51B, S1 Case (Projection Mount)

    2.46 (62.48) 1.95 6.19 (157.2) (49.53) M O U N T I N G P A N E L 5/16-18 STUD 2 P L A C E S 4.03 (102.4) (6.4) P A N E L C A S E D E T A I L A - A S H O W I N G T H E A D D I T I O N O F W A S H E R S O V E R T H E B O S S T O T I G H T E N T H E...

  • Page 42: Connections

    CONNECTIONS Incorrect wiring may result in damage to the relay. Be sure to check model and part number before connecting and energizing a particular relay. NOTE Be sure the ground terminal is hard-wired to the relay panel with no smaller than 12 AWG copper wire attached to the ground terminal on the rear terminal strip.
  • Page 43 Figure 4-8. DC Control Connections And Jumper Configuration Terminals BE1-50/51B-Installation Courtesy of NationalSwitchgear.com...

  • Page 44: Be1-50/51B Overcurrent Relay, Rear View

    Figure 4-9. BE1-50/51B Overcurrent Relay, Rear View BE1-50/51B-Installation Courtesy of NationalSwitchgear.com...

  • Page 45: Section 5 • Testing

    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. Proper operation of the relay may be confirmed by performing the operational test procedures in this Section.

  • Page 46: Pickup And Timing Test Setup

    Figure 5-1. Pickup and Timing Test Setup T E S T S E T C U R R E N T A M P S S O U R C E BE1-50/51M T I M E I N S T S T A R T 1.0A S T O P...

  • Page 47: Test Procedure, Models Be1-50/51B-X05, -X06, And -X07

    NOTE When testing TIME overcurrent functions, INST PICKUP settings of 00 will affect the calibration of the TIME functions. TIME PICKUP settings of 00 also affect INST functions. Test Procedure, Models BE1-50/51B-X05, -X06, and -X07 (Five Ampere Sensing Input) Time Pickup Test Perform preliminary setup: Connect test setup as shown in Figure 5-1.
  • Page 48 Step 5. Decrease input current until INST output contacts open. Time Dial Test Perform preliminary setup: Connect test setup as shown in Figure 5-1. Insure that SW8 switches are set correctly: SW8-1 for operating frequency, SW8-2 to OFF (no instantaneous delay), SW8-3 to OFF (no instantaneous delay (100 series relays) or ABB type curves selected (200 series relays) ), and SW8-4 to OFF (selects instantaneous reset).
  • Page 49 CAUTION Trip circuit voltage is present at the front panel test points. When shorting the test points, use insulated jumpers to avoid contact with these voltages. Step 1. Set target current source to 1.0 ampere, ac. Step 2. Apply 0.9 ampere input current to terminals 8 and 9. Step 3.

  • Page 50: Test Procedure, Models Be1-50/51B-X01, -X02, And -X03

    Test Procedure, Models BE1-50/51B-X01, -X02, and -X03 (One Ampere Sensing Input) Time Pickup Test Perform preliminary setup: Connect test setup as shown in Figure 5-1. Insure that SW8 switches are set correctly: SW8-1 for operating frequency, SW8-2 to OFF (no instantaneous delay), SW8-3 to OFF (no instantaneous delay (100 series relays) or ABB type curves selected (200 series relays) ), and SW8-4 to OFF (selects instantaneous reset).
  • Page 51 Time Dial Test Perform preliminary setup: Connect test setup as shown in Figure 5-1. Insure that SW8 switches are set correctly: SW8-1 for operating frequency, SW8-2 to OFF (no instantaneous delay), SW8-3 to OFF (no instantaneous delay (100 series relays) or ABB type curves selected (200 series relays) ), and SW8-4 to OFF (selects instantaneous reset).

  • Page 52: Setting The Relay

    NOTE When testing TIME overcurrent functions, INST PICKUP settings of 00 will affect the calibration of the TIME functions. TIME PICKUP settings of 00 also affect INST functions. Step 1. Set target current source to 1.0 ampere, ac. Step 2. Apply 0.15 ampere input current to terminals 8 and 9. Step 3.
  • Page 53 Periodic Test Periodic testing should consist of the following procedures. Step 1. Verify that the instantaneous pickup is within ±2% of the value set on the dials. Pickup occurs when the INST output contacts close. Step 2. Verify that the time pickup is within ±2% of the value set on the dials. Pickup occurs when the LED turns ON.

  • Page 54: In-House Repair

    A recommended periodic test is provided in this section. If the relay fails to function properly and in-house repair is considered, contact the Customer Service Department of the Power Systems Group, Basler Electric, for a return authorization number prior to shipping. IN-HOUSE REPAIR In-house replacement of individual components should be performed by qualified technicians.
  • Page 55 Step 3. Verify that the time to trip for the curve and time dial settings at a multiple of six is the same as the time given on the characteristic curve. Refer to Section 1 for the characteristics curves. Step 4. Verify that the time to trip for the instantaneous element at a pickup multiple of 2 is not greater than the time given on the instantaneous characteristic curve.

  • Page 56: Manual Change Information

    SECTION 7 • MANUAL CHANGE INFORMATION SUMMARY AND CROSS REFERENCE GUIDE This section contains information concerning the previous editions of the manual. The substantive changes to date are summarized in Table 7-1. Table 7-1. Changes Revision Summary of Changes ECA/ECO/Date Changed manual title to BE1-50/51B and incorporated engineering 12605/05-12-92 changes accordingly.
  • Page 57 Table 7-1. Changes - Continued Revision Summary of Changes ECA/ECO/Date Changed all sections to reflect 200 series relay additions and relay 14885/02-01-95 modifications that deleted P2 and P3 jumpers and added switch SW8. Changed Specifications , TIME and INST PICKUP accuracy; Output Circuits, and Isolation (Dielectric Test).

  • Page 58: Relay Differences

    SECTION 8 • RELAY DIFFERENCES GENERAL This section provides the information necessary to support BE1-50/51B 100 series relays, revision Q and previous. DIFFERENCES BE1-50/51M 100 series relay boards revision Q and previous have the following locations for controls and indicators. Table 2-1 lists and briefly describes the operator controls of these relays. Reference the callout letters to Figure 8-1.
  • Page 59 Figure 8-1. Location of Controls and Indicators, 100 Series Relays BE1-50/51B - Relay Differences Courtesy of NationalSwitchgear.com...

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