Basler BE1-50BF Instruction Manual

Basler BE1-50BF Instruction Manual

Breaker failure relay
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Summary of Contents for Basler BE1-50BF

  • Page 1 +05647%6+10/#07#. $4'#-'4(#+.74'4'.#; /1&'.$'$( 2WDNKECVKQP  4GXKUKQP '...
  • Page 2 INTRODUCTION This manual provides information concerning the operation and installation of the BE1-50BF Breaker Failure Relay. To accomplish this, the following is provided. • Specifications • Functional description • Mounting information • Testing 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 August 1998 CONFIDENTIAL INFORMATION OF BASLER ELECTRIC COMPANY, HIGHLAND, IL. 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 COMPANY.
  • Page 4: Table Of Contents

    Changes ............7-1 BE1-50BF Introduction...
  • Page 5: General Information

    The seal-in feature may also counteract contact bounce. An optional supervisory contact input to the BE1-50BF relay may be specified. When the supervisory contact input is specified, a third timer (timer 2) is built into the relay. Timer 2 (plus associated circuitry together with the supervisory contact) duplicates the corresponding features of the timer 1 system.
  • Page 6: Model And Style Number

    Relay. Refer to Figure 1-2 for the style number identification chart. Sample Style Number To determine the features in a BE1-50BF relay, style number F3F E1J A4S1F, refer to the style number identification and the following example. Three-phase sensing input type.
  • Page 7: Specifications

    Figure 1-2. Style Number Identification Chart SPECIFICATIONS The BE1-50BF Breaker Failure Relay has the following features and capabilities. Current Sensing Maximum burden of 1 VA per phase at range maximum, 50/60 Hz. Operable over a frequency range of 40 to 70 Hz. Maximum continuous current: 5 A for sensing range of 0.25 to 2.0 A;...
  • Page 8 30 A for 1 second, 7 A for 2 minutes, and 3 A continuously. Power Supply Power for the internal circuitry may be derived from ac or dc external power sources. Refer to Table 1-2. BE1-50BF General Information...
  • Page 9 Qualified to ANSI/IEEE C37.90.1-1989 Standard Surge Withstand Capability (SWC) Tests for Protective Relays and Relay Systems. Fast Transient Qualified to ANSI/IEEE C37.90.1-1989. Impulse Test Qualified to IEC 255-5. Temperature Operating Range -40C (-40F) to 70C (158F) Storage Range -65C (-85F) to 100C (212F) BE1-50BF General Information...
  • Page 10 In standard tests, the relay has withstood 2 g in each of three mutually perpendicular planes, swept over the range of 10 to 500 Hz for a total of six sweeps, 15 minutes each sweep, without structural damage or degradation of performance. Weight 14.1 pounds maximum. Case Size BE1-50BF General Information...
  • Page 11: Human-Machine Interface

    SECTION 2 • HUMAN-MACHINE INTERFACE CONTROLS AND INDICATORS The following table locators reference the callouts in Figure 2-1. Table 2-1. BE1-50BF Controls and Indicators (Refer to Figure 2-1) Locator Control or Indicator Function TIMING MONITOR Test Jacks provide nominal 10 V oscilloscope test points for...
  • Page 12 Figure 2-1. Location of Controls and Indicators BE1-50BF Human-Machine Interface...
  • Page 13 When ON (down), inhibits operation of the output relays unless the supervisory contacts are closed. When ON (down), the output relays are inhibited until both the T1 and T2 timers have cycled. At this time, a sensed current above pickup will energize the output relay. BE1-50BF Human-Machine Interface...
  • Page 14 T1 and T2 timing cycles to energize the BF output relays. In this case, sensed current need not be present. However, if T1 times out before T2, and if sensing current is above pickup, a BF output will occur. BE1-50BF Human-Machine Interface...
  • Page 15: Functional Description

    SECTION 3 • FUNCTIONAL DESCRIPTION GENERAL BE1-50BF Breaker Failure Relays are static devices designed to detect circuit breaker failure, and to trip backup circuit breakers when such failures are detected. FUNCTIONAL DESCRIPTION Relay circuit functions illustrated in Figure 3-1 are described in the following paragraphs.
  • Page 16: Instantaneous Output - Optional

    Breaker failure output relays, BF1 through BF3, are simultaneously operated when the associated logic AND function receives qualifying signals. Optional target indicators are mechanically latched whenever relays are energized and a minimum of 0.2 A flows through the output. Targets must be reset with the manual reset lever provided. BE1-50BF Functional Description...
  • Page 17: Current Sensing

    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 four 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 18: Installation

    Immediately upon receipt of a relay, visually inspect the relay for damage that may have occurred during shipment. If there is evidence of damage, immediately file a claim with the carrier and notify the Regional Sales Office, or contact the Customer Service Representative at Basler Electric, Highland, Illinois.
  • Page 19 Figure 4-1. S1 Case, Outline Dimensions, Front View BE1-50BF Installation...
  • Page 20 Figure 4-2. S1 Case, Double-Ended, Semi-Flush Mounting, Outline Dimensions, Side View Figure 4-3. S1 Case, Double-Ended, Projection Mounting, Outline Dimensions, Side View BE1-50BF Installation...
  • Page 21 Figure 4-4. S1 Case, Double-Ended, Panel Drilling Diagram, Rear View BE1-50BF Installation...
  • Page 22: Connections

    Except as noted above, connections should be made with minimum wire size of 14 AWG. Typical internal connections are shown in Figures 4-6 and 4-7. External connections are shown in Figures 4-8 through 4-11. BE1-50BF Installation...
  • Page 23 Figure 4-6. Typical Internal Connections, Sensing Input Type E BE1-50BF Installation...
  • Page 24 Figure 4-7. Typical Internal Connections, Sensing Input Type F BE1-50BF Installation...
  • Page 25 Figure 4-8. Control Circuit Connections (Typical) Non-Isolated Inputs BE1-50BF Installation...
  • Page 26 Figure 4-9. Control Circuit Connections (Typical) Isolated Inputs BE1-50BF Installation...
  • Page 27 Figure 4-10. Typical Connections Sensing Input Type E Figure 4-11. Typical Connections Sensing Input Type F 4-10 BE1-50BF Installation...
  • Page 28 Figure 4-12. Contact Sensing Modules, Power Supply Type Z BE1-50BF Installation 4-11...
  • Page 29: Testing

    Immediately upon receipt of a relay, visually inspect the relay for damage that may have occurred during shipment. 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.
  • Page 30 If supervisory contact sensing in supplied, open switch S1-1 and close S1-2. With NO current applied to any sensing inputs, apply a simulated supervisory signal to terminals 8 and 9. Instantaneous contacts should close briefly and INST target should be tripped. Reset target. This completes the operational test procedure. BE1-50BF Testing...
  • Page 31: Maintenance

    (refer to Section 5 for operational test procedure). If the relay fails to function properly, and factory repair is desired, contact the Customer Service Department of the Power Systems Group, Basler Electric, for a return authorization number prior to shipping.
  • Page 32: Manual Change Information

    Pickup Detector, Current Pickup Indicator, and Current Pickup Output. Added new power supply information to Section 3 in Power Supply paragraph starting with “Basler Electric enhanced the power supply design...”. Added new dimension figures to include all options available (S1 Double-Ended, and both mounting positions). Added shorting bars to both Internal Connection Diagrams.

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