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Basler BE1-25 Instruction Manual

Sync-check relay
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12570 Route 143 • Highland, Illinois 62249-1074 USA
Tel +1 618.654.2341 • Fax +1 618.654.2351
www.basler.com • info@basler.com
BE1-25
Sync-Check Relay
Instruction Manual
Publication
9170200990, Rev Y
Jul 2019

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Summary of Contents for Basler BE1-25

  • Page 1 BE1-25 Sync-Check Relay Instruction Manual 12570 Route 143 • Highland, Illinois 62249-1074 USA Publication Tel +1 618.654.2341 • Fax +1 618.654.2351 9170200990, Rev Y www.basler.com • info@basler.com Jul 2019...
  • Page 2 Please note that by posting this Proposition 65 warning, we are notifying you that one or more of the Proposition 65 listed chemicals may be present in products we sell to you. For more information about the specific chemicals found in this product, please visit https://www.basler.com/Prop65.
  • Page 3 9170200990 Preface This instruction manual provides information about the installation and operation of the BE1-25 Sync- Check Relay. To accomplish this, the following information is provided: • General information • Controls and indicators • Functional description • Installation • Testing •...
  • Page 4 The availability and design of all features and options are subject to modification without notice. Over time, improvements and revisions may be made to this publication. Before performing any of the following procedures, contact Basler Electric for the latest revision of this manual.
  • Page 5 • Corrected Figure 1-6, Style Chart • Added contact-sensing burden and enhanced Surge Withstand Capability description • Added new covers information • Changed Section 5, Testing to reflect the minimum voltage requirements for sync-check function BE1-25 Contents...
  • Page 6 Added footnote to power supply table and deleted the words make and from inductive contact specification • Corrected and clarified phase angle specifications • Corrected typographical errors on Slip Frequency graph • A, Nov-85 Added information to Figures 4-4, 4-9, and 4-10 • Added storage recommendation paragraph Contents BE1-25...

  • Page 7: Table Of Contents

    9170200990 Contents Introduction..............................1-1 Controls and Indicators ..........................2-1 Functional Description ..........................3-1 Installation ..............................4-1 Testing ................................ 5-1 Specifications ............................. 6-1 BE1-25 Contents...
  • Page 8 9170200990 Contents BE1-25...

  • Page 9: Introduction

    9170200990 1 • Introduction The BE1-25 is a solid-state synchronism check relay designed to permit breaker closure when the desired maximum phase angle conditions have held for a specified minimum time. The maximum allowable phase angle and time delay requirements can be set on front panel thumbwheel switches. Five voltage measuring options are available that identify significant line and bus voltage conditions, and this information is used to influence the relay output.
  • Page 10 It is permissible to operate the line input in either the same mode or a different mode than the bus input. This flexibility allows the BE1-25 to be used, for example, to close a generator breaker onto a dead bus, or to prevent closure if the generator and/or bus voltage is too high.
  • Page 11 Figure 1-3 shows closing zones obtained by combining average voltage difference, phase angle limit, and line and bus live/dead voltage limits. Figure 1-2. Closing Zone (Phasor Sensing) BE1-25 Introduction...
  • Page 12 Assuming that a constant voltage difference exists, the following condition is valid: If the magnitude of the line voltage decreases, the phase angle must also decrease to allow sync- acceptance. Therefore, the minimum line voltage possible for sync-acceptance occurs at zero phase angle. Introduction BE1-25...
  • Page 13 Figure 1-5. Closing Zone Diagram (Average Sensing) Output Relay The Voltage Monitor output relay option G or H provides additional supervision of the breaker closing circuit, or provides an indication of the existing voltage conditions for the supervisory control system. BE1-25 Introduction...
  • Page 14 Controls and Indicators chapter for location. Model and Style Number The electrical characteristics and operational features of the BE1-25 Sync-Check Relays are defined by a combination of letters and numbers that make up its Style Number. The model number, together with the Style Number, describes the options included in a specific device, and appears on the front panel, drawout cradle, and inside the case assembly.
  • Page 15 9170200990 Style Number Example The Style Number identification chart (Figure 1-6) defines the electrical characteristics and operational features included in BE1-25 relays. For example, if the Style Number were M9H-A6P-N4R0F, the device would have the following: BE1-25 Model Number (designates the relay as a Basler Electric, Class 100, Sync-Check Relay)
  • Page 16 9170200990 Introduction BE1-25...

  • Page 17: Controls And Indicators

    2 • Controls and Indicators BE1-25 controls and indicators are located on the front panel and right-side interior. The controls and indicators are shown in Figure 2-1 and Figure 2-2, and described in Table 2-1. Your relay may not have all of the controls and indicators shown and described here.
  • Page 18 A setting of 00 will inhibit closing of the SYNC output. POWER Indicator LED lights to indicate that the relay power supply is functioning properly. TIME DELAY Multiplier Explained above in B, TIME DELAY Selector. Switch Controls and Indicators BE1-25...
  • Page 19 DB/NOT OV setting that defines an overvoltage condition. DB/NOT OV Adjustment Continuously adjustable over the range of 10 to 135 Vac. Adjustment is by small screwdriver through an access hole in the front panel. CW rotation increases the voltage BE1-25 Controls and Indicators...
  • Page 20 NOT OV Mode has been previously selected on Mode Switch No. 1 or No. 2). The additional constraint is that the line and/or bus must not be in the overvoltage region. (This switch does not affect the Voltage Monitor Output relay.) Controls and Indicators BE1-25...
  • Page 21 If the relay has Output Option G or H: The Down (ON) position causes immediate actuation of the Voltage Monitor relay, if a live line/dead bus condition is detected with the breaker open. BE1-25 Controls and Indicators...
  • Page 22 If the relay has Output Option G or H: The Down (ON) position causes immediate actuation of the Voltage Monitor relay, if a dead line/dead bus condition is detected with the breaker open. Controls and Indicators BE1-25...

  • Page 23: Functional Description

    9170200990 3 • Functional Description BE1-25 Sync-Check Relays are static devices that use digital circuitry to provide a breaker closure signal when the phase and voltage difference between two voltage inputs, typically line and bus, are within preset limits. The functional block diagram in Figure 3-1 illustrates the overall operation of the BE1-25 Sync-Check Relay.
  • Page 24 Isolated sensing (Option 1-5), uses current supplied by the relay to monitor the isolated contacts. Non-isolated sensing (Option 1-4), monitors an external dc source whose nominal voltage is equal to the input to the BE1-25 power supply. Power Supply Operating power for the relay circuitry is supplied by a wide range, electrically isolated, low-burden power supply.
  • Page 25 The relay SYNC output is directly applied to drive the target indicator. The indicator is illuminated regardless of the amount of current flowing through the output contact. Current Operated Target A current operated target is triggered when at least 200 milliamperes of current flows through the SYNC output contact. BE1-25 Functional Description...
  • Page 26 9170200990 Note Prior to September 2007, BE1-25 the target indicator consisted of a magnetically latched, disc indicator. This mechanically latched target indicator has been replaced by the electronically latched LED target in use today. Functional Description BE1-25...

  • Page 27: Installation

    9170200990 4 • Installation BE1-25 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. If there is evidence of damage, file a claim with the carrier, and notify your sales representative or Basler Electric.
  • Page 28 9170200990 Figure 4-1. Panel Cutting/Drilling, Semi-Flush, S1 Case Installation BE1-25...
  • Page 29 9170200990 Figure 4-2. S1 Case Dimensions, Rear View, Double Ended, Semi-Flush Mount BE1-25 Installation...
  • Page 30 9170200990 1.95 6.19 (49.53) (157.2) (19.1) 10-32 SCREWS (7.9) 4.03 (102.4) 4.03 (102.4) 10-32 SCREWS (7.9) P0066-64 MOUNTING PANEL 2.195 (55.75) Figure 4-3. S1 Case Dimensions, Side View, Double Ended, Semi-Flush Mount Installation BE1-25...
  • Page 31 9170200990 Figure 4-4. Panel Cutting/Drilling, Double Ended, Projection Mount, S1 Case BE1-25 Installation...
  • Page 32 9170200990 Figure 4-5. S1 Case Dimensions, Rear View, Double Ended, Projection Mount Installation BE1-25...
  • Page 33 5/16-18 STUD 2 PLACES (102.4) (6.4) 4.03 (102.4) 10-32 SCREWS (7.9) TERMINAL EXTENSION (TYP.) FOR DETAILED INSTRUCITONS, SEE THE TERMINAL PROJECTION MOUNTING KIT SUPPLIED. P0066-67 2.195 (55.75) Figure 4-6. S1 Case Dimensions, Side View, Double Ended, Projection Mount BE1-25 Installation...
  • Page 34 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 and internal connections are shown in the following figures. Installation BE1-25...
  • Page 35 OPTO- OPTO- OPTO- OPTO- OPTO- OPTO- ISOLATOR ISOLATOR ISOLATOR ISOLATOR ISOLATOR ISOLATOR EXTERNAL CASE GROUND TERMINAL INTERNAL CIRCUITRY LINE EXTERNAL CONTACT INPUTS FROM RESISTOR MODULE VOLTAGE MONITOR TARGET POWER SYNC SUPPLY D2819-03 LINE 08-29-02 Figure 4-8. Internal Diagram BE1-25 Installation...
  • Page 36 4-10 9170200990 Figure 4-9. Voltage Sensing Connections Installation BE1-25...
  • Page 37 9170200990 4-11 Figure 4-10. Control Circuit Connections (Typical) BE1-25 Installation...
  • Page 38 In planning the installation, reserve a clear space directly behind the relay or behind the mounting panel if projection mounted, since the Resistor Module will give off some heat during use. Figure 4-11. Resistor Module Connections Installation BE1-25...
  • Page 39 Figure 4-12. Contact Sensing and Resistor Modules for Type T Power Supply Only Maintenance BE1-25 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.
  • Page 40 4-14 9170200990 Installation BE1-25...

  • Page 41: Testing

    It is recommended to use a separate ground lead to the ground bus for each relay. Switch Settings Setting Time Delay or Phase Angle Figure 5-1 graphically relates time delay settings to phase angle settings in terms of slip frequency. BE1-25 Testing...
  • Page 42 Condition Switch No. 2 must be in OFF position. Otherwise, the Sync function will be overruled. If the condition switches are external (option 2-C, 2-U, or 2-V), the external LL-LB switch should be omitted when Sync and Voltage Monitor contacts are in parallel. Testing BE1-25...
  • Page 43 If equipped with power supply status output (option 3-6), verify that the power supply status output contacts are open. Remove input power and verify that the status contacts close. Apply power to the relay. Figure 5-2. Test Setup (Typical) BE1-25 Testing...
  • Page 44 (fully CW) position. Adjust line and bus sensing inputs to 10 Vac. Rotate the LL and LB controls CCW until their indicators LEDs turn ON. This should occur only a few turns from the minimum (fully CCW) position. Testing BE1-25...
  • Page 45 5 Up Mode Switch 1 Up 2 Up Output* only when bus input voltage is greater than 80 volts and line is less than 30 volts. Condition Switch 1 Up 2 Up 3 Down 4 Up 5 Up BE1-25 Testing...
  • Page 46 Condition Switch No. 2, shown in the Controls and Indicators chapter, must be OFF (Up) when output option E or F is selected. Otherwise, SYNC outputs will occur under live line/live bus conditions without benefit of the Sync-Check function. Testing BE1-25...
  • Page 47 1 Up 2 Up 3 Down 4 Up 5 Up Mode Switch† 1 Down 2 Down Output∗ only when bus input voltage is less than 80 volts and line is greater than 80 volts but less than 120 volts. BE1-25 Testing...
  • Page 48 Contact is SYNC output for output option E or F. Voltage Monitor output for output option G or H. † Placing both bus and line NOT OV Mode Switches Down, does NOT imply that line and bus must operate in the same mode. Any combination is permissible. Testing BE1-25...
  • Page 49 Voltage Monitor output options G and H. If the delta voltage option is present, it is factory set to 20 volts. (The timed SYNC output is inhibited if the voltage difference between the line and the bus is greater than 20 volts.) BE1-25 Testing...
  • Page 50 5-10 9170200990 Testing BE1-25...

  • Page 51: Specifications

    9170200990 6 • Specifications BE1-25 Sync-Check Relays electrical and physical specifications are described below. Operational Specifications Phase Angle Selection Accuracy ±0.5° or ±5.0% of the front panel setting for degrees, whichever is greater, for a nominal input frequency of 50/60 hertz, a sensing input range of 80 to 135 volts, and at 25°C.
  • Page 52 T (high-range) 240 Vac 90 to 270 Vac 17.4 VA * Type R power supply may require 14 Vdc to begin operation. Once operating, the voltage may be reduced to 12 Vdc. † Value represents highest-burden style options. Specifications BE1-25...
  • Page 53 10 to 500 Hz for six sweeps, 15 minutes each sweep without structural damage or degradation of performance. Weight 13.7 lb (6.2 kg), maximum. Case Size S1 (Refer to the Installation chapter for case dimensions.) BE1-25 Specifications...
  • Page 54 9170200990 Specifications BE1-25...
  • Page 56 Highland IL 62249-1074 USA Suzhou Industrial Park 15-06 Peninsula Plaza Tel: +1 618.654.2341 215122 Suzhou Singapore 179098 Fax: +1 618.654.2351 P.R. CHINA Tel: +65 68.44.6445 email: info@basler.com Tel: +86 512.8227.2888 Fax: +65 68.44.8902 Fax: +86 512.8227.2887 email: singaporeinfo@basler.com email: chinainfo@basler.com...