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Basler BE1-25 Instruction Manual

Sync-check relay
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INSTRUCTION MANUAL
for
SYNC-CHECK RELAY
BE1-25
Publication: 9 1702 00 990
Revision: M
02/2001

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Summary of Contents for Basler BE1-25

  • Page 1 INSTRUCTION MANUAL SYNC-CHECK RELAY BE1-25 Publication: 9 1702 00 990 Revision: M 02/2001...
  • Page 2 INTRODUCTION This manual provides information concerning the operation and installation of BE1-25 Sync-Check Relays. To accomplish this, the following is provided. • Specifications • Functional Description • Mounting Information • Testing Procedures WARNING! TO AVOID PERSONAL INJURY OR EQUIPMENT DAMAGE, ONLY QUALIFIED PERSONNEL SHOULD PERFORM THE PROCEDURES PRESENTED IN THIS MANUAL.
  • Page 3 First Printing: 1995 Printed in USA © 1995 - 2001 Basler Electric Co., Highland, IL 62249 February 2001 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

    RELAY OPERATING PRECAUTIONS ...................... 1 DIELECTRIC TEST ........................... 1 MOUNTING ............................... 1 Relay ..............................1 Resistor Module ............................. 1 Contact Sensing Module ........................2 CONNECTIONS ............................7 SECTION 5 • TESTING..........................1 GENERAL..............................1 RELAY OPERATING PRECAUTIONS ...................... 1 SWITCH SETTINGS..........................1 BE1-25 Introduction...
  • Page 5 IN-HOUSE REPAIR ........................... 1 STORAGE ..............................1 TEST PLUG ............................... 1 TEST PLUG ADAPTER ..........................2 General..............................2 Assembling Adapter to Test Plug ......................3 If Test Plug Adapter is Unavailable ......................3 SECTION 7 • MANUAL CHANGE INFORMATION .................. 1 BE1-25 Introduction...

  • Page 6: Section 1 • General Information

    Supervising fast transfer schemes, where fast pickup and dropout of the phase measuring circuit are required. If optional voltage measuring circuits are incorporated, the BE1-25 can determine whether an input is live, dead, or in an overvoltage state. SYNC-CHECK FUNCTION NOTE Voltage sensing circuits are guaranteed to operate at a minimum voltage of 60 volts.

  • Page 7: Contact Sensing

    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 8: Condition Switches

    (as compared to a simple sync-check acting alone). Figure 1-2 shows closing zones obtained by combining phasor voltage difference, phase angle limit, and line and bus live/dead voltage limits. Figure 1-3 shows closing zones BE1-25 General Information...

  • Page 9: Option 2-R, 2-T, Or 2-U (Phasor Voltage Difference)

    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. BE1-25 General Information...

  • Page 10: Option 2-A, 2-B, Or 2-C (Average Voltage Difference)

    Figure 1-5 may be used as an aid in formulating the voltage difference control settings. Note that the center reference phasor (V ) represents the monitored bus voltage, while the adjacent phasor (V represents the monitored line voltage. The voltage difference control (∆V) forms an area of acceptance limit. BE1-25 General Information...

  • Page 11: Output Relay

    Detailed instructions and precautions for setting the Mode switches and Condition switches are provided in Table 2-1, callouts R and S. The location of the switches is shown in Figure 2-2. Voltage sensing connections are shown in Figure 4-8. BE1-25 General Information...

  • Page 12: Other Options

    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 General Information...
  • Page 13 BE1-25 Model Number (designates the relay as a Basler Electric, Class 100, Sync-Check Relay) Single-phase sensing Expandable phase angle window Voltage Monitor relay and Push-to-Energize outputs A6 0.1 to 99 seconds timing range Operating power derived from 125 Vdc or 100/120 Vac...

  • Page 14: Specifications

    62 to 280 Vdc 5.0 W 240 Vac 90 to 270 Vac 12.0 VA † Type R power supply initially requires 14 Vdc to begin operating. Once operating, the voltage may be reduced to 12 Vdc and operation will continue. BE1-25 General Information...
  • Page 15 This setpoint does not vary more than 3% from a reading at 25°C over the limited range of +15 to +40°C. 1-10 BE1-25 General Information...
  • Page 16 15 minutes each sweep, without structural damage or degradation of performance. Operating Temperature -40°C (-40°F) to 70°C (158°F). Storage Temperature -65°C (-85°F) to 100°C (212°F). Weight 13.7 pounds maximum. Case Size BE1-25 General Information 1-11...

  • Page 17: Section 2 • Human-Machine Interface

    SECTION 2 • HUMAN-MACHINE INTERFACE CONTROLS AND INDICATORS Table 2-1 lists and briefly describes the operator controls and indicators of the BE1-25 Sync-Check Relay. Reference the callouts A through P to Figure 2-1 and Q through S to Figure 2-2.
  • Page 18 Continuously adjustable over a range of 10 to 135 Vac. Adjustment is by small screwdriver through an access hole in the front panel. CW rotation increases voltage setting. V Indicator Red LED lights whenever the (optional) Voltage Monitor Output relay is energized. BE1-25 Human-Machine Interface...
  • Page 19 (1) A high voltage threshold is established by front panel controls, above which the bus (or line, as the case may be) is considered live; (2) A low voltage threshold is established by front panel controls, below which the bus (or line) is considered dead. BE1-25 Human-Machine Interface...
  • Page 20 (OFF) 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. No switch or contact should be connected to the LL-LB input terminal in this case. BE1-25 Human-Machine Interface...
  • Page 21 If relay has Output Option G or H: The ON (Down) position causes immediate actuation of the Voltage Monitor relay, if a live line/dead bus condition is detected with the breaker open. BE1-25 Human-Machine Interface...
  • Page 22 If relay has Output Option G or H: The ON (Down) position causes immediate actuation of the Voltage Monitor relay if a dead line/dead bus condition is detected with the breaker open. BE1-25 Human-Machine Interface...
  • Page 23 BE1-25 D1057-11 2-19-92 Figure 2-1. Location of Controls and Indicators (Front Panel View) BE1-25 Human-Machine Interface...
  • Page 24 BE1-25 D1057-12 2-19-92 Figure 2-2. Location of Controls and Indicators (Interior View) BE1-25 Human-Machine Interface...

  • Page 25: Section 3 • Functional Description

    SECTION 3 • FUNCTIONAL DESCRIPTION GENERAL 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 26: Minimum Voltage Detection

    BE1-25 power supply. 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 27: Power Supply Status Output Option

    Voltage difference average detectors provide the same functionality as the peak detector inputs except they measure the average voltage difference instead of phasor voltage difference. Selection Logic Voltage monitor selection logic is controlled by Mode and Condition switches or External Condition Switches to produce the Voltage Monitor output. BE1-25 Functional Description...

  • Page 28: Target Indicator Option

    (The series impedance of the reed relay is less than 0.1 ohm.) Current in the output circuit must be limited to 30 amperes for 0.2 seconds, 7 amperes for 2 minutes, and 3 amperes continuously. BE1-25 Functional Description...

  • Page 29: Section 4 • Installation

    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. For more information, see Section 6, Maintenance. When the BE1-25 is to be placed in service, it is recommended that the Operational Test Procedure be performed prior to installation.

  • Page 30: Contact Sensing Module

    Further installation information for the contact sensing module is contained in Publication 9 1702 06 990, which is packed with the module. P0002-12 01-31-01 Figure 4-1. S1 Case, Outline Dimensions Front View BE1-25 Installation...
  • Page 31 Figure 4-2. S1, Double-Ended, Semi-Flush Mounting, Side View CASE DETAIL A-A SHOWING THE ADDITION OF WASHERS OVER THE BOSS TO TIGHTEN THE RELAY AGAINST THE PANEL. P 0 0 0 2 - 1 7 01-30-01 Figure 4-3. S1 Case, Double-Ended, Projection Mounting, Side View BE1-25 Installation...
  • Page 32 5.69 (144.5) 2.84 (72.1) 8.25 (209.6) 8.63 (219.1) 4.13 4.31 (104.8) (109.5) .25 (6.35) DIA. 3.03 4 PLACES (77.0) 6.06 D1427-04 (154.0) 1-23-93 Figure 4-4. S1 Case, Panel Drilling Diagram Semi-Flush Mounting BE1-25 Installation...
  • Page 33 D 1 4 2 7 - 0 5 (133.4) 0 1 - 3 0 - 0 1 Notes: Optional rectangular cutout may replace the ten drilled holes. Terminal numbers shown are as viewed from rear of relay. Figure 4-5. Panel Drilling Diagram (Projection Mounting) BE1-25 Installation...
  • Page 34 Figure 4-6. S1 Case, Double-Ended, Projection Mounting, Outline Dimensions, Rear View BE1-25 Installation...

  • Page 35: Connections

    Except as noted above, connections should be made with minimum wire size of 14 AWG. Typical internal connections are shown in Figure 4-7. Typical external connections are shown in Figures 4-8 through 4- 11. Be sure to use the correct input power for the power supply specified. BE1-25 Installation...
  • Page 36 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 08-14-98 Figure 4-7. Internal Diagram BE1-25 Installation...
  • Page 37 PHASE ANGLE VOLTAGE BE1-25 SENSING LINE LEGEND: SYNC-CHECK RELAY BE1-25 SHOWN LINE-TO-NEUTRAL. COULD ALSO D1058-07 BE WIRED LINE-TO-LINE. 2-18-92 Figure 4-8. Voltage Sensing Connections BE1-25 Installation...
  • Page 38 NOTE The Resistor Module shown in Figure 4-8 is required for BE1-25 Sync-Check relays, Voltage Monitor option 2-C, 2-U, or 2-V. When the relay is to be projection mounted (see Figure 4-3), the Resistor Module must be removed prior to installation. Once the relay is installed, the Module is then attached to the rear of the mounting panel.
  • Page 39 CONTROL BUS EXPAND OPTION AND AUXILIARY RELAY ARE MUTUALLY EXCLUSIVE OPTIONAL VOLTAGE MONITOR RELAY CONTROL BUS OPTIONAL INPUTS CONTACT SENSING RESISTOR MODULE POWER 52CC BE1-25 ISOLATED INPUTS D1057-09 3-12-92 CONTROL BUS Figure 4-10. Control Circuit Connections (Typical) BE1-25 Installation 4-11...
  • Page 40 Figure 4-11. Contact Sensing and Resistor Modules For Type T Power Supply Only 4-12 BE1-25 Installation...

  • Page 41: Section 5 • 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 And Mode Switches

    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. BE1-25 Testing...

  • Page 43: Operational Test Procedure

    (e) Apply power to the relay. (f) If equipped with power supply status output (option 3-6): verify that the power supply status output contacts are open. (g) Remove input power and verify that the status contacts close. (h) Apply power to the relay. BE1-25 Testing...

  • Page 44: Test Procedure

    COM. TB2 TERM. STRIP EXPAND (AT REAR OF CASE) PHASE LINE ANGLE POLARITY OPTION BE1-25 RELAY SYNC USE OF TERMINAL OUTPUT WILL VARY DEPENDING ON OPTIONS. LINE AND BUS VOLTAGE AUXILIARY SYNC OUTPUT (MAY BE FORM A, B, OR C,...

  • Page 45: Normal Mode Testing

    LED just lights. (Reference callouts L, N, F, and G of Figure 2-1.) Adjust to 80 Vac. DB/NOT OV: Adjust to 30 Vac. Adjust to 80 Vac. DL/NOT OV: Adjust to 30 Vac. BE1-25 Testing...
  • Page 46 Output* only when bus input voltage is greater than 80 volts and line is less than 30 volts. Condition Switch Down Mode Switch Output* only when bus input voltage is less than 30 volts and line is greater than 80 volts. Condition Switch Down Mode Switch BE1-25 Testing...

  • Page 47: Not Ov Testing

    (without unwanted SYNC outputs). (c) Apply simulated line and bus voltages adjusted to check the bus and line voltage criteria given in Table 5-2. To be valid, an output must occur immediately after line and bus voltages are applied. BE1-25 Testing...
  • Page 48 60 volts. Condition Switch Down Mode Switch† Down Down Output* only when bus input voltage is less than 60 volts and line is greater than 60 volts but less than 120 volts. Condition Switch Down Mode Switch† Down Down BE1-25 Testing...
  • 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: Section 6 • Maintenance

    Test plugs (Basler P/N 10095 or GE model XLA12A) provide a quick, easy method of testing relays without removing them from their case. Test plugs are simply substituted for the connection plugs. This provides access to the external stud connections as well as to the internal circuitry.

  • Page 51: Test Plug Adapter

    TEST PLUG ADAPTER General BE1-25 relays equipped with external contacts to control the Condition Switches (option 2-C, 2-U, or 2-V) have a voltage-dropping Resistor Module mounted externally on the back side of the case. (Refer to Figures 4-7 and 4-9). Functionally, this module is part of the internal circuitry despite its external location.

  • Page 52: Assembling Adapter To Test Plug

    CONTACT SENSING (OPTION 1-5). NO RESISTOR REQUIRED FOR 24 V POWER SOURCE. POWER SUPPLY RESISTOR VOLTAGE VALUE 48 V 750, 10 W 125 V 5K, 10 W D474-005 230 V 10K, 25W 2-18-92 Figure 6-2. Improvised Test Setup BE1-25 Maintenance...

  • Page 53: Section 7 • Manual Change Information

    Section 4 to new Section 5 Testing. Added new outline dimensions to include all options (S1 Case, Double-Ended, Semi-flush and Projection Mounting). Corrected ground symbol in Figure 4-7, Internal Diagram. Updated front cover and Manual Change Information. BE1-25 Manual Change Information...
  • Page 54 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 Manual Change Information...
  • Page 55 DOCUMENTATION SURVEY COMMENTS AND ERRORS Thank you for using Basler Electric products. We want you to be satisfied, and ask that you provide us with some feedback. Please answer the questions in the following form, and mail it to: Basler Electric...
  • Page 56 Status Output is not available (a zero must be in the tenth position of the Style Number). Case size Basler Electric relays are housed in a fabricated steel and phenolic enclosure (case) designed for the specific relay requirements. Case sizes are referenced to an alpha-numeric code for ease of identification.
  • Page 57 Style Number defines the target type; Type A is internally operated. Isolated contact sensing With this configuration of the 52b input, the BE1-25 monitors a current supplied by the relay through an isolated contact. The eighth position of the Style Number selects the contact sensing; option 1-5 is isolated contact sensing.
  • Page 58 Non-isolated contact sensing With this configuration of the 52b input, the BE1-25 monitors the presence of dc voltage at the input due to the closure of a contact. The eighth position of the Style Number selects the contact sensing; option 1-4 is non-isolated contact sensing.
  • Page 59 0.1 - 99 sec., adjustable from 1 to 99 sec when multiplier switch is in X1 position; 0.1 to 9.9 when in X1.0 position 1 - 99 cycles, adjustable in 1-cycle increments. Multiplier switch is omitted with this option. BE1-25 Glossary...
  • Page 60 Resistor Module. Zero cross detection circuits Each time that the input ac signal crosses through the zero reference voltage as it is going from negative to positive, a pulse is generated that marks the start of the ac signal. BE1-25 Glossary...
  • Page 61 Index MAINTENANCE, 1 Minimum Voltage Detection, 2 Mode Switch, 6 Mode switches, 6 Mode Switches, 2 Adapter and Test Plug, 2 model and Style Number, 1, 7, 1 allowable phase angle, 2 MODEL AND STYLE NUMBER, 7 APPLICATION, 1 MOUNTING, 1 block diagram, 1 Non-isolated contact sensing, 2 Block Diagram, 2...
  • Page 62 Type T power supply, 1, 2 Type T Power Supply, 12 Voltage Difference, 3 voltage monitor, 5 Voltage Monitor, 3 VOLTAGE MONITOR, 2 Voltage Sensing Connections, 9 Zero-Cross and Phase Difference Measurement, 1 2 • SECTION 7 ( Manual Change InformationInstruction Manual BE1-25 Sync-Check Relay...
  • Page 63 ROUTE 143, BOX 269 HIGHLAND, IL 62249 USA http://www.basler.com, info@basler.com PHONE 618-654-2341 FAX 618-654-2351...

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