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Basler BE1-25A Instruction Manual

Other manuals for BE1-25A: Instruction Manual
Manual is about: AUTO SYNCHRONIZER

Summary of BE1-25A

  • Page 1

    Instruction manual for auto synchronizer be1-25a publication: 9146600990 revision: m 05/08 www . Electricalpartmanuals . Com.

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    Www . Electricalpartmanuals . Com.

  • Page 3: Introduction

    9146600990 rev m be1-25a introduction i introduction this instruction manual provides information about the operation and installation of the be1-25a auto synchronizer. To accomplish this, the following information is provided: • general information and specifications • controls and indicators • fun...

  • Page 4

    Ii be1-25a introduction 9146600990 rev m first printing: july 1985 printed in usa © 2008 basler electric, highland illinois 62249 usa all rights reserved may 2008 it is not the intention of this manual to cover all details and variations in equipment, nor does this manual provide data for every poss...

  • Page 5: Revision History

    9146600990 rev m be1-25a introduction iii revision history the following information provides a historical summary of the changes made to the be1-25a instruction manual (9146600990). Revisions are listed in reverse chronological order. Manual revision and date change m, 05/08 • corrected max slip co...

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  • Page 7: Contents

    9146600990 rev m be1-25a introduction v contents section 1 • general information................................................................................................ 1-1 description...............................................................................................................

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    Vi be1-25a introduction 9146600990 rev m example parameters .................................................................................................................... 5-2 recommended procedure.....................................................................................................

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    9146600990 rev m be1-25a general information 1-1 section 1 • general information description a basic be1-25a auto-synchronizer consists of three rack-mounted modules that determine the proper time to initiate closing of a breaker to parallel a generator and a bus. The three standard modules are the ...

  • Page 10

    1-2 be1-25a general information 9146600990 rev m application general from large, single or multiple generators to small, multiple-unit applications, slip frequency synchronizers such as the be1-25a provide fast, accurate, synchronization of generator-to-bus or bus-to-bus breaker closures if a slip r...

  • Page 11

    9146600990 rev m be1-25a general information 1-3 application checklist when developing the appropriate operating parameters and safeguards for synchronizing a generator with a bus, the following items should be considered. 1. Secondary potential transformer voltage waveforms should be carefully comp...

  • Page 12

    1-4 be1-25a general information 9146600990 rev m most systems include a provision to permit closing only with the speed fast and voltage high. This allows the generator to pick up some watt and var load at once, thus stabilizing the system quickly. By contrast, when the speed is slow and the voltage...

  • Page 13

    9146600990 rev m be1-25a general information 1-5 figure 1-1. Slip, advance angle, and breaker closing time model and style number be1-25a auto-synchronizer style numbers define the features of a specific device. Each pair of characters within the style number is associated with a specific feature or...

  • Page 14

    1-6 be1-25a general information 9146600990 rev m when ordering, it is recommended that the style number be preceded by the model number. Accordingly, the style number now looks like: be1-25a a2 f5 v3 d1 where be1-25a = the model number a2 = 3-parameter voltage restraint f5 = both proportional correc...

  • Page 15

    9146600990 rev m be1-25a general information 1-7 specifications general specifications for the be1-25a system are provided in the following paragraphs. For specifications that apply only to particular options, see the ensuing subsection entitled specifications of options. Voltage sensing inputs 70-1...

  • Page 16

    1-8 be1-25a general information 9146600990 rev m 500 hz for a total of six sweeps, 15 minutes each sweep, without structural damage or performance degradation. Isolation 1,500 vac at 60 hz for one minute in accordance with iec 255-5 and ansi/ieee c37.90-1978 (dielectric test). Surge withstand capabi...

  • Page 17

    9146600990 rev m be1-25a general information 1-9 voltage acceptance option a2 bus voltage upper limit maximum threshold adjustable from 100 to 150 vac. Control bus voltage lower limit minimum threshold adjustable from 80 to 120 vac. Control voltage difference control minimum threshold adjustable fro...

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  • Page 19

    9146600990 rev m be1-25a human-machine interface 2-1 section 2 • human-machine interface controls and indicators a basic be1-25a synchronizer (without options) is shown in figure 2-1 and described in table 2-1. Figure 2-2 shows the test module in its offset position as required for testing. The rema...

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    2-2 be1-25a human-machine interface 9146600990 rev m figure 2-1. Location of controls and indicators www . Electricalpartmanuals . Com.

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    9146600990 rev m be1-25a human-machine interface 2-3 figure 2-2. Test module in test position www . Electricalpartmanuals . Com.

  • Page 22

    2-4 be1-25a human-machine interface 9146600990 rev m table 2-1. Sync acceptor, controls and indicators - continued locator control or indicator function b test jacks - continued 5. Gf>bf. When the module is in test position, provides the input terminals for a simulated gf>bf contact closure. In the ...

  • Page 23

    Table 2-1. Sync acceptor, controls and indicators - continued locator control or indicator function 9146600990 rev m be1-25a human-machine interface 2-5 e settings/readings chart - continued 0 (gen select): - continued after a generator is selected and the function select switch is depressed, the di...

  • Page 24

    Table 2-1. Sync acceptor, controls and indicators - continued locator control or indicator function 2-6 be1-25a human-machine interface 9146600990 rev m e settings/readings chart - continued 6 (lockout on/off): this register indicates whether or not the lockout feature is enabled. When enabled, the ...

  • Page 25

    Table 2-1. Sync acceptor, controls and indicators - continued locator control or indicator function 9146600990 rev m be1-25a human-machine interface 2-7 h lockout led this led lights to indicate the occurrence of a lockout condition. During lockout, the output of the relay is inhibited from signalin...

  • Page 26

    2-8 be1-25a human-machine interface 9146600990 rev m figure 2-5. Module a2 figure 2-4. Module a1 voltage acceptance module a2 voltage acceptance module a2 can use as many as three voltage parameters to add constraints to the issuance of breaker command signals. This option or option a1 is a prerequi...

  • Page 27

    9146600990 rev m be1-25a human-machine interface 2-9 figure 2-6. Module f5 frequency matching module f5 option f5 (figure 2-6) provides frequency-corrective (speed) and phase-corrective signals that are compatible with motor-operated machine speed controls. Effective with be1-25a relays, revision r ...

  • Page 28

    2-10 be1-25a human-machine interface 9146600990 rev m correction area correction area neg slip pos slip max slip max slip slip = 0 gf > bf sw open correction area correction area neg slip pos slip max slip max slip slip = 0 correction dead zone and synchronization zone correction dead zone and synch...

  • Page 29

    9146600990 rev m be1-25a human-machine interface 2-11 max slip 4 * max slip 4 * max slip 12.5% 25% 50% 2 * max slip 100% 50% 25% 12.5% max slip 2 * max slip pos slip (gf>bf) 100% target slip band min slip & sync range zero slip correction width setting value correction width setting value percentage...

  • Page 30

    2-12 be1-25a human-machine interface 9146600990 rev m 1/2 max slip 1/2 max slip max slip 4 * max slip 12.5% 25% 50% 2 * max slip 100% 50% 25% 12.5% max slip pos slip (gf>bf) 100% target slip band min slip & sync range percentage correction pulse width neg slip (gfslip inhibit led on slip inhibit led...

  • Page 31

    9146600990 rev m be1-25a human-machine interface 2-13 figure 2-11. Module v2 figure 2-12. Module v3 voltage matching module v2 option v2 (figure 2-11), like option v1, issues corrective signals that increase or decrease the generator voltage to within the voltage difference limit determined by the s...

  • Page 32

    2-14 be1-25a human-machine interface 9146600990 rev m figure 2-13. Pulse duration timing for option v3 figure 2-14. Module d1 dead bus module d1 when the external dead bus contact is closed, module d1 (figure 2- 14) determines when the bus is dead, and acts upon this determination (if the breaker is...

  • Page 33

    9146600990 rev m be1-25a functional description 3-1 section 3 • functional description system operation as the prime mover brings the oncoming generator up to speed, the be1-25a auto-synchronizer (figure 3-1) compares the generator output with the bus. When the monitored frequency and phase angle (a...

  • Page 34

    3-2 be1-25a functional description 9146600990 rev m a functional block diagram of the auto-synchronizer is given in figure 3-2, and is referred to in the circuit descriptions that follow. A black box approach is taken, with the emphasis on the inputs and outputs to the external world. Omitted from t...

  • Page 35

    9146600990 rev m be1-25a functional description 3-3 input circuits contact inputs at the upper left corner of figure 3-2 are the contact sensing inputs. Note that opto-isolators protect the internal circuits from the unwanted noise that is present on unconditioned lines. The inputs are: ! 52b ) an i...

  • Page 36

    3-4 be1-25a functional description 9146600990 rev m microprocessor circuitry the microprocessor, with the associated memory and decoding logic, performs all calculations, makes all decision, and controls the display and output circuitry. These functions are for the most part, determined by the softw...

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    9146600990 rev m be1-25a functional description 3-5 figure 3-3. Synchronizer flow diagram www . Electricalpartmanuals . Com.

  • Page 38

    3-6 be1-25a functional description 9146600990 rev m voltage acceptance module a1 with reference to figure 3-4: the sensed bus and generator voltages are rectified and output to the balance circuit. Any inequality detected in the balance circuit represents the voltage difference ()v) between the bus ...

  • Page 39

    9146600990 rev m be1-25a functional description 3-7 voltage acceptance module a2 note: the first three paragraphs below repeat the material on the previous page. The sensed bus and generator voltages are rectified and output to the balance circuit. Any inequality detected in the balance circuit repr...

  • Page 40

    3-8 be1-25a functional description 9146600990 rev m figure 3-7. Frequency match (module f5) block diagram frequency matching module f5 frequency correction a proportional correction pulse train is issued when the slip frequency is greater than 50 percent of the maximum slip frequency setting. The pu...

  • Page 41

    9146600990 rev m be1-25a functional description 3-9 voltage matching module v1 module v1 issues corrective signals to the generator control system that cause the voltage to approach the voltage of the bus. The corrective output signal is in the form of a continuous contact closure. This module is, i...

  • Page 42

    3-10 be1-25a functional description 9146600990 rev m voltage matching module v2 like the v1 module, module v2 issues corrective signals to the generator control system that cause the generator voltage to approach the voltage of the bus. In the case of this module, however, the corrective signal is n...

  • Page 43

    9146600990 rev m be1-25a functional description 3-11 voltage matching module v3 like the v2 module, module v3 issues corrective signals in the form of pulses to the generator control system. The corrective signals are used to adjust the generator voltage toward the voltage of the bus. In fact, this ...

  • Page 44

    3-12 be1-25a functional description 9146600990 rev m dead bus module d1 sensed bus voltage (upper left of figure 3-11) is rectified, scaled to logic levels, then presented to the comparator. The comparator determines whether or not the bus is dead, as defined by the setting of the volts control. Not...

  • Page 45: Section 4 • Installation

    9146600990 rev m be1-25a installation 4-1 section 4 • installation general when not shipped as part of a control or switchgear panel, the be1-25a auto-synchronizer is shipped in a sturdy carton to prevent damage during transit. Immediately upon receipt, check the model and style number against the r...

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    4-2 be1-25a installation 9146600990 rev m p0029-18 05-27-05 figure 4-1. Overall dimensions www . Electricalpartmanuals . Com.

  • Page 47

    9146600990 rev m be1-25a installation 4-3 figure 4-2. Cutout dimensions (for non-rack mounting) connections general incorrect wiring may result in damage to the unit. Connections for auto-synchronizer terminals are identified in figure 4-3. Terminals are suitable for use with wire sizes 14 awg or la...

  • Page 48

    4-4 be1-25a installation 9146600990 rev m note be sure the relay is hard-wired to earth ground with no smaller than 12 awg copper wire attached to the ground terminal on the rear of the relay case. When the relay is configured in a system with other protective devices, it is recommended to use a sep...

  • Page 49

    9146600990 rev m be1-25a installation 4-5 figure 4-4. Controlling 6 breakers with one be1-25a www . Electricalpartmanuals . Com.

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  • Page 51: Section 5 • Testing

    9146600990 rev m be1-25a testing 5-1 section 5 • testing general be1-25a auto-synchronizers are calibrated and tested for correct operation at the factory and all calibration pots are sealed. Im mediate ly upon re ceipt of the rela y, o r after exten ded service, it is recommended that the verificat...

  • Page 52

    5-2 be1-25a testing 9146600990 rev m sidebands (or jitter) ex ceed the max slip frequency , ov ershoot and prolonged delay in rec losing will likely oc cur. • because installations may have different characteristics, there is no standard value for the generator speed correction pulse width and inter...

  • Page 53

    9146600990 rev m be1-25a testing 5-3 caution before placing the auto-synchronizer into service, be sure that the lockout on/off register (6) is set to syste m requ irem ents . Wh en o ff , the auto-s ync hron izer is fre e to repe ated ly clos e the brea ker into a fault. Caution to test the be1-25a...

  • Page 54

    5-4 be1-25a testing 9146600990 rev m step 3. With the be1-25a now electrically isolated, sup ply op erating po we r to the unit by connecting 70-150 vdc or 90-132 vac (50/60 hertz) to the pow er jacks of the test module. The power supply m odule pow er led should be on to indicate that the be1-25a u...

  • Page 55

    9146600990 rev m be1-25a testing 5-5 fig ure 5-2. Te st s etu p f or ins talled u nit step 4. With th e sensing connectio ns to th e be1 -25a (via the rear case terminals) now disconnected , all inputs for testing must be supplied by the jacks of the test module. At this time the jacks have the foll...

  • Page 56

    5-6 be1-25a testing 9146600990 rev m note verification test procedures for auto-synchronizers prior to serial number 300, and for discontinued options b3, b5, f1, f2, f3, f4, and v4, are given in section 7. All option modules should not be installe d when perfo rming the bas ic verification tests be...

  • Page 57

    9146600990 rev m be1-25a testing 5-7 note if there is a slip rate, th e syn c led will b egin flashing (instead of extinguishing) as synchronization is detected. Note always load in all new bre aker timer setting s, a nd alw ays verify the active breaker by mom entarily selecting item d from the mcu...

  • Page 58

    5-8 be1-25a testing 9146600990 rev m note a stopwatch is recommended for the following steps. Note always load in all new bre aker timer setting s, a nd alw ays verify the active breaker by mom entarily selecting item d from the mcu readings menu. (breaker settings, unlike other setting s, m ust be ...

  • Page 59

    9146600990 rev m be1-25a testing 5-9 table 5-1. Adv ance a ngle test para meters (maxim um slip rate mu st be set at 0.500 he rtz.) sensed generator frequency (with b us at 60.00 h ertz.) advanced an gle (±3°) for indicated breaker closing times gen. Under gen. Over 1 00 m s 400 ms 7 00 ms 59.6 60.4...

  • Page 60

    5-10 be1-25a testing 9146600990 rev m step 4. Decrease the generator voltage towards 120 vac and observe that the high led turns off. Step 5. Set the bus voltage to 120 vac at 60.0 hertz, and the generator voltage to 120 vac at 60.10 hertz. Set the voltag e differenc e control to 1. Step 6. Increase...

  • Page 61

    9146600990 rev m be1-25a testing 5-11 voltage matching modu le v1 verification test an a1 o r a2 mo dule mu st be installed to perform this tes t. Step 1. Provide the tes t se tup illustrated in figure 5-1 , and m ove the test m odule into the offset (i.E., test) pos ition. Step 2. Set the simulated...

  • Page 62

    5-12 be1-25a testing 9146600990 rev m step 3. Connect an oscilloscope or frequency counter to the front panel jacks of the v3 mo dule. Note that the pulse width generated by this module for differences of less than 20 volts is determined by the following formula. Pulse width = ) v(pulse width contro...

  • Page 63: Section 6 • Maintenance

    9146600990 rev m be1-25a maintenance 6-1 caution substitution of printed circuit boards or individual components does not necessarily mean the relay will operate properly. Always test the relay before placing it in operation. Section 6 • maintenance general be1-25a auto-synchronizer relays require n...

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  • Page 65

    9146600990 rev m be1-25a relay differences 7-1 section 7 • relay differences general this section contains information concerning previous versions of the be1-25a auto-synchronizer relays. Product design changes synchronizer modules are the primary control modules of the original be1-25a auto-synchr...

  • Page 66

    7-2 be1-25a relay differences 9146600990 rev m figure 7-1. Be1-25a connection diagram (serial numbers 299 and lower) www . Electricalpartmanuals . Com.

  • Page 67

    9146600990 rev m be1-25a relay differences 7-3 figure 7-2. Be1-25a connection diagram (serial numbers 300 to 9616001n) www . Electricalpartmanuals . Com.

  • Page 68

    7-4 be1-25a relay differences 9146600990 rev m figure 7-3. Synchronizer module automatic synchronizer be1-25a auto-synchronizers, serial number 299 and previous use the synchronizer module shown in figure 7-3. A functional description and calibration instructions are provided in the following paragr...

  • Page 69

    9146600990 rev m be1-25a relay differences 7-5 figure 7-4. Synchronizer module (relays serial number 299 and lower) www . Electricalpartmanuals . Com.

  • Page 70

    7-6 be1-25a relay differences 9146600990 rev m the differentiator produces a dc voltage proportional to the rate of change of the input triangular waveform, and outputs this voltage to the breaker time compensation circuit, the in sync/in phase circuit, the comparator and the precision full wave rec...

  • Page 71

    9146600990 rev m be1-25a relay differences 7-7 note perform only those procedures that apply to your synchronizer and its installed options, and in the order the procedures are given. Note if an installation includes machines of diverse vintage or manufacture, attempts to adjust the frequency and/or...

  • Page 72

    7-8 be1-25a relay differences 9146600990 rev m figure 7-5. Module b3 figure 7-6. Module b5 breaker time equalization modules (options b3 and b5) beginning with serial number 300, options b3 and b5 were discontinued. For reference purposes, portions of an earlier edition of this manual that covered t...

  • Page 73

    9146600990 rev m be1-25a relay differences 7-9 figure 7-7. Module b3 block diagram figure 7-8. Module b5 block diagram b3 and b5 calibration (1) connect the oscilloscope or frequency counter to the synchronizer module front panel pin jacks. Set the trigger to detect negative going (+12 to o v) pulse...

  • Page 74

    7-10 be1-25a relay differences 9146600990 rev m figure 7-9. Module f1 figure 7-10. Module f3 frequency matching modules (options f1, f2, f3, and f4) description and application when the oncoming generator frequency is not within the paralleling tolerance, but is within +20% or -40% of the bus freque...

  • Page 75

    9146600990 rev m be1-25a relay differences 7-11 figure 7-11. Module f2 figure 7-12. Module f4 options f1 and f3 differ from f2 and f4 by not providing a direct signal to the summing input of the governor. Options f2 and f4 provide a bipolar dc voltage to the summing point of the prime mover gover- n...

  • Page 76

    7-12 be1-25a relay differences 9146600990 rev m the discriminator output is modified by the stability circuit (controlled by the front panel stability control) to produce the proper polarity signal for correcting the generator frequency. Unless inhibited by a dead bus or by a 52b relay contact signa...

  • Page 77

    9146600990 rev m be1-25a relay differences 7-13 warning do not attempt to use options f2 or f4 in any chassis of serial num- ber 300 up. On these units, terminal 1 is ground for the chassis. Figure 7-14. Module f4 block diagram f2 and f4 calibration (1) connect module f2 or f4 in accordance with fig...

  • Page 78

    7-14 be1-25a relay differences 9146600990 rev m note on the f2 and f4 modules, the waveform is not the summing point output but the input to the summing point driver. Figure 7-17. Module v4 figure 7-16. Pulse interval waveform voltage matching module v4 description and application option v4 modules ...

  • Page 79

    9146600990 rev m be1-25a relay differences 7-15 figure 7-18. Module v4 connection diagram www . Electricalpartmanuals . Com.

  • Page 80

    7-16 be1-25a relay differences 9146600990 rev m figure 7-19. Module v4 block diagram www . Electricalpartmanuals . Com.

  • Page 81: Appendix A

    9146600990 rev m be1-25a appendix a-1 Φ = × × 360 f t appendix a $ glossary this appendix provides definitions for selected nomenclature used in this manual. Advance angle. The angle in degrees prior to phase coincidence that the generator voltage waveform will change relative to the bus voltage wav...

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  • Page 83

    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 www . Electricalpartmanuals . Com.