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Bulletin No. 18KApplication Information
Typical Wiring Interface When Using a Woodward 2301A Governor/Load Sharing Controlparalleled with a Pow-R-Con TM.
DYNA 283-1
DYNA II Pow-R-Con
The DYNA II Pow-R-Con can be used with the Wood-ward 2301A Governor/Load Sharing Control in paral-lel gen-set application. The Pow-R-Con and appli-cable governor will provide automatic synchronizing,load sharing, soft loading/unloading, and load man-agement for generator set systems. The Pow-R-Coneliminates the risk of operator error inherent withmanual paralleling systems.
Figure 1 illustrates the wiring of one gen-set using aPow-R-Con with a DYNA 1 governor control and aWoodward 2301A Governor/Load Sharing Control.Additional engine generator sets can be paralleled bywiring them at the points designated, PARALLELINGLINES TO OTHER SYSTEMS.
CAUTIONIt is recommended that an independent overspeeddevice be incorporated in every engine controlsystem.
1. If more than one engine is started using the samebattery supply, use separate battery supply forthe governor system. Twist power leads and useshield cables as shown.
2. Using Pow-R-Con select current transformers toprovide 5.0 amps at full rated load. Currenttransformers require 1.25 VA/PHASE at 5.0 amps.
3. Observe current transformer polarity markingswhen connecting.
4. Power switch current rating: 15 amps.
5. Phasing of voltage potential to Terminals 1, 2and 3 is necessary to keep each signal in itscorrect phase relationship. The Pow-R-Con canbe calibrated to accept 120 to 480Vac. If step-down transformers are used, the Pow-R-Con willrequire1 Va/phase (nominal).
6. Droop/Isochronous switch is not required if unitsare always operated in the isochronous mode.
7. Pow-R-ConTM models (also see DYNA 259 orDYNA 265)DYN2-94025 (module with display and program-ming panel)DYN2-94026 (module without display and pro-gramming panel)DYNK-55100 (display and programming panel)DYNA-29900 (includes both DYN2-94026 andDYNK-55100)
8. Closing terminal 38 (synch enable) to terminal 39(common) activates the Pow-R-Con's synchro-nizer. The phase and frequency of the incominggenerator are controlled and a contact is closed todrive a circuit breaker. Once the circuit breaker isclosed, the contact between 38 and 39 should beopened.
9. Phasing of voltage potential to the terminals 8 and9 is necessary to keep each signal in its correctphase relationship. The Pow-R-Con can be cali-brated to accept 120 to 480 Vac. If step-downtransformers are used, the Pow-R-Con will re-quire 1 Va/phase (nominal).
10. Connections to Pow-R-Con terminals 1, 2, and 3must be the same voltage potential that is appliedto terminals 8 and 9. Applying generator voltagewithout applying bus voltage may cause the en-gine to run faster or slower than the desired speed.However, when bus voltage is applied, the Auto-synchronizer will change engine speed to quicklymatch the generator to the bus frequency.
Notes
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The following should be completed to allow for paralleling the Pow-R-Con to the Woodward 2301A.
1. Wire per standard Pow-R-Con installation procedure with exception of adding the circuit
as shown in figure 1. Consult Woodward 2301A manuals/wiring diagrams for details on
installa tion.
2. The gain (parallel line voltage) of the Pow-R-Con will need to match to that of the 2301A. For
example, typically Barber-Colman systems would see 3 volts on the parallel lines at full load.
3. Verify the voltage on the 2301A and confirm that it is 12.9 VDC to Common. The closer the zener
diode matches the 2301A voltage the less frequency offset when paralleled.
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Figure 1. TYPICAL WIRING INTERFACE USING A WOODWARD 2301A GOVERNOR/LOAD SHARING CON-
TROL PARALLELED WITH A POW-R-CON.
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DYNA 283-1
As a safety measure, the engine should be equipped with an independent overspeed shutdown device in the event offailure which may render the governor inoperative.
CAUTION
Barber-Colman believes that all information provided herein is correct and reliable and reserves the right to update at any time. Barber-Colman does not assume any responsibility for its use unless otherwise expressly undertaken.
NOTE
1354 Clifford Avenue (61111) Telephone (815) 637-3000P.O. Box 2940 Facsimile (815) 877-0150Loves Park, IL 61132-2940United States of America www.dynaproducts.com
In Europe contact: Barber-Colman GmbHAm Neuen Rheinhafen 4, D-67346 Speyer, GermanyTelephone 06232 29903, Facsimile 06232 299155
In Japan contact: Ranco Japan Ltd.Shiozaki Bldg. 7-1, 2-chome, Hirakawa-Cho, Chiyoda-KuTokyo 102, JapanTelephone 3261 4293, Facsimile 3264 4691
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Aerospace & Power Controls DivisionDYNA Product Group
Barber-Colman Company
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