EA06 (220V) Generator Automatic Voltage Regulator Operation Manual

Transcription

1 EA0 (220V) Generator Automatic Voltage egulator Operation Manual uitable for ingle or hree Phase elf Excited rushless Generator Compatible replacement for Mecc Alte UV * ot a genuine Mecc Alte product. Headquarters : o., Lane 20, Chien Fu t., Chyan Jenn Dist., Kaohsiung, AIWA el : Fax : UL :

2 ECIO : UMMAY EA0220V is equipped with separate sensing inputs (2,, terminals.. phase), which can survey from single up to three phase voltages and check the average voltage from Y, YY or wiring accordingly to the generator requirement or user preference. ECIO 2 : PECIFICAIO ensing Input (2,, ) oft tart amp ime Voltage Vac / Vac sec. or phase selectable by wiring Frequency 0 / 0 Hz Unit Power Dissipation Max. watts Power Input (, 2) Voltage Vac EMI uppression Frequency 0 / 0 Hz Internal EMI filtering he AV is equipped with adjustable under frequency protection and over voltage protection to prevent generator from overloading and over excitation. he LED each represents (Green) normal operation, (ed) under frequency and (Yellow) over excitation. he built in EM filter helps to prevent possible interference from the AV to the generator. Output (, ) Over Excitation Protection Voltage Max. input 220 Vac sec Current Continuous A Intermittent 7A for 0 sec. Under Frequency Protection esistance 0 00 ohms Adjustable range 2 2 Hz Fuse pec. x 20mm 0.A / 20V (slow blow type) Environment Operation emperature 0 C Voltage egulation torage emperature 0 80 C < / % ( with % engine governing ) elative Humidity Max. 9% Vibration. 0 Hz uild Up Voltage Hz esidual voltage at AV terminal > 2 Hz Dimensions hermal Drift 0.0 (L) x.0 (W) x.0 (H) mm 0.0% per C change in AV ambient Weight External Volts Adjustment 0 g / 2% / % 00K ohms /2 watt potentiometer EA AEIO. AV can be mounted directly on the engine, genset, switchgear, control panel, or any position that will not affects operation. For dimension reference, please see Figure. 2. All voltage readings are to be taken with an averagereading voltmeter Meggers and highpotential test equipment must not be used. Use of such equipment could damage the AV.. ecure all wiring connection. Do not install AV at a place with high vibrations to prevent loose. connections. For safety do not touch the heat sink while in operation. Outline and Drilling Diagram Figure 2 EA0220V

3 ECIO : WIIG / ADJUME. Excitation Wiring,.. Connect AV terminal to field, connect AV terminal to the field. OE he Exciter field resistance is between 0 00 ohm...2 If field resistance is less than 0 ohm when generator is under full load and the field voltage is under the maximum output, please series a suitable wattage (W) resistor to have the overall field resistance to equal to 0 00 ohm..2 ensing / Power Input 2,,.2. otal of sets of independent sensing inputs, each input voltage equals to 220V (Center), can be series into Y or to connect to the generator output ( Phases) for example,,, or joint connected into a single phase sensing (ee Figure 2 to )..2.2 erminal, 2 is the AV power input, voltage range from 0 280V.. Frequency election (0 Hz) When the 2 terminals marked as 0 Hz on the AV is bridged, the system frequency is 0 Hz. In the contrary, when bridge is removed the system frequency is 0 Hz.. External Voltage Adjustment V Connect a 00K Ohms /2W voltage rheostat at V terminals to enable a / % voltage adjustment from rated voltage. * he terminals must be bridged when the external voltage adjustment function is none required.. erminals, 0 can remain not connected. VOL. Voltage Adjustment User can adjust the generator voltage by rotating the VOL potentiometer on the AV. otate the potentiometer clockwise to increase voltage and decreasing when rotate counterclockwise. he voltage adjust rate is less than % when the power factor equals to to 0.8 (PF to 0.8) and frequency variation within %..7.2 Analogue type multi voltmeter is suggested when adjusting the voltage stability. Adjust the A potentiometer until the pointer on the multi voltmeter is oscillating to its minimal..8 Circuit Protection.8. AMP. Over Excitation Protection Adjustment (Overload protection) et the AMP Overload protection value (2 to Vdc) according to the generator maximum excitation voltage. When over excitation occurs wait for 20 seconds then decrease the generator voltage to 0 to 0 Vac. When the Over excitation protection is activated the yellow LED will illuminate, the higher the over excitation value is the shorter delay time becomes. he generator will require stopping operation to reset..8.2 Hz. Under Frequency Protection Adjustment Hz. Is used to set the under frequency protection knee point. When the generator frequency declines to setting point, the generator voltage will also decrease in the same time to prevent high excitation current from damaging the AV or the exciter, adjustment procedure : Adjustment procedure : () tart generator and let voltage build up. (2) Adjust engine frequency to the appropriate low frequency value. () lowly adjust Hz. Potentiometer until the red LED illuminates. ECIO : OPEAIO POCEDUE. Please confirm the follow condition before starting the generator :.. tarting etting () Confirm if the AV specification conforms to the system requirements? (2) Confirm the AV wiring? () Confirm correct frequency selected? () Confirm the generator rated voltage with the AV sensing input? () Adjust VOL potentiometer fully counterclockwise? Adjust A potentiometer to the center position? Adjust AMP potentiometer fully clockwise?.7 A. tability Adjustment.7. lowly and precise adjustment of A potentiometer can change the respond time between the AV and generator. Inadequate adjustment will cause voltage instability and over adjusting will cause sudden overly voltage variation under heavy load. EA0220V

4 ..2 tarting Generator () econfirm all setting and wiring. AEIO he AV reading AC voltage are all average value. (2) tart generator and adjust to rated frequency. he first measured voltage value should be under the rated voltage. If not, then reconfirm the start setting. () lowly adjust VOL potentiometer to the rated voltage, at this time the generator voltage may become unstable. Adjust the A. potentiometer anticlockwise, until the oscillation stabilizes. Over adjustment may cause short oscillation when load applied or load type varies. UGGEIO Adjust the A. potentiometer to the point where the oscillation occurs and then adjust the potentiometer counterclockwise by / of rotation. () If voltage can not be adjusted or to the rated value, please check to see if the generator frequency is too slow (Under frequency protection activated). If residual voltage is below Vac, then please execute field flashing to help build up the residual voltage. () Make sure the generator and AV are both under normal operation conditions. () he voltage adjustable range should be / % under no load or full load. If the adjustable range in not within such range, please check the below : A. Generator under frequency (Lower than low frequency protection knee point).. everely deformed generator output wave form. C. Capacitive load over ratio (Power factor in lead). D. Change the AV and restart. E. Under over excitation voltage protection (Overload protection). ECIO : FIELD FLAHIG When the regulator is installed correctly but the generator is failed to generate power. esides carbon brushes were worn out, here are two possible causes below.. he polarity of field is inverse olution:exchange the connection of F and F..2 he residual voltage is less than Vac, olution :.2. hut down generator, disconnect the wiring between AV and generator then flash the field. Flashing duration = seconds. (ee wiring in Figure 2) esistor ohms for full wave AV esistor 0 ohms for half wave AV Warning!! Over field flashing may damage the field of generator..2.2 estart generator and measure the residual voltage by AC Voltmeter, if it is still less than Vac, repeat the previous process, after several times, the residual voltage still cannot be built, Kutai E00 is strongly recommended, see Figure 2. V ~ F G ~ A. F W Figure 2 Manual Flash. Maintenance egular maintenance to make sure the AV surface is clean and free from oil or moisture. All connection terminals and wirings must be firmly tightened and no signs of visible oxidation or erosion. WAIG Overly field flashing may damage the AV or generator excitation. Please make sure you have read and understand the contents of the instruction manual prior to installation. Incorrect wiring connection may result in irreversible damage to the product and other equipments. EA0220V

5 Delta 2 0 Figure phase 20 Vac With auxiliary V Delta Delta V Figure phase 220 Vac Figure phase 220 / 0 Vac V Figure phase 220 Vac V Figure 7 phase 220 Vac With auxiliary V 2 0 Figure 8 phase 220 Vac V 2 0 Figure 9 phase 220 Vac With auxiliary V EA0220V

6 2 0 V Figure 0 phase 80 / 80 Vac 2 0 Figure phase 80 / 80 Vac With auxiliary V Figure 2 phase > 80 Vac V Figure phase > 80 Vac With auxiliary V EA0 For eplacing Mec Calte 7 Diagram C A 7 erminal C A 7 erminal V Figure phase 220 Vac Figure phase 220 Vac With auxiliary V C A 7 erminal C A 7 erminal Figure phase 80 / 80 Vac V Figure 7 phase 80 / 80 Vac With auxiliary V Use only original supplied spare protection fuse for fuse replacement. Please accept our sincere apology if any modification in performance, specification or appearance is made without prior notice. EA0220V