User Manual
Contents
1. ISISISISISISSISISISISIS S SISISISISISISISISSISISIS 6543 i 6543210B 44 60HZ 60HZ VR VR Figure 11 32 380 480 Vac Figure 12 3O 2 480 Vac With auxiliary winding R Y 6543210B 44 60HZ VR Figure 13 30 2 480 Vac EA06 For Replacing Mec Calte SR7 Diagram R R T n T n n TU ig 564 5 bal3 1 H SR7 5c 4 1 5 r bals 1 H SR7 4 T l Terminal i i Terminal ELI eet 6543210B 44 60HZ 60HZ VR VR Figure 14 10 120 240 Vac Figure15 10 120 240 Vac With auxiliary winding R R T i i N p N 1 a t nig amp g4 1 5 Ba a 1 SR7 Bg 4 Bye2. gA3 1 SR7 n 4 Terminal l F LJ erminal SISISISISISISISISISISISIS SISISISISISISISISISISISIS ILLO 6543210B 44 60HZ 60HZ VR VR Figure 16 10 380 480 Vac Figure 17 10 380 480 Vac With auxiliary winding X Use only original supplied spare protection fuse for fuse replacement X Appearance and specifications of products are subject to change for improvement without prior notice EA06
3. 3 30 120 240 Vac Figure 4 30 120 240 Vac With auxiliary winding S R 1 S i T u a N puc R Auxiliary ry winding Delta winding E up di ee SISISISISISSISISISISISIS SOS IS IS SS SS IS SIS IS SIS S 6543210B 44 6543210B coz 60HZ VR VR Figure 5 30 240 277 Vac Figure6 10 120 240 Vac With auxiliary winding R R S S 2 T T N N 6543210Be 44 6543210B 44 60HZ 60HZ VR VR Figure 7 10 120 240 Vac Figure 8 30 120 240 Vac With auxiliary winding R R S E S T T N N i Iss SISISISISISISISISISSSISIS 6543210 B 60HZ 60HZ VR VR Figure 9 30 120 240 Vac Figure 10 30 380 480 Vac With auxiliary winding EA06 NEN Field z0 m menn Field z30 dq Auxiliary winding
4. wave AVR Resistor 5 10 ohms for half wave AVR Warning Over field flashing may damage the field winding of generator 5 2 2 Restart generator and measure the residual voltage by AC Voltmeter if it is still less than 5 Vac repeat the previous process after several times the residual voltage still cannot be built Kutai EB500 is strongly recommended see Figure 2 R S 1 G 1 F o Field F R FSw i 5 v BATT Figure 2 Manual Field Flash 5 3 Maintenance Regular maintenance to make sure the AVR 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 WARNING Overly field flashing may damage the AVR or generator excitation winding 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 EA06 y Field mud Field F S i LN R er Delta winding VL nino Delta winding 6543210B 44 6543210B 44 60HZ 60HZ VR VR Figure
5. 1 Connect AVR terminal to field connect AVR terminal to the field NOTE The Exciter field resistance is between 10 100 ohm 3 1 2 If field resistance is less than 10 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 10 100 ohm 3 2 Sensing Power Input 1 2 3 4 5 6 1 3 2 1 Total of 3 sets of independent sensing inputs each input voltage equals to 120 240V Center can be series into Y or A to connect to the generator output 3 Phases for example R T T S S R or joint connected into a single phase sensing See Figure 2 to 13 3 2 2 Terminal 2 is the AVR power input voltage range from 50 280V 3 3 Frequency Selection 60 Hz When the 2 terminals marked as 60 Hz on the AVR is bridged the system frequency is 60 Hz In the contrary when bridge is removed the system frequency is 50 Hz 3 4 External Voltage Adjustment VR Connect a 100K Ohms 1 2W voltage rheostat at VR terminals to enable a 5 voltage adjustment from rated voltage The terminals must be bridged when the external voltage adjustment function is none required 3 5 Terminals B 0 can remain not connected 3 6 VOLT Voltage Adjustment User can adjust the generator voltage by rotating the l VOLT potentiometer on the AVR Rotate the potentiome
6. EAO Generator Automatic Voltage Regulator Operation Manual Suitable for Single or Three Phase Self Excited Brushless Generator Compatible replacement for Mecc Alte UVR6 Not a genuine Mecc Alte product HORELI RAROS 5 KUTAI ELECTRONICS INDUSTRY CO LTD 90 Headquarters No 3 Lane 201 Chien Fu St Chyan Jenn Dist Kaohsiung TAIWAN Tel 886 7 8121771 Fax 886 7 8121775 URL http www kutai com tw SECTION 1 SUMMARY EAO06 is equipped with 3 separate sensing inputs 1 2 3 4 5 6 terminals R S T phase which can survey from single up to three phase voltages and check the average voltage from Y YY or A wiring accordingly to the generator requirement or user preference SECTION 2 SPECIFICATION Sensing Input 1 2 3 4 5 6 Voltage 100 290 Vac 270 520 Vac 1 or 3 phase selectable by wiring Frequency 50 60 Hz Power Input 2 Voltage 50 280 Vac Frequency 50 60 Hz Output Voltage Max 63 Vdc 9 power input 220 Vac Current Continuous 6A Intermittent 7A for 10 sec Resistance 10 100 ohms Fuse Spec 5x 20mm S505 6 3A 250V slow blow type Voltage Regulation 1 with 4 engine governing Build Up Voltage Residual voltage at AVR terminal gt 5 Vac 25 Hz Thermal Drift 0 0396 per C change in AVR ambient External Volts Adjustment 5 100K ohms 1 2 watt potentiometer Outline and Drilling Diagram Figure 1 The AVR is e
7. ation current from damaging the AVR or the exciter adjustment procedure Adjustment procedure 1 Start generator and let voltage build up 2 Adjust engine frequency to the appropriate low frequency value 3 Slowly adjust Hz Potentiometer until the red LED illuminates SECTION 4 OPERATION PROCEDURE 4 1 Please confirm the follow condition before starting the generator 4 1 1 Starting Setting 1 Confirm if the AVR specification conforms to the system requirements 2 Confirm the AVR wiring 3 Confirm correct frequency selected 4 Confirm the generator rated voltage with the AVR sensing input 5 Adjust VOLT counterclockwise Adjust STAB potentiometer to the center position Adjust AMP potentiometer fully clockwise potentiometer fully EA06 4 1 2 Starting Generator 1 Reconfirm all setting and wiring ATTENTION The AVR reading AC voltage are all average value 2 Start generator and adjust to rated frequency The first measured voltage value should be under the rated voltage If not then reconfirm the start setting 3 Slowly adjust VOLT potentiometer to the rated voltage at this time the generator voltage may become unstable Adjust the STAB potentiometer anticlockwise until the oscillation stabilizes Over adjustment may cause short oscillation when load applied or load type varies SUGGESTION Adjust the STAB p
8. otentiometer to the point where the oscillation occurs and then adjust the potentiometer counterclockwise by 1 6 of rotation 4 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 5 Vac then please execute field flashing to help build up the residual voltage 5 Make sure the generator and AVR are both under normal operation conditions 6 The voltage adjustable range should be 1 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 B Severely deformed generator output wave form C Capacitive load over ratio Power factor in lead D Change the AVR and restart E Under over excitation voltage protection Overload protection SECTION 5 FIELD FLASHING When the regulator is installed correctly but the generator is failed to generate power Besides carbon brushes were worn out here are two possible causes below 5 1 The polarity of field is inverse Solution Exchange the connection of F and F 5 2 The residual voltage is less than 5 Vac Solution 1 5 2 1 Shut down generator disconnect the wiring between AVR and generator then flash the field Flashing duration 2 3 seconds See wiring in Figure 2 Resistor 3 5 ohms for full
9. quipped with adjustable under frequency protection and over voltage protection to prevent generator from overloading and over excitation The 3 LED each represents Green normal operation Red under frequency and Yellow over excitation The built in EMS filter helps to prevent possible interference from the AVR to the generator Soft Start Ramp Time 4 sec Unit Power Dissipation Max 5 watts EMI Suppression Internal EMI filtering Over Excitation Protection 25 55 Vdc 0 1 20 sec Under Frequency Protection Adjustable range 42 62 Hz Environment Operation Temperature 40 65 C Storage Temperature 40 80 C Relative Humidity Max 95 Vibration 1 5 Gs 5 30 Hz 5 0 Gs 30 500 Hz Dimensions 150 0 L x 115 0 W x 41 0 H mm Weight 440 g 2 ATTENTION 1 AVR 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 1 2 All voltage readings are to be taken with an average reading voltmeter Meggers and high potential test equipment must not be used Use of such equipment could damage the AVR 3 Secure all wiring connection Do not install AVR at a place with high vibrations to prevent loose connections For safety do not touch the heat sink while in operation EA06 SECTION 3 WIRING ADJUSTMENTS 3 1 Field Excitation Wiring 3 1
10. ter clockwise to increase voltage and decreasing when rotate counterclockwise The voltage adjust rate is less than 196 when the power factor equals to 1 to 0 8 PF 1 to 0 8 and frequency variation within 696 3 7 STAB Stability Adjustment 3 7 1 Slowly and precise adjustment of STAB potentiometer can change the respond time between the AVR and generator Inadequate adjustment will cause voltage instability and over adjusting will cause sudden overly voltage variation under heavy load 3 7 2 Analogue type multi voltmeter is suggested when adjusting the voltage stability Adjust the STAB potentiometer until the pointer on the multi voltmeter is oscillating to its minimal 3 8 Circuit Protection 3 8 1 AMP Over Excitation Protection Adjustment Overload protection Setthe AMP Overload protection value 25 to 55 Vdc according to the generator maximum excitation voltage When over excitation occurs wait for 20 seconds then decrease the generator voltage to 30 to 50 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 The generator will require stopping operation to reset 3 8 2 Hz Under Frequency Protection Adjustment lr 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 excit
Download Pdf Manuals
Related Search