User Manual
Contents
1. is desired connect the Corner Frequency Jumper to the 50 Hz terminal e Ensure that the connection between the generator system and the Regulator are correct e Set the regulator voltage control potentiometer fully counter clockwise and the remote voltage adjust rheostat if used to the centered position e Adjust the regulator stability control potentiometer fully clockwise This provides the most stability and the slowest response e f user adjustment of the under frequency control potentiometer is required start with the potentiometer adjusted to the fully counterclockwise position Then slowly adjust the potentiometer clockwise to set 3 3 System Start Up e Perform the steps under Preliminary Setup NOTE All AC voltage readings are to be taken with an average reading voltmeter e Start Prime mover and bring up to rated speed e Generator voltage should build up If it does not build up perform the steps under Field Flashing e Slowly adjust the regulator voltage control potentiometer or remote voltage adjust rheostat until the generator voltage reaches the nominal level If the voltage does not build up to the rated level 1 Check the generator output for excessive load or a short circuit 2 If a minimal residual of 5 volts is not present perform the steps under Field Flashing e Apply and remove the generator load to verify stability If the generator responds too slowly or hunts oscill2. to recover in speed transient condition Use jumper to select 50 Hz or 60 Hz The screwdriver adjustable potentiometer sets the roll off frequency from 54 61 Hz in the 60 Hz setting or from 45 51 Hz in the 50 Hz setting EA350 The EA350 has the roll off point preset to 58 Hz in the 60 Hz mode and 48 Hz in the 50 Hz mode To change the roll off point adjust engine speed to the desired rated speed 50 or 60 Hz Set the voltage to the desired setting at rated speed Adjust engine speed to the desired roll off point Turn the potentiometer counterclockwise until the voltage starts to drop off Then adjust the potentiometer clockwise until the voltage returns to rated voltage Re adjust engine speed to rated speed 2 6 Corner Frequency Jumper Regulator are delivered with the Corner Frequency Jumper set for 60 hertz operation This gives a corner frequency of 55 hertz For 50 hertz operation and a corner frequency of 45 hertz the Corner Frequency Jumper must be moved to the 50 Hz terminal 2 7 Voltage Adjust Rheostat Jumper Rheostat Jumper connected across terminals 6 and 7 This enables adjustment of the generator output voltage rheostat A 1000 ohm half watt rheostat will provide adequate voltage adjustment range for most applications Figure 5 6 shows the proper remote rheostat connections The EA350 potentiometer controls are accessible through the controller front panel and are shown in Figure 2 2 8 Voltage Adjus
3. total resistance to 15 ohms 2 2 Sensing Power Input Circuit Input power and sensing is achieved through terminals 3 and 4 The voltage input requirement of the EA350 is 120 to 240 VAC See Figure 5 6 2 3 Voltage Adjustment The screwdriver adjustable potentiometer adjusts the generator output voltage Adjustment clockwise increases the generator output voltage When using a remote voltage adjust rheostat remove the jumper wire across terminals 6 and 7 and install a 2000 ohm 1 2 watt minimum rheostat This will give 10 voltage variation from the nominal For 5 voltage variation use a 1000 ohm 1 2 watt rheostat See Figure 5 6 2 4 Stability Adjustment e System stability is the ability of the generator to respond to load transients Decreasing the stability makes the generator less sluggish and faster to respond to toad transients If the stability of the regulator is decreased too much the generator will tend to hunt under steady state e Conditions the screwdriver adjustable potentiometer adjusts the system stability Adjustment clockwise e Increases the stability Increasing the stability increases the response time of the generator Conversely decreasing the stability decreases the response time of the generator 2 5 V Hz Roll Off Frequency Selection e The roll off point is the frequency where the generator voltage starts to decrease This reduces the Kilowatt load to the engine which allows the engine
4. BASSO Generator Automatic Voltage Regulator Operation Manual Self Excited Automatic Voltage Regulator For General Generators Compatible with Marathon SE350 Use for reference purpose only and not a genuine Marathon product CE EN61204 3 2001 certified ACRAS RARD o KUTAI ELECTRONICS INDUSTRY CO LTD 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 1 SPECIFICATION Power amp Sensing Input Voltage 85 135 VAC 190 240 VAC Frequency 50 60 Hz Jumper selectable Output Voltage Max 36 VDC 120 VAC input Max 73 VDC 240 VAC input Current Continuous 4A Intermittent 7A for 10 sec 52 105VDC Resistance Min 150hm Max 100 ohm Voltage Regulation lt 1 with 4 engine governing Voltage Build up Residual voltage at AVR terminal gt 5 VAC Operating Temperature 40T 60 Storage Temperature 650 850 Burden 250 500VA Max ql Doon 2 te 58 7 67 0 i Figure 1 External Volts Adjustment 5 with 1K ohm 1 watt trimmer 10 with 2K ohm 1 watt trimmer EMI Suppression Internal electromagnetic interference filtering Unit Power Dissipation M
5. ates e Check the generator output for excessive load or a short circuit Adjust the Regulator stability control with no load applied e Check the stability of the governor system e Check regulation under normal conditions If the regulation is poor operating 1 Verify that the prime mover is operating at rated speed 2 Verify that the voltmeter is connected to the same point as the Regulator sensing 3 Use an average sensing voltmeter not an rms sensing voltmeter e Verify the corner frequency setting by slowly reducing the generator frequency until the generator output voltage just starts to decrease If adjustment of the corner frequency is required 1 Rotate the under counterclockwise frequency control fully 2 Reduce the generator frequency from nominal either 50Hz or 60Hz to the desired corner frequency 3 Slowly adjust the under frequency control clockwise until the generator output voltage just starts to decrease CAUTION 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 semiconductors contained in the controller 4 FIELD FLASHING When the regulator is operated with the generator for the first time the polarity of residual magnetism may be reversed or too small to achieve the necessary build up voltage for the regulator If reversing the field connections does not i
6. ax 8 watt Under Frequency Protection Factory Setting 60 Hz system presets knee point at 54 61 Hz 50 Hz system presets knee point at 45 51 Hz Dimensions 99 5mm L 67mm W 47 5mm H Weight 205g 2 Certification C EN61204 3 2001 certified Test Report on request if required 16 3 47 5 UNIT mm Outline and Drilling Diagram EA350 ins D s dwnf Aoueanbal4 s dwnf ye sooyy OOOoooL O FUSE 4A 250V DIP SW O INOYL0414 IVLNA O_O os va 3QON YOLVINDAY ADVLIOA WAOOS ZHO9 0S ILAOHZ 06L SEASEL S8 LNdNI YSE SPAEL IPA 9E LNdLNO e a2 9 aeoo Figure 2 Jumper and Potentiometer Control Locations 2 WIRING 2 1 Exciter Field Power Circuit o e Connect AVR terminal F to field connect AVR terminal F to the field e See Figure 5 6 for typical connection diagram CAUTION The exciter field dc resistance must be 15 ohms or greater and less than 100 ohms If the exciter field dc resistance is less than 15 ohms and the full load field current does not exceed the maximum continuous current rating of the controller a resistor of sufficient wattage must be added in series with the field to increase the
7. g steps before proceeding with system start up di Connect the Analog Voltage Controller as shown in the operational test diagram of Figure 8 Do not apply power Ensure that the light bulbs are rated for 120 volts and less than 100 watts Figure 4 Operational Test Diagram 2 Adjust the Regulator voltage adjust potentiometer and remote voltage adjust rheostat if used fully counterclockwise 3 Apply 240 VAC 60 Hz power to the controller The light bulbs should flash momentarily 4 Slowly adjust the controllers voltage adjust potentiometer clockwise RESULT 1 Before minimum luminance is reached the light bulbs should attain maximum luminance to signify the regulation point 2 At the regulation point a small change in the voltage adjust potentiometer or rheostat position should turn the light bulbs on or off EA350 3 2 Preliminary Setup Complete the following steps before proceeding with system start up e Verify that the Regulator specifications conform with the requirements of the generator system e Ensure that the controller jumpers and dip sw are installed positioned as follows 1 If a remote voltage adjust rheostat will not be used ensure that the Voltage Adjust Rheostat Jumper is connected across terminals 6 and 7 2 If a 55 hertz corner frequency for a 60 hertz system is desired connect the Corner Frequency Jumper to the 60 Hz terminal If a 45 hertz corner frequency for a 50 hertz system
8. nduce build up and the residual voltage is less than the specified value of 5 VAC shut down the Prime mover and proceed with the following steps 1 With the Prime mover at rest and the regulator s field output wires disconnected apply a DC source NOT grounded of no more than 6 12 Vdc with Positive to F and Negative to F in series with a current limiting resistor of 3 5 ohms 20 watt The set battery is a suitable source EA350 2 Allow approximately 3 seconds before removing the battery With the voltage regulator disconnected wires 3 and 4 start the prime mover and measure the residual voltage available at the auxiliary winding If this voltage is greater than 5 VAC reconnect voltage regulator and voltage build up should be successful If less than 5 VAC is measured repeat field flashing procedure If residual voltage is greater than 5VAC but AVR still unable to build up voltage please replace with another AVR EXTERNAL VOLT ADJ om RHEOSTA FIELD Figure 6 30 220VAC Diagram WARNING 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 This Automatic Voltage Regulator is not equipped with loss Sensing Protection function Over Excitation Protection An addi
9. t Rheostat Jumper 2P DIP switch on for 120Vac generator system 2P DIP switch off for 240Vac generator system 2 9 Stability Selection When excitation under voltage it can result in insufficient adjustment range for stability adjustment and when excitation over voltage the response from the AVR becomes sluggish The AVR is equipped with 2 bridging wires J1 and J2 to help improve or relief the condition See Figure 2 If the unloaded excitation voltage is less than 7 VDC please cut open the J2 red bridging wires If the unloaded excitation voltage is greater than25 VDC please cut open the J1 white bridging wires GENERATOR OUTPUT FROM NORMINAL 100 90 80 50 HZ CURVE 60HZ CURVE 70 50 40 30 20 Yj 5 10 15 20 25 30 35 40 45 50 55 60 65 70 FREQUENCY HZ Figure 3 Frequency Compensation Curves 1 The frequency compensation characteristic of 2 The regulator is shipped from the factory set FREQUENCY COMPENATION See Figure 1 Figure 1 used to improve system load pickup performance by restraining voltage recovery until frequency has also started to recover at a 45 Hz corner frequency for 50 Hz systems For 60 Hz systems a 55 Hz corner frequency is achieved by removing the 50 50 external link 3 OPERATION PROCEDURE 3 1 Operational Test Complete the followin
10. tional Over Voltage Protection device for load may be required to avoid possible damage to the equipment or severe personal injury or death eo EXTERNAL OLT AD RHEOSTAT IK IW A XC FIELD Figure 5 1 220VAC Diagram FIELD Figure 7 3 380VAC Diagram EA350
Download Pdf Manuals
Related Search