Generator Automatic Voltage Regulators Universal 15 Amp Half
Contents
1. port of the regulator Sensing voltage had been connected on 220V 380V or 480V 3 Phase from generator to work properly If single phase is used output voltage will exceed nominal value by 21 1 Terminals F amp F 2 Terminals sensing 3 Terminals EXT VR For external voltage adjustment if required Under frequency protection selection connect a jumper from COM to the 50Hz terminal for 50Hz operation or leave the two terminals open for 60Hz operation 4 Terminals 50 amp COM Fe E POWER dh Se 220 EE aa Sa J H HI H ro i ie 9 oe eh is ee rar fe Fear J OE son pp CLOSE He S80 440 404 ener CLOSE SHE Winng Liagrar Figure 20 200 GHW SAITOH Flash with Battery Figure 11 TROUBLE SHOOTING Residual voltage below 5VDC Flash generator field with proper method Incorrect wiring Check wiring diagram for proper connection Power sensing or field wires not connected Connect the wires properly Generator not up to speed Increase generator speed Poor adjustment is made Read start procedure carefully and adjust again Frequency roll off Increase generator speed Incorrect voltage selection Read user s manual to select correct voltage Sensing wiring not completed Completed sensing wiring Poor adjustment is made Read start procedure carefully and adjust again Incorrect voltage selection Read user s manual to select correct voltage Poor adjustment is made Read start procedure carefull2. AUTOMATIC GENERATOR VOLTAGE REGULATOR Model SS15A3Phase Operation Manual GENERAL DESCRIPTION The SS15A3PHASE voltage regulator is solid state AVR module with 3 Phase sensing for use in brushless generators Electrical Specification Power Input Sensing Power Output Regulation Exciter field resistance External Voltage Adjustment Residual voltage Under Frequency Protection Operation Temperature Storage Temperature Size Weight Voltage Soft Start function 100 300VAC 220V 380V 440 480V 3 phase Current Continuous 16A dc Transient 20A dc for 30 second 1 2 8 Ohm minimum at 45v max output 15 with 1k Ohm potentiometer minimum 0 5 watt rated Over 5V at 25Hz residual voltage is requited for voltage build up On 50Hz operation output voltage attenuated at approx 45Hz On 60Hz operation output voltage attenuated at approx 55Hz 40 Degree C to 60 Degree C 60Degree C to 85Degree C 150 mm Long x 135 mm Wide x 75mm High 800 grams 5 POWER F F OFEN MEI EXT YR CLOSE SEL IK Outline Drawing Figure 1 6 NOTICE OF USE F3 1 The SS15A3PHASE can be mounted in any position inside generator control panel switchgear cabinets etc Avoid high temperatures moisture or severe vibration See figure 1 for mounting dimensions 3 2 The SS15A3PHASE surface temperature can be over 60Degree C when in operations DO not touch the heat sink F3 3 STARTUP PROCEDURE SUE ot eS En
3. sure all the wire of the regulator is correctly connected and the proper fuse 15A500V is installed Turn voltage potential meter full anticlockwise the lowest voltage level If used turn external voltage potential meter to the middle position Turn stability potential meter full clockwise highest stability level Connect an 110VDC meter across the field with proper polarity Connect a 300VAC meter across line dry phase to neutral of generator Start and run the generator with no load and at rated speed The generator output voltage should build up to a normal level If voltage does not build up it may be cause by low residual voltage Refer to field flashing section in generator manual Slowly adjust voltage potential meter until the generator voltage reach the proper value T Turn the stability potential meter clockwise until instability is shown and then turn it counterclockwise slightly until both meter mention in 5 and 6 are shown stable Interrupt regulator power for a short time approximately 1 to 2 second If the voltage still stable the adjustment is now completed Otherwise increase the Stability slightly repeat procedure 10 until stability is reached th Lu z z wE m k g q 5t 5b EE 7 z H th FREQUENCY HE SOFT SART vis Frequency Compensation Cures Figure 2 Soft start Curve Figure 3 4 ADJUSTMENTS 4 1 FREQUENCY ROLL OFF ADJUSTMENT Connect a jumper from COM to the 50Hz
4. terminal for 50Hz operation or leave the two terminals open for 60Hz operation To reset the frequency roll off proceed as follow 1 Adjust the prime mover RPM to the desired frequency compensation comer frequency roll off point 2 Adjust the front panel FREQ control until the output voltage low about 5V than nominal voltage For 50Hz applications the frequency roll off is factory preset to 45Hz for 60Hz operation the frequency is 55Hz 4 2 VOLTAGE ADJUSTMENT 1 Adjust the front panel VOLT to vary the generator nominal voltage 2 If used a 1k Ohm1 2 watt potentiometer may be connected to terminals EXT VR refer to Figure4 4 3 STABILITY ADJUSTMENT 1 Adjust the front panel STAB control 2 Rotation the front panel STAB control in the counter clockwise CCW direction will soeed response time if rotated too much for CCW the generator voltage my oscillate hunt 3 Rotated the front panel STAB control CCW until the system start oscillating and the rotate CW just past the point where oscillation occurred FLASH WITH BATTERY Lack of the residual voltage of generator flash field with 3 24 VDC during generator is running Finish flash when output is 30 of the nominal voltage WIRING REFER TO FIGURE 4 the DC output port of the regulator F is positive normally connected to the field of generator marked F F1 J F is negative normally connected to the field of generator marked F j F2 orK The power and sensing
5. y and adjust again Field voltage requirement lower the Inquire our distributor to solve rang of regulator
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