Voltage Regulator

Automatic Voltage Regulator (AVR) AVR 8A Description----- GAVR-8A is Universal 8 Amp 1/2 Wave Self Excited Dip-Switch Programmable be Automatic Voltage Regulator, which is suitable for brushless generator. *SensingInput Voltage 220/400VAC,1phase 2wire *Power Input Voltage 180~240VAC, 1phase 2wire *Output Voltage Max.90VDC@240VAC input Current Continuous 6A Intermittent 6A for 10SEE Resistance Min.10 Max 100 *Voltage Build-up esidualvolts at AVR teminal 5VAC *External Volts Adjustment +/-7%with 1K 1watt trimmer *Unit Power Dissipation Max.8Watt *Under Frequency Protection 60Hz system presets knee point at 57Hz *(Factory Settings) 50Hz system presets knee point at 47Hz GAVR-8A Input Sensing Voltage 220/400VAC,1phase 2wire Power Voltage 180~240VAC, 1phase 2wire Voltage Jumper selectable 95-132V ac or 190-264 Hz nominal Frequency 50-60 Hz nominal Output Voltage max 90V dc at 207V ac input Current continuous 2A dc Current intermittent 5A for 10 secs Resistance 20 ohms minimum Voltage Build-up esidualvolts at AVR teminal 5VAC External volts adjustment

Automatic Voltage Regulator (AVR) AVR SE350 For marathon Generator AVR voltage regulator se350 is an encapsulated electronic Sensing & Power Input 190-240 Vac Burden 500VA Output Power-Continuous 73 Vda at 3.5 Adc(255w) Output Power-Forcing(240 Vac Input Power) 105 Vdc at 5 Adc(525w) Regulation 1.00% Remote Voltage Adjustment Range ±10% with 2000 ohm rheostat ±5% with 1000 ohm rheostat Frequency Compensation Adjustable Roll off ferquency 54-61 Hz for 60 Hz 45-51 Hz for 50 Hz Operation Weight6.5 oz Power Dissipation 8 watts maximum

Automatic Voltage Regulator (AVR) AVR R450 R450 Leroy Sommer Alternator AVR : Leroy Somer R450 AVR,R450 is analog Automatic Voltage Regulator with transistors. for LSA 46.2, 47.2, 49.1 and LSA 50.2 altern 2.Applications § standard : for LSA 46.2, 47.2, 49.1 and LSA 50.2 alternators. § optional : for LSA 42.2, 43.2, 44.2. alternators Adapted to the SHUNT, AREP or PMG excitation systems. 3.R450 Main characteristics § Voltage regulation +/- 0.5% at steady state and constant speed. § Control by transistor means that the regulation quality is independant of applied load. § Phase to phase voltage sensing. § Suitable for high levels of vibration and harsh environments. § Integrated "LAM" and " auto adaptative LAM" system to cope with load impacts applied to the engine § AREP or PMG excitation with normal or fast response. § Single or three phase voltage sensing with optional module. § Rotating switch facilitating selection. Voltage 230± 2V Voltage Steady Range ± 1V Starting Excitation Voltage 1.5V Loading Capacity With 110% loading, the regulator can work normally Output Voltage Steady on hot and cool condition 2V Temperature float on Output Voltage 2V

Automatic Voltage Regulator (AVR) AVR R449 Generator AVR R449 Input voltage 70-140V AC, (PMG, or auxiliary winding, single, three phases) Reaction is measured 90-480V AC MAX. output DC 12A 125V Function Built-in low-speed , over excitation LAM REGULATION +/-0.5%

Automatic Voltage Regulator (AVR) AVR R448 General Features 50HZ/60HZ automatic voltage regulator avr R448 is a half-wave phase controlled thyristor type Auto Voltage Regulator and forms part of the excitation system for a brushless generato r. In addition to regulating the generator voltage, the AVR circuitry includes under speed and sensing loss protection to ensure safe, reliable control of the generator. Positive voltage build up from residual levels is ensured by the use of proficient semiconductors in the power circuitry of the AVR. Which is linked with the main stator windings and the exciter field windings to offer closed loop control of the output voltage with load regulations of +/- 1.5% Data Sheet 50HZ/60HZ automatic voltage regulator avr R448 Sensing/Power input Voltage 90-480VAC Power Input 40-150VAC, 3 phase Magnetic Field Output Voltage Max 160VDC at 120VAC input Current Max 10A Pressure Regulating Accuracy ±0.5% RMS with 4% engine governing

Automatic Voltage Regulator (AVR) AVR 438 Features AVR R438 Voltage Sensing terminal 0-110V=95-140V terminal 0-220V =170-260V terminal 0-380V=340-520V Frequency 50-60Hz nominal Voltage input 35-75VAC max Output Voltage 43V dc Current continuous 8A, intermittent 10A for 10 secs Resistance 15 minimum Regulation +/-1%

Automatic Voltage Regulator (AVR) AVR R250 R250 A.V.R. FOR SHUNT ALTERNATORS Description Leroy Somer R250 is an analog A.V.R. with numerical regulation function (micro-controler) and power controled by transistors. It is designed for small alternators with a SHUNT excitation. R250 Leroy Somer AVR controls the excitation current in order to maintain the output voltage of the alternator. R250 AVR is performant in terms of voltage regulation, simple to set , to use and is reliable. It is in compliance with I.E.C. 60034-1 standard and U.L. 508 / C.S.A. approved. Operation mode : Standalone Main feature and characteristics - Voltage regulation : ± 0.5 %. - U/F function. - LAM function. - Quick response : 500 ms. - Nominal excitation current : 5A - Maximum excitation current : 7A during 10 s. - Provide range / voltage detection : 85 to 139 V (50/60Hz). - Protection : fuse 8A. Operation conditions - Operating temperature range : - 40° C à + 65° C. - Storage temperature range : - 55° C à + 85° C. - Hygrometry : 98%. - Maximum choc : 9 g on 3 axis. - Vibrations : less than 10 Hz , 2 mm peak magnitude. From 10 Hz to 100 Hz : 100 mm/s, below 100 Hz : 8g. Connexion and setting Settings are done through the A.V.R. - Potentiometer P1 : voltage setting. - Potentiometer P2 : stability setting. - Strap ST3 : frequency selection. - Jumper : frequency, U/F function, LAM function - Potentiometer ST4 : remote voltage setting.

Automatic Voltage Regulator (AVR) AVR R230A * The alternator with shunt excitation is self-excited with an R230 voltage regulator. * The regulator monitors the exciter excitation current as a function of the alternator output voltage. * Very simple in design,the alternator with shunt excitation has no sustaining short-circuit capacity. * Voltage Regulation:around +/-0.5% * Voltage supply/sensing range 85 ~139 V (50-60Hz) * Rapid response time (500 ms) for a transient voltage variation amplitude of ± 20% * Voltage setting P1 * Stability setting P2. * Initial potentiometer settings : 1) P1 potentiometer (AVR voltage adjustment): fully anti-clockwise. 2) Remote voltage adjustment potentiometer: centre position. Run the alternator at its rated speed. If the voltage does not increase, the magnetic circuit should be remagnetized (see section 2.3). 3) Turn the AVR voltage adjustment potentiometer P1 slowly until the output voltage rated value is obtained. 4) Adjust the stability setting using P2. 5) Sealed potentiometer P3 is factory set at 48 Hz for 50 Hz and 58 Hz for 60 Hz Sensing Input Voltage 85 to 139 V Frequency 50/60 Hz Output Voltage Max 75 V dc at 100V ac input Current Continuous 4A dc; Intermittent 8A Resistance 15 ohms minimum

Automatic Voltage Regulator (AVR) AVR R230 * The alternator with shunt excitation is self-excited with an R230 voltage regulator. * The regulator monitors the exciter excitation current as a function of the alternator output voltage. * Very simple in design,the alternator with shunt excitation has no sustaining short-circuit capacity. * Voltage Regulation:around +/-0.5% * Voltage supply/sensing range 85 ~139 V (50-60Hz) * Rapid response time (500 ms) for a transient voltage variation amplitude of ± 20% * Voltage setting P1 * Stability setting P2. * Initial potentiometer settings : 1) P1 potentiometer (AVR voltage adjustment): fully anti-clockwise. 2) Remote voltage adjustment potentiometer: centre position. Run the alternator at its rated speed. If the voltage does not increase, the magnetic circuit should be remagnetized (see section 2.3). 3) Turn the AVR voltage adjustment potentiometer P1 slowly until the output voltage rated value is obtained. 4) Adjust the stability setting using P2. 5) Sealed potentiometer P3 is factory set at 48 Hz for 50 Hz and 58 Hz for 60 Hz Sensing Input Voltage 85 to 139 V Frequency 50/60 Hz Output Voltage Max 75 V dc at 100V ac input Current Continuous 4A dc; Intermittent 8A Resistance 15 ohms minimum

Automatic Voltage Regulator (AVR) AVR R220 Product Description 1.R 220 is an analog A.V.R. with numerical regulation function. 2.It is designed for small alternators with a SHUNT excitation. 3.It controls the excitation current in order to maintain the output voltage of the alternator. 4.It is performant in terms of voltage regulation,simple to set , to use and is reliable. 5.It is in compliance with I.E.C. 60034-1 standard and U.L. 508 / C.S.A. approved. 1. R220 diesel generator Automatic Voltage Regulator part 2. R220 3.Automatic Voltage Regulator 4.3A 500 ms analog A.V.R Auto R220 diesel generator Automatic Voltage Regulator part R220 Automatic Voltage Regulator 3A 500 ms analog A.V.R Auto