BASLER APR 125-5 Automatic Voltage Regulator Generator AVR 9168800100

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Good used basler regulator taken off unit with bad engine The Basler Electric APR 125-5 voltage regulator is an epoxy-potted unit housed in a metal case. The voltage regulator controls the dc exciter field power to regulate the output voltage of medium-size, 50 or 60 hertz brushless generators that have a 125 Vdc field. Regulation is provided by sensing the generator output voltage, converting it to a dc signal and comparing the signal to a reference voltage. An error signal is developed and used to control the dc field power in order to maintain a constant generator output. SPECIFICATIONS APR 125-5 electrical and physical specifications are listed in the following paragraphs. Output Power (With 240 Vac Input) Maximum Continuous: 5 Adc at 125 Vdc (625 W) Forcing (1 Minute): 8 Adc at 200 Vdc (1,600 W) Exciter Field DC Resistance Minimum: 25 Ω Maximum: 100 Ω Power Input Range: 190 to 277 Vac, 10%, single-phase, 50/60 Hz Burden: 1,000 VA, maximum Sensing Input Voltage 240 Vac Input: 190/220 Vac at 50 Hz, nominal 208/240 Vac at 60 Hz, nominal 480 Vac Input: 380/400/415 Vac at 50 Hz, nominal 416/450/480 Vac at 60 Hz, nominal Burden: 1 VA Voltage Adjustment Range: 170 to 264 Vac or 340 to 528 Vac using the front-panel voltage adjustment control. External Rheostat: A 5 kΩ, 2 W, locking-shaft potentiometer with a slotted shaft is supplied with the APR125-5 for remote mounting. The external rheostat provides a 10% adjustment of the nominal value determined by the front-panel voltage adjustment control. Regulation Accuracy: 0.25% Voltage Drift: <1% voltage variation for a 50C (90F) change Response Time: <1.0 cycle Voltage Buildup The APR 125-5 has internal provisions for automatic voltage buildup from generator residual voltages as low as 6 Vac.