Key Features at a Glance Output power 10 kVA to 2000 kVA in single-phase (10–150 kVA) or three-phase (10–2000 kVA) configurations Output voltage 0–155 / 0–310 V (L-N), optional 0–400 V (L-N) or 0–600 V (L-N) Frequency: Type A 45–500 Hz / Type B 45–120 Hz / Type C 300–840 Hz THD ≤ 0.5 % resistive load; load regulation ≤ 0.5 %; response time ≤ 1 ms 7″ / 10.1″ touch screen with intuitive STEP and RAMP programming (24/12 sequences × 255 cycles) Three-phase independent adjustment; optional three-phase angle adjustment Optional overload capability: 200 % for 2 s, 150 % for 5 s, 125 % for 15 s Optional remote sensing for long cable runs; soft-start function reduces motor inrush AFV-PLUS-31075 — High Power Programmable AC Power Source (75kVA/310V Single-Phase) In summary, the Preen AFV-PLUS-31075 is part of the AFV+ Series, a high-power programmable AC power source covering 10 kVA to 2000 kVA in single- or three-phase output. The Preen AFV+ Series is a high-power programmable AC power source covering 10 kVA to 2000 kVA in single- or three-phase output. Using advanced PWM control, AFV+ delivers ≤0.5 % THD, 0.5 % F.S. voltage accuracy, and selectable 45–500 Hz operation with optional 300–840 Hz for avionics and motor double-frequency testing. What is the AFV-PLUS-31075 used for? The AFV-PLUS-31075 is used across home appliance, EMC laboratory, EV charger and high-voltage motor testing, medical equipment, aerospace and defense, transportation, shore power, and three-phase production lines. Specific test methodologies include phase shifting and 3-phase imbalance testing, EV charger high-power AC input simulation, motor double-frequency testing, transformer testing, and grid voltage / frequency simulation across global mains standards. Where does the AFV-PLUS-31075 fit in a typical lab workflow? The AFV-PLUS-31075 integrates into bench, ATE, and high-power production environments through standard RS-232, RS-485, Ethernet, and USB control. Engineers use it to repeatably simulate global mains and DUT operating conditions during design verification, certification pre-compliance, and end-of-line testing — replacing manual variac/MG-set configurations and improving test repeatability and data capture. From a measurement standpoint, the AFV+ Series is benchmarked against RoHS Compliant; CE Marked; supports IEC 61000-4-11 / IEC 61000-4-34 input conditions. Within this product line the AFV-PLUS-31075 delivers the variant-specific output described in this model's specification block below — chosen to match the most common DUT power, voltage, and frequency requirements in the target application. Preen (AC Power Corporation, founded 1989) is one of the world's highest-volume programmable power-source manufacturers, with ISO 9001:2015 certified manufacturing facilities in Taipei, Tianjin, and Suzhou, and a U.S. service center in Irvine, California. Preen products carry CE and RoHS certifications and have been recognized with multiple Taiwan Excellence Awards for the AFV, AFV-P, and ADG-P product lines — placing the brand in the established commercial tier alongside California Instruments, Chroma, and Pacific Power Source. How does it compare to alternative AC/DC sources? Compared with California Instruments and Pacific Power Source: Preen typically offers 10–20% lower pricing with strong multi-phase capability — ideal for budget-conscious compliance labs and three-phase applications. Compared with Chroma 61800 series: Preen provides comparable programmability and broader high-power three-phase coverage at competitive ASP. For avionics 400 Hz testing, Preen frequency-converter options (AFC) and AFV+ Type-C 300–840 Hz cover MIL-STD-704 / DO-160 workflows. Accessories Supplied Input power cables sized for the rated kVA Operation manual and quick-start guide Preen Program PC remote control software (complimentary download) Calibration certificate (when applicable) Specifications Specifications below are for the AFV+ Series. The AFV-PLUS-31075 variant within this series is configured as: High Power Programmable AC Power Source (75kVA/310V Single-Phase). Specification Value Phases Single-phase (10–150 kVA) or Three-phase (10–2000 kVA) Output Voltage 0–155 / 0–310 V (L-N) standard; 0–400 / 0–600 V (L-N) optional Frequency Range A: 45–500 Hz · B: 45–120 Hz · C: 300–840 Hz Voltage Accuracy 0.5 % F.S. + 4 counts Frequency Accuracy ± 0.02 % F.S. THD ≤ 0.5 % (resistive load) Line / Load Regulation < 0.5 % / ≤ 0.5 % Response Time ≤ 1 ms Crest Factor ≥ 3 Efficiency ≥ 85–90 % at max power Program Modes STEP: 24 sets / 255 cycles · RAMP: 12 sets / 255 cycles Protections Input N.F.B, Over-Voltage, Under-Voltage; Output OV, OC, OT Remote Interfaces Standard: RS-232 & RS-485 / Ethernet · Optional: GPIB / Analog / USB Interface Card Operating Temperature 0 °C to 45 °C Altitude < 1,500 m Unit Options The AFV-PLUS-31075 accepts the following factory-installed options. Multiple options may be selected. (select all that apply — multi-select) AFV-PLUS-001 — Type A Output Frequency 45–500 Hz AFV-PLUS-002 — Type B Output Frequency 45–120 Hz AFV-PLUS-003 — Type C Output Frequency 300–840 Hz (THD ≤ 2%) AFV-PLUS-004 — Start Angle 0–359° AFV-PLUS-005 — Overload Capability 200 % 2 s / 150 % 5 s / 125 % 15 s AFV-PLUS-006 — Fast Voltage Response (time-setting resolution 0.05 s) AFV-PLUS-007 — Analog Control Interface AFV-PLUS-008 — GPIB Interface AFV-PLUS-010 — Three-Phase Angle Adjustment AFV-PLUS-012 — Input Voltage 200 V AFV-PLUS-013 — Input Voltage 208 V AFV-PLUS-014 — Input Voltage 240 V AFV-PLUS-015 — Input Voltage 400 V AFV-PLUS-016 — Input Voltage 480 V AFV-PLUS-017 — Output Voltage 0–400 V (L-N) AFV-PLUS-018 — Output Voltage 0–600 V (L-N) AFV-PLUS-020 — Interface Card (Ethernet / RS-232 & RS-485 / USB) Calibration Options Factory calibration is provided with each new AFV-PLUS-31075 per the manufacturer's datasheet. Additional ISO 17025-accredited or Z540.1 calibration upgrades are available on request — contact your Test Architect to scope. This webpage was written by a human with an A.I. 'Intern', which may contain errors. Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer.
