# AFV-PLUS-31120 Preen AC Source New

## 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-31120 — High Power Programmable AC Power Source (120kVA/310V Single-Phase)

In summary, the Preen AFV-PLUS-31120 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-31120 used for?

The AFV-PLUS-31120 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-31120 fit in a typical lab workflow?

The AFV-PLUS-31120 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-31120 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-31120 variant within this series is configured as: **High Power Programmable AC Power Source (120kVA/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-31120 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-31120 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.

## Details

- **Price:** 0.0 USD
- **Vendor:** Preen
- **Type:** AC Sources
- **Tags:** AC Power Source, AC Source, aerospace-defense, AFV+ Series, afv-plus, afv-plus-31120, analog, ce-marked, ethernet, ev-charger-test, gpib, high-power, Manufacturers, medical, Power Supplies & Loads, Preen, product_manual_group_1, product_manual_group_2, Product_new, programmable-ac-source, rohs-compliant, rs232, rs485, single-phase, three-phase, usb

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 0.00 USD | In stock |

## Images

- AFV-PLUS-31120 Preen AC Source

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> Source: [ValueTronics](https://valuetronics.com/products/afv-plus-31120-preen-ac-source-new)
> Updated: 2026-05-21