True Sine Wave AC Source

1.Power range: 1kVA to 15kVA single‑phase, 3kVA to 45kVA three‑phase
2.Output purity: THD < 1.5% at linear load (typical), pure sine wave
3.Input: 220V or 380V, 50/60Hz ±15%
4.Adjustability: 0‑300V (L‑N), 45Hz‑500Hz
5.Key feature: Galvanic isolation transformer – no ground loops, no DC on output
6.Applications: Medical device testing, audio power amps, precision sensors, avionics bench power
7.Brand: ACSOON (CE, ISO9001, 1‑year warranty).

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Product Description

True Sine Wave AC Source | Low‑Distortion Programmable AC Power for Sensitive Loads

Most "pure sine wave" inverters and power sources aren't actually that clean. They spec 3% THD, but at 400Hz or under load, that number climbs to 5‑7%. That's fine for a light bulb. It’s not fine for a medical ultrasound, a high‑end audio amplifier, or a avionics bus.Our True Sine Wave AC Source is different. We designed it for people who measure distortion with an AP analyzer, not just a cheap power meter. At 50/60Hz, typical THD is under 1%. At 400Hz, under 2% – even at full load. And the output stays clean from 45Hz to 500Hz.We don't advertise "lab grade" lightly. We back it with a full test sheet for every unit.

Datasheet

Parameter	Specification
Model Series	ACSOON ACSW Series
Model Number	ACSW‑110010 (10kVA single phase)
Input	220V ±15% single phase, 50/60Hz
Output Voltage	0‑150V / 0‑300V (L‑N) switchable
Output Frequency	45‑500Hz, 0.1Hz resolution
Output Power	1kVA, 3kVA, 5kVA, 10kVA, 15kVA (single‑phase)
THD	<1.5% from 45‑500Hz, linear load, 20‑100% of range
Load Regulation	< ±1% from 0‑100% load
Line Regulation	< ±0.5% for ±15% input change
Efficiency	84‑87% depending on load
Protections	OVP, OCP, short circuit, over‑temp
Display	4‑digit LED (V, I, Hz, PF)
Communication	RS485 (Modbus) on rear

If you need it,Contact us at Email: acpower@acsoonpower.com

True Sine Wave AC Source Main Features

Low noise linear‑style output stage – we use a high‑switching‑frequency IGBT design with heavy filtering. Acts like a linear amp but runs cool.
Remote sense standard – for 3kVA and above, terminals to compensate for lead drop.
Output on/off with soft start – no voltage spike when you enable the output.
Over‑rating – 125% for 1 minute, 150% for 10 seconds. Handles motor or transformer inrush.

Why Choose ACSOON True Sine Wave AC Source?

Low distortion, guaranteed – every unit is tested at 1kVA, 5kVA, and full load. THD measured with a Keysight analyzer.
Isolated output – transformer isolation means no DC component, no ground loops, and you can safely float the output.
Regulated under all conditions – ±1% voltage, ±0.1% frequency, from no load to full load.
Clean at high frequencies – 400Hz output is not an afterthought. The control loop is tuned for the whole 45‑500Hz range.

True Sine Wave AC Source Application Areas

Medical device test – ECG, ultrasound, patient monitors – these need clean power for Type BF/CF isolation testing.
Audio power amp burn‑in – measure THD+N without the AC source adding its own noise.
Avionics bench – power 400Hz radios, flight displays, and ADAHRS units without adding ripple.
Sensor and transducer calibration – capacitive, inductive, and strain‑gauge sensors react to waveform purity.

Our Services

Quality Control

THD verification – each unit connected to a resistive load, measured at 5 frequencies (50, 60, 400, 45, 500Hz). Results printed on the test sheet.
Regulation test – load stepped from 0 to 100% while recording voltage dip. Must stay within ±1%.
Isolation test – 2.5kVAC between input and output, 1 minute. No breakdown.
Burn‑in – 8 hours at 80% load, ambient 35°C. Thermal camera scan at the end.

R&D Results

Output filter redesign – originally used off‑the‑shelf inductors. They saturated above 300Hz. Now we wind our own with amorphous cores.
Control loop tuning – took six iterations to get stable regulation across 45‑500Hz without oscillation. The final version uses frequency‑sensitive gain scheduling.
Noise floor – we measured output noise with an audio precision APx525. At 115V/60Hz, residual noise is 0.8mV (20Hz‑20kHz). Good enough for most audio work.
Customer feedback – a medical device lab asked for lower leakage current. We added a shielded output transformer. Leakage dropped from 150µA to 30µA.

Packaging and Transportation

Double‑wall carton with 40mm closed‑cell foam. Survives a 1m drop.
Included accessories – power cord (2m), output cable (2m with universal outlets), RS485 USB adapter.
Documentation – printed test sheet, quick start, full manual on USB.
Export packing – wooden crate for sea freight (adds 15kg, $80). Palletized for multiple units.

After‑Sales Service

2‑year warranty on electronics, 1‑year on fan and connectors.
Firmware updates – free for life, we email you a file and instructions.
Spare parts – output IGBT modules, control board, fan. In stock in Xi'an, Chicago, and Frankfurt.
Support – email only, but we answer within 8 hours (faster if you put "urgent" in the subject).

Qualification Certification

CE – LVD 2014/35/EU, EMC 2014/30/EU；RoHS – all components；ISO 9001:2015 – factory certification；Test report – each unit includes a signed report with measured THD, regulation, and isolation test results.

FAQ
Q1: What's the actual THD at 400Hz and full load?
A: On a typical unit, about 1.8%. We guarantee <2.0%. The worst we've ever seen was 2.2% – that unit got a new output filter before shipping.
Q2: Can I use this to test switch‑mode power supplies?
A: Yes. The output impedance is low enough (about 0.1 ohm) that it handles the high crest factor of SMPS inputs. But don't expect it to regulate perfectly during a 200% surge – no linear source can.
Q3: How do I connect a single‑phase unit to a three‑phase device?
A: You don't. For three‑phase loads, buy our three‑phase model (ACSW‑330xxx). But you can use three single‑phase units in parallel with external synchronization – contact us for a wiring diagram.
Q4: Is the output floating or grounded?
A: Floating. The isolation transformer secondary has no center tap. You can ground one side or leave it floating. We ship it with a grounding link that you can install or remove.
Q5: What's the lead time for a 10kVA unit?
A: 3‑4 weeks. We keep some 5kVA units in stock (2 weeks). For faster, ask about our express assembly service (+15%, 5‑7 days).

Contact Us

For technical specifications or global solutions for the True Sine Wave AC Source: acpower@acsoonpower.com, or submit your requirements using the form at the bottom of our website.