WJF60W Partial Discharge Test AC Power Supply

1. Power Capacity: 5-500kVA single-phase output / 5-2000kVA three-phase output

2. Input: Single-phase / three-phase; 220VAC single-phase or 380VAC three-phase; 50/60Hz; customized voltage available

3. Output: Single-phase / three-phase; 220VAC single-phase or 380VAC three-phase; three-phase adjustable voltage 0.1-800V L-L

4. Frequency Range: 45-400Hz adjustable; customized frequency configurations available

5. Performance: Partial discharge ≤10pC; voltage stability ±1% FS; frequency stability ±0.1% FS; THD <3% at linear loads

6. Key Applications: Transformer induced voltage testing, partial discharge testing, HV cable withstand testing, CT/VT testing and insulation research

7. Key Features: Clean sine wave output; 7/10-inch touchscreen; real-time voltage, current, frequency, power and power factor display

8. Communication & Protection: RS485/RJ45; IP20/IP21 standard; IP32/IP54 optional; overcurrent, overload, overheat and short-circuit protection

9. Brand: ACSOON (capacity, input/output voltage, frequency, phase, LOGO, cabinet color and OEM customization available)

Product Description

WJF60W Partial Discharge Test AC Power Supply

The ACSOON WJF60W Series AC Power Supply / Static Frequency Converter is designed for electrical testing applications that require adjustable voltage and frequency with low partial discharge.

Unlike a general-purpose frequency converter, the WJF60W is developed for HV/LV laboratories, transformer testing, cable testing and insulation research. It can operate as the AC power source in a withstand-voltage or partial-discharge test system together with isolated step-up transformers, inductors and partial-discharge measuring instruments.

The system integrates IGBT and high-frequency SPWM technology to provide controllable AC output, high overload capability and reliable operation.

Request a Configuration & Quote

Custom Configuration

WJF60W systems can be configured according to the actual test requirements, including power capacity, input/output voltage, single- or three-phase configuration, frequency range and enclosure protection.

Standard units use a free-standing sheet-steel cabinet. The technical specification describes a standard RAL7035 powder-coated enclosure with removable side panels for component access and maintenance. ACSOON WJF60W Static Frequency …

ACSOON also supports project-specific LOGO, cabinet color and OEM appearance customization.

Stable and Adjustable AC Output

The WJF60W provides a standard adjustable frequency range of 45–400Hz. Standard nominal output configurations include 220V single phase and 380V three phase, while other voltage configurations can be customized.

For three-phase applications, the specified adjustable output voltage range is 0.1–800V L-L.

Output performance includes:

Voltage regulation and stability: ±1% FS
Frequency stability: ±0.1% FS
Output waveform: Pure sine wave
THD: <3% at linear loads
Partial discharge: ≤10pC
Overall efficiency: ≥85%

Low Partial Discharge for Electrical Testing

For transformer and high-voltage insulation testing, interference generated by the test power source can affect the test environment.

The WJF60W is specified with a partial-discharge level of ≤10pC, making it suitable for test systems where low partial-discharge performance is required.

Combined with galvanic isolation and low harmonic distortion, the unit provides a controlled AC source for laboratory and production test environments.

Wide Power Capacity Range

Different test objects require very different power capacities. The WJF60W Series therefore covers both laboratory-scale and large electrical test systems.

Single-phase output:
5 / 10 / 15 / 20 / 30 / 45 / 60 / 75 / 100 / 150 / 200 / 300 / 400 / 500kVA

Three-phase output:
5 / 10 / 15 / 20 / 30 / 45 / 60 / 75 / 100 / 150 / 200 / 300 / 400 / 500 / 600 / 800 / 1000 / 1500 / 2000kVA

Custom Configuration

ACSOON also supports project-specific LOGO, cabinet color and OEM appearance customizatio

Touchscreen Control and Monitoring

The WJF60W is equipped with a 7-inch or 10-inch touchscreen for displaying key operating parameters in real time, including:

Voltage / Current / Frequency / Power / Power Factor / Time Setting

Voltage and frequency can be adjusted according to the test requirement. The system also provides RS485 and RJ45 communication interfaces for monitoring and integration with test systems.

Protection Functions

For operation in laboratory and industrial test environments, the WJF60W includes protection and alarm functions for:

Overcurrent / Overload / Overtemperature / Short Circuit

The specified overload capacity is:

125% for 30 seconds
150% for 1 second

Standard enclosure protection is IP20/IP21, with IP32 and IP54 available as options.

The WJF60W Series is suitable for:

Transformer induced-voltage testing
Transformer partial-discharge testing
High-voltage cable withstand testing
Current transformer testing
Voltage transformer testing
Insulator testing
High-voltage insulation research
HV/LV laboratory electrical testing

These applications correspond directly to the intended applications specified for the WJF60 Series.

Our Services

Quality Control

AVR Function Test: Each unit is tested to verify correct boosting and bucking operation across the specified input voltage range.
Transfer Time & Waveform Analysis: The switch to battery mode is measured to ensure speed and that output waveform remains clean and stable.
Battery Calibration & Load Test: Internal batteries are calibrated and tested under load to verify rated runtime.
Full System Burn-in: A final operational test under cyclic load conditions ensures reliability before packaging.

R&D Results

Enhanced AVR Transformer Design: Developed a more efficient and compact multi-tap transformer for wider input range and faster correction.
Advanced Battery Management: Implemented precise charging algorithms to maximize battery lifespan and health.
Intelligent Fan Control: Engineered a temperature-based fan control system for quiet operation during normal use and effective cooling during extended backups.
Unified Management Software: Created simple, cross-platform software for battery runtime monitoring, event logging, and automatic shutdown.

Packaging and Transportation

Retail-Ready Packaging: Units are boxed in high-quality cardboard with molded foam inserts, suitable for retail or direct shipment.
Complete Accessory Inclusion: Package includes user manual, communication cables, installation CD/software, and warranty card.
Clear Safety & Setup Information: Packaging and quick-start guides feature clear multilingual instructions for safe installation.
Standard & Express Shipping: Available through common carriers with reliable tracking to businesses and institutions worldwide.

After‑Sales Service

We offer a 24-month warranty on the UPS and a 12-month warranty on the batteries. Support includes online resources, software downloads, and accessible technical support via email and phone.

Qualification Certification

ISO 9001:2015 Certified manufacturing;CE, RoHS Compliant; Tested to IEC 62040 Standards for UPS performance and safety.

FAQ

Frequently Asked Questions

1. What is the WJF60W mainly used for?

The WJF60W is designed for transformer induced voltage tests, partial discharge tests, high-voltage cable withstand tests, CT/VT and insulator testing, and high-voltage insulation research.

2. What is the partial discharge level?

The specified partial discharge level is ≤10pC, making the WJF60W suitable for test systems requiring low partial-discharge interference from the power source.

3. What frequency and voltage ranges are available?

The standard output frequency is adjustable from 45Hz to 400Hz. Standard nominal output is 220V single phase or 380V three phase, with customized voltage available. Three-phase adjustable output is specified at 0.1–800V L-L.

4. What power capacities are available?

Single-phase models are available from 5kVA to 500kVA, while three-phase configurations range from 5kVA to 2000kVA.

5. Can the WJF60W be customized for my test system?

Yes. Capacity, input/output voltage, frequency range, phase configuration and enclosure protection can be selected according to the test requirements. Standard protection is IP20/IP21, with IP32/IP54 available as options.

6. What information should I provide for model selection?

Please provide your test object, required capacity (kVA), input voltage, required output voltage, frequency range, phase configuration and partial-discharge requirement. These parameters help determine the appropriate WJF60W configuration.

CTA button: Request a Configuration & Quote

Contact Us

For technical specifications or global solutions for WJF60W: acpower@acsoonpower.com, or submit your requirements using the form at the bottom of our website.