1_1790735436221.webp)
_1790735453488.webp)
_1790735453598.webp)
_1790735453654.webp)
_1790735453600.webp)
_1790735453658.webp)
WJF60W Variable Frequency AC Power Supply for Transformer and Partial Discharge Testing
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 Variable Frequency AC Power Supply for Transformer and Partial Discharge Testing
The ACSOON WJF60W Series Variable Frequency AC Power Supply is designed for transformer, cable and high-voltage electrical testing applications where adjustable voltage, frequency and low partial discharge are required.
It can be used as the AC power source in induced voltage, withstand voltage and partial discharge test systems, working together with isolated step-up transformers, inductors and partial discharge measuring instruments.
The WJF60W combines IGBT and high-frequency SPWM technology with isolated output, providing a clean sine wave, adjustable frequency and stable output for HV/LV laboratory and electrical testing applications.
Request a Configuration & Quote
Key Specifications
Power Capacity: 5–500kVA Single Phase / 5–2000kVA Three Phase
Frequency Range: 45–400Hz Adjustable
Output Voltage: 220V 1PH / 380V 3PH / Customized
Adjustable Voltage: 0.1–800V L-L, Three Phase
Partial Discharge: ≤10pC
THD: <3% at Linear Load
Communication: RS485 / RJ45
Protection: IP20/IP21 Standard; IP32/IP54 Optional
Protection & Reliability
The WJF60W incorporates protection and alarm functions for:
Overcurrent
Overload
Overtemperature
Short Circuit
Overload Capability
125% — 30 seconds
150% — 1 second
Environmental & Protection Data
Standard IP Class: IP20/IP21
Optional: IP32/IP54
Operating Temperature: -10°C to 45°C
Humidity: 10–95%
Noise: <70dB at 1 meter
MTBF: 50,000 hours
| Parameter | WJF60W Series |
|---|---|
| Input Phase | Single Phase / Three Phase |
| Nominal Input Voltage | 220V 1PH / 380V 3PH / Customized |
| Input Voltage Tolerance | ±15% |
| Input Frequency | 50Hz / 60Hz |
| Input Frequency Tolerance | 40–70Hz |
| Output Phase | Single Phase / Three Phase |
| Nominal Output Voltage | 220V 1PH / 380V 3PH / Customized |
| Adjustable Output Voltage | 0.1–800V L-L, Three Phase + Ground |
| Adjustable Frequency | 45–400Hz / Customized |
| Voltage Stability | ±1% FS |
| Frequency Stability | ±0.1% FS |
| Output Waveform | Pure Sine Wave |
| THD | <3% @ Linear Loads |
| Partial Discharge | ≤10pC |
| Input Power Factor | ≥0.8 |
| Efficiency | ≥85% |
| Display | 7 / 10-inch Touchscreen |
| Communication | RS485 / RJ45 |
| Overload Capacity | 125% 30s / 150% 1s |
| IP Protection | IP20/IP21; IP32/IP54 Optional |
| MTBF | 50,000 Hours |
| Operating Temperature | -10°C to 45°C |
45–400Hz Adjustable Frequency
The output frequency can be continuously adjusted from 45Hz to 400Hz, while customized frequency configurations are also available.
The WJF60W is compatible with both 50Hz and 60Hz input power networks, allowing laboratories to establish the required test frequency independently of the local mains supply.
01
Adjustable Output Voltage
Standard configurations include:
220V Single Phase
380V Three Phase
Other input and output voltages can be customized according to project requirements.
For three-phase configurations, the specified adjustable output voltage is:
0.1–800V L-L ACSOON WJF60W Static Frequency …
02
Clean and Stable AC Output
The WJF60W provides a pure sine-wave output suitable for electrical test applications.
Voltage Stability: ±1% FS
Frequency Stability: ±0.1% FS
THD: <3% at Linear Loads
Overall Efficiency: ≥85%
Input Power Factor: ≥0.8
03
Wide Power Range
The WJF60W Series covers both laboratory-scale systems and high-capacity electrical test projects.
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
04
Touchscreen Control & Communication
The WJF60W is equipped with a 7-inch or 10-inch touchscreen for real-time operating monitoring.
The display provides:
Voltage
Current
Frequency
Power
Power Factor
Time Setting
Voltage and frequency can be adjusted according to test requirements.
The system also supports RS485 and RJ45 communication interfaces for connection with monitoring and test-control systems.
Applications
The WJF60W is designed primarily for high-voltage electrical testing and laboratory applications.
Transformer Induced Voltage Test
Provides adjustable voltage and frequency for transformer induced-voltage test systems.
Transformer Partial Discharge Test
Provides a controlled AC source for transformer partial discharge measurement systems.
High-Voltage Cable Withstand Test
Suitable as the AC power source for high-voltage cable withstand test systems.
CT / VT Testing
Suitable for electrical and insulation testing of current transformers and voltage transformers.
Insulator Testing
Provides controlled AC conditions for insulator testing and evaluation.
High-Voltage Insulation Research
Suitable for HV/LV laboratories and research facilities requiring an adjustable AC test source.
These application areas are specified for the WJF60 Series in the technical documentation.
Customized Configuration
Different transformer and high-voltage test systems require different electrical configurations.
The WJF60W can therefore be configured according to the actual project requirements.
Available Customization
Power Capacity
Select according to the required test load.
Input & Output Voltage
Standard or customized voltage configurations.
Frequency Range
45–400Hz standard adjustable range or customized configuration.
Phase Configuration
Single-phase or three-phase.
Protection Grade
IP20/IP21 standard; IP32/IP54 optional.
Cabinet Configuration
Configured according to capacity and project requirements.
Appearance & Branding
Custom cabinet color and customer LOGO/OEM options are available.
The standard specification describes an upright sheet-steel cabinet with removable side panels, cooling fans and accessible internal components for maintenance.
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.
How to Select the Right WJF60W
For accurate model selection, please provide the following information:
1. Test Object: Transformer / Cable / CT / VT / Insulator / Other
2. Required Capacity: ___ kVA
3. Input Voltage: ___ V
4. Required Output Voltage: ___ V
5. Required Frequency: ___ Hz
6. Phase: Single Phase / Three Phase
7. Partial Discharge Requirement: ___ pC
8. Test Duration / Duty Cycle: ___
Based on these parameters, the appropriate capacity, voltage, frequency and phase configuration can be selected.
Warranty
1-Year Standard Warranty
Technical support is available for product selection, configuration and operation.
FAQ |
|---|
Frequently Asked QuestionsWhat is the WJF60W mainly used for?The WJF60W is designed for transformer induced voltage tests, transformer partial discharge tests, high-voltage cable withstand tests, CT/VT testing, insulator testing and high-voltage insulation research. ACSOON WJF60W Static Frequency … What is the partial discharge level?The specified partial discharge level of the WJF60W is ≤10pC. What frequency and voltage ranges are available?The standard frequency range is 45–400Hz. Standard nominal output configurations include 220V single phase and 380V three phase, while customized voltages are available. The three-phase adjustable output is specified at 0.1–800V L-L. What power capacities are available?Single-phase models range from 5–500kVA, while three-phase configurations range from 5–2000kVA. Can the WJF60W be customized for my test system?Yes. Capacity, input/output voltage, frequency range, phase configuration and enclosure protection can be configured according to project requirements. What information is required for model selection?Please provide the test object, required capacity, input voltage, output voltage, frequency range, phase configuration, partial-discharge requirement and test duration. |
| 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.
_1790734797777.webp)
