Unbalanced Load AC Power Supply

1.Power Range: 10kVA to 60kVA (Three Phase)
2.Technology: IGBT-based Static Frequency Converter with Independent Phase Control
3.Input: 3-Phase, 380V/400V/415V, 50/60Hz
4.Output: 0-520V Adjustable, 45-400Hz Variable Frequency, Independent Phase Outputs
5.Applications: Unbalanced Load Simulation, R&D Laboratories, Power System Testing, Avionics Test
6.Core Features: Independent Phase Regulation, Handles 100% Phase Imbalance, Low THD, Isolated Output Transformer
7.Brand: ACSOON (Custom Configurations Available).

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Product Description

Unbalanced Load AC Power Supply | Three-Phase AC Source with Independent Phase Control

XI'AN JERRYSTAR INSTRUMENT CO., LTD presents the specialized Unbalanced Load AC Power Supply, engineered to handle the most demanding unbalanced load conditions in three-phase systems. This advanced AC source features independent phase regulation, allowing each phase to operate independently with different loads while maintaining precise voltage and frequency stability. It is the ideal solution for testing power systems, avionics, and industrial equipment that experience severe phase imbalances.

Datasheet

Parameter	Specification
Model Series	ACSOON AF60W Series (Special Configuration)
Model Number	AF60W-330060 (60kVA Three Phase)
Input	3-Phase 380V/400V/415V ±15%, 50/60Hz
Output	Voltage: 0-520V (L-L) adjustable per phase Frequency: 45-400Hz adjustable Power: 10kVA, 15kVA, 20kVA, 30kVA, 45kVA, 60kVA
Output THD	<3% @ linear load
Regulation	Voltage: ≤ ±1% FS, Frequency: ≤ ±0.1% FS
Unbalance Capability	100% single-phase load capability
Efficiency	≥85%
Display	Digital LED (V, I, F, P per phase)
Communication	RS485 (Modbus)
Protections	Independent Phase Over Current, Over Voltage, Short Circuit, Over Temperature
Cooling	Forced Air
Operating Temp.	-10°C to 45°C

Unbalanced Load AC Power Supply Main Features

100% Unbalance Capability: Each phase can be loaded independently up to full rated current.
Low Harmonic Output: Clean sine wave output with THD <3% ensures accurate test results.
Wide Adjustment Range: Voltage 0-520V, frequency 45-400Hz for diverse applications.
Comprehensive Protection: Independent over-current protection on each phase, plus overall system safeguards.

Why Choose ACSOON Unbalanced Load AC Power Supply?

Independent Phase Control: Each phase operates independently, maintaining precise voltage regulation even with 100% phase imbalance.
Superior Load Handling: Designed to power unbalanced loads without derating or performance degradation.
Isolated Output Transformer: Galvanic isolation between phases ensures safety and prevents cross-phase interference.
Versatile Application: Ideal for testing power distribution systems, avionics, and industrial equipment under realistic unbalanced conditions.

Unbalanced Load AC Power Supply Application Areas

Aircraft Power System Testing: Simulating real-world unbalanced loads on aircraft electrical distribution systems.
Power Electronics R&D: Testing inverters, rectifiers, and power supplies under unbalanced grid conditions.
Industrial Automation: Powering equipment with uneven phase loading, such as single-phase loads on three-phase systems.
Military & Aerospace: Validating power quality equipment for critical defense applications.

Our Services

Quality Control

Phase Independence Validation: Each unit tested with 100% load on single phase to verify regulation and stability.
Full-Load Burn-In: Extended operation under maximum unbalanced conditions to ensure reliability.
Isolation Test: Dielectric strength and insulation resistance verified between phases and ground.
Final Functional Audit: All protections, displays, and communication interfaces thoroughly tested.

R&D Results

Independent Phase Regulation Algorithm: Developed proprietary control system maintaining precise voltage on each phase regardless of load imbalance.
Enhanced Output Stage: Designed IGBT inverter modules capable of delivering full current on any single phase.
Advanced Transformer Design: Engineered isolated output transformer with minimal cross-coupling between phases.
Real-Time Monitoring: Implemented per-phase measurement for voltage, current, and power factor.

Packaging and Transportation

Industrial-Grade Crating: Unit secured in reinforced wooden crate with internal bracing.
Weather Protection: Moisture barrier and desiccant for safe sea freight.
Complete Documentation: User manual, test reports, wiring diagrams, and warranty information.
Global Logistics: Coordinated shipping with full tracking and customs support.

After‑Sales Service

We offer an 18-month warranty, technical support for application setup, and guaranteed spare parts availability.

Qualification Certification

ISO 9001:2015 Certified manufacturing quality system；CE Marked for European market compliance；Factory Test Report: Provided with detailed per-phase performance data.

FAQ
Q1: What does "unbalanced load" mean in three-phase systems?
A: An unbalanced load occurs when the current drawn on each phase is different, often due to single-phase loads connected to a three-phase system. This can cause voltage drops and regulation issues in standard power supplies.
Q2: Can this supply handle a 100% load on just one phase?
A: Yes, it is specifically designed to handle any single-phase load up to the full rated power of that phase, maintaining voltage regulation within specifications.
Q3: Is this suitable for testing aircraft electrical systems?
A: Absolutely. Aircraft power systems often experience unbalanced loads. This supply accurately simulates those conditions for testing and validation.
Q4: How is it different from a standard three-phase AC source?
A: Standard three-phase sources typically require balanced loads to maintain output quality. This unit has independent phase regulation, allowing each phase to be loaded differently without affecting others.
Q5: What communication options are available?
A: Standard RS485 Modbus interface allows remote monitoring of all three phases and control of output parameters.

Contact Us

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