How Built-in Inverters Are Revolutionizing Transformer Loss Testing

Industry Challenges:Power Access in Remote Areas

During the acceptance testing of new substations or remote sites, the lack of stable three-phase power is a major hurdle. Traditional methods rely on heavy generators, which lead to high logistics costs and measurement errors due to unstable power quality.

Core Technology:Lithium-powered Inverter Integration

The Transformer Capacity & Loss Tester integrates high-capacity lithium batteries with efficient three-phase inverter technology. It generates an autonomous sine wave power supply without external input. The built-in soft-start and soft-stop functions prevent current surges, ensuring testing continuity and independence.

Working Principle:Short-circuit Testing & Smart CalculationThe device evaluates performance using the short-circuit test method:

• Automated Regulation: It applies low voltage to the primary winding and automatically adjusts the output until the rated current is reached.
• Synchronous Sampling: Utilizing 6-channel synchronous AC sampling, it precisely captures active power (Copper Loss) under rated conditions.
• Automatic Correction: Advanced algorithms perform temperature and frequency corrections, converting raw data into standard values and calculating impedance voltage.

Conclusion:Essential Tool for Power Maintenance

By streamlining the testing process and ensuring high precision,and ensure the stable operation of power systems. It has become an indispensable tool for transformer manufacturers, power supply companies, substations and electrical maintenance teams worldwide.