The transformer loss parameter tester can measure parameters such as no-load loss, load loss, zero-sequence impedance, voltage RMS, voltage average, current, power, power factor, frequency, and low-voltage impedance measurement (checking winding deformation) of the main transformer.
Technical Parameters
■ Voltage (V): Range 500V ± (0.25% of reading + 0.25% of range) ■ Current (A): Range 80A ± (0.25% of reading + 0.25% of range)
■ Power (W): ± (0.25% of reading + 0.25% of range)
■ Power Factor: Range 0~1, accuracy ±5 digits
■ Frequency: 40~60Hz, 0.05%
■ Measurement Accuracy: Class 0.5
■ Power Supply: AC 220V±10%, 50Hz±2%
■ Total Power Consumption: Less than 25W
■ Operating Temperature: 0~40℃
■ Ambient Humidity: 30%~90%
■ Dimensions: 390×310×220mm
■ Weight: 6kg (main unit)
Main Features
The transformer loss parameter tester is a dedicated device for measuring power transformer loss parameters. It adopts digital synchronous sampling technology to accurately measure the RMS values of voltage, current, power, power factor, frequency, and other parameters of three-phase electrical equipment.
It mainly tests the no-load loss (iron loss) and load loss (copper loss) of transformers. It has a wide linear range, good reading repeatability, and stable performance.
Ensures accurate measurement of power factor from 0.0001 to 1.000, especially suitable for detecting low power factor loads.
The convenient latching function ensures the simultaneity of measurement data and ease of operation.

Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.