Product Overview
The DR-8000 Transformer Winding Deformation Tester uses Frequency Response Analysis (FRA) to detect mechanical deformation that may occur in power transformer windings during transportation, installation, or operation, such as axial and radial distortion and inter-turn short circuits. By measuring the response characteristics of the winding at different frequencies and comparing them with historical data or among the three phases, the instrument helps determine the condition of the winding.
Technical Parameters
Frequency range: 1kHz～2MHz; Frequency accuracy: ±0.01%; Sweep mode: linear or logarithmic; Measurement channels: dual-channel synchronous acquisition; Impedance matching: 50Ω; Dynamic range: >90dB; Storage capacity: can save 1000 sets of test data; Display: 7-inch color LCD touch screen; Communication interface: USB, RS232; Power supply: AC 220V±10%, 50Hz; Working environment: temperature -10℃～50℃, humidity ≤85%RH.
Functional Features
1. It adopts synchronous detection of sweep excitation and response signals to obtain the amplitude-frequency response curve of the winding. 2. It has automatic three-phase comparison and historical data comparison functions, and supports the calculation of multiple correlation coefficients. 3. It has a built-in database of typical transformer winding models for reference analysis. 4. Touch screen operation, simple interface, and support for data export to USB flash drive. 5. It has self-check and calibration functions to ensure measurement consistency.
Application Scenarios
It is suitable for transformer maintenance and preventive testing in power systems, power plants, substations, and industrial enterprises, and can perform winding deformation detection on power transformers of 35kV and below. It can also be used for quality inspection during transformer manufacturing and for diagnostic analysis after faults.
