Accurate Diagnosis Of Transformer Internal Faults Winding Deformation Tester

The XHBX1501 transformer winding deformation tester (frequency response method) is used to test power transformers of 6KV and above and other special purpose transformers.

XHBX1501 transformer winding deformation tester uses the frequency response analysis method to measure the winding deformation of the transformer according to the national power industry standard DL/T911-2004. It is to detect the amplitude-frequency response characteristics of each winding of the transformer and compare the detection results vertically or horizontally. The degree of change in the amplitude-frequency response characteristic determines the deformation that may occur in the transformer winding.

The XHBX1501 transformer winding deformation tester (frequency response method) consists of a measurement part and an analysis software part. The measurement part is a black box composed of signal generation and signal measurement. The analysis part is completed by a notebook computer, and the measurement part is connected to the notebook computer via USB or network.

• Adopt control uses high-speed, high-integration microprocessor.
• Communication USB port between laptop and instrument.
• Wireless Bluetooth port (optional) for communication between laptop and instrument.
• The hardware movement adopts DDS special digital high-speed frequency sweeping technology (USA), which can accurately diagnose faults such as twisting, bulging, displacement, tilting, inter-turn short-circuit deformation and phase-to-phase contact short-circuit.
• high-speed dual-channel 16-bit A / D sampling (field test to change the tap-changer, the waveform curve has a clear change).
• The signal output amplitude software adjustment, the maximum amplitude peak is ± 10V.
• The computer will automatically analyze the test results and generate e-documents (Word)
• The instrument has the functions of linear sweep frequency measurement and segmented sweep frequency measurement dual measurement system, which is compatible with the current domestic two technical genre measurement modes.
• The amplitude-frequency characteristic is in line with the national technical indicators of the amplitude-frequency characteristic tester. The abscissa (frequency) has two types of linear indexing and logarithmic indexing. Therefore, the printed curve can be a linear indexing curve or a logarithmic indexing curve, and the user can select according to actual needs.
• Automatic data analysis system for detection data,
  • Horizontal comparison of winding similarities between A, B, and C phases,
  • The analysis results are:
    • ① consistency is very good
    • ② good consistency
    • ③ poor consistency
    • ④ consistency is very poor,
  • Longitudinal comparison A-A, B-B, C-C take the original data and the current data in the same phase to compare the winding deformation,
  • The analysis results are:
    • ① normal winding
    • ② mild deformation
    • ③ moderate deformation
    • ④ severe deformation
• Can automatically generate Word e-documents for saving and printing.
• The instrument fully meets the technical requirements of the power standard DL/T911-2004 "Frequency Response Analysis Method for Winding Deformation of Power Transformers.

Low voltage magnitude - frequency curve

High voltage magnitude - frequency curve