Deformation Tester
Darui Electric recommends
Product Features:
◆ Using frequency sweep method to measure transformer winding characteristics, without lifting the transformer cover or disassembling, by detecting the amplitude-frequency response characteristics of each winding, for transformers of 6kV and above, accurately measure winding deformation such as twisting, bulging, or displacement.
◆ Fast measurement speed, measurement time for a single winding is 30 seconds to 90 seconds.
◆ Very high frequency accuracy, accuracy higher than 0.001%.
◆ Digital frequency synthesis, higher frequency stability.
◆ 5000V voltage isolation, fully protecting the test computer safety.
◆ Can load up to 9 curves simultaneously, automatically calculate relevant parameters of each curve, automatically diagnose winding deformation, and give diagnostic reference conclusions.
◆ Powerful analysis software, software and hardware indicators meet DL/T911-2004 standard.
◆ Software management is user-friendly and highly intelligent; after setting parameters, only one button is needed to complete all measurement work.
◆ Software interface is simple and intuitive, menus for analysis, storage, report export, printing, etc., are clear at a glance.
Product Parameters:
◆ Measurement speed: single-phase winding 30 seconds to 90 seconds
◆ Output voltage: Vpp-25V, automatically adjusted during test
◆ Output impedance: 50Ω
◆ Input impedance: 1MΩ (response channel built-in 50Ω matching resistor)
◆ Sweep frequency range: 10Hz - 2MHz (10MHz optional)
◆ Frequency accuracy: 0.001%
◆ Sweep mode: linear or logarithmic, sweep interval and points can be set arbitrarily
◆ Curve display: amplitude-frequency curve (phase-frequency curve, optional)
◆ Wide measurement dynamic range: -120dB to 20dB
◆ Power supply voltage: AC220V±10%
◆ Host weight: 5 kg
Product Introduction:
Portable transformer winding deformation tester is used to test power transformers of 6kV and above voltage levels and other special-purpose transformers. Power transformers inevitably suffer impacts from various fault short-circuit currents or physical collisions during operation or transportation. Under the strong electrodynamic force generated by short-circuit current, transformer windings may lose stability, leading to permanent deformation such as local twisting, bulging, or displacement, which will seriously affect the safe operation of the transformer. The portable transformer winding deformation tester adopts the frequency response analysis method according to the national electric power industry standard DL/T911-2004 to measure transformer winding deformation. It detects the amplitude-frequency response characteristics of each transformer winding and performs longitudinal or horizontal comparison of the detection results. Based on the degree of change in amplitude-frequency response characteristics, it determines the possible deformation of the transformer winding.
Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.
