Transformer Winding Deformation Tester - Yangzhou Darui

Transformer Winding Deformation Tester - Yangzhou Darui

Published: 2020-08-03 10:43:02

Category: Transformer Ratio Tester

Product Description

Transformer Winding Deformation Tester

Darui Electric recommends

Product Features:

1.USB communication interface between PC and instrument.

2.Automatically generates Word electronic documents for saving and printing.

3.Computer generates electronic documents (WORD) from test results.

4.Signal output amplitude can be software-adjusted, peak ±10V.

5.Acquisition control uses high-speed, highly integrated microprocessor.

6.Finished circuit board with special surface treatment, resistant to water and harmful gas pollution.

7.Laptop and measuring instrument are powered by isolated power supply to eliminate external interference.

8.High-resolution dB value measurement, dual-channel 16-bit A/D (on-site test changing tap changer shows obvious output changes).

9.High-stability components selected; repeated tests on the same phase have a repeatability rate of over 99.5%.

10.The instrument has dual measurement systems: linear sweep frequency measurement and segmented sweep frequency measurement, compatible with the two current domestic technical schools of measurement modes.

11.Amplitude-frequency characteristics comply with national technical indicators for amplitude-frequency testers. The horizontal axis (frequency) has both linear and logarithmic scales, so printed curves can be either linear or logarithmic, depending on user needs.

12.Fully meets the technical conditions of the electric power standard DL/T911-2004 "Frequency Response Analysis Method for Power Transformer Winding Deformation".

13.The hardware core uses DDS dedicated digital high-speed sweep frequency technology (USA), which can accurately diagnose faults such as winding distortion, bulging, displacement, tilting, inter-turn short circuit deformation, and phase-to-phase contact short circuits.

14.The detection data automatic analysis system compares the similarity of windings among phases A, B, and C horizontally, with results: ①Very good consistency ②Good consistency ③Poor consistency ④Very poor consistency. Vertically compares A-A, B-B, C-C by retrieving original data and current data for the same phase to compare winding deformation, with results: ①Normal winding ②Slight deformation ③Moderate deformation ④Severe deformation.

The transformer winding deformation tester quantifies the response changes of internal winding parameters in different frequency domains, and determines the degree of internal winding deformation based on the magnitude of change, amplitude of frequency response change, area, and trend of frequency response change. It can then judge whether the transformer has been severely damaged and whether major repair is needed.

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

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Product Details

Transformer Winding Deformation Tester - Yangzhou Darui