Product IntroductionProduct Introduction
The transformer winding deformation tester uses the internal fault frequency response analysis (FRA) method, which is currently being developed and improved in developed countries around the world, to accurately diagnose internal faults in transformers based on the measurement of characteristic parameters of the internal windings.
After the completion of transformer design and manufacturing, its coil and internal structure are determined. Therefore, for a multi winding transformer coil, if the voltage level is the same and the winding method is the same, the corresponding parameters (Ci, Li) for each coil should be determined. Therefore, the frequency domain characteristic response of each coil is also determined, and the corresponding frequency spectra between the three-phase coils have a certain comparability.
During the testing process, the transformer may experience inter turn or inter phase short circuits, or collisions during transportation, resulting in relative displacement of the coils. Additionally, during operation, the distribution parameters of the transformer winding may change due to electromagnetic tension caused by short circuits and faults. Furthermore, it affects and alters the original frequency domain characteristics of the transformer, such as amplitude changes in frequency response and harmonic frequency point shifts. The transformer winding tester developed based on response analysis method is a novel non-destructive testing equipment for internal faults of transformers. It is suitable for internal structural fault detection of 63kV~500kV power transformers.
Product nickname: Power Transformer Winding Deformation Tester, Transformer Winding Deformation Detector, Transformer Winding Deformation Measuring Instrument, Transformer Winding Deformation Analyzer
Product parametersProduct Parameters
Scanning method: (The instrument has a dual measurement system of linear sweep frequency measurement and segmented sweep frequency measurement)
Linear sweep frequency distribution | Sweep frequency measurement range | (1kHz)~(2MHz) |
Segmented sweep frequency measurement distribution | Sweep frequency measurement range | (0.5kHz)~(1MHz) |
(0.5kHz)~(10kHz) | ||
(10kHz)~(100kHz) | ||
(100kHz)~(500kHz) | ||
(500kHz)~(1000kHz) |
Technical Parameter
Amplitude measurement range | (-100dB)~(+20dB) |
Accuracy of amplitude measurement | ±1dB |
Scanning frequency accuracy | 0.01% |
Signal input impedance | 1MΩ |
Signal output impedance | 50Ω |
Repetition rate of in-phase testing | 99.5% |
Measurement instrument dimensions (length x width x height) | 300×340×120mm3 |
Dimensions of instrument aluminum alloy packaging box (length x width x height) | 310×400×330mm3 |
Overall weight | 10kg |
1. The appearance of the product is subject to the actual product. Technical parameters and models are subject to change without prior notice. If there is any act of theft or copying, legal responsibility will be pursued.
2. To learn more about Huatian products, please enter the product center. Service Hotline: 400-8855-448
Product FeaturesProduct Characteristics
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1. The transformer winding deformation tester adopts high-speed and highly integrated microprocessors for data acquisition and control.
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2. USB interface for communication between laptop and instrument
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3. Wireless Bluetooth interface for communication between laptop and instrument
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4. The hardware core adopts DDS dedicated digital high-speed scanning 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 circuit through testing
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5. High resolution dB measurement, dual channel 16 bit A/D (on-site testing shows significant output changes by changing the tap changer)
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6. The signal output amplitude can be adjusted by software, with a maximum peak amplitude of 10V
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7. The computer generates electronic documents (Word) of the detection results
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8. Selecting precision and high stability components, conducting repeated tests on the same phase, with a measurement repetition rate of over 99.5%
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9. Finished circuit board with special surface treatment, resistant to water and harmful gas pollution
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10. The transformer winding deformation tester produced by our company has dual measurement system functions of linear sweep frequency measurement and segmented sweep frequency measurement, and is compatible with the measurement modes of two current domestic technology schools
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11. The amplitude frequency characteristics comply with the technical specifications of the national amplitude frequency characteristic tester. The horizontal axis (frequency) has two types of linear and logarithmic divisions, so the printed curve can be either a linear or logarithmic division curve, and users can choose according to their actual situation
Product videoProduct Video
Product AtlasProduct Picture
Product Attachment Diagram
Host packaging box
host
Bluetooth module
Test cable
Test line clamp
USB communication cable
power line
ground wire
Software CD
fuse
Instruction manual, inspection report, certificate of conformity
Product detail diagram
complete set
host
Front panel
switch
Back panel
Bluetooth receiving antenna
USB interface
Wiring hole
Power cord interface
Test line clamp
Test cable interface
Test cable interface
Test line clamp
Production process diagram
On site production drawing 1
On site production drawing 2
On site production drawing 3
On site production drawing 4
product certificateProduct Certificate
Our company's products are strictly produced in accordance with international and national standards and industry regulations. They have passed the testing of national, provincial, and municipal power research institutes, measurement centers, and authoritative power departments, and have fully passed the ISO9001 international quality management system certification, the People's Republic of China manufacturing measuring instrument license, GB/T19001-2016 quality management system requirements, GB/T24001-2016 environmental management system requirements, and GB/T45001-2020 occupational health and safety management system requirements.