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AJRB-3 Transformer winding deformation tester
Main technical features
The acquisition control adopts high-speed and highly integrated microprocessors.
USB interface for communication between laptop and instrument.
The communication between the laptop and the instrument can use wireless Bluetooth interface or wireless WIFI interface (optional accessory).
The wireless WIFI interface can be conveniently used on tablets and smartphones.
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.
High speed dual channel 16 bit A/D sampling (on-site test changes the tap changer, and the waveform curve shows obvious changes).
The signal output amplitude is adjusted by software, with a maximum peak amplitude of ± 10V.
The computer automatically analyzes and generates electronic documents (Word) based on the detection results.
The instrument 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.
The amplitude frequency characteristics comply with the technical specifications of the national amplitude frequency characteristic tester. The horizontal axis (frequency) has two types of divisions: linear division and logarithmic division, so the printed curve can be a linear division curve or a logarithmic division curve, and users can choose according to their actual needs.
Automatic data analysis system for detection
Horizontal comparison of winding similarity between phases A, B, and C
The analysis result is:
① Good consistency
② Good consistency
③ Poor consistency
④ The consistency is very poor,
Longitudinal comparison of A-A, B-B, C-C: Compare the winding deformation between the original data and the current data in phase
The analysis result is:
① Normal winding
② Mild deformation
③ Moderate deformation
④ Severe deformation
Automatically generate Word electronic documents for saving and printing.
This instrument fully meets the technical requirements of the power standard DL/T911-2004 "Frequency Response Analysis Method for Winding Deformation of Power Transformers".
Main technical parameters
3.1 Scanning Method
Linear scanning distribution
Sweep frequency measurement range: (10Hz) - (10MHz) 40000 sweep frequency points, with resolutions of 0.25kHz, 0.5kHz, and 1kHz.
Segmented sweep frequency measurement distribution
Sweep frequency measurement range: (0.5kHz) - (1MHz), 2000 sweep frequency points;
(0.5kHz)-(10kHz)
(10kHz)-(100kHz)
(100kHz)-(500kHz)
(500kHz)-(1000kHz)
3.2 Other technical parameters
Range of amplitude measurement: (-120dB) to (+20dB)
Amplitude measurement accuracy: 0.1dB
Scanning frequency accuracy: 0.005%
Signal input impedance: 1M Ω
Signal output impedance: 50 Ω
Signal output amplitude: ± 20V
Same phase test repetition rate: 99.9%
Measurement instrument size (length, width, height) 350X300X140 (mm)
Instrument aluminum alloy box size (length, width, height) 390X310X340 (mm)
Overall weight: 13Kg
Operating temperature: -10 ℃ to+40 ℃
Storage temperature: -20 ℃ to+70 ℃
Relative humidity:<90%, non condensing
Sales hotline：13016458318 / 027-85821963/400-0278050
After-sales service：18971110046
Q Q：57286187 / 3305774738
URL：http://www.ajdq.net/
Mail：tech01@ajdq.net
4th Floor, Unit 1, Building 6, Contemporary Electronic Silicon Valley, No. 158 Huanhu Middle Road, Dongxihu District, Wuhan City
