| Customization: | Available |
|---|---|
| After-sales Service: | Online |
| Warranty: | 1 Year |
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
KDRB-X Short circuit impedance test device/Transformer winding deformation tester
KDRB-X transformer winding deformation tester according to the measurement of transformer internal winding characteristic parameters, using the current developed countries are developing perfect internal fault frequency response analysis (FRA) method, can make an accurate judgment of the transformer internal fault.
KDRB-X transformer winding deformation tester according to the response analysis method developed transformer winding tester, it is suitable for 63kV ~ 500kV power transformer internal structure fault detection.
KDRB-X transformer winding deformation tester is the transformer internal winding parameters in different frequency domain response changes after quantitative processing, according to the size of the change value, frequency response change amplitude, area and frequency response change trend, to determine the change degree of the transformer internal winding, Then, according to the measurement results, it can be determined whether the transformer has been seriously damaged and whether it needs to be overhauled.
KDRB-X transformer winding deformation tester is composed of a high precision measurement system by a laptop computer and a single chip microcomputer. It is compact in structure, simple in operation, and has a relatively complete test and analysis function. It can be operated by itself according to the operating instructions or after short-term training.
KDRB-X Short circuit impedance test device/Transformer winding deformation tester
Technical Features:
1. High speed and high integration microprocessor is used for acquisition and control.
2. The instrument comes with an industrial computer for independent use, without a laptop, but also through the USB interface and laptop connection.
3. The instrument will automatically analyze and judge the test results and generate electronic documents (Word) for saving and printing.
4. The instrument also meets the technical conditions of power standard DL/T911-2016 "Frequency Response Analysis Method of Power Transformer Winding Deformation" and DL/T1093-2008 "Guidelines for the Detection and Judgment of Power Transformer Winding Deformation by reactance Method".
5. High-speed dual-channel 16-bit A/D sampling (the field test changes the tap switch, and the waveform curve changes clearly).
6. The frequency response method hardware movement adopts DDS special digital high-speed frequency sweep technology (USA), through the test can accurately diagnose the winding distortion, swelling, shift, tilt, inter-turn short circuit deformation and phase contact short circuit and other faults.
7. Frequency response method has the function of linear sweep frequency measurement and segmental sweep frequency measurement, compatible with the current domestic two technical schools of measurement mode.
8. The amplitude and frequency characteristics of the frequency response method are in line with the national technical indicators of the amplitude and frequency characteristics tester. Abscissa (frequency) has two kinds of linear and logarithmic indexing, so the printed curve can be linear indexing curve or logarithmic indexing curve, users can choose according to the actual needs.
9. The impedance method adopts the three-phase wiring and single-phase measurement method. Only the low-voltage side is short connected, and the high-voltage side is connected to the three-phase at one time.
10. The impedance method can measure the voltage, current and frequency synchronously, and display the real-time waveform of the test
11. Impedance method can use built-in 220V power supply or external power supply.
KDRB-X Short circuit impedance test device/Transformer winding deformation tester
Frequency response method
|
Mode of scanning |
|
|
1. Linear scan distribution |
|
|
Sweep frequency measurement range |
(10Hz)-(10MHz)40000 sweep frequency points, resolution of 0.25kHz, 0.5kHz and 1kHz. |
|
Segmental sweep frequency measurement distribution |
|
|
Sweep frequency measurement range |
(0.5kHz)-(1MHz), 2000 sweep frequency points; (0.5 kHz) - (10 kHz) (10kHz)-(100kHz) (100kHz)-(500kHz) (500kHz)-(1000kHz) |
Other technical parameters
|
Amplitude measurement range |
(-120dB) to (+20dB) |
|
Amplitude measurement accuracy |
0.1dB |
|
Scanning frequency accuracy |
0.01% |
|
Signal input impedance |
1MΩ |
|
Signal output impedance |
50Ω |
|
Signal output amplitude |
±20V |
|
Repetition rate of in-phase test |
99.9% |
Impedance method
|
Measuring accuracy |
Voltage: 0.2% Current: 0.2% |
|
Impedance range |
0 ~ 100% |
|
Voltage measurement range |
AC 25V ~ 500V |
|
Current measurement range |
AC 0.1A ~ 10A |
|
Working humidity |
0 ~ 80% |
|
Repetition rate of in-phase test |
99.9% |
){kind=link}