| Customization: | Available |
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| After-sales Service: | Online |
| Warranty: | 1 Year |
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KGRB-II Transformer Winding Deformation Tester Sfra Impedance Tester Sweep Frequency Response Analyzer
Product Introduction
KGRB-II transformer winding deformation tester is used to test 6kV and above voltage grade power transformers and other special purpose transformers, power transformers in the operation or transportation process will inevitably suffer from a variety of fault short-circuit current impact or physical impact, in the short-circuit current generated by the powerful electrical force, the transformer winding may lose stability, Lead to local distortion, bulging or displacement and other permanent deformation phenomenon, which will seriously affect the safe operation of the transformer.
The transformer winding deformation tester mainly detects the amplitude-frequency response characteristics of each winding of the transformer, and compares the detection results longitudinally-or transversal-to determine the winding deformation that may occur in the transformer according to the degree of change in the amplitude-frequency response characteristics.
KGRB-II Transformer Winding Deformation Tester Sfra Impedance Tester Sweep Frequency Response Analyzer
Product Characteristics
1, KGRB-II transformer winding deformation tester contains two methods to measure and diagnose the winding of large and medium-sized transformers, the first is sweep frequency method, the second is low voltage impedance method, which is the first in the industry.
2. In the test, only the connecting bus bar needs to be removed, and all tests will be completed without lifting and disassembling the transformer.
3, the instrument adopts split structure, the test host and the main computer using USB or wireless Ethernet connection, plug and play.
4. All connectors are fault-tolerant, and on-site wiring is safe and simple.
5, the instrument is highly intelligent, easy to use, the instrument is designed with adaptive filters, with automatic range adjustment, automatic sampling frequency adjustment and other functions.
6, the instrument uses high-speed, high-precision AD converter, so that the instrument test accuracy is high, test stability, good repeatability, the basic measurement accuracy is better than 0.1%.
7, equipped with expert diagnosis system, can automatically diagnose the state of the transformer winding.
8, the analysis software is powerful, software and hardware indicators meet the national standard DL/T911-2004, DL/TXXX-2007.
KGRB-II Transformer Winding Deformation Tester Sfra Impedance Tester Sweep Frequency Response Analyzer
Product Parameters
1, KGRB-II transformer winding deformation tester sweep frequency measurement part of the main technical indicators
1) Test host and PC interface: USB interface.
2) Excitation signal source: the instrument comes with a standard sine wave excitation signal, the signal output amplitude can be adjusted by software, the maximum amplitude of ±10V, the signal output impedance is 50Ω.
3) Two high-speed parallel AD conversion channels: a maximum sampling rate of 20Msps per channel
4) Acquisition channel quantization accuracy: 12 bits
5) The maximum static error of the acquisition channel: 0.5%
6) Acquisition channel input impedance: 1MΩ
7) Sweep frequency measurement range: 1K-2MHz
8) Scanning mode: linear or logarithmic distribution of scanning frequency measurement
9) Scanning frequency accuracy: the frequency accuracy of the signal source output sinusoidal signal is not more than 0.01%
10) Sweep frequency measurement frequency: 1K-2MHz, the maximum measurement point is 3000 points
11) Use the original Vittal chassis
12) Comply with the national power industry standard: DL/T911-2004
2, KGRB-II tester low voltage impedance measurement part of the main technical indicators
1) Voltage measurement technical indicators:
a) Input voltage measurement: Measuring range: 25V-500V (direct measurement), AC240V or AC400V is usually used in impedance test b) Maximum voltage: 600V c) Basic accuracy: 0.1% d) External PT ratio: 1 ~ 10000
2) Current measurement index:
a) Input current measurement: Measuring range: 0.5A-50A (direct measurement) b) Maximum voltage: 50A c) Basic accuracy: 0.1% d) External CT ratio: 1 ~ 10000 e) Impedance measurement index: f) Impedance test range: 0 ~ 100% g) impedance test accuracy: 0.1%
3) Power measurement indicators:
a) Power measurement: Measuring range: 15W-10kW b) Active power: 0.2% (power factor >0.5) 0.5% (power factor >0.01) c) reactive power accuracy: 0.5% d) Apparent power accuracy: 0.5%
4) Power factor index:
a) Measuring range: 0.000 - ±1.000 b) Capacitive load: + that is, leading power factor c) Inductive load: - that is, lagging power factor d) basic accuracy: 0.5% e) In line with the national power industry standard: DL/TXXX-2004
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