Advantages of SFRA Analyzer-Huazheng Electric

       l The frequency accuracy is very high, with an accuracy of 0.001%. (Other manufacturers are mostly 0.01% or 0.005%.)
　　l Sampling frequency per channel: 100Msps. (Other domestic manufacturers are mostly 20Msps, and imported instruments are 100MSPS.)
　　l Output voltage: Vpp-25V, automatically adjusted during testing. (Other manufacturers mostly use the 10V or 20V constant voltage method, and there is no automatic adjustment during the test, which affects the accuracy.)
　　l The quantization accuracy of the acquisition channel: 18 bits.(Other manufacturers usually have 14 digits.)
　　l After connecting the test line,then user can start the test. (Products on the market generally need to be preheated for more than 10 minutes)
　　l Sweep frequency mode: linear or logarithmic, sweep frequency and number of points can be set arbitrarily.
　　l 9 curves can be loaded at the same time, the relevant parameters of each curve are automatically calculated, the deformation of the winding is automatically diagnosed, and the reference conclusion of the diagnosis is given. (Other manufacturers generally only load 6 curves.)
　　l The instrument automatically discharges the test product. (Most manufacturers do not have this function. If testing, the transformer must be discharged. Our instrument will automatically discharge the transformer as soon as it is connected and turned on.)
　　l The instrument has an oscilloscope function, which can display the waveform, peak-to-peak value and fitted sine wave waveform of the excitation signal and response signal in real time. (An oscilloscope is built inside the instrument. This function is very useful. It displays the real-time curve and always shows the test status! At present, we have not found that other manufacturers at home and abroad have this function.)
　　l The frequency response method adopts digital frequency synthesis, and the frequency stability is higher.
　　l Use 5000V voltage isolation to fully protect the safety of the test computer (most manufacturers do not have this function).
　　l Internal process design of the instrument: All are modular potting, which overturns the traditional manual welding method of the instrument. The failure rate is greatly reduced, and the mass production capacity of the factory is also improved.
　　l It is equipped with a USB communication interface to realize plug and play.
　　l Suitable for testing transformers of any size and capacity, and can guarantee accuracy.
　　l Using the database to save the test data, the management of the test data is simple and convenient.
　　l The software management function is powerful, fully considering the needs of on-site use, the measurement data is automatically saved, and automatically exported to generate a Word version test report (corresponding Office software needs to be installed) or a JPG picture report, which is convenient for users to produce test reports.
　　l The software has a high degree of intelligence. After the input and output signals are connected, you only need to press a key to complete the measurement.
　　l The software interface is simple and intuitive, with menus such as analysis, storage, report export, and printing. Only when the current step is completed, the next step will automatically pop up, which is more convenient.
　　Paremeter
　　Our product
　　Domestic and foreign products
　　Frequency accuracy
　　0.001%
　　0.01% or 0.005%
　　Sampling accuracy
　　100MSPS
　　20MSPS
　　Sinle phase test speed
　　Within 1-2 minutes
　　Mostly 5 minutes
　　Output voltage
　　Vpp-25V，Automatic adjustment during test
　　Other manufacturers mostly use the 10V or 20V constant voltage method, and there is no automatic adjustment during the test, which affects the accuracy.
　　Acquisition channel quantization accuracy
　　18 bits
　　Mostly 14 bits
　　Load curve
　　9 curves
　　6 curves
　　With oscilloscope function
　　The waveform, peak-to-peak value and fitted sine wave waveform of the excitation signal and response signal can be displayed in real time. (An oscilloscope is built inside the instrument. This function is very useful. It displays the real-time curve and the test status from time to time!)
　　At present, we have not found that other domestic and foreign manufacturers have this function
　　Internal process design
　　All are modular potting, subverting the traditional manual welding method of instruments
　　Traditional manual welding method
　　Communication Interface
　　USB,Plug and play in real-time
　　USB；Or other serial ports, sometimes receiving interference information