The Sfra Test Equipment (transformer winding deformation tester) adopts the internal fault frequency response analysis (FRA) method based on the measurement of the characteristic parameters of the internal winding of the transformer, which can make accurate judgments on the internal fault of the transformer.
The Sfra Test Equipment is to quantify the response changes of the internal winding parameters of the transformer in different frequency domains, and determine the internal windings of the transformer according to the magnitude of the change, the amplitude of the frequency response change, the area and the trend of the frequency response change According to the measurement results, it can be judged whether the transformer has been severely damaged and whether it needs to be overhauled.
Our Sfra Test Equipment is composed of a notebook computer and a single-chip microcomputer with a high-precision measurement system.
Please do not start the winding deformation test before the measurement grounding of the transformer is connected correctly.
The terminal of the transformer under test should be fully discharged before the test.
The winding deformation test should be carried out under the premise of unfastening all the leads of the transformer (including overhead wires, enclosed bus bars and cables), and keep these leads as far away from the transformer bushing as possible (the surrounding grounding body and metal suspension should be more than 20cm away from the transformer bushing ), especially the transformer connected to the closed bus.
Main Features
1.Adopt high speed and high integration microprocessor.
2.USB interface for communication with computer
3.Adopt DDS digital high - speed frequency sweep technology
4.High speed dual channel 16 bit A/D sampling
5.The amplitude of signal output cab be adjusted by software, and the maximum peak value is ±10V.
6.The computer can automatically analyze the data and generate test report in word foramt.
7.Built in printer
Hot tags: Transformer Sweep Frequency Response Analyzer, Winding Deformation Tester.
Technical Specificaiton
1.Two different sweep modes: Linear sweep,Section sweep;
Linear sweep:
0.5KHZ-1MHZ interval 0.5KHZ 2000 dots
Section sweep:
50HZ-100HZ interval 2HZ 25 dots
100HZ-1KHZ interval 20HZ 45 dots
1KHZ -10KHZ interval 50HZ 180 dots
10KHZ-100KHZ interval 0.2KHZ 450 dots
100KHZ – 500KHZ interval 0.5KHZ 800 dots
500KHZ – 1000KHZ interval 1KHZ 500 dots
2.Test range:(-100dB) - (+20dB)
3.Test accuracy: 0.1dB;
4.Frequency accuracy:<0.01%
5.Signal input impedance:>1M Ω
6.Signal output impedance:50 Ω
F. A. Q
1. Are you manufacturer or trading company ?
We are ISO certified manufacturer .
2. When can I get price ?
Within 24 hours after get your inquiry .
3. Do you supply OEM?
Yeah, OEM is available .
4. How long it will take for production ?
Usually around 10-15 days .
5. What is your terms of delivery ?
EXW, FOB, CFR, CIF, DDU, etc .
6. What’s your payment terms :
TT , L/C , Paypal, Western union, etc.
7. How much is the shipping cost and time ?
Depend on transporting modes and destination .
8. How about the warranty ?
One year free and lifelong maintenance .
9. Can you afford calibration certificate ?
Yes , we can afford calibration certificate issued by third authoritative institution .
10. Do you have Technical Backup to all customers from different countries ?
Sure, we have rich-experienced engineer service you within 24 hours through phone call , ,or on-line communication to solve your problems . And if if necessary , our engineer can visit your company to afford technical support face to face .
Company profile
Wuhan Goldhome Hipot Electrical Co.,ltd is one of the earliest ISO certified enterprises specially in develop, design and manufacture high-voltage testing equipment in China.
Goldhome hipot main products included AC/DC hipot tester, transformer testing device, CT/PT analyzer , Circuit breaker tester, insulation resistance tester set , earth continuity tester, protection relay tester as well as transformer oil testing equipment.
Goldhome Hipot always stick to conception of "credit is the basis, quality is the first" , provide high quality products and perfect after-sales service for customers at home and abroad.