Power Transformer Sweep Frequency Response Analyzer (SFRA)

The transformer winding deformation tester is used for power transformer with voltage grade of 6kV and above and other transformers with special purpose. The power transformer is inevitably vulnerable to impulse of various fault short-circuit current or physical collision in the process of operation and transportation and the transformer windings may lose stability under the powerful electro-dynamic force exerted by such short-circuit current, which could result in permanent deformations such as local distortion, swell or dislocation and will severely affect safe operation of the transformer.

1.Sweep Frequency Response Analyzer (SFRA) Main Technical Characteristics

l Characteristics of transformer windings are measured with frequency sweep method. Deformations of windings such as distortion, swell or displacement of 6kV and above transformer are measured by detecting amplitude-frequency response characteristics of each winding, not requiring lifting of transformer enclosure or disintegration.

l Quick measuring, measuring of a single winding is within 2 minutes.

l High frequency accuracy, higher than 0.001%.

l Digital frequency synthesis, with higher frequency stability.

l 5000V voltage isolation fully protects safety of the testing computer.

l Able to load 9 curves at the same time and automatically calculate parameters of each curve and diagnose winding deformations to provide the reference diagnosis conclusion.

l Analysis software has powerful functions and software and hardware indicators satisfy national standard DL/T911-2004.

l Software management is humanized with high degree of intelligence. You only need to click a key to complete all measurements after setting of parameters.

2.Sweep Frequency Response Analyzer (SFRA) Main Technical Indicators

l Measuring speed: 1 min- 2 min for single-phase winding

l Output voltage: Vpp-25V, adjusting automatically in test

l Output impedance: 50Ω

l Input impedance: 1MΩ (the response channel is built with 50Ω matching resistance)

l Frequency scan scope: 100Hz-2MHz (10Hz-2MHz, optional)

l Frequency accuracy: 0.001%

l Frequency scan manner: linear or logarithmic, frequency sacn interval and number of sweep points are freely settable

l Curve display: amplitude-frequency curve (phase-frequency curve, optional)

l Width of measuring dynamic range: -100dB~20dB

l Supply voltage: AC100-240V 50/60Hz (use DC12V Adapater recommend)

Sweep Frequency Response Analyzer Tester Maintenance

The section provides basic maintenance data. Please do not try to disintegrate, modify and repair the transformer winding deformation tester.

1 Basic Maintenance

Regularly scrub surfaces of the tester and its accessories with a clean cloth.

Put the tester at a clean place with low humidity and protect it against entry of dirt and dust. Put the tester into its packing case when not used and keep the packing case level.

2 Senior Maintenance

To be proceeded by professional technicians of the Company.

Sweep Frequency Response Analyzer FAQ

Q: 1. English version is available?

A: Yes

Q: 2. What is the lead time for delivery?

A:7-15 workdays according to your specific requirement

Q: 3. Do you have any MOQ limit?

A: 1pc

Q: 4. what express do you often use?

A: DHL, UPS, FedEx,etc.Any method you can choose!

Q: 5. What's your acceptable payment term?

A: Our usually payment term is T/T, L/C,Paypal, etc.

Q: 6.Can you make OEM service?
A: Yeah,we can!

Certifications

Exhibition

We have attended Power-gen Exhibition in South Africa on July 19-21, 2016.

ａnd the MEE Exhibition in Dubai on 1st to 3rd March 2016. And they are very successful. The follow is the photos that we attended the Power-gen Exhibition and the MEE Exhibition.

Welcome

Sincerely welcome to visit our company.

Company Information

HuaZheng Electric Manufacturing (Baoding) Co.,Ltd is founded in 2008,the supplier of the State Grid in China.It means we are the supplier of the Chinese Government.And our products spread throughout the whole China.

Close to Tianjin port, the transportation is convenient. our customers come from different countries like America, England, Bulgaria, Brazil, Chile, Malysia, Vietnam and so on.

Our main products are Insulation Oil Tester, Cable Fault Locator, Power Quality Analyzer, High Voltage Generator, High Voltage Capacitor, Testing Transformer and so on.

What's more, gurantee 1 year,life long maintance .Products through the CE, ISO, IEC certification, quality and reliable, factory price.