SFRA Transformer Winding Deformation Sweep Frequency Response Analyzer

It is a powerful and sensitive device to evaluate the core, winding and clamping structures of power transformers, by measuring their electrical transfer functions over a wide frequency range.

SFRA Transformer Winding Deformation Sweep Frequency Response Analyzer

SFRA Transformer Winding Deformation Sweep Frequency Response Analyzer 07.jpg

Introduction:

Normally, the structure and reference of transformer is fixed after being made, therefor, the frequency response of each winding will be almost the same. However, under some special conditions, such as cut off between circles or phases during test, cut off or winding moved during running, winding moved in transportation, these conditions may change the structure of transformer , then the frequency response may be changed, we could detect the deformation according to the frequency response curve.

Our company has designed the winding deformation tester base on the idea and the advanced technique. It could draw the frequency response curve accurately. Then we compare the curves horizontally or vertically to detect the deformation of the transformer.

It is a powerful and sensitive method to evaluate the core, winding and clamping structures of power transformers, by measuring their electrical transfer functions over a wide frequency range.

 

Features:

Adopts advanced technical of DDS;

Adopts high speed and advanced microprocessor;

Adopts double channels of AD chip of 16 bits;

With seven inch LCD touch screen;

With build-in thermal printer;

With PC software, with it we can operate, analyze data, upload data and generate word document;

Can store 40 groups of data;

You can use USB2.0 to connect with the device;

 

Specifications:

Linear sweep

10HZ-1MHZ  interval  0.5KHZ  2001 dots

10HZ-1MHZ  interval  0.25KHZ  4001 dots(PC available)

100HZ-2MHZ  interval  0.25KHZ  4001 dots (PC available)

Initial frequency, interval and scan dots can be set (PC available)

Section sweep

10HZ-20HZ      interval  1HZ       11 dots

20HZ-100HZ          interval  2HZ       40 dots

100HZ -1KHZ          interval  3HZ     300 dots

1KHZ-10KHZ        interval  20KHZ    450 dots

10KHZ –100KHZ      interval  0.3KHZ    300 dots

100KHZ – 1000KHZ     interval  1KHZ     900 dots

Section sweep: (conform to IEC60076-18:2012)

20HZ-100HZ          interval  2HZ       40 dots

100HZ -1KHZ          interval  2HZ     450 dots

1KHZ-10KHZ          interval  20HZ    450 dots

10KHZ –100KHZ       interval  0.2KHZ    450 dots

100KHZ – 1000KHZ     interval  2.5KHZ     360 dots

1000KHZ – 2000KHZ     interval  4KHZ     250 dots

Test range

(-100dB) - (+20dB)

Test accuracy

(-40dB) - (+20dB)0.2dB

(-60dB) - (-40dB)0.5dB

(-80dB) - (-60dB)1.0dB

Frequency accuracy

<0.01%

Signal input impedance

>1M Ω

Signal output impedance

50 Ω

In-phase test repetition rate

99.5%

Dimension

31cm*15cm*5cm

Net weight

4kg


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