Sweep Frequency Response Power Transformer Winding Deformation Diagnostic Instrument

Basic Info

Model NO.	SFRA
Test Mode	Automatic
Operation Mode	Through Touch Screen
Data Analysis	Through The Software on Sfra Analyzer or PC
Test Objects	Finished Transformer, Transformer Core, Winding...
Adopted Technology	Dds
Linear Sweep Frequency Range	10Hz to 2MHz
Dimension	31cm*15cm*5cm
Net Weight	4kg
Gross Weight After Packing	22kg
Delivery Lead Time	7 Days
Shipping Method	by Express
Trade Term	EXW, Fob, DDU, CNF, CIF, etc.
OEM Service	Model, Item Name, Company Name Can Be Changed
Language	English
Transport Package	Packed in One Plywood Case
Specification	31cm*15cm*5cm, 4kg
Trademark	Delta
Origin	China Mainland
HS Code	9031809090
Production Capacity	100 Sets / Month

Packaging & Delivery

Package size per unit product 52.00cm * 38.00cm * 45.00cm Gross weight per unit product 22.000kg

Product Description

SFRA Sweep Frequency Response Power Transformer Winding Deformation Diagnostic Instrument

Sweep Frequency Response Analysis (SFRA) is a powerful and sensitive method for evaluating the mechanical integrity of core, windings and clamping structures within power transformers.

Its basis is the measurement of the transformers' electrical transfer functions over a wide frequency range. The goal of SFRA is to test if physical displacements in the active part of the transformer have occurred due to aging or after a particular event such as short circuit fault and transportation.

Our SFRA Three Phase Power Transformer Sweep Frequency Response Analyzer can draw the frequency response curve accurately and then comparing 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.

Product Parameters

Item Name	SFRA Sweep Frequency Response Power Transformer Winding Deformation Diagnostic Instrument
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 & weight	31cm*15cm*5cm, 4kg
Packing dimension & weight	52cm*38cm*45cm, 22kg

FeaturesAdopts 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;The whole set of SFRA includes:

No.	Item Name	Qty.
1	SFRA Sweep Frequency Response Diagnostic Instrument	1 pc
2	Power cable	1 pc
3	Test cable	1 pc
4	Accessory bag	1 pc
5	USB cable	1 pc
6	Software (CD)	1 pc
7	Fuse 0.5A	3 pcs
8	Print paper	2 pcs
9	User manual	2 pcs

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

Can store data in the SFRA Analyzer;

You can use USB2.0 to connect with the device to upload and analyze the datas;
Following is PC software screen: