Automatic Sweep Frequency Response Analysis Instrument (SFRA)

• Customization: Available
• After-sales Service: Response in 12 Hours
• Warranty: 12 Months
• Model NO.: SFRA-II
• Test Standard: IEC60076-18 and IEC60076-5
• AC Impedance: 0~999.999Ω 0.2%±2 Digits
• AC Voltage: 0~600V 0.2%±2 Digits
• AC Current: 0~120A 0.2%±2 Digits
• Test Method 1: Sweep Frequency Response Analysis
• Test Method 2: Low-Voltage Short-Circuit Impedance
• Test Range: (-100dB) - (+20dB)
• Signal Input Impedance: > 1mΩ
• Signal Output Impedance: 50 Ω
• in-Phase Test Repetition Rate: 99.5%
• Display: LCD
• Application: Transformer Testing
• Printer: Inbuilt
• Power Supply: AC220V±10%,45~65Hz
• Weight: 10 Kg
• Transport Package: Plywood Case
• Specification: Small
• Trademark: AI
• Origin: China
• HS Code: 9031809090
• Production Capacity: 50 Sets/Month

Product Description

I. Introduction:

Our company has designed the frequency response analyzer SFRA-II, which can use two methods to detect the deformation of the transformer at the same time. One is the sweep frequency response analysis method, the other is low-voltage short-circuit impedance method. Using two methods can effectively reduce incorrect judgments.

SFRA-II Transformer Winding Deformation Tester follows the national power industry standards DL / T911-2004 and DLT 1093-2008, and can be used for IEC60076-18-2012 and IEC60076-5-2006.

 

II.Main Features

1. The Sweep Frequency Response Analysis Instrument uses the advanced technical of DDS;
2. The SFRA uses the high speed and advanced microprocessor to design;
3. The Transformer Winding Deformation Tester  adopts AD chip of 16 bits;
4. The Sweep Frequency Response Analyser adopts seven inch LCD touch screen of which the brightness can be adjusted;
5. With thermal printer of which the print thick can be adjusted;
6. The The Sweep Frequency Response Analysis Instrument can store 120 groups of FRA data, 50 groups of SCI data and 30 groups of SCI data, which could be read to current screen or upload to the PC;
7. SPRA has PC software,by which we can upload data ,test, analyze data, print data, or create word document;
8. The Sweep Frequency Response Analyser uses USB2.0 to connect to the device.

 

III. Technical Specifications:

Sweep frequency response analysis

Two different sweep modes: Linear sweep, Section sweep
Linear sweep	10HZ-1MHZ interval 0.5KHZ 2000 dots 100HZ-2MHZ interval 0.5KHZ 2000 dots 10HZ-1MHZ interval 0.25KHZ 4000 dots(PC available) 100KHZ-2MHZ interval 0.25KHZ 4000 dots(PC available) Frequency,interval,and scan dots can be set(PC available)
Section sweep	10HZ-100HZ interval 1HZ 90 dots 100HZ-1KHZ interval 5HZ 180 dots 1KHZ -10KHZ interval 50HZ 180 dots 10KHZ-100KHZ interval 0.2KHZ 450 dots 100KHZ -300KHZ interval 0.5KHZ 400 dots 300KHZ - 1000KHZ interval 1KHZ 700 dots
Test range	(-100dB) - (+20dB)
Test accuracy	(-80dB) - (+20dB)0.2dB (-100dB) - (-80dB)1.0dB
Frequency accuracy	< 0.01%
Signal input impedance	> 1MΩ
Signal output impedance	50 Ω
In-phase test repetition rate	99.5%

 

Short-circuit impedance and generator rotor AC impedance:

AC impedance	0~999.999Ω 0.2%±2 digits
AC voltage	0~600V 0.2%±2 digits
AC ampere	0~120A 0.2%±2 digits
Active power	cosφ>0.1 0.5%±2 digits cosφ<0.1 1.0%±2 digits Reactive power 0.2%±2 digits
Frequency	45~65HZ 0.1%

 

 

Factory overview

Customer Feedback 

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FAQ

1.What's the delivery time?
About 15 working days.

2.What's your payment terms?
30% paid by T/T in advance,70% paid by by T/T before shipping.

3.What's your guarantee terms?
The warranty of all products is 1 year.During this period,we are responsible for all faults caused by us.And we can supply life-long technical support. 

4.Can you supply training?
We can supply training in our factory and online training for free.If onsite installation and training are required,please pay for tickets,accommodation and salary USD150/Day for every person.