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GAOTek Three Phase Power Quality Analyser

GAOTek High Precision SFRA Analyser

The GAOTek SFRA analyzer is a high-precision device used to detect internal faults in power transformers ranging from 63 kV to 500 kV.

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SKU: GAOTek-PSTNA-194 Category:
Description

Description

Overview

The GAOTek SFRA analyzer is a high-precision device used to detect internal faults in power transformers ranging from 63 kV to 500 kV. It analyzes changes in winding parameters using frequency response analysis (FRA) to assess the transformer’s condition. By quantifying these changes in the frequency domain, the analyzer can determine the extent of internal winding damage, helping decide if the transformer requires maintenance or repair. It offers portability, ease of use, and advanced analysis capabilities for transformer assessment. 

 

Features

  • High-speed, high-integration microprocessor to sample and control 
  • USB to connect the notebook PC and device 
  • Communication wireless Bluetooth interface between the laptop and instruments 
  • Hardware cassette mechanism use DDS for accurate breakdown detection 
  • High-speed, dual-channel, 16-bit A/D sampling for accurate readings 
  • Software adjusts output signal range to a maximum peak amplitude ±10 V 
  • The computer auto-generates test results into a Word document 
  • Uses precise, stable components for high repeatability in testing 
  • Circuit boards finished with anti-water pollution, gas treatment 
  • The device offers two measurement systems: linear and sectional scan 
  • Amplitude-frequency characteristics comply with the national technical specifications 
  • Automatically generating Word document 
  • convenient for customers to save and print 

 

Technical Specifications

Linear Scan Distribution Scan measurement range: (1 kHz) to (2 MHz), 2000 scan frequency point, resolution 1 kHz 
Sectional Scan Measurement Distribution Scan measurement range: (0.5 kHz) to (1 MHz),   

2000 scan frequency point: (0.5 kHz) to (10 kHz), 

 resolution 0.02 kHz； (10 kHz) to (100 kHz), 

 resolution0.2 kHz； (100 kHz) to (500 kHz),  

resolution 1 kHz； (500 kHz) to (1000 kHz),  

resolution 1 kHz 
Amplitude Measurement Range (-100 dB) to (+20 dB) 
Amplitude Measurement Accuracy 0.1 dB 
Scan Frequency Accuracy less than 0.01% 
Signal Input Impedance 1 MΩ 
Signal Output Impedance 50 Ω 
Co-phase Repetitive Rate 99.50% 
Instrument Dimension 11.81 in × 13.39 in × 4.72 in (300 mm × 340 mm × 120 mm) 
Case Dimension 12.20 in × 15.75 in × 12.99 in (310 mm × 400 mm × 330 mm) 
Weight 22.05 lb (10 Kg)