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TEST LABS

Frequency Response Analysis (FRA)

R$
69.800,00 - 89.800,00

HVEX ofrece el SFRA (Sweep Frequency Response Analysis), una solución avanzada para el análisis de respuesta en frecuencia de transformadores de potencia, reactores, motores y otros sistemas lineales. El ensayo SFRA es una herramienta esencial en el mantenimiento predictivo, permitiendo la detección temprana de fallas mecánicas y eléctricas que pueden comprometer el rendimiento y la vida útil de los equipos eléctricos. Mediante la aplicación de técnicas en el dominio de la frecuencia, el Frequency Response Analysis realiza barridos precisos en un amplio rango de frecuencias, identificando desplazamientos de bobinados, deformaciones estructurales, cortocircuitos entre espiras, alteraciones en el aislamiento y problemas en los núcleos magnéticos. Con el SFRA HVEX, es posible realizar mediciones como: • Análisis de firma espectral. • Medición de circuito abierto. • Medición de cortocircuito. • Pruebas de resonancia capacitiva e inductiva. • Evaluación de la función de transferencia. El sistema cumple rigurosamente con las principales normas internacionales y nacionales, garantizando la confiabilidad y la repetibilidad de los resultados: • IEEE Std C57.124 • IEEE Std C57.113 • IEEE Std 1434 • IEC 60270 • IEC 60060 • IEEE Std 400 • NBR 5356 La aplicación del análisis de respuesta en frecuencia (SFRA) en transformadores permite reducir riesgos de fallas catastróficas, minimizar costos de mantenimiento correctivo y prolongar la vida útil de los activos críticos. HVEX proporciona tecnología de punta para empresas que buscan la excelencia en el mantenimiento predictivo de transformadores y en la gestión de sus activos de alta tensión.

TENSÃO DE OPERAÇÃO
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Technical Information

Power Supply
127 / 220 V / 60 Hz
Function Generator
Bandwidth: 25 MHz, Output Voltage: 20 mVpp to 5Vpp
Amplifier Power
500 Wrms per channel at 4 Ohms and 290 Wrms per channel at 8 Ohms
Amplifier Input Sensitivity
775 mV
Amplifier Input Impedance
30 kΩ

Precise Analyses of Frequency Response in Linear Systems

Through advanced frequency-domain measurements, such as transfer function (H(f)) and short-circuit impedance, the SFRA test generates a unique spectral "signature" of the transformer's active part. With high sensitivity to identify resonance points and minimal structural variations, comparative analysis of this signature against a reference enables reliable diagnosis of mechanical and electrical faults. The entire process strictly adheres to IEC 60076-18 and IEEE C57.149 standards, serving as an essential tool to optimize predictive maintenance and ensure asset integrity.

HVEX | Precise Analyses of Frequency Response in Linear Systems
HVEX | Benefits and Usability

Benefits and Usability

  • HVEX | Comprehensive Analysis of Linear Systems
    Comprehensive Analysis of Linear Systems

    Enables the evaluation of the behavior of linear systems over a wide range of frequencies, providing a complete view of the performance of these devices

  • HVEX | Compact and Mobile Solution
    Compact and Mobile Solution

    The test system is compacted into a mobile unit, making it easy to transport and conduct measurements in various locations, increasing flexibility and convenience of use

  • HVEX | Advanced Analysis Software
    Advanced Analysis Software

    Allows for parameter configuration, graph visualization, equipment registration, report generation, and data management for storage and analysis of historical data

  • HVEX | Exceptional performance
    Exceptional performance

    It stands out for its versatility, delivering reliable results and exceptional performance, ensuring safety and satisfaction

Exclusive Features

The test system is integrated into a mobile unit, featuring an oscilloscope, amplifier, connection terminals, and a computer with HFRA software. This software enables test parameter configuration, graphical visualization, equipment registration, automatic report generation, and database management for storage and analysis of historical data. With the complete HVEX solution, it is possible to perform comprehensive evaluation of linear system behavior across a wide frequency range, providing relevant information for equipment assessment. The SFRA (Sweep Frequency Response Analyzer) stands out for its compact and mobile solution, allowing data export in .csv format, automatic PDF report generation, and waveform overlay capabilities for different assets. The 50 Vpp version features high immunity to external noise and intense electric fields, specifically designed for applications in substations or transmission lines.

  • HVEX | ImageCompact solution
  • HVEX | ImageVersatile applications
  • HVEX | ImageHigh performance
  • HVEX | ImageReliable results

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