DOBLE M5400
SFRA unit
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Description
The Sweep Frequency Response Analyzer User Guide explains how to install, configure, and operate Doble’s M5200, M5300, and M5400 Sweep Frequency Response Analyzer instruments.
Sweep Frequency Response Analysis (SFRA) testing is a nonintrusive way to identify mechanical changes inside a transformer. Changes in the internal configuration produce different frequency responses that indicate a range of failure modes. Performed in the field, without teardown or draining of oil, SFRA testing provides accurate and repeatable measurements. The M5200, M5300, and M5400 Sweep Frequency Response Analyzers measure and record the frequency-response characteristics of transformer windings. Each unit consists of a robust molded shell housing a field controller and instrumentation module, an excitation source, and a measurement module.
FEATURES
• Instrument sends excitation signals to transformer and measuresthe returning signals across a broad frequency range
• Provides a frequency response measurement from 10 Hz to 25 MHz
• Measures frequency response at logarithmically spaced intervals of1.2%
• Auto-scales each frequency measurement for an overall dynamicrange of 80 dB with a ±1 dB accuracy
• Highest combination of dynamic range and accuracy available
• Simple, robust test leads that meet IEC standards
Operation: Fully software driven through Doble software.
Weight: 1.1 kg without accessories ≤ 5.5 kg incl. accessories and batteries in carrying case Case material: NORYL, shock -and scratch proof thermoplast
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