• Sun Enclave ,Office No.13-14-15, Near Suncity Paradise, Manjalpur, Vadodara- 390020

SFRA Measurement

Doble M5400

Sweep Frequency Response Analyzer

Motor current acts as an excellent transducer for detecting faults in the motor. Spectrum analysis of the motor’s current & voltage signals can hence detect various faults without disturbing its operation. Typical faults detectable by this are Rotor bar damage, misalignment/unbalance, foundation looseness, static & dynamic eccentricity, core damage, loose wedges, inter-turn shorts, defective bearings.

Electrical signature analysis is the procedure of acquiring the motor current and voltage signals, performing signal conditioning and analyzing the derived signals to identify the various faults. The three phase signals are collected either directly or through CT.

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Megger-FRAX-101

Sweep Frequency Response Analysis (SFRA)

Sweep Frequency Response Analysis (SFRA) is a powerful and sensitive method to evaluate the mechanical integrity& electrical condition of core, windings and clamping structures within power transformers by measuring their electrical transfer functions over a wide frequency range. SFRA analysis can detect incipient fault in transformers like:

  • winding deformation – axial & radial, like hoop buckling, tilting, spiraling
  • displacements between high and low voltage windings
  • partial winding collapse
  • shorted or open turns
  • faulty grounding of core or screens
  • core movement & shorting of lamination
  • broken clamping structures

Omicron FR Analyzer

Sweep Frequency Response Analyzer

Sweep Frequency Response Analysis (SFRA) is a powerful and sensitive method to evaluate the mechanical integrity& electrical condition of core, windings and clamping structures within power transformers by measuring their electrical transfer functions over a wide frequency range. SFRA analysis can detect incipient fault in transformers like:

  • winding deformation – axial & radial, like hoop buckling, tilting, spiraling
  • displacements between high and low voltage windings
  • partial winding collapse
  • shorted or open turns
  • faulty grounding of core or screens
  • core movement & shorting of lamination
  • broken clamping structures
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Omicron FRANEO

Sweep Frequency Response Analysis (SFRA)

Sweep Frequency Response Analysis (SFRA) is a powerful and sensitive method to evaluate the mechanical integrity& electrical condition of core, windings and clamping structures within power transformers by measuring their electrical transfer functions over a wide frequency range. SFRA analysis can detect incipient fault in transformers like:

  • winding deformation – axial & radial, like hoop buckling, tilting, spiraling
  • displacements between high and low voltage windings
  • partial winding collapse
  • shorted or open turns
  • faulty grounding of core or screens
  • core movement & shorting of lamination
  • broken clamping structures