Furan Analysis
A diagnostic measuring furan compounds in transformer oil to assess cellulose insulation degradation.
Furan analysis measures furan compounds (2-FAL, 2-ACF, etc.) in transformer oil, produced exclusively by thermal degradation of cellulose insulation. Provides direct solid insulation aging indicator.
Unlike DGA detecting multiple faults, furans specifically target solid insulation condition. 2-furfuraldehyde (2-FAL) is the primary marker. Paper degree of polymerization (DP) below 200 indicates brittle insulation.
Valuable for: estimating remaining life, verifying drying effectiveness, trending. Complements DGA.
QDTB recommends combining furan analysis with regular DGA for comprehensive assessment. Our smart O&M includes advanced diagnostics.
Related Products
Related Terms
Dissolved Gas Analysis (DGA)
A diagnostic technique analyzing gases dissolved in transformer oil to detect internal faults before they become critical.
Insulation Class (A/E/B/F/H)
Standardized temperature ratings for transformer insulation materials defining maximum operating temperatures.
Moisture Content
The amount of water in transformer oil and solid insulation, critical for dielectric strength and insulation life.
More Terms Starting with “F”
Faraday Shield
An electrostatic shield between transformer windings blocking capacitive coupling of high-frequency noise.
Frequency (Hz)
The number of AC cycles per second (50 or 60 Hz), determining transformer design parameters.
Fault Current
The extremely high current during a short circuit that transformers must withstand mechanically.
More in “Diagnostics & Maintenance”
Dissolved Gas Analysis (DGA)
A diagnostic technique analyzing gases dissolved in transformer oil to detect internal faults before they become critical.
Moisture Content
The amount of water in transformer oil and solid insulation, critical for dielectric strength and insulation life.
Partial Discharge (PD)
Localized electrical discharges in small insulation regions not bridging electrodes, indicating defects or aging.
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