The PTDGA-1003 iDGA is an advanced online dissolved gas monitoring device designed for 24/7 continuous
surveillance of oil-immersed main transformers and reactors. Utilizing a narrow-linewidth semiconductor
laser combined with patented sub-ultrasonic resonance photoacoustic spectroscopy, the device delivers
highly stable, real-time analysis of critical fault-indicative gases. By automating early fault warnings and
replacing traditional manual offline oil chromatography, the PTDGA-1003 significantly reduces Operation &
Maintenance labor costs and eliminates the safety risks associated with manual sampling.
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