Device and method for monitoring dissolved gas in oil of oil-filled equipment based on compound optics
A technology of dissolved gas in oil and oil-filled equipment, which is applied in measuring devices, color/spectral characteristic measurement, and material analysis through optical means, and can solve problems such as unfavorable distributed layout and large volume of optical absorption chambers
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Embodiment 1
[0039] Embodiment 1, as attached figure 1 , as shown, this embodiment discloses a monitoring device for dissolved gas in oil of oil-filled equipment based on composite optics, including a light source emitting unit, a sensing unit, and an acquisition and analysis unit;
[0040] The light source emitting unit generates laser signals of different wavelengths, performs multiplexing control on the laser signals, and outputs the laser signals to the sensing unit in sequence;
[0041]The sensing unit includes a plurality of attenuated total reflection probe arrays, and the attenuated total reflection probe array is provided with reference insulating oil, and each attenuated total reflection probe array is respectively arranged at the hole of the oil-filled equipment, and is in contact with the insulating oil of the test sample. Contact, where the holes include the sampling port of the oil-filled equipment and the blind hole of the non-electrical protection device; the attenuated tot...
Embodiment 2
[0047] Embodiment 2, as attached figure 2 , 3 As shown, this embodiment discloses a monitoring device for dissolved gas in oil of oil-filled equipment based on compound optics, wherein the attenuated total reflection probe array further includes a cylindrical fixed base 1, at least two measurement attenuated total reflection probes 2 and at least Two reference attenuated total reflection probes 3, at least two measurement attenuated total reflection probes 2 and at least two reference attenuated total reflection probes 3 are all arranged on the cylindrical fixed base 1, at least two measurement attenuated total reflection probes 2 and at least two The two reference attenuated total reflection probes 3 are both connected with pigtails 4; the measurement attenuated total reflection probe 2 performs multiple total reflections on the laser signal, returns and outputs a laser signal that is absorbed and attenuated by the insulating oil of the pilot product of the oil-filled equipm...
Embodiment 3
[0049] Embodiment 3, as attached Figure 4 As shown, this embodiment discloses a device for monitoring dissolved gas in oil of oil-filled equipment based on composite optics, wherein the attenuated total reflection probe 2 further includes a columnar synthetic quartz crystal base 5, and one end of the synthetic quartz crystal base 5 is set There is a ZnSe crystal thin film 6, and the other end of the synthetic quartz crystal base 5 is provided with an incident interface 7 and a reflection interface 8; the incident interface 7 acquires a laser signal, and the laser signal is totally reflected by the ZnSe crystal thin film 6 multiple times, and the return path is oil-filled equipment The insulating oil of the pilot product absorbs the attenuated laser signal, and the reflection interface 8 outputs the laser signal.
[0050] In the above technical scheme, the incident interface 7 and the reflection interface 8 are connected with pigtails 4; the ZnSe crystal thin film 6 is arrange...
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Abstract
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