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UPM transformer UHF PD online monitoring device
Ultra high frequency electromagnetic wave, UHF partial discharge monitoringmethod accepted by the radiation antenna sensor detect, the insulation strength oftransformer oil baffle structure is relatively high, so the partial discharge in transformer can be very high frequency electromagnetic wave radiation. In the transformer partial discharge measurement, field interference signal frequency band is generally less than 300MHz, the detection of the frequency range of UHFdetection technology for general 500MHz to 1500MHz, which can avoid interferencemaximum, and the UHF sensor placement in the transformer box body, the shielding effect of transformer shell body makes the UHF detection method is superior to the current anti interference ability traditional partial discharge detectionmethod.
The technical parameters of UPM:
1, PD measurement channels: 4 PD measurement channels + 1 noisemeasurement channel
2, UHF sensor bandwidth: 300 MHZ-------2000MHZ
3, communication interface: 100Base network port
4, the internal storage: 16G