The UHF-50 or UHF-80 are UHF drain valve sensors used for the decoupling of PD signals from the inside of oil-immersed components in power transformers. Versions are available for standard DN 50 and DN 80 drain valves. Leak-free installation of the sensor is done quickly and easily and the PD signals can be analyzed with the HTP-2/UHF PD Detector or PDMS DAQ PD Monitoring System.
Datasheet:
UHF-50 / UHF-80 Features
Easy and leak-free installation on oil-filled transformers and reactors
UHF-50 and UHF-80 versions available for standard DN 50 and DN 80 drain valves
Online installation of the sensor, no power-down necessary
Wide frequency range 100 MHz – 2 GHz
Suitable for temporary measurements as well as permanent installation for continuous on-line monitoring
Performs UHF signal measurements with transformer tank acting as natural shield against external interferences