A Method for Monitoring Operation Status of Oil-immersed Transformer Based on the Baffle Angle Characteristic of Gas Relay

A gas relay in the transformer, an important non-electricity protection equipment, only triggers stem leaf spring for serious alarm when baffle rotates to a certain angle, which cannot judge transformer fault event of heavy before running state and development process, this paper puts forward kind based on panel corner monitoring methods. The partial structure is improved, signal extracted by installing Hall sensor back baffle. On basis, develops test stand capable simulating characteristics relays at different energies. Subsequently, angle variation law under energies studied, influence pipe pressure flow rate given. results show that, improved relay, real-time information can reflect internal operating provide effective method condition monitoring.