The invention relates to the field of
transformer safety technology, and discloses a gas
relay for transformers, which includes a housing, an open cup, a
magnet, a light gas reed contact, a gas plug, a
gas release port, a pull rod device, a roller travel switch, wires, One-way air release valve and
position sensor, the opening cup is movably installed on the top of the inner cavity of the housing, the
magnet is fixedly installed on the right side of the opening cup, the light gas reed contact is movably installed inside the housing and Located at a distance h below the
magnet. Through the setting of the pull rod device, the roller type
limit switch, the wire and the one-way air release valve, the process of lowering the open cup is further distinguished, that is, the gas can be automatically discharged before the light gas
signal is triggered, and the oil level in the gas
relay can be restored. , reduce the number of times the operator is on duty, reduce the labor cost, and avoid the frequent triggering of the light gas
signal at the same time, increase the operator's accurate judgment of the
transformer situation, and improve the
operation safety of the
transformer.