Buchholz Relay
Single Phase Buchholz Relay
Three Phase Buchholz Relay
Buchholz relay in a transformer is an oil container housing the connecting pipe from the main tank to the conservator tank. It has mainly two elements. The upper element consists of a float. The float is attached to a hinge in such a way that it can move up and down depending upon the oil level in the Buchholz relay Container.
