Transfomer Accessories

Buchholz Relays The construction of Buchholz relay below is generally as per Indian standards and conditions. However the basic principal and working remain the same.  What is a Buchholz Relay? The Buchholz Relay is one of the most essential protective devices to protect equipment's such as Transformer, Capacitors, On load Tap Changers etc. The Buchholz Relay detects abnormal working of the components inside the equipment, and consequently minimizes the spread of any damage to the equipment's active part by disconnecting faulty apparatus before large scale damage is caused by a fault to the apparatus or to other connected apparatus. Construction of the Buchholz Relay The relay comprises mainly of an oil-tight housing, which contains the alarm and tripping devices consisting of two buckets hinged on a frame, one in the upper part and one, fitted with a flap, in the lower part. The flanges on the body permit an easy connection of the relay to the tu