Pressure Relief Device In Transformer

The prd allows rapid release of excessive pressure that may be generated in the event of a serious fault.

Pressure relief device in transformer.

The simplest form of pressure relief device is the widely used frangible disk. Sudden and violent short circuits inside the oil cooled transformer s metal tanks instantly generate an enormous amount of gas which causes a substantial increase in internal pressure. A flashover or short circuit in a liquid filled transformer is usually accompanied by overpressure in the tank due to gas being formed by the decomposition and evaporation of the oil. An internal fault in an oil filled transformer is usually accompanied by overpressure in the transformer tank.

Mechanical over pressure protection device provides pressure relief on transformers during over pressure conditions automatically learn more. Qualitrol 201 202 205 small pressure relief device. The pressure relief device limits the tank overpressure and reduces the risk of tank rupture and uncontrolled oil spill which might also cause a fire. It is fitted on the top of the main tank.

Pressure relief device for power transformers. The surge of oil caused by a heavy internal fault bursts the disk and allows the oil to discharge rapidly.