Prd pressure relief device is a device which is used for avoiding high oil pressure builds up inside the transformer during fault conditions.
Pressure relief device in transformer.
An internal fault in an oil filled transformer is usually accompanied by overpressure in the transformer tank.
The simplest form of pressure relief device is the widely used frangible disk.
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.
Qualitrol 201 202 205 small pressure relief device.
Pressure relief device for power transformers.
If the pressure cannot be externally discharged there is a danger that the transformer could explode and potentially cause harm and damage.
Mechanical over pressure protection device provides pressure relief on transformers during over pressure conditions automatically learn more.
The prd allows rapid release of excessive pressure that may be generated in the event of a serious fault.
It is fitted on the top of the main tank.
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.