DEVICE TO MEASURE THE CORROSIVE SULFUR SPECIES FORMATION RATE IN POWER TRANSFORMERS AND A METHOD OF USING THE SAME

摘要

An apparatus for measuring the rate of Cu2S formation in power transformers comprising a sealable transformer vessel and a sealable lid with at least four sealable ports, and an internal apparatus configuration involving a copper metal sheet, a power transformer, a temperature sensor, and a weighing device providing real-time feedback data, whereby these components are submerged in an effective amount of a reactive sulfur-containing transformer oil and sealed. An inert gas atmosphere is provided within the transformer vessel by a gas bubbler. The transformer oil is heated with a heating bath to a reactive temperature for Cu2S production. A method of measuring the rate of Cu2S formation whereby the apparatus is purged with an inert gas, heated to a reactive temperature, examined for Cu2S formation, the Cu2S produced is quantified and the rate of formation of Cu2S is calculated.

主权项

1: An apparatus, comprising:
a transformer vessel with a sealable lid comprising at least four sealable ports, and a flange on both the vessel and the sealable lid; a copper metal sheet held in the vessel with a first holder connected to a first sealable port; a power transformer comprising iron strips and copper windings coated with an insulating dielectric paper, wherein the power transformer is held in the vessel with a second holder connected to a second sealable port; a temperature sensor held in the vessel with a third holder connected to a third sealable port; a gas bubbler fluidly connected to a fourth sealable port and an inert gas source, wherein the gas bubbler maintains an inert atmosphere and constant pressure within the transformer vessel; a heating bath that heats the transformer vessel; and wherein the apparatus enables measurement of an amount of reactive sulfur species in a sulfur containing insulating transformer oil and a rate of formation of Cu2S deposits.