Process For Providing A Contamination-Reducing Component To An Electrical Apparatus

The process for determining the adsorption capacity of a contamination-reducing component in an electrical apparatus, said electrical apparatuses comprising a housing enclosing an insulating space and an electrical component arranged in the insulating space, said insulating space comprising an insulation medium which comprises or essentially consists of carbon dioxide, wherein said process comprises the steps of:

• A) providing to the insulating space a contamination-reducing component, with at least one kind of adsorbate adsorbed thereto, said at least one kind of adsorbate comprising carbon dioxide,
• B) inducing an at least partial release of adsorbate, from the contamination-reducing component,
• B′) determining the total amount of adsorbate released in step B),
• C) determining the amount of carbon dioxide released from the contamination-reducing component based on the determination of the total amount of adsorbate released, and
• D) determining from the amount determined in step C) the amount of the remaining adsorbates in the contamination-reducing component and thus the adsorption capacity of the contamination-reducing component, with the remaining adsorbates in the contamination-reducing component being water and/or decomposition products,
• wherein the release according to step B) is induced by a temporary change in the temperature of the contamination-reducing component, or alternatively the release according to step B) is induced by a displacement of the adsorbate from the adsorption sites using a displacement adsorbate of higher adsorption energy.

A process for monitoring the adsorption capacity of a contamination-reducing component in an electrical apparatuses over time, wherein the process comprises the steps of:

• α) providing to the insulating space a contamination-reducing component, with at least one kind of adsorbate adsorbed thereto, said at least one kind of adsorbate comprising carbon dioxide,
• β) determining the amount of carbon dioxide in the insulating space over time,
• γ) determining from a change measured in step β) the amount of carbon dioxide released from the contamination-reducing component, over time, and
• δ) determining from the amount determined in step γ) the amount of water and/or decomposition products adsorbed by the contamination-reducing component, and thereby its adsorption capacity over time,
• wherein the process comprises the further step of determining the amount of water in the insulating space over time.

A process of providing a contamination-reducing component to the electrical apparatus comprising the steps of:

• a) providing a pre-saturation vessel which is closable in a gas-tight manner and which in its closed state encloses a pre-saturation space, the volume of which being smaller than the volume of the insulating space of the electrical apparatus,
• b) placing a contamination-reducing component in the pre-saturation space,
• c) filling a pre-saturation gas comprising or consisting of carbon dioxide into the pre-saturation space such as to allow the contamination-reducing component placed in the pre-saturation space to adsorb carbon dioxide,
• d) transferring the contamination-reducing component with the adsorbed carbon dioxide to the electrical apparatus such that during operation of the electrical apparatus it comes into contact with the insulation medium;
• e) providing to the insulating space a contamination-reducing component, with at least one kind of adsorbate adsorbed thereto, said at least one kind of adsorbate comprising carbon dioxide,
• f) inducing an at least partial release of adsorbate, from the contamination-reducing component,
• g) determining the total amount of adsorbate released in step f),
• h) determining the amount of carbon dioxide released from the contamination-reducing component based on the determination of the total amount of adsorbate released, and
• i) determining from the amount determined in step h) the amount of the remaining adsorbates in the contamination-reducing component and thus the adsorption capacity of the contamination-reducing component, with the remaining adsorbates in the contamination-reducing component being water and/or decomposition products,
• wherein the release according to step f) is induced by a temporary change in the temperature of the contamination-reducing component, or alternatively the release according to step f) is induced by a displacement of the adsorbate from the adsorption sites using a displacement adsorbate of higher adsorption energy.