Device, system, and method for analyzing transformer oil

A method for determining a compound content in transformer oil, the method comprising:

• collecting a sample of oil from an oil tank of a transformer using a syringe;
• purging a vial with an inert gas;
• positioning the syringe in a syringe holder of an oil transfer device;
• inserting a needle of the syringe into the vial creating an airtight connection between the oil transfer device and the vial;
• operating a handle of the oil transfer device to fill the vial with oil from the syringe;
• releasing the inert gas overpressure in the vial;
• positioning the vial in a headspace sampler;
• extracting an aliquot from a headspace gas of the vial;
• injecting the aliquot into a gas chromatograph;
• and
• determining the compound content by analyzing the aliquot using the gas chromatograph, wherein the oil transfer device includes a stand having an upper section, a base plate, and a frame, the threaded rod having a first distal end and a second distal end, the threaded rod being interconnected to the upper section of the stand via a supporting arm, the handle being connected to the first distal end of the threaded rod, a disc being connected to the second distal end of the threaded rod, and a syringe holder having an opening configured to hold a syringe in a vertical position and is connected to the frame of the stand, the threaded rod being movable in a vertical direction by rotation of the handle and is configured to apply pressure via the disc on a plunger of the syringe positioned in the syringe holder to maintain the airtight connection between the oil transfer device and the vial,
• wherein the disc is covered with a rubber material.