The invention relates to branched monoesters of formula (I), as well as to a dielectric fluid composition, intended for use as a cooling fluid for electrical equipment systems, comprising at least one of these branched monoesters of formula (I). The invention is also directed to a method of cooling electrical equipment systems by using the dielectric fluid compositions according to the invention.

An inventive method of mounting a cold shrinkable termination on an electric power cable has the steps of: providing a support tube having an outer surface coated with a soft material comprising a gel or a sealing compound on a predetermined segment; pre-expanding an insulation body of a cold shrinkable termination on the support tube coated with the soft material; inserting a cable joint of the electric power cable having a portion of a conductive shielding layer and a portion of an inner insulation layer removed, into the support tube; and removing the support tube from the cold shrinkable termination such that the cold shrinkable termination shrinks on the cable joint of the electric power cable, and the soft material is positioned between the cold shrinkable termination and the cable joint.

An inventive method of mounting a cold shrinkable termination on an electric power cable has the steps of: providing a support tube having an outer surface coated with a soft material comprising a gel or a sealing compound on a predetermined segment; pre-expanding an insulation body of a cold shrinkable termination on the support tube coated with the soft material; inserting a cable joint of the electric power cable having a portion of a conductive shielding layer and a portion of an inner insulation layer removed, into the support tube; and removing the support tube from the cold shrinkable termination such that the cold shrinkable termination shrinks on the cable joint of the electric power cable, and the soft material is positioned between the cold shrinkable termination and the cable joint.

Dielectric fluid comprising one or more saturated diesters of dimer acids. Such dielectric fluids can also comprise one or more additives such as antioxidants, oxidation inhibitors, corrosion inhibitors, metal deactivators, pour point depressants, or combinations thereof. Additionally, various embodiments concern an electrical device or component comprising a dielectric fluid containing one or more saturated diesters of dimer acids.

Dielectric fluid comprising one or more saturated diesters of dimer acids. Such dielectric fluids can also comprise one or more additives such as antioxidants, oxidation inhibitors, corrosion inhibitors, metal deactivators, pour point depressants, or combinations thereof. Additionally, various embodiments concern an electrical device or component comprising a dielectric fluid containing one or more saturated diesters of dimer acids.

A crosslinkable and crosslinked polymer composition containing a low density polyethylene (LDPE) homopolymer or low density polyethylene (LDPE) copolymer has excellent direct current (DC) electrical properties. The crosslinked polymer composition has an electrical conductivity of 150 fS/m or less, when measured at 70 C. and a 30 kV/mm mean electric field from a non-degassed, 1 mm thick plaque sample of the crosslinked polymer composition when measured according to a direct current (DC) conductivity method. A cable can be surrounded by at least one layer of the polymer composition.

A crosslinkable and crosslinked polymer composition containing a low density polyethylene (LDPE) homopolymer or low density polyethylene (LDPE) copolymer has excellent direct current (DC) electrical properties. The crosslinked polymer composition has an electrical conductivity of 150 fS/m or less, when measured at 70 C. and a 30 kV/mm mean electric field from a non-degassed, 1 mm thick plaque sample of the crosslinked polymer composition when measured according to a direct current (DC) conductivity method. A cable can be surrounded by at least one layer of the polymer composition.

The invention relates to a dielectric mineral oil composition for a transformer, formed by at least one dielectric mineral oil and graphene nanoflakes decorated with metal nanoparticles and/or ceramic nanoparticles. The dielectric mineral oil composition has improved thermal conductivity and stability.

The invention relates to a dielectric mineral oil composition for a transformer, formed by at least one dielectric mineral oil and graphene nanoflakes decorated with metal nanoparticles and/or ceramic nanoparticles. The dielectric mineral oil composition has improved thermal conductivity and stability.

The present disclosure relates to a driveline for an electric or hybrid-electric vehicle including an electric motor with an insulated magnet wire and a lubricating and cooling fluid configured to maintain the durability of the magnet wire.