A high voltage system including: a high voltage bushing having a bushing body configured to be assembled with a tank filled with a dielectric liquid wherein the bushing body has a cavity, and the bushing includes a dielectric liquid level sensor configured to measure a dielectric liquid level in the cavity, and a temperature distribution determining device configured to determine a heat distribution in the bushing based on the dielectric liquid level measured by the dielectric liquid level sensor.

A high-voltage combined electrical apparatus includes a transformer, at least one circuit breaker, at least one oil/gas separation module and at least one operating mechanism. In an embodiment, the circuit breaker includes a ceramic insulator, an upper outgoing line seat, a lower outgoing line seat, and a disconnecting mechanism connected there between. The oil/gas separation module includes a first end electrically connected to a transformer coil of the transformer, and a second end electrically connected to the lower outgoing line seat. The operating mechanism is connected to and controls the disconnecting mechanism. The high-voltage combined electrical apparatus of an embodiment integrates a circuit breaker and a transformer, omitting the conventional transformer oil/gas sleeve and overhead line, so that the structure thereof is simpler, the cost is lower, the area of ground occupied by the equipment is reduced, and the occurrence of short circuits associated with overhead lines is avoided.

The subject of the present application is a cover for distribution transformer filled with a dielectric liquid, equipped with electronic device integrated with the cover which is applied for transmission and distribution of electric energy. The cover is characterized in that the electronic device is immersed in the dielectric liquid filling a cooling compartment fixed on the cover; the cooling compartment has side walls, a top wall and a bottom wall which bottom wall is matched in the window made in the cover and the bottom wall forms a thermal barrier between the interior of the electric power device and the interior of the cooling compartment and the both interiors of the cooling compartment and of the electric power device are hermetically closed together.

The subject of the present application is a cover for distribution transformer filled with a dielectric liquid, equipped with electronic device integrated with the cover which is applied for transmission and distribution of electric energy. The cover is characterized in that the electronic device is immersed in the dielectric liquid filling a cooling compartment fixed on the cover; the cooling compartment has side walls, a top wall and a bottom wall which bottom wall is matched in the window made in the cover and the bottom wall forms a thermal barrier between the interior of the electric power device and the interior of the cooling compartment and the both interiors of the cooling compartment and of the electric power device are hermetically closed together.

Disclosed is a transformer capable of minimizing power loss during a transformation process by reducing stray load loss that occurs at a portion connecting low-voltage bushings. The transformer includes an enclosure disposed so as to surround power conversion equipment mounted therein, a pair of low-voltage bushings configured to transform the voltage of power received from a high-voltage bushing disposed on one side of the enclosure and to output the power, and a shielding member disposed near the pair of low-voltage bushings on the enclosure.

An electrical feedthrough for a pressure housing includes two feedthrough elements having substantially matching external shape and dimension. Each feedthrough element extends straight along an element axis between a first element end portion and a second element end portion. A connecting element is releasably connected to the feedthrough elements and has opposite sides, with one of the opposite sides having a contact area upon which the first element end portion of one of the feedthrough elements abuts, and with the other one of the opposite sides having a contact area upon which the first element end portion of the other one of the feedthrough elements abuts. At least one of the feedthrough elements includes an electrical feedthrough conductor which extends along the element axis of the feedthrough element and abuts a connecting conductor of the connecting element.

A pluggable high-voltage feed-through has an inner conductor, which extends in a longitudinal direction between a high-voltage connection and a plug-in section of the high-voltage feed-though. The plug-in section is configured for plugging the high-voltage feed-though into a device connection part of an electrical device. An insulating body surrounds the inner conductor. A test tapping point is provided with an electrical contact for connecting to a connection of a measuring device. The test tapping point is arranged outside the plug-in section. An electrical device has a fluid-tight housing and the high-voltage feed-through. A device connection part is provided for receiving and contacting the high-voltage feed-through.

A pluggable high-voltage feed-through has an inner conductor, which extends in a longitudinal direction between a high-voltage connection and a plug-in section of the high-voltage feed-though. The plug-in section is configured for plugging the high-voltage feed-though into a device connection part of an electrical device. An insulating body surrounds the inner conductor. A test tapping point is provided with an electrical contact for connecting to a connection of a measuring device. The test tapping point is arranged outside the plug-in section. An electrical device has a fluid-tight housing and the high-voltage feed-through. A device connection part is provided for receiving and contacting the high-voltage feed-through.

A high voltage system including: a high voltage bushing having a bushing body configured to be assembled with a tank filled with a dielectric liquid wherein the bushing body has a cavity, and the bushing includes a dielectric liquid level sensor configured to measure a dielectric liquid level in the cavity, and a temperature distribution determining device configured to determine a heat distribution in the bushing based on the dielectric liquid level measured by the dielectric liquid level sensor.

A support for mounting an accessory equipment assembly with one or more accessory equipment units, such as current transformer units, to a base of a bushing includes a conductor surrounded by an insulator part such that each of the accessory equipment units is positioned in a defined way regarding the conductor, wherein said support includes aligning means for aligning each individual accessory equipment unit separately with respect to the conductor. A corresponding accessory equipment module includes an accessory equipment assembly with one or more accessory equipment units such as current transformer units, and a support for mounting the accessory equipment assembly as well as a bushing unit including a bushing and said kind of accessory equipment module.