A current sensing modular system, which allows sensing the phase current and/or the around-fault or zero-sequence current, having to that end at least a first module having at least one phase current sensor embedded therein and a second module having a zero-sequence current sensor embedded therein. The first module is independent of the second module, both modules being installed directly in the connection elements, i.e., in the connection point between at least one bushing and at least one connector of at least one grid cable.

Embodiments of the present disclosure provide a switch assembly for a detection unit of a switchgear or controlgear. The switch assembly includes a shaft rotatably arranged between opposite side walls of a compartment for accommodating an electrical component, the electrical component coupled to at least one connecting busbar of the switchgear; at least one conductive unit, each conductive unit being rotatable about the shaft between an open position and a close position; and at least one coupling mechanism arranged in the compartment and configured to electrically couple the conductive unit to the detection unit, wherein each coupling mechanism is electrically coupled to the respective connecting busbar when the conductive unit is in the close position, and is electrically decoupled from the respective connecting busbar when the conductive unit is in the open position and is grounded, and wherein each coupling mechanism includes a connecting unit for receiving a terminal of the detection unit positioned outside the compartment. In this way, maintenance or replacement of the detection unit will not affect the airtightness of the compartment. Furthermore, the connecting unit can also be used to receive the terminal of other kind of detection unit, such as terminals of test assemblies.

An electrical power transmission device includes at least one switching unit having at least one contact fitting for electrically contacting the switching unit. Furthermore, the switching unit has a sensor for monitoring the state of the switching unit. The sensor is supported by the contact fitting. The sensor is at least partially masked by the contact fitting.

A bushing tank having power receiving lead-in bushings of three phases to which conductor portions extended rearward of a main body portion in which a switching device is housed are connected is included, and the power receiving lead-in bushings of the three phases are disposed at an upper surface portion of the bushing tank at equal intervals in a circumferential direction such that end portions thereof are inclined outward so as to be separated from each other, and one of the power receiving lead-in bushings of the three phases is disposed along a front-rear direction of the main body portion. Owing to this configuration, it is possible not only to ensure insulation distances between the end portions of the power receiving lead-in bushings but also to ensure insulation distances between lead-in wires regardless of a power receiving lead-in direction.

An electrical power transmission device includes at least one switching unit having at least one contact fitting for electrically contacting the switching unit. Furthermore, the switching unit has a sensor for monitoring the state of the switching unit. The sensor is supported by the contact fitting. The sensor is at least partially masked by the contact fitting.

A switching device has an encapsulation housing and lashing points. The lashing points are arranged in such a manner that a center of gravity of the switching device lies below the lashing points in a lashing direction.

A high-voltage transducer includes a housing, which spatially encloses at least one electrical measuring device and an insulating gas. The insulating gas is clean air, with which electrical insulation in the housing of the high-voltage transducer is carried out. A method for measuring with the high-voltage transducer is also provided.

A multiphase switchgear includes a switch panel, a vertical input housing module and a vertical switch housing module. The switch housing module and the input housing module are spaced apart from one another by a transverse housing module. The input housing module, the transverse housing module and the switch housing module form a first phase block. A plurality of phase blocks are located flush one behind the other in the direction of the transverse housing.

A bushing tank having power receiving lead-in bushings of three phases to which conductor portions extended rearward of a main body portion in which a switching device is housed are connected is included, and the power receiving lead-in bushings of the three phases are disposed at an upper surface portion of the bushing tank at equal intervals in a circumferential direction such that end portions thereof are inclined outward so as to be separated from each other, and one of the power receiving lead-in bushings of the three phases is disposed along a front-rear direction of the main body portion. Owing to this configuration, it is possible not only to ensure insulation distances between the end portions of the power receiving lead-in bushings but also to ensure insulation distances between lead-in wires regardless of a power receiving lead-in direction.

The present invention belongs to the technical field of mobile transformer substation, and in particular relates to a vehicle-mounted mobile transformer with a position-adjustable lead-out bushing. In view of the shortage that, when the existing conventional transformer is applied to a vehicle-mounted mobile transformer substation, the transportation dimension exceeds the regulated width, height and limit, the present invention adopts the following technical solution: a vehicle-mounted mobile transformer with a position-adjustable lead-out bushing, comprising: a transformer body; and a high-voltage lead-out bushing, the high-voltage lead-out bushing comprising an oil-SF6 gas bushing, an SF6 gas-air bushing and a connecting device, the oil-SF6 gas bushing being mounted on a high-voltage bushing base, the connecting device being mounted on the oil-SF6 gas bushing, the SF6 gas-air bushing being mounted on the connecting device, and the SF6 gas-air bushing being rotatable relative to the connecting device such that the position of the SF6 gas-air bushing is adjustable. The present invention has the beneficial effects that the SF6 gas-air bushing is rotatable, the position is adjustable and thus the transportation requirement of high-voltage (such as 220 kV) equipment is met.