The invention relates to an accumulator module for a hydromechanical spring-loaded drive, wherein the spring-loaded drive is provided to actuate a high-voltage power switch (12), and wherein the accumulator module contains a pressure-tight housing (1), an accumulator piston (2) which protrudes into the housing (1) and is axially moveable in the housing (1), and a sealing cover (4) which seals the housing in an pressure-tight manner. In addition, at least one connecting channel (5, 6) is provided, which is introduced into the housing (1) for transporting a highly pressurised fluid present between the inner wall (7) of the housing and the head (3) of the accumulator piston to a high-pressure channel (11) of the spring-loaded drive, which channel is outside the housing. In order to increase the service life of the accumulator module, at least one pressure relief groove (8) is circumferentially applied to the head (3) of the accumulator piston.

The invention relates to an accumulator module for a hydromechanical spring-loaded drive, wherein the spring-loaded drive is provided to actuate a high-voltage power switch (12), and wherein the accumulator module contains a pressure-tight housing (1), an accumulator piston (2) which protrudes into the housing (1) and is axially moveable in the housing (1), and a sealing cover (4) which seals the housing in an pressure-tight manner. In addition, at least one connecting channel (5, 6) is provided, which is introduced into the housing (1) for transporting a highly pressurised fluid present between the inner wall (7) of the housing and the head (3) of the accumulator piston to a high-pressure channel (11) of the spring-loaded drive, which channel is outside the housing. In order to increase the service life of the accumulator module, at least one pressure relief groove (8) is circumferentially applied to the head (3) of the accumulator piston.

A diagnostic apparatus for switching device diagnoses whether any anomalies occurs in a switching device including an operation shaft that opens and closes a circuit breaker contact serving as a contact. The diagnostic apparatus for switching device includes: a gradient calculation unit that calculates a gradient of a waveform that indicates motion of the operation shaft and represents a relationship between a position of the operation shaft and a time that elapses since an operating command has been input to the switching device; and an anomaly diagnosis unit that extracts, from a relationship between the time and the gradient calculated, a feature value representing a motion characteristic of the operation shaft and diagnoses whether an anomaly occurs and a factor behind the anomaly that occurs, on the basis of a result of comparison between the extracted feature value and a preset reference value.

A superconducting magnet apparatus includes a plurality of superconducting magnet coil sections connected in series and housed within a cryogenically cooled, vacuum container. A power source generates a current. A first lead is electrically connected to the superconducting magnet coil sections. A second lead is enclosed entirely within the vacuum container. The second lead has a first section and a second section, and the first section is electrically connected to the power source. The second section is electrically connected to the first lead, and rigidly connected to a linear displacement device enclosed entirely within the vacuum container. The linear displacement device linearly displaces the second section relative to the first section, so that the first section contacts the second section thereby electrically connecting the first and second sections, or by creating a gap between the first section and second section thereby electrically disconnecting the first section from the second section.

Devices and method for actuating a switch device (SM) by means of an elastic actuating element with a non-actuating shape 4 without actuating the switch device (SM) and an actuating shape 6 for actuating the switch device (SM).

Devices and method for actuating a switch device (SM) by means of an elastic actuating element with a non-actuating shape 4 without actuating the switch device (SM) and an actuating shape 6 for actuating the switch device (SM).

A medium voltage circuit switch or breaker includes: at least one movable contact; a fixed contact; and a mechanical or magnetical drive system, which moves the at least one movable contact to a closed or opened position by a movement of a rod and/or a lever. The mechanical or magnetical drive system is linked to a switching generating signal. The mechanical or magnetical drive system includes at least one pyrotechnical actuator or gas generator. The pyrotechnical actuator or the gas generator is linkable to the switching generating signal of the mechanical or magnetical drive system.

A medium voltage circuit switch or breaker includes: at least one movable contact; a fixed contact; and a mechanical or magnetical drive system, which moves the at least one movable contact to a closed or opened position by a movement of a rod and/or a lever. The mechanical or magnetical drive system is linked to a switching generating signal. The mechanical or magnetical drive system includes at least one pyrotechnical actuator or gas generator. The pyrotechnical actuator or the gas generator is linkable to the switching generating signal of the mechanical or magnetical drive system.

A food or beverage preparation machine, including a control panel, an actuator for setting at least one food or beverage preparation parameter to a predetermined value and a controlling unit, a pressure sensor electronically connected to the controlling unit for controlling the functioning of the food or beverage preparation machine, the actuator being pressure-sensitive and having a first end with a first deformable surface which is configured to receive a press action (F) from a user, a second end with a second deformable surface which is in physical contact with the pressure sensor, and an elongate portion connecting the first end and the second end the elongate portion being configured to transfer to the second end a pressure that has been generated at the first end, to set the at least one food or beverage preparation parameter.

A food or beverage preparation machine, including a control panel, an actuator for setting at least one food or beverage preparation parameter to a predetermined value and a controlling unit, a pressure sensor electronically connected to the controlling unit for controlling the functioning of the food or beverage preparation machine, the actuator being pressure-sensitive and having a first end with a first deformable surface which is configured to receive a press action (F) from a user, a second end with a second deformable surface which is in physical contact with the pressure sensor, and an elongate portion connecting the first end and the second end the elongate portion being configured to transfer to the second end a pressure that has been generated at the first end, to set the at least one food or beverage preparation parameter.