An EMC test system for a rotating load includes a shielded chamber, a rotating load, a first connecting shaft, a compressor, a fluid pipeline, a fluid motor, a second connecting shaft and a motor load. The rotating load, the first connecting shaft and the compressor are arranged inside the shielded chamber. The fluid motor, the second connecting shaft and the motor load are arranged outside the shielded chamber. The rotating load is connected to the compressor through the first connecting shaft. The compressor is connected to the fluid motor through the fluid pipeline. The fluid motor is connected to the motor load through the second connecting shaft. The fluid pipeline passes through the shielded chamber. The compressor is employed such that energy is transferred to the outdoors through the transmission of fluid, and then converted into electric energy.

This invention makes reference to interrupter high voltage air-insulated telescopic disconnection switch with moving contact for supplying pressure, consisting of: a first male conductor comprising a first guide-positioner means internally coupled with such first male conductor via an intermediate section, a plurality of double-sided contact plates peripherally coupled with the intermediate section border; a second female conductor coaxially separated from the first male conductor comprising a second guide-positioner means internally coupled with such second female conductor by an intermediate section; a plurality of double-sided contact plates peripherally coupled with the intermediate section border; a moving conductor consisting of guide means internally coupled with such moving conductor by an intermediate support, being such conductor mobile and coaxially coupled with the interior of the first male conductor, where it moves to an open position, and is separated from the first male conductor and to a close position where such moving conductor causes a contact between the first male conductor and the second female conductor, by interacting among themselves to the first guide-positioner means of the first male conductor, the second guide-positioner means of the second female conductor and the guide means of the moving conductor; a plurality of contact plates peripherally coupled with the intermediate support border of the moving conductor, each of such contact plates having contact means for supplying pressure.

A switch for a medium voltage or high voltage switchgear includes: a first fixed contact; a second fixed contact; a moveable contact; at least one flexible link; and a contact drive. In an on state of the switch, the moveable contact is in a position that connects the first fixed contact to the second fixed contact. In an off state of the switch, the moveable contact is in a position where the first fixed contact is not connected to the second fixed contact. The at least one flexible link is connected to the moveable contact. The at least one flexible link engages with the contact drive. The contact drive pulls the moveable contact via the at least one flexible link and pushes the moveable contact via the at least one flexible link. Activation of the contact drive in a first mode moves the moveable contact.

A switch including a blade, an electrical terminal, and a sensor. The blade is pivotable between an open position and a closed position. The electrical terminal is configured to receive the blade when in the closed blade position. The sensor is coupled to the electrical terminal. The sensor is configured to sense a position of the blade and output a signal corresponding to the position.

A switch including a blade, an electrical terminal, and a sensor. The blade is pivotable between an open position and a closed position. The electrical terminal is configured to receive the blade when in the closed blade position. The sensor is coupled to the electrical terminal. The sensor is configured to sense a position of the blade and output a signal corresponding to the position.

A high voltage vertical break disconnect switch with a planetary gear reduction drive assembly including at least one stage operatively attached to a perpendicular rotatable insulator of the high voltage vertical break disconnect switch. The planetary gear reduction drive assembly includes a lower crankshaft part and a cooperating upper crankshaft part. The lower crankshaft part is solidly connected to the perpendicular rotatable insulator. The planetary gear reduction drive assembly includes an output that drives the upper crankshaft part. The upper crankshaft part drives a movable link assembly that causes a switch blade of the vertical break switch to open and close.

Disclosed is an air circuit breaker including a safety cover. According to embodiments disclosed herein, a setting unit of an overcurrent trip relay exposed to the outside through an opening is covered by the safety cover, and thus manipulation of the setting unit is not allowed before opening the safety cover. Accordingly, an accident due to malfunction or manipulation of the overcurrent trip relay by an unauthorized person may be prevented.

Disclosed is an air circuit breaker including a safety cover. According to embodiments disclosed herein, a setting unit of an overcurrent trip relay exposed to the outside through an opening is covered by the safety cover, and thus manipulation of the setting unit is not allowed before opening the safety cover. Accordingly, an accident due to malfunction or manipulation of the overcurrent trip relay by an unauthorized person may be prevented.

A dual energy storage operating mechanism of an isolating switch is provided. A first energy storage mechanism and a second energy storage mechanism are provided between an input wheel and a housing and between the input wheel and an output wheel or a first output shaft, respectively. The output wheel is provided with a limiting mechanism. The limiting mechanism forms a locking effect on the output wheel when the first energy storage mechanism stores energy, thereby enabling the second energy storage mechanism to store energy at the same time. When the first energy storage mechanism starts to release energy, the locking effect of the limiting mechanism is released, so that the output wheel and the first output shaft can rotate, and the first energy storage mechanism and the second energy storage mechanism release energy at the same time, forming a dual energy storage boosting effect.

A measurement system for measuring a device under test is described. The measurement system includes a control and analysis module composed of one or more circuits, a stimulus module composed of one or more circuits, and a measurement interface composed of ,for example, one or more circuits. The stimulus module is configured to generate an electric stimulus signal based on predefined measurement parameters. The measurement system is configured to be connected to a device under test via the measurement interface. The measurement interface is configured to forward the electric stimulus signal from the stimulus module to the device under test. The measurement interface further is configured to forward a response signal from the device under test to the control and analysis module, wherein the response signal corresponds to a response of the device under test to the stimulus signal. The control and analysis module is configured to analyze the response signal, thereby generating a set of analysis data. The control and analysis module is further configured to compare the set of analysis data generated with a database. The database includes several measurement data sets being associated with different classes or types of devices under test. The control and analysis module is further configured to adapt the predefined measurement parameters of the stimulus module based on the comparison of the set of analysis data with the database. Further, a method of measuring a device under test is described.