Abstract:
Electronic leakage reduction techniques are provided, whereby a device is configured to detect characteristics of an appliance and its power supply when the appliance is off or otherwise placed in a mode for reduced power use by said appliance, and whereby voltage and power provided to the appliance are then substantially reduced. In other aspects of the disclosed technology, user behavior may also manually control power delivered to the appliance, for example, with a switch. In still other aspects of the disclosed technology, a device is configured to detect characteristics of an appliance and its power supply when the appliance is on or otherwise placed in a mode for higher power use by said appliance, and increases power to the appliance.
Abstract:
Embodiments of the present invention provide a method and a device for line-switching in an automated main distribution frame (AMDF) which may solve the problem of contact point damage which may occur during hot switching of micro electromechanical system (MEMS) matrix, and further solve the corresponding problems which may occur during the line-switching in AMDF. In particular, the present invention is preferably embodied in the following way: when switching operation of a switch unit in MEMS is to be performed, the current introduced into MEMS matrix is firstly cut off, and is then recovered when the switching operation is finished, so as to prevent the “agglutinate” phenomena. Therefore, the present invention provides corresponding protection for the switching process of MEMS matrix relays in AMDF, and effectively prevents the “agglutinate” phenomena when the switch unit in MEMS matrix performs switching operation, whereby the reliability of AMDF is enhanced.
Abstract:
The life of load tap changer contacts is monitored by detecting an arcing event; identifying arcing surfaces involved in the arcing event; calculating a per-unit loss of life for the identified arcing surfaces as a result of the arcing event; updating estimates of cumulative erosion for the arcing surfaces; comparing the updated estimates of cumulative erosion to a first threshold value; and signaling for action when at least one of the updated estimates of cumulative erosion exceeds the first threshold value.
Abstract:
Described is a system for generating electrical power, which system includes a turbine that is mechanically connected to a generator, which in turn is connected via a multiphase transformer to a load. In at least one embodiment, at least two counter-connected switching devices of the converter are assigned to each phase of the transformer. The transformer is provided on the side facing the converter with two winding arrangements in a star connection. Each of the windings of the first winding arrangement is connected to the switching devices belonging to one phase and switched in one direction. Each of the windings of the second winding arrangement is connected to the switching devices belonging to one phase and switched in the opposite direction. The star points of the two winding arrangements are connected via a direct current choke.
Abstract:
Described is a system for generating electrical power, which system includes a turbine that is mechanically connected to a generator, which in turn is connected via a multiphase transformer to a load. In at least one embodiment, at least two counter-connected switching devices of the converter are assigned to each phase of the transformer. The transformer is provided on the side facing the converter with two winding arrangements in a star connection. Each of the windings of the first winding arrangement is connected to the switching devices belonging to one phase and switched in one direction. Each of the windings of the second winding arrangement is connected to the switching devices belonging to one phase and switched in the opposite direction. The star points of the two winding arrangements are connected via a direct current choke.
Abstract:
Embodiments of the present invention provide a method and a device for line-switching in an automated main distribution frame (AMDF) which may solve the problem of contact point damage which may occur during hot switching of micro electromechanical system (MEMS) matrix, and further solve the corresponding problems which may occur during the line-switching in AMDF. In particular, the present invention is preferably embodied in the following way: when switching operation of a switch unit in MEMS is to be performed, the current introduced into MEMS matrix is firstly cut off, and is then recovered when the switching operation is finished, so as to prevent the “agglutinate” phenomena. Therefore, the present invention provides corresponding protection for the switching process of MEMS matrix relays in AMDF, and effectively prevents the “agglutinate” phenomena when the switch unit in MEMS matrix performs switching operation, whereby the reliability of AMDF is enhanced.
Abstract:
In the case of a semiconductor circuit arrangement for controlling a high voltage with a series circuit of semiconductor modules, the high voltage possibly being dropped between the ends of the series circuit, increased functional reliability is achieved by each semiconductor module having a parallel circuit of at least two components, at least one first component of which can be conducting or blocking, during normal operation, for that partial voltage of the high voltage which is applied to it, by the remaining component(s) of a parallel circuit blocking, during normal operation, at least when the first component blocks, and by each semiconductor module being set up in such a manner that, in the event of a functional disturbance in the first component, the remaining component(s) permanently change(s) into a conducting state.
Abstract:
A touch sensor is physically integrated with a light emitting device to provide a switching device with built-in backlighting. In some embodiments, the touch sensor and the light emitting device share electrical components.