An apparatus for a power system. The apparatus includes multiple electrical power sources and an enclosure operatively connected to the power sources at multiple input terminals. Multiple loads operatively connect to the enclosure at multiple output terminals by multiple cables. The enclosure includes the input terminals and the output terminals and a controller unit. Multiple selection units operatively connect to the controller unit, multiple power converters are connected to multiple connection paths. The selection units connect to at least one of multiple switches connected in the connection paths. Multiple sensor units are operatively attached to the controller unit which is configured to sence multiple parameters in the connection paths. Responsive to the parameters sensed by the sensor units, the selection units select the connection paths between the electrical power sources and the loads.

An apparatus for a power system. The apparatus includes multiple electrical power sources and an enclosure operatively connected to the power sources at multiple input terminals. Multiple loads operatively connect to the enclosure at multiple output terminals by multiple cables. The enclosure includes the input terminals and the output terminals and a controller unit. Multiple selection units operatively connect to the controller unit, multiple power converters are connected to multiple connection paths. The selection units connect to at least one of multiple switches connected in the connection paths. Multiple sensor units are operatively attached to the controller unit which is configured to sence multiple parameters in the connection paths. Responsive to the parameters sensed by the sensor units, the selection units select the connection paths between the electrical power sources and the loads.

Embodiments of the disclosure relate to a grid control system for at least one electrical grid. The system includes at least one peer-to-peer network having at least one peer-to-peer application. The peer-to-peer application has a detecting means executable by a part of the nodes of the peer-to-peer network and is configured to detect a first peer-to-peer module assigned to a controllable electrical device upon a connection of the controllable electrical device with the electrical grid. The first peer-to-peer module is configured to communicate with the peer-to-peer application, and the peer-to-peer application includes a registering means executable by at least a part of the nodes of the peer-to-peer network and is configured to store at least one identifier assigned to the detected controllable electrical device and at least one switching pattern of the detected controllable electrical device.

A method for exchanging electrical energy between a plurality of private electricity networks each comprising: a coordination unit, groups of electrical devices, and a plurality of relays arranged on the power supply lines of the devices. The method comprises: a) transmitting device status data from the devices to the coordination unit, b) establishing a set of electrical energy resources and requirements, c) comparing the set of resources and requirements with those of other private networks, d) allocating the requirements and resources to one another, e) ensuring at least part of the routing of electrical energy by means of digital certificates and instructions for drawing electrical energy that are sent to the relays, f) keeping record of each energy exchange in order to define a transaction between two private networks.

A method for exchanging electrical energy between a plurality of private electricity networks each comprising: a coordination unit, groups of electrical devices, and a plurality of relays arranged on the power supply lines of the devices. The method comprises: a) transmitting device status data from the devices to the coordination unit, b) establishing a set of electrical energy resources and requirements, c) comparing the set of resources and requirements with those of other private networks, d) allocating the requirements and resources to one another, e) ensuring at least part of the routing of electrical energy by means of digital certificates and instructions for drawing electrical energy that are sent to the relays, f) keeping record of each energy exchange in order to define a transaction between two private networks.

Disclosed a device for the load-free disconnection of a plug-in connection, which has an electrical disconnecting device and a locking clip. The locking clip can be pivoted both into a position locking the plug-in connection and into a position unlocking the plug-in connection. The device also has a sensor system, which interacts with the locking clip in its locking position to detect the locked state, in order to control the electrical disconnecting device.

An electronic device for series connection on a power supply line, wherein the device comprises a plurality of switches comprising at least a first switch, a second switch, and a third switch. The device further comprises a control unit configured to perform the following steps: operating error detection means during operation of the device in a first mode; operating the device in a second mode in response to an erroneous power state being detected by the error detection means during operation of the device in the first mode; operating the error detection means during operation of the device in the second mode in order to determine an error location associated with the erroneous power state detected by the error detection means during operation of the device in the first mode.

An electronic device for series connection on a power supply line, wherein the device comprises a plurality of switches comprising at least a first switch, a second switch, and a third switch. The device further comprises a control unit configured to perform the following steps: operating error detection means during operation of the device in a first mode; operating the device in a second mode in response to an erroneous power state being detected by the error detection means during operation of the device in the first mode; operating the error detection means during operation of the device in the second mode in order to determine an error location associated with the erroneous power state detected by the error detection means during operation of the device in the first mode.

An auxiliary power unit (10) for an aircraft (1) comprises a gas turbine engine comprising an engine core (12). The engine core comprises a core compressor (14) and core turbine (18) coupled by a core shaft (24). The auxiliary power unit further comprises a load spool comprising a load compressor (30), a load turbine (20) and a permanent magnet electric machine (28), each being coupled by a load shaft (26). The load shaft (26) and core shaft (24) are configured to rotate independently of one another.

An integrated drilling rig machine is disclosed. An integrated power and electronics unit (IPEU) includes all components necessary to transmit power from a generator to rig machines such as a mud pump, drawworks, top drive, etc. A housing contains a rectifier, a transformer, inverter(s), and starter motors. The inverters are coupled to rig machines and the starter motors are coupled to auxiliary devices such as cooling fans, lubrication pumps, communication systems, etc. A controller controls operation of the IPEU according to instructions received from a remote device.