The invention relates to a member (O1) for measuring a variable representative of a common mode voltage (Vres) in an electrical network (1) or in a device (E), the network (1) or the device (E) comprising at least a first power conductor (C1) and a second power conductor (C2), the measuring member (O1) comprising two capacitive elements (EC1, EC2) which are intended to be arranged in a bridge between the two power conductors (C1, C2) and have capacity values that are identical to each other, wherein the two capacitive elements (EC1, EC2) are connected at a midpoint (M). The measuring member (O1) also comprises a two-terminal measurement circuit (SH) connected on the one hand to the midpoint (M) and on the other hand to a connection terminal intended to be electrically connected to a common conductor (Cc) provided in the electrical network (1) or the device (E).

A solid-state circuit breaker (SSCB) comprises a breaker housing, line-in and line-out terminals and one or more solid state switching components. The SSCB further comprises an air gap disposed between the line-in and line-out terminals and coupled in series with the solid-state switching components to complete a current conducting path when closed. The air gap includes an air gap driving mechanism. The solid-state circuit breaker further comprises an air gap actuator to interact with the air gap driving mechanism. The SSCB further comprises a controller that controls the air gap actuator and is configured to: (a). send a tripping signal to the air gap actuator and the one or more solid state switching components at substantially the same time or (b). send a tripping signal to the air gap actuator a short amount of time earlier than sending the tripping signal to the one or more solid state switching components.

A solid-state circuit breaker (SSCB) comprises a breaker housing, line-in and line-out terminals and one or more solid state switching components. The SSCB further comprises an air gap disposed between the line-in and line-out terminals and coupled in series with the solid-state switching components to complete a current conducting path when closed. The air gap includes an air gap driving mechanism. The solid-state circuit breaker further comprises an air gap actuator to interact with the air gap driving mechanism. The SSCB further comprises a controller that controls the air gap actuator and is configured to: (a). send a tripping signal to the air gap actuator and the one or more solid state switching components at substantially the same time or (b). send a tripping signal to the air gap actuator a short amount of time earlier than sending the tripping signal to the one or more solid state switching components.

A power supply may include a power converter circuit may be configured to control a magnitude of an output voltage, and generate a signal indicative of the magnitude of the output voltage. The power supply may include an over-power protection circuit that is configured to receive a feedback signal indicative of a magnitude of an input current of the power converter circuit. The power supply may include a control circuit that is configured to determine a magnitude of a requested power based on the signal indicative of the magnitude of the output voltage, and disable the power supply (e.g., control the magnitude of the output voltage to be zero volts) when the magnitude of the requested power is greater than a second threshold and the magnitude of input power indicated by the first feedback signal is less than a third threshold.

A device includes a relative temperature detector configured to determine a temperature difference between a device temperature sensed near a switch device and an ambient temperature sensed outside the switch device. The relative temperature detector is configured to generate a relative temperature output signal based on comparing the temperature difference to a relative temperature threshold. A power detector is configured to generate a power level signal based on comparing an indication of switch power of the switch device to a power threshold. The power level signal specifies whether the indication of switch power is above or below the power threshold. A thermal capacity control is configured to disable the switch device based on the power level signal specifying that the indication of switch power is above the power threshold and based on the relative temperature output signal indicating the temperature difference is above the relative temperature threshold.

Example implementations relate to power supply controllers. In some examples, a controller can include instructions to: set a power threshold for a power supply coupled to a computing component when the computing component is operating in a first state, determine when the computing component is alternating from the first state to a second state, and allow the power supply to exceed the power threshold for a fixed period of time in response to the computing component alternating from the first state to the second state.

The invention relates to a device (D) for detecting a fault in an electrical network (1), comprising at least one electrical quipment (E) which is electrically connected to a first power conductor (C1) and to a second power conductor (C2), the electrical network (1) being provided with a common conductor (Cc). The device comprises a first measuring member (O1) of the common mode voltage present on the power conductors (C1, C2) and a second measuring member (O2) of a current flowing in the power conductors (C1, C2). The device also comprises a calculator (UP) configured to determine over a determined observation period a mixed energy (E.sub.mix) transported in the measurement region from the first variable (V.sub.res) and the second variable (I.sub.net). The invention also relates to an equipment, a localization system and a method for detecting a fault in an electrical network.

There is disclosed a circuit breaker arrangement for interrupting a current flowing through a direct current (DC) transmission line including a semiconductor switching device and a pulse injection circuit configured to inductively inject into the transmission line a pulse current that opposes the current flowing through the transmission line to thereby reduce the current in the transmission line to cause the semiconductor switching device to turn-off to interrupt the path for the current flow through the transmission line.

There is disclosed a circuit breaker arrangement for interrupting a current flowing through a direct current (DC) transmission line including a semiconductor switching device and a pulse injection circuit configured to inductively inject into the transmission line a pulse current that opposes the current flowing through the transmission line to thereby reduce the current in the transmission line to cause the semiconductor switching device to turn-off to interrupt the path for the current flow through the transmission line.

A vehicle management system (VMS) computer includes a power distribution controller that includes a plurality of power distribution circuits that are each controlled by the controller to supply power to end component loads. The power distribution controller is communicably coupled to a data processing system by a bus. The VMS computer also includes a plurality of settable circuit breakers, wherein each of the plurality of settable circuit breakers corresponds to a respective one of the plurality of power distribution circuits. The power distribution controller is configured to monitor various values such as voltages, currents, powers, power spikes, and interruptions and to interrupt a respective one of the plurality of power distribution circuits via a settable circuit breaker upon detecting an indication of a fault from the monitored values.