A direct current residual current protection device having a controlled current discharge having a positive and a negative input terminal, a positive and a negative output terminal, a first switch, a controller and a discharge control circuit. The first sw...

The invention solves the issue of a method and system for short-circuit protection of DVR voltage variation compensator with booster transformer. Such compensators are installed in LV power supply networks in order to reduce voltage fluctuations, character...

An electrical assembly, comprising: a main current sensor; a main pyrotechnic fuse connected in series with the main current sensor; a first contactor connected in series with the main current sensor and the main pyrotechnic fuse; a first load circuit elec...

A control device (10) includes a generator simulating unit (153) to generate a phase of output voltage of a power converter by simulating characteristics of a synchronous generator, a first voltage command generating unit (155) to generate a first voltage ...

A protector for an electricity supply circuit includes: a power switch (11) capable to switch between connection and disconnection of the electricity supply circuit; a controller (12) configured to output a switching command signal to the power switch (11)...

The present disclosure relates to a detecting circuit for a circuit breaker (10), comprises: a detection sensor (20) configured to output a detection signal by detecting a voltage or a current on an alternating current electric power circuit; a low pass fi...

A power supply circuit apparatus, and method for controlling the same, includes multiple power supplies 110, 120 connected to a load via power channels 116, 126 and a controller 160. The controller detects a short circuit in the power supply based on a mea...