A system for conditioning electric power supplied from a three-phase alternating current electric power supply, including three phase lines, to a load, including the phase lines and an electric ground line, includes a plurality of first surge arresters, a plurality of second surge arresters, a plurality of third surge arresters, a three-phase surge suppressor, and a plurality of capacitors. The surge arresters minimize the amount by which the voltage between two phases and the ground line exceeds a rated value. The three-phase surge suppressor minimizes the amount by which the voltage between any of the three phases and the ground line exceeds a rated value. The capacitors minimize the amount by which the voltage between two phases falls below a rated value.

The present application provides a surge protection circuit, a lightning protector and an electronic device. The surge protection circuit includes a first protection module, the first protection module comprises a first protection sub-module and a second protection sub-module electrically connected to the first protection sub-module. The first protection sub-module is used for surge protection during a first surge input, the second protection sub-module is used for surge protection during a second surge input protection, and the second surge strength is higher than the strength of the first surge. The surge protection circuit, lightning protection and electronic equipment could provide different levels of surge protection for different levels of surge and could greatly enhance the sensitivity of lightning protection.

The present application provides a surge protection circuit, a lightning protector and an electronic device. The surge protection circuit includes a first protection module, the first protection module comprises a first protection sub-module and a second protection sub-module electrically connected to the first protection sub-module. The first protection sub-module is used for surge protection during a first surge input, the second protection sub-module is used for surge protection during a second surge input protection, and the second surge strength is higher than the strength of the first surge. The surge protection circuit, lightning protection and electronic equipment could provide different levels of surge protection for different levels of surge and could greatly enhance the sensitivity of lightning protection.

A circuit protection device is provided. The circuit protection device includes an active energy absorber that is coupled between two power lines in an electrical power distribution system and is configured to selectively conduct fault current responsive to overvoltage conditions. The active energy absorber includes an overvoltage protection module that includes two thyristors that are connected in anti-parallel with one another and a varistor that is connected with the overvoltage protection module as a series circuit. The series circuit including the varistor and the overvoltage protection module is connected between the power lines.

A circuit protection device is provided. The circuit protection device includes an active energy absorber that is coupled between two power lines in an electrical power distribution system and is configured to selectively conduct fault current responsive to overvoltage conditions. The active energy absorber includes an overvoltage protection module that includes two thyristors that are connected in anti-parallel with one another and a varistor that is connected with the overvoltage protection module as a series circuit. The series circuit including the varistor and the overvoltage protection module is connected between the power lines.

In one embodiment, and apparatus includes an electrical socket for connection with an electrical plug, a sensor for identifying a secure connection between the electrical socket and the electrical plug, and an electronic controller electrically coupled to the electrical socket and comprising a power input for receiving power. The electronic controller is operable to transmit power to the electrical socket upon receiving a signal from the sensor identifying the secure connection between the electrical socket and the electrical plug and shut off or turn on power to the electrical socket upon receiving an external input to the electronic controller. A method is also disclosed herein. The apparatus and method provide an electronic controlled power switch or circuit breaker safety device.

In one aspect, the application provides an electrical system including a conductor, a ground, an arrester electrically connected to the conductor, and a disconnector assembly electrically connected between the arrester and the ground. The disconnector assembly includes an isolator configured to perform an operating function in response to the occurrence of an event and a housing configured to surround the isolator. The isolator includes a first terminal electrically connected to the arrester by a first wire and a second terminal electrically connected to the ground by a second wire. The housing includes a first opening through which the first terminal extends, a second opening through which the second terminal extends, and a retention mechanism configured to hold the isolator in place relative to the arrester.

A system and method for persistent monitoring, detecting, and mitigating detecting and isolating a high-altitude electromagnetic pulse (“HEMP”) along electrical lines electrically connected to a monitored infrastructure so as to protect the monitored infrastructure, the method including a phase unit receiving sensor signals from a plurality of analog sensor circuits electrically connected to each of the electrical lines, respectively, upstream of and associated with the monitored infrastructure. The method includes determining, limiting, shunting, and limiting the impinged transient surges and instantaneously indicates locally the status of the monitored parameters using visual and audio sound via a cybersecure optical communication channel supporting a plurality of wavelengths, from which one wavelength is utilized for a one-directional communication and a different wavelength optical signal establishing a controlled temporary two-directional communication for surge protection system maintenance and update.

A circuit includes a detector and controller circuit configured to detect a high field RF (radio frequency) electromagnetic fields indicating a potential of an electromagnetic pulse event capable of damaging electrical equipment connected to a power grid. The circuit also includes controller receiving an input from the detector circuit, the controller being included within a shielded enclosure and configured to initiate an event in response to detection of the high field electromagnetic pulse field to remove the electrical equipment from the power grid.

A circuit includes a detector and controller circuit configured to detect a high field RF (radio frequency) electromagnetic fields indicating a potential of an electromagnetic pulse event capable of damaging electrical equipment connected to a power grid. The circuit also includes controller receiving an input from the detector circuit, the controller being included within a shielded enclosure and configured to initiate an event in response to detection of the high field electromagnetic pulse field to remove the electrical equipment from the power grid.