Abstract: A circuit protection device includes a plasma gun configured to emit an ablative plasma along an axis, and a plurality of electrodes, wherein each electrode is electrically coupled to a respective conductor of a circuit and is arranged substantially along a plane that is substantially perpendicular to the axis such that each electrode is positioned substantially equidistant from the axis.

Abstract: A power circuit protection system includes a current sensor configured to measure a first current level through a conductor of the circuit, a voltage sensor configured to measure a first voltage level across a plurality of conductors of the circuit, and a controller communicatively coupled to the current sensor and to the voltage sensor. The controller is configured to receive a first signal from the current sensor, wherein the first signal is representative of the first current level, and receive a second signal from the voltage sensor, wherein the second signal is representative of the first voltage level. Based on the first signal and the second signal, the controller is configured to determine whether to activate a first circuit protection device or a second circuit protection device.

Abstract: A power equipment protection system includes a first circuit monitoring device configured to monitor a first circuit, a second circuit monitoring device configured to monitor a second circuit that is electrically coupled to the first circuit, and a processor communicatively coupled to the first circuit monitoring device and the second circuit monitoring device. The processor is configured to receive a signal indicative of a fault from at least one of the first circuit monitoring device and the second circuit monitoring device, determine whether the fault occurred in the first circuit or in the second circuit, and if the fault occurred in the second circuit, determine whether the fault is an arc event.

Abstract: An arc containment device is presented. The arc containment device includes a shock shield further having a multiple apertures for escape of gas, the shock shield configured to surround an arc source. The device further comprises an inner enclosure having a multiple openings generally aligned with the multiple apertures, the inner enclosure configured to provide an electrical insulation base for the arc source. An outer enclosure disposed is provided around the inner enclosure, the outer enclosure configured to direct the gas to the environment outside the device.

Abstract: A power equipment protection system includes a circuit breaker, a current sensor configured to measure a current through a circuit, a light sensor configured to detect a light event, and a controller communicatively coupled to the current sensor and to the light sensor, wherein the controller is configured to determine whether the light event originated from operation of the circuit breaker.

Abstract: An energy management system manages energy consumption of managed device(s) disposed to receive energy via a meter connected to an energy supply, the energy supply. A system controller has a computer processor that instructs the managed device(s) to employ an operational mode based on the priority, the energy need, the demand state, and whether the energy consumption rate of the managed device(s) exceeds energy available from at least one of the external energy source and internal energy source.

Abstract: An ablative plasma gun includes a first portion having a first diameter and a second portion having a second diameter that is larger than the first diameter, wherein a chamber is defined by the first portion and the second portion.

Abstract: An arc transfer device for use in a switchgear includes at least one first electrical connector configured to connect the arc transfer device to a voltage supply within the switchgear, and a racking cassette. The racking cassette includes at least one second electrical connector that is configured to be electrically coupled to the at least one first electrical connector based on the racking position of the arc transfer device.

Abstract: An arc flash detector includes a light sensor, a light attenuating filter in communication with the light sensor, a housing disposed to support the light attenuating filter and the light sensor, and a logic circuit in communication with the light sensor. The logic circuit is disposed to receive an output of the light sensor and disposed to produce an output signal responsive to a predetermined intensity of light received by the light sensor. The light attenuating filter is disposed to reduce the intensity of light received by the light sensor. The housing is also disposed to retain the light sensor and the light attenuating filter at a fixed orientation.

Abstract: A power equipment protection system includes a first circuit monitoring device configured to monitor a first circuit, a second circuit monitoring device configured to monitor a second circuit that is electrically coupled to the first circuit, and a processor communicatively coupled to the first circuit monitoring device and the second circuit monitoring device. The processor is configured to receive a signal indicative of a fault from at least one of the first circuit monitoring device and the second circuit monitoring device, determine whether the fault occurred in the first circuit or in the second circuit, and if the fault occurred in the second circuit, determine whether the fault is an arc event.

Abstract: An ablative plasma gun having a dual power source pulse generator is configured to generate a high voltage low current pulse and a low voltage high current pulse. A pair of electrodes are disposed and configured to receive the high voltage low current pulse, and to receive the low voltage high current pulse in response to the high voltage low current pulse.

Abstract: A circuit protection device includes a plasma gun configured to emit an ablative plasma along an axis, and a plurality of electrodes, wherein each electrode is electrically coupled to a respective conductor of a circuit and is arranged substantially along a plane that is substantially perpendicular to the axis such that each electrode is positioned substantially equidistant from the axis.

Abstract: An ablative plasma gun includes a first portion having a first diameter and a second portion having a second diameter that is larger than the first diameter, wherein a chamber is defined by the first portion and the second portion.

Abstract: An arc transfer device for use in a switchgear includes at least one first electrical connector configured to connect the arc transfer device to a voltage supply within the switchgear, and a racking cassette. The racking cassette includes at least one second electrical connector that is configured to be electrically coupled to the at least one first electrical connector based on the racking position of the arc transfer device.

Abstract: A power equipment protection system includes a circuit breaker, a current sensor configured to measure a current through a circuit, a light sensor configured to detect a light event, and a controller communicatively coupled to the current sensor and to the light sensor, wherein the controller is configured to determine whether the light event originated from operation of the circuit breaker.

Abstract: A power circuit protection system includes a current sensor configured to measure a first current level through a conductor of the circuit, a voltage sensor configured to measure a first voltage level across a plurality of conductors of the circuit, and a controller communicatively coupled to the current sensor and to the voltage sensor. The controller is configured to receive a first signal from the current sensor, wherein the first signal is representative of the first current level, and receive a second signal from the voltage sensor, wherein the second signal is representative of the first voltage level. Based on the first signal and the second signal, the controller is configured to determine whether to activate a first circuit protection device or a second circuit protection device.

Abstract: An electrical pulse circuit is disclosed. The electrical pulse circuit is in connection with a first pair of electrodes defining a first gap between ends thereof and a second pair of electrodes defining a second gap between ends thereof. The second gap is disposed proximate to the first gap. The circuit includes a controller, a first electrical pulse source in power connection with the first pair of electrodes, and a second electrical pulse source in power connection with the second pair of electrodes. The first electrical pulse source is productive of a high voltage low current arc across the first gap in response to the controller and the second electrical pulse source is productive of a low voltage high current arc across the second gap in response to the controller and the high voltage arc.

Abstract: An ablative plasma gun having a dual power source pulse generator is configured to generate a high voltage low current pulse and a low voltage high current pulse. A pair of electrodes are disposed and configured to receive the high voltage low current pulse, and to receive the low voltage high current pulse in response to the high voltage low current pulse.

Abstract: A dual power source pulse generator in power connection with a pair of electrodes having a first electrode, a second electrode and an air gap therebetween. The dual power source pulse generator includes a first pulse source producing a high voltage low current pulse across the pair of electrodes to allow dielectric breakdown, and a second pulse source electrically connected in parallel with an output of the first pulse source, and producing a low voltage high current pulse to thereby produce a current flow of high-density plasma between the same electrodes of the pair of electrodes in response to the high voltage low current pulse.

Abstract: A device and method to determine the presence of a ground fault that distinguishes between the capacitive portion of the currents to ground, and the resistive portion of the currents to ground by ascertaining aspects of the voltage and residual current waveforms.