Abstract: Provided is a black box apparatus for analyzing a cause of arc interruption including: a controller which is installed on a power supply line and receives data detected from a CT detecting a current, a ZCT detecting a short circuit, and a voltage detector detecting a voltage; and an interruption unit which interrupts a power supply by receive a signal from the controller to operate a switch, in which the controller includes a calculation unit calculating data detected from the CT, the ZCT, and the voltage detector; a determination unit determining whether the arc occurs using the result of the calculation unit; and a storage unit storing data up to a predetermined time before the operation when the interruption unit operates to interrupt the power supply. Therefore, it is possible to accurately analyze reproduction for preventing occurrence of electrical fires and a cause of the arc interruption and determine an unstable condition of a power supply device which instantaneously occurs.

Abstract: An arc detection apparatus is provided. The arc detection apparatus detects an arc using an electrical energy, eliminates the possibility of a false arc detection caused by noise due to a power environment, increases accuracy of arc detection, and prevents fires that may occur in a home or an industrial site due to an arc occurrence.

Abstract: Provided is a black box apparatus for analyzing a cause of arc interruption including: a controller which is installed on a power supply line and receives data detected from a CT detecting a current, a ZCT detecting a short circuit, and a voltage detector detecting a voltage; and an interruption unit which interrupts a power supply by receive a signal from the controller to operate a switch, in which the controller includes a calculation unit calculating data detected from the CT, the ZCT, and the voltage detector; a determination unit determining whether the arc occurs using the result of the calculation unit; and a storage unit storing data up to a predetermined time before the operation when the interruption unit operates to interrupt the power supply. Therefore, it is possible to accurately analyze reproduction for preventing occurrence of electrical fires and a cause of the arc interruption and determine an unstable condition of a power supply device which instantaneously occurs.

Abstract: An arc detection apparatus is provided. The arc detection apparatus detects an arc using an electrical energy, eliminates the possibility of a false arc detection caused by noise due to a power environment, increases accuracy of arc detection, and prevents fires that may occur in a home or an industrial site due to an arc occurrence.