Plug-type electric discharge detection unit and electric discharge detection system

The plug-in discharge detection unit, comprising two plugs of a cathode and an anode configured to allow insertion into respective two plug insertion holes of a plug socket, a discharge detection section configured to allow detection of a noise of discharge superimposed on a voltage or current, and an arithmetic section configured to allow determination of whether discharge has occurred based on the noise, the detection unit further comprising:

• a ground terminal electrically connected to a ground;
• at least one first switch electrically connected to a secondary side of the plug;
• a current limiting resistor electrically connected to a secondary side of the first switch;
• two or more plug sockets having at least two plug insertion holes of a cathode and an anode;
• four or more female terminals of cathodes and anodes provided behind the respective plug insertion holes and electrically connected to secondary sides of the respective plugs;
• and
• four or more second switches electrically connected between the respective female terminals and the plugs, wherein
• the current limiting resistor has a secondary side electrically connected to the ground terminal,
• the arithmetic section changes, if determining that discharge has occurred, the first switch from an open state to a closed state to pass an artificial leakage current with a current value in accordance with a resistance value of the current limiting resistor through the ground terminal, and
• the arithmetic section changes, if determining that discharge has occurred, two of the second switches corresponding to at least one of the plug sockets or all the second switches from a closed state to an open state to cut off power supply from the plugs to the two female terminals or all the female terminals.

A plug-in discharge detection unit, comprising two plugs of a cathode and an anode configured to allow insertion into respective two plug insertion holes of a plug socket, a discharge detection section configured to allow detection of a noise of discharge superimposed on a voltage or current, and an arithmetic section configured to allow determination of whether discharge has occurred based on the noise, the detection unit further comprising:

• a ground terminal electrically connected to a ground;
• at least one first switch electrically connected to a secondary side of the plug;
• a current limiting resistor electrically connected to a secondary side of the first switch;
• at least one plug socket having at least two plug insertion holes of a cathode and an anode;
• at least two female terminals of a cathode and an anode provided behind the respective plug insertion holes and electrically connected to secondary sides of the respective plugs;
• and
• at least one second switch electrically connected between the plug and at least one of the female terminals,
• a communication section configured to allow wireless communication with a computer terminal registered in advance, wherein
• the current limiting resistor has a secondary side electrically connected to the ground terminal,
• the arithmetic section changes, if determining that discharge has occurred, the first switch from an open state to a closed state to pass an artificial leakage current with a current value in accordance with a resistance value of the current limiting resistor through the ground terminal,
• the arithmetic section changes, if determining that discharge has occurred, the second switch from a closed state to an open state to cut off power supply from the plug to the female terminals, and
• the arithmetic section executes, if determining that discharge has occurred, a process of changing the first switch from the open state to the closed state and/or a process of changing the second switch from the closed state to the open state based on an instruction from the computer terminal received by the communication section.