Power theft inspection apparatus and power theft inspection method
A power theft inspection apparatus ( 100 ) is mounted on a power transmitting apparatus ( 10 ) which has a power transmission unit ( 13 ) and a power supply unit ( 12 ) configured to supply alternating current (AC) power to the power transmission unit. The power theft inspection apparatus has a controlling device ( 101 ) configured to (i) control the short-circuiting device (SW 1 , SW 2 ) to electrically cut off the power transmission unit from the power supply unit and to short-circuit the input unit of the power transmission unit, and further (ii) transmit, to the power receiving apparatus ( 20 ), a signal indicating a request to open the power reception unit ( 23 ), upon power theft inspection, and a determining device ( 101 ) configured to determine whether or not there is power theft according to current detected by a current detecting device ( 102 ) upon the power theft inspection.
1. A power theft inspection apparatus to be mounted on a power transmitting apparatus provided with a power transmission unit and a power supply unit that is configured to supply alternating current (AC) power to the power transmission unit, said power theft inspection apparatus comprising:
a switching device configured to electrically cut off the power transmission unit from the power supply unit and to short-circuit an input unit of the power transmission unit;
a current detecting device configured to detect a current flowing through the power transmission unit; and
a power theft detecting device configured to control said switching device to electrically cut off the power transmission unit from the power supply unit and to short-circuit the input unit of the power transmission unit, and determine whether or not there is power theft according to the detected current by said current detecting device.
2. The power theft inspection apparatus according to claim 1 , wherein said power theft detecting device determines whether or not there is the power theft, on the basis of a time constant of attenuation associated with the detected current in a predetermined period after the input unit of the power transmission unit is short-circuited.
3. The power theft inspection apparatus according to claim 1 , wherein said power theft detecting device reduces the AC power supplied to the power transmission unit before electrically cutting off the power transmission unit from the power supply unit.
4. The power theft inspection apparatus according to claim 1 , wherein said power theft detecting device further transmits, to a power receiving apparatus, a signal indicating a request to open a power reception unit of the power receiving apparatus.
5. A power theft inspection method in a power theft inspection apparatus mounted on a power transmitting apparatus that has a power transmission unit and a power supply unit configured to supply alternating current (AC) power to the power transmission unit, and said power theft inspection apparatus having a switching device configured to electrically cut off the power transmission unit from the power supply unit and to short-circuit an input unit of the power transmission unit and a current detecting device configured to detect a current flowing through the power transmission unit,
said power theft inspection method comprising:
a power theft detecting process of
controlling said switching device to electrically cut off the power transmission unit from the power supply unit and to short-circuit the input unit of the power transmission unit, and
determining whether or not there is power theft according to the detected current by said current detecting device.
6. A non-transitory computer readable medium on which is stored a computer program that, upon execution by a computer mounted on a power theft inspection apparatus, causes the power theft inspection apparatus to function as a power theft detecting device, said power theft inspection apparatus mounted on a power transmitting apparatus that has a power transmission unit and a power supply unit configured to supply alternating current (AC) power to the power transmission unit, said power theft inspection apparatus having a switching device configured to electrically cut off the power transmission unit from the power supply unit and to short-circuit an input unit of the power transmission unit and a current detecting device configured to detect a current flowing through the power transmission unit,
said power theft detecting device configured by way of said computer program operating said computer to
control said switching device to electrically cut off the power transmission unit from the power supply unit and to short-circuit the input unit of the power transmission unit, and
determine whether or not there is power theft according to the detected current by said current detecting device.