Patent ID: 9685777
Date: 2017-06-20
CPC Classifications: H02H

Claim:
1. A leakage detection breaker provided between a power supply and a load, comprising: a current transformer configured to detect a leakage current from a power line connected between the power supply and the load; a current leakage determination unit configured to determine DC and AC leakages based on an output signal from the current transformer; a power supply cut-off unit configured to cut off a supply of DC or AC power when the current leakage determination unit determines the occurrence of the DC or AC leakage, and an input voltage type determination unit configured to determine a type of voltage applied from the power supply to the power line when the power supply is supplying power to the load, wherein the leakage determination unit determines whether the DC leakage or the AC leakage occurs depending on the type of voltage determined by the input voltage type determination unit.