US 12,078,686 B2
Electric leakage detection method
Kimihiko Furukawa, Kakogawa (JP); and Junya Yano, Kato (JP)
Assigned to PRIME PLANET ENERGY & SOLUTIONS, INC., Tokyo (JP)
Filed by Prime Planet Energy & Solutions, Inc., Tokyo (JP)
Filed on Nov. 29, 2022, as Appl. No. 18/059,430.
Claims priority of application No. 2021-195289 (JP), filed on Dec. 1, 2021.
Prior Publication US 2023/0168314 A1, Jun. 1, 2023
Int. Cl. G01R 31/52 (2020.01); G01R 31/40 (2020.01)
CPC G01R 31/52 (2020.01) [G01R 31/40 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An electric leakage detection circuit configured to detect an electric leakage occurring position in a power source unit including multiple power sources electrically connected to each other, the electric leakage detection circuit comprising:
a reference terminal connected to a predetermined position of the power source unit;
an electric leakage voltage detection unit configured to calculate an electric leakage voltage VL which is an electrical potential difference between the reference terminal and the electric leakage occurring position; and
an electric leakage occurring position determination unit configured to determine the electric leakage occurring position based on the electric leakage voltage VL.