Multi-channel leakage current monitoring system

Patent metadata

Field	Value
Publication number	US-9201110-B2
Application number	US-201213668149-A
Country	US
Kind code	B2
Filing date	Nov 2, 2012
Priority date	Dec 19, 2011
Publication date	Dec 1, 2015
Grant date	Dec 1, 2015

Abstract

Disclosed is a multi-channel leakage current monitoring system configured to monitor leakage currents transmitted to loads from a plurality of molded case circuit breakers (MCCBs), and to transmit the leakage currents to a smart meter. The system comprises: a plurality of current transformers configured to measure power information data about loads connected to secondary side power lines of the MCCBs; and a multi-channel measuring unit (MCMU) configured to detect a leakage current by analyzing the power information data received from the current transformers. Under such a configuration, the size of the system can be reduced, and the number of communication lines can be minimized.

First claim

What is claimed is:

1. A multi-channel leakage current monitoring system configured to monitor leakage currents transmitted to loads from a plurality of molded case circuit breakers (MCCBs), the system comprising:
a plurality of current transformers configured to measure power information data about loads connected to secondary side power lines of the MCCBs, and to provide the measured data;
a multi-channel measuring unit (MCMU) configured to detect a leakage current by analyzin…

Assignees

• Lsis Co Ltd

Inventors

• Kim Hyung Kyu

Classifications

• G01R31/3277

  Physics · mapped topic

• G01R31/025 Primary

  Physics · mapped topic

• G01R31/327

  Physics · mapped topic

• G01R31/52 Primary

  Physics · mapped topic