Abstract: Disclosed is a core for a current transformer, which forms an upper core in a round shape, and is disposed at a position lower than the center of a power line having both ends of the upper core received, thereby minimizing the stress of a magnetic path, and increases the permeability, thereby enhancing the magnetic induction efficiency. The disclosed core for the current transformer includes an upper core curved in a semi-circular shape to have a receiving groove formed therein, and having both ends extended downwards to be disposed to be spaced apart from each other and a lower core disposed on the lower portion of the upper core, and having both ends extended upwards to be disposed to face both ends of the upper core.

Abstract: Disclosed are a method and a system for storing data of a mobile communication terminal having a wireless access to the Internet function. The mobile communication terminal includes a camera, a memory, and an image processing unit for processing an image captured by the camera to generate image data. An image data storage mode set in the mobile communication terminal is detected when the camera starts an image capturing operation. It is determined whether to access the Internet via a wireless connection according to the detected image data storage mode. A wireless Internet access is performed according to the determination result. The image data generated from the image processing unit is transmitted in real time to a remotely-located file storage device having a memory through the wireless Internet connection.