Abstract: Proposed is a high current measuring device for measuring an entire current flowing through a metal bar (10), wherein the metal bar (10) is a rectangle, has a plate-shaped outline, and includes an even number of split slits (11a, 11b) disposed in a widthwise direction at a center of a longitudinal direction so that a branch set 11, which includes branches (in an odd number no smaller than 3) through which the entire current is divided and flows, is provided, a 1-1 notch (12a) and a 1-2 notch (12b) respectively provided by being concaved inward from two longer sides of the rectangle at the front ends of the split slits (11a, 11b), and a 2-1 notch (14a) and a 2-2 notch (14b) respectively provided by being concaved inward from two longer sides of the rectangle at the rear ends of the split slits (11a, 11b).

Abstract: An electric device having multiple displays, and a control method therefor are proposed. The electric device is mounted on a supporting body, and includes a first display (10) and a second display (20), which are configured in a same housing (30) and are facing a front, wherein one of the first display (10) and the second display (20) provides a rectangular horizontal screen and displays information about a meter function, and the other of the first display (10) and the second display (20) provides a rectangular vertical screen and displays information about a relay function.

Abstract: A motor control center system according to the present invention includes a first integrated module and a second integrated module which are provided in correspondence with a motor control center and in a dual structure; a plurality of protection control modules provided in correspondence with respective motor units; and a multipoint bus to which the protection control modules are connected such that a serial communication network is formed between the first integrated module and second integrated module and the plurality of protection control modules, wherein one end of the multipoint bus is commonly connected to a first serial communication port of the first integrated module and a first serial communication port of the second integrated module, and the other end of the multipoint bus is commonly connected to a second serial communication port of the first integrated module and a second serial communication port of the second integrated module.

Abstract: A motor control center system according to the present invention includes a first integrated module and a second integrated module which are provided in correspondence with a motor control center and in a dual structure; a plurality of protection control modules provided in correspondence with respective motor units; and a multipoint bus to which the protection control modules are connected such that a serial communication network is formed between the first integrated module and second integrated module and the plurality of protection control modules, wherein one end of the multipoint bus is commonly connected to a first serial communication port of the first integrated module and a first serial communication port of the second integrated module, and the other end of the multipoint bus is commonly connected to a second serial communication port of the first integrated module and a second serial communication port of the second integrated module.

Abstract: The present invention relates to a motor control center system comprising an integrated module which is connected to multiple protection control modules through a first serial communication network and is connected to multiple LOP controllers through a second serial communication network, and communicates with a computer or a PLC in a main control room, wherein i) operation command transmission between the LOP controllers and the protection control modules and ii) measured-data collection, operational-state reporting, or control command transmission between the main control room or the PLC and the protection control modules are performed while the integrated module commonly intervenes therebetween; and commonly use the first serial communication network.

Abstract: The present invention relates to a motor control center system comprising an integrated module which is connected to multiple protection control modules through a first serial communication network and is connected to multiple LOP controllers through a second serial communication network, and communicates with a computer or a PLC in a main control room, wherein i) operation command transmission between the LOP controllers and the protection control modules and ii) measured-data collection, operational-state reporting, or control command transmission between the main control room or the PLC and the protection control modules are performed while the integrated module commonly intervenes therebetween; and commonly use the first serial communication network.

Abstract: Provided is a power measuring system for measuring power of a main circuit of incoming feeder and a branch circuit in a distribution panel, cabinet panel, or motor control center. The power measuring system includes a voltage sensing unit for sensing analog voltage of the main circuit and generating main voltage data by converting the sensed analog voltage to digital form, a current sensing unit for generating main current data of the main circuit or sub current data of the branch circuit, and a current data communication unit or voltage data communication unit for transmitting the sensed data or power-related data generated using the sensed data, wherein main circuit power data or branch circuit power data is calculated and displayed or transmitted.