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What is the function of current transformer?

Time：2018/12/26 13:28:35     Viewed：

Current transformer (CT) is short for CT. When measuring high current of alternating current, in order to facilitate the measurement of secondary instrument, it is necessary to convert to a more uniform current (the secondary rating of current transformer is 5A in our country). In addition, the voltage on the line is relatively high, such as direct measurement is very dangerous. Current transformer plays the role of converter and electrical isolation. Current transformer is a boost (down-current) transformer. It is a sensor for measuring instruments, relay protection and other secondary equipment in power system to obtain current information of primary circuit. Current transformer converts high current into low current proportionally. Current transformer is connected to primary system at the primary side and measuring instruments and relays at the secondary side. Protection, etc.