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Polarity of current transformer
Oct 12, 2017

Polarity of current transformer

The current transformer is used in an alternating circuit, and the direction of the current varies with time in the AC circuit. The current transformer polarity refers to a moment of one side of the polarity and the two sides of one end of the same polarity, which is positive, negative or at the same time, the polarity of polar end or the end of the same name, with the symbol "*" and "-" or "said.". (also understood as the relation between primary current and two current). In accordance with the regulations, the current transformer primary coil head is marked L1, the tail marked L2; the first end of the two coil marked K1, the end marked K2. In the terminal L1 and K1 called the polar end, L2 and K2 for the polar end. The three methods of tagging are shown in figure 1. The polarity of current transformer end discrimination and polarity of coupling coil of the same discriminant. A simpler method, such as using the 1.5V dry battery to connect the coil, and using a high internal resistance and a large range of DC voltmeter to connect the two coil. When the switch is closed, if it is found that the voltage meter pointer positive deflection can be determined 1 and 2 is the polar end, when the switch is closed, if it is found that the voltage meter pointer reverse deflection, can determine 1 and 2 are not polar end.


Add: No.38 South Taoyuan Road, Yaozhuang Town,Jiashan County, Jiaxing City, Zhejiang Province, China
Contact person: Elva Zhuang&Sunny Ni
Tel:+86-573-84775555
Fax:+86-573-84776699
Phone:+86-13732570078
E-mail:sales9@great-relay.com
       sunny.ni@great-relay.com