The role of current transformer, current transformer

 AC Electric motor Plastic fan parts 
Specifications
1. Customised
2. good quality
3. 20 years manufacturing experience
4. Delivery Detail: 20-35 days after receiving payment
Can the function of current transformer is the numerical larger current through a variable than convert numerical smaller secondary current, used for protection, measurement and other purposes. If change ratio of 400/5 of the current transformer, which can transform the actual for 400 a current of 5 a current. 1 principle of selection and inspection of current transformer) current transformers rated voltage is not less than the rated voltage instruction in line; 2) a load calculation according to the current IC choose current transformer changes; 3) choose according to the requirements of the secondary loop current transformer accuracy and calibration accuracy; 4) check dynamic stability and thermal stability. 2 current transformer converter than choice. Current transformer is a rated current I1n and the ratio of the secondary rated current I2n, called a current transformer rated current transformer ratio, Ki = I1n/I2n material N2 / N1. Type, N1 and N2 for current transformer primary winding and secondary winding turns. 


Totally Enclosed Protect Feature and Three-phase Phase low rpm ac electric motor
Specifications
Specifications1.3-phase asynchronous motors 
2.IEC standard 
3.OEM 
4.Voltage:50HZ &60HZ;380V&415V 

5.Protection class: IP54 
Current transformer primary side than rated current standard (e.g., 20, 30, 40, 50, 75, 100, 75, 2 (A) xa/C) wait for A variety of specifications, the secondary side current rating is usually 1 A or 5 A. Says the same two xa/C products have two kinds of current ratio, by changing the product at the top of the oil storage tank outside the connector wiring way, when the series current ratio of a/C, parallel 3 phase induction motor current ratio of 2 xa/C. In general, the choice of measurement with ct (current transformer) current transformer ratio should make one times rated current I1n not less than the load current in a circuit (IC). Such as load calculation in Induction motor line current is 350 a, the converter of current transformer ratio ac fan motor should choose 400/5. Protect with current transformer to ensure its accuracy requirement, can be changed than done.