The connection mode of current transformer, current transformer

electric motor stator rotor lamination motor parts 

Specifications
1. Lamination of electric motor 
2. IP54 class F 
3. 100% copper 
4. silicon steel stamping 

5.stunning performance 
The connection mode of current transformer load according to the receive operation requirement. The connection mode of the most commonly used for single-phase, three-phase star and incomplete star. Rated than the rating of the transformer and error change ratio KN ac electric motor refers to the rated voltage of the voltage transformer ratio and rated current of the current transformer ratio. The former is defined as the original winding rated voltage U1N and deputy while winding, the ratio of the rated voltage U2N; The ratio of the latter for rated current I1N to I2N. KN = U1N/U2N () of the voltage transformer KN = I1N/I2N () of the current transformer voltage (or current) transformer primary side voltage (or current) change within a certain range, the general rules for 0.85 ~ 1.15 U1N I1N (or 10 ~ 120%), deputy side voltage (or current) should be in proportion to change, and the original, deputy side voltage (or current) should be in phase. But due to the transformer, such as internal resistance, excitation current and loss factor and the ratio and phase error occurred, is called contrast and Angle difference respectively. 



OEM industrial electric motors

Specifications
1. effiency: IE2 and IE1 
2. 20 years manufacturing experience 
3. 12 months guarantee 

4. low noise and vibtration
Contrast electric motor price is after conversion of the secondary voltage (or secondary current) with a voltage (or current) the difference between the value size of the ratio of the latter, namely Ct (current transformer) current transformers. FU as the contrast of voltage transformer, fI contrast for current transformer. When KNU2 > U1 (or KNI2 > I1), contrast is positive, whereas negative. For no compensation measures of voltage transformer, contrast is negative, Angle difference generally positive, the absolute value of contrast and Angle difference decreases with the increase of voltage; Core motor electric saturation, contrast and increases with the increase of voltage and Angle difference. For current transformer without compensation measures, contrast negative, Angle difference is positive, the absolute value of contrast and Angle difference decreases with increasing electric current. Using the compensation method can reduce the error of the transformer. Generally by add around on transformer winding, or add additional core and access the corresponding resistor, inductor, capacitor element to compensate. Commonly used compensation method has a number of turns compensation, compensation, scores of turns compensation, small core shunt capacitance compensation, etc.