PCT843 high precision current transformer supplier

Electrical Specification

(Customized is available)

Rated Primary Current10A
Max Primary Current80A
Rated Secondary Current10mA
Accuracy0.1~2.0
Electrical Strength3000VAC 1mA60s
Load Resistance40Ω
Rated Frequency50/60HZ

Note that: The circuit of secondary winding can not be opened absolutely,once its circuit is opened, the current of primary winding I1 will all transform into magnetizing current, causing αm and E2 to soar sharply, resulting in excessive saturation and magnetization of the iron core, serious heating and even burningthe coil; at the same time, the error will be larger after the magnetic circuit is excessively saturated and magnetized.

When the current transformer is working properly, the secondary winding is used in series with measuring instrument and current coils such as relays. The impedance of measuring instrument and current coils such as relays is very small, and the secondary winding is merely in a short circuit. The intensity of secondary current of the CT is determined by the primary current.

ItemRated Current(A)Current RatioAccuracy ClassLoad Resistance ΩFrequency HzDimensions (mm)
Click PN For DetailsIDODHT
PCT21550500~3500:10.1~2%3050/608.52913.2
PCT21660500~3500:10.1~2%3050/608.629.213
PCT52720500~3500:10.1~2%4050/607.6188
PCT53125500~3500:10.1~2%1050/60--15.5
PCT70160500~3500:10.1~2%2050/60723.411
PCT70280500~3500:10.1~2%3050/608.726.417
PCT703130500~3500:10.1~2%5050/6012.837.214
PCT70460500~3500:10.1~2%1050/60824.211.8
PCT71010500~3500:10.1~2%3050/6082411.8
PCT80150500~3500:10.1~2%10050/60284517.2
PCT802100500~3500:10.1~2%4050/603533.529.2
PCT82220500~3500:10.1~2%5050/6021318
PCT83150500~3500:10.1~2%3050/6010.623.913.6
PCT832100500~3500:10.1~2%2050/6012.626.114.6
PCT842100500~3500:10.1~2%10050/607.52217.5
PCT84310500~3500:10.1~2%4050/601831.523
PCT901180500~3500:10.1~2%2050/6018.55020