PCT710 High accuracy precision current transformer

Electrical Specification

(Customized is available)

Rated Primary Current7A
Max Primary Current20A
Rated Secondary Current7mA
Accuracy0.1~2.0
Electrical Strength3000VAC 1mA60s
Load Resistance270Ω
Rated Frequency50/60HZ

Current Transformers are mainly divided into two categories, one is called voltage transformers, the other is called current transformers, and its appearance is mainly used in the power industry.

In the power supply system, large currents and high voltages sometimes cannot be directly measured accurately with ammeters and voltmeters. It must be accurately measured after being reduced proportionally through the transformer.

The internal structure of the transformer is a transformer. It operates according to the principle of transformers.

The working principle of the voltage transformer is equal to the transformer with an open circuit on the secondary side. It is used for voltage transformation, and a voltmeter is connected to the secondary side to accurately measure the voltage (a number of voltmeters can be connected in parallel). The secondary side of the voltage transformer must not be short-circuited.

The working principle of the current transformer is equal to the transformer of the short-circuit fault on the secondary side. It is used for current conversion, and an ammeter is connected on the secondary side to accurately measure the current (it can connect several ammeters in series). The secondary side of the current transformer must not be open.

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