PCT703 DC Immune Current Transformer price

Electrical Specification

(Customized is available)

Rated Primary Current	5A
Max Primary Current	50A
Rated Secondary Current	2mA
Accuracy	0.1~2.0
Electrical Strength	3000VAC 1mA60s
Load Resistance	20Ω
Rated Frequency	50/60HZ

Research on Detection Method of DC Immune Performance

The existing DC Immune low-voltage current transformers generally have the problem of lack of detection methods
The previous standards are not normative and cannot be judged according to unified rules and norms. Therefore, it is urgent to improve and optimize the detection method of DC ImmuneC performance.
Electric energy comparison
After using the low-voltage current transformer, the internal performance of the AC electric energy meter will change, and the proportion of even harmonics will also change. In order to make a clear assessment, the half-wave rectified electric energy comparison test circuit method must be applied.
Before the test, appropriate improvements should be made to the experimental circuit of the half-wave rectification electric energy comparison method based on the actual situation to ensure that it is consistent with the DC Immune performance of the low-voltage current transformer, so as to improve the accuracy of electric energy detection.