PCT843 DC immunity current transformer

Electrical Specification

(Customized is available)

Rated Primary Current	10A
Max Primary Current	80A
Rated Secondary Current	10mA
Accuracy	0.1~2.0
Electrical Strength	3000VAC 1mA60s
Load Resistance	40Ω
Rated Frequency	50/60HZ

Low-voltage current transformers and electric energy meters are both important components of low-voltage electric energy meters and one of its indispensable devices. It is worth noting that the load current of such a low-voltage energy meter will never be lower than 60A. The types and models of electric energy meters are different, and their DC Immune component performance is also different. It is always located in the low-voltage electric energy metering device together with the electric energy meter in the form of series connection.

Unlike the electric energy meter, it does not have the DC Immune component performance. Therefore, after being affected by the DC component load, the low-voltage electric energy metering device will have the problem of less energy. After investigation, it was found that the non-linear load of electrical equipment is the direct factor leading to the DC component.

The most important thing is that the occurrence probability of the DC component is greatly increased after the use of DC equipment or thyristor equipment, especially in electrified railways and plastic products. In the primary current of the user, the probability of occurrence of the DC component is quite large. Therefore, the analysis of the low-voltage DC Immune current transformer and the detection device is of great significance, and it is expected to use the detection device and the low-voltage DC Immune current transformer to improve the above situation.