-
A brief introduction to zero sequence transformer
Oct 28 , 2020
Zero-sequence current transformers are also called residual current transformers, ground current transformers or leakage current transformers. They are usually used in power fire protection equipment. When the power system generates zero-sequence grounding current, it is used in conjunction with the relay protection device for pre-protection Or monitor. The basic principle of the zero sequence cur...
Read More
-
Leakage protection can save lives, The installation of this type of inductor must be clear
Jun 18 , 2022
1. Residual current transformer wiring Before installing the residual current transformer, it is necessary to identify the phase line, N line and PE line in the power network. The phase line and the N line should pass through the residual current transformer together as much as possible, and the PE line should not pass through the transformer. In the system software, if the N line does not pass th...
Read More
-
How Xiamen ZTC Technology Minimizes Residual Output in Zero-Phase Current Transformers for Reliable Leakage Protection
May 15 , 2026
In leakage protection systems, most manufacturers focus on trip sensitivity. Professional engineers know the real challenge is not simply detecting leakage current. The real challenge is preventing false residual output under normal operating conditions. This is where many low-cost zero-phase current transformers (ZCTs) fail. For high-sensitivity protection systems such as GFCI, RCD, RCCB, and EV ...
Read More
IPv6 network supported
English
français
русский
español
português
العربية
हिंदी
