Yueqing Heyi Electric Co., Ltd. was established in 2012. It is a young and flexible manufacturer of current transformers and current sensors.
HEYI is a current transformer producer. Years of hard work to become the OEM and ODM supplier of Siemens, Schneider, Fuji Electric, Softbank, LG, Samsung and other companies. Thanks to a strong R&D and design team and production team.
Super R&D strength, leading the technology of split core current transformer and customized transformer.We will update and iterate the latest products according to market demand every year, and the whole industry is following HEYI.
The company now has two brands of ASCT and HEYI, more than 6 product patents, more than 100 current transformer models, giving customers more choices.
Electromagnetic leakage protection characteristics robust design Analysis of factors affecting the robustness of leakage protection characteristics Influence of compensation capacitance dispersion on the robustness of protection characteristics In order to analyze the influence of the dispersion of compensation capacitor C1 on the leakage action value, equation (2) can be obtained by transforming (4) Then… Continue reading Electromagnetic leakage protection characteristics robust design
An in-depth study of the world of Type B residual current devices (RCDS) Understand RCD concepts The residual current device, commonly referred to as rcd, is the basic safety mechanism in the circuit. When the current of the live conductor at a point in the phase exceeds a predetermined value, they provide protection by… Continue reading Type B residual current devices (RCDS)
influencing factors of electromagnetic leakage protection characteristics 1 Influence of compensation circuit parameters on leakage protection characteristics Leakage protection features include leakage action value IDd and leakage action time td. The action value IDd should be less than the rated leakage action current IDn and greater than the rated leakage action current IDno, generally IDno=… Continue reading influencing factors of electromagnetic leakage protection characteristics
Electromagnetic leakage protection working principle The electromagnetic leakage protector is generally composed of five parts: residual current transformer, leakage detection circuit (signal conditioning circuit and trip drive circuit), magnetic release device, test button and circuit breaker action mechanism, as shown in Figure 1. Fig.1 Schematic diagram of electromagnetic leakage circuit breaker When the… Continue reading Electromagnetic leakage protection working principle
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