Most technicians are very familiar with the GFCI sensor for ground fault current detection.The detection principle is as follows: In a three-phase system, a chip-type RCMU (leakage current monitoring unit) is placed on the bus. The most important thing is that all three buses pass through the middle hole of the RCMU randomly. The…
DetailsEmpowering the Future of Mobility with Safe Charging Solutions The rapid rise in new energy vehicles over the past two years has necessitated an equally robust expansion in charging infrastructure. Ensuring the safety of electricity during charging, particularly in preventing leakage currents that can endanger lives and property, is crucial. Residual Current Devices (RCDs) are…
DetailsUnderstanding the Differences Between Current Transformers and Zero Sequence Current Transformers Current transformers (CTs) and zero sequence current transformers (ZSCTs) are essential components in electrical systems, playing critical roles in protection and measurement. Understanding the differences between these two types of transformers is crucial for engineers and technicians working in electrical safety and system design.…
DetailsDC immunity current transformerApplicationsElectronic electricity meterProduct Features 1 S type closed-loop magnetic circuit: low sensitivity to interference sources, usually no shielding requirements. 2 Working principle of electromagnetic conversion, no semiconductor device: High reliability, only few additional circuits are needed 3 Simple assembly with only a few components: low assembly cost, compact design, competitive price 4…
Details1. The basic function of current transformersThe current transformers can convert primary currents with larger values to secondary currents with lower values through a certain transformation ratio, which are used for protection and measurement purposes. For example, a current transformer with a transformation ratio of 400/5 can convert the actual 400A current to 5A current.2.…
DetailsBrief description Principle The main characteristics of RCD are shown in the below picture. Its iron core surrounds all current-carrying conductors of an electrical circuit, and the magnetic flux generated in the magnetic core is related to the arithmetic and current of these conductor currents in an instant; the current flowing in one direction is…
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