News | | Jan 10,2025
HYCA – Residual current sensor specially designed by HEYI Electric for DC AC charging piles



Introduce
HYCA is a Leakage Protection Residual Current sensor specifically developed for EV-charging providing all-current sensitivity.
Charging of electric vehicles at a standard wall socket or a wall box requires protection devices against DC fault currents to avoid
avoid electric shock. Installed type A residual current circuit-breakers (RCCBs) are unable to identify and deactivate DC fault currents.
Advantages
Saves costly type B RCCD
Volume optimized
Features
Fault current detection according to IEC 62752 or UL 2231
Frequency range DC up to 2 KHz
Variants with pass through opening or with integrated primary conductors
Differential current range 0~300 mA
Standard
1.Meet IEC 62752 mode 2 charging-related residual current test requirements.
2.Meet IEC 62955 mode 3 charging RDC-PD related residual current test requirements.
3.Meet the basic requirements of GB/T 22794 based on the adaptation of DC 6mA test requirements.



--- END ---
Dec 11, 2025
In Egypt, selecting current transformer (CTs) is critical, particularly in Cairo, Alexandria, and Suez, where the power grid experiences frequent fluctuations, high temperatures, and heavy operational loads. If the CTs are unstable or inaccurate, the entire protection system may fail. This article explains in simple terms why switchgear, fuse breakers, and CTs form a “fixed… Continue reading How to Choose the Right Current transformer in Egypt
Dec 10, 2025
Application Analysis of ICT Isolation current transformer in Photovoltaic Systems The article deals in depth with an analysis of the ICT series isolation current transformer plug-in current transformers from the company HEYI Electric, their role within the photovoltaic system, the usage methods, advantages, and practical applications. HEYI Electric’s ICT Isolation current transformer In other words,… Continue reading How Isolation Current Transformer Optimize Accuracy in PV system
Dec 05, 2025
HYB-A1 High-Reliability Outdoor Current Transmitter – Born for Harsh Environments In applications such as energy, industrial automation, and smart power distribution, current transmitters may seem ordinary, but they are indispensable. They don’t attract as much attention as inverters, nor do they have the imposing presence of circuit breakers. However, the safety of system operation and… Continue reading How current transmitter cope with outdoor challenges