Current sensor technology in Korean IoT gateway   As a key hub connecting physical devices and cloud platforms, the Korean IoT gateway plays a core role in the construction of smart cities, industrial IoT and consumer applications in Korea. Its development integrates technologies such as 5G communications, edge computing, and multi-protocol compatibility, and combines the […]

Current status of Saudi charging pile market   Infrastructure construction stage As of 2024, Saudi Arabia will only have about 101 charging stations deployed nationwide, mainly concentrated in major cities such as Riyadh and Jeddah, but the charging network coverage is insufficient, and there are almost no charging facilities on highways and remote areas. The […]

How charging pile construction promotes carbon neutrality in Europe？     European Electric Vehicle Charging Station Market Increasing technological advancements in charging stations, including smart charging, and the integration of ultra-fast charging stations capable of providing 350 kW charging speeds are strengthening the industrial landscape. The continued and exponential adoption of AI-driven smart charging services, […]

How Development of new energy charging piles in Türkiye?   In recent years, Turkey has become an active participant in the global transition to sustainable transportation. The construction of electric vehicle (EV) charging infrastructure is key to this transition. With the increasing emphasis on reducing carbon emissions and promoting clean energy, Turkey is vigorously promoting […]

Charging pile Type B leakage current sensor The Type B leakage current sensor in the charging pile is mainly used to detect leakage current in the AC system. In electric vehicle charging stations or charging piles, this sensor is one of the important components to ensure safe charging.       The characteristic of Type […]

Why choose Type B sensor for leakage protection of European standard AC charging pile？     1.Residual current is more complicated and prevention is more urgent Residual current monitoring and its popularization can be traced back to around 1990. The earliest was Type AC, and now Type B residual current monitoring has been gradually adopted […]

Products needed for energy construction in Saudi Arabia The Kingdom has launched a total of about 22 renewable energy projects, including 13 new projects in the renewable energy sector currently under development. The total capacity of these 13 new projects is expected to reach 11.4 GW, with a total investment of about 34 billion Saudi […]

What Sensors and DC Shunts at the Heyi 2025 Russia exhibition? In 2025, Wenzhou Heyi Electric participated in the Russian Energy Exhibition. At this exhibition, we saw the vast market prospects of Russia. Russia is promoting the development of new energy vehicles. In the past few years, Russia’s electric vehicle market has undergone significant changes. […]

How do switchgear designers choose the appropriate zero-sequence current transformer?   The switch cabinet is equipped with a zero-sequence current transformer (applicable to 0.38~66kV). Its characteristics are analyzed and how to choose a suitable zero-sequence current transformer is discussed in order to achieve the best use effect.     1 Overview In medium voltage power […]

How to select the main technical parameters of current transformers – ratio and accuracy   Current transformer is a unique transformer designed to convert high current into standard low current. It plays a key role in meters, measuring instruments and relays, not only expanding the measurement range of meters, but also helping to improve the […]

Operation and maintenance of current transformers   Overload operation of current transformer The current transformer can work for a long time at 1.1 times the rated current, but long-term overload operation will affect the measurement accuracy. Due to the increase in magnetic flux density and the saturation of the core, the core will heat up, […]

What other application scenarios are there for transformers?   Instrument transformers, an electronic device, play a vital role in the power system. It is not only used to connect the meter for power measurement, but also plays a key role in many aspects. Instrument transformers are mainly divided into two categories: voltage transformers and current […]