This technical breakdown explains the Over-Temperature Protection (OTP) logic in AC EV chargers, a critical safety feature compliant with GB/T 18487 and IEC 61851 standards. The system utilizes a high-frequency 2ms sampling cycle to monitor two key components with differentiated thresholds: Control

In China EV Charging stations will implement energy efficiency standards in November this year, and in the future, ev charging stations will also be labeled with energy efficiency levels like air conditioners.The below form shows the efficiency level of different grade.NAMEGrade 3Grade 2Grade 1effic

Power distribution in a dual-gun DC charging station is achieved by a central controller, which manages power splitting between the two guns using DC contactors to dynamically allocate power based on demand, often enabling full-power single-gun charging or simultaneous, split-power dual-gun charging

How does a DC charging station work?The DC EV charging system consists of three parts: charging station, charging gun, and electric vehicle, as shown in the following figure.1.The three-phase AC power of the main circuit is connected to the rectifier module of the charging station through the AC swi

By November 2026, 90% of charging stations in China may face "elimination". This is not really an exaggeration, but a true countdown to the new national standard. How can pile companies and operators survive in this elimination round, or rather live longer. There is only one answer, first level ener

The Open Charge Point Protocol (OCPP) is an application protocol for communication between Electric vehicle (EV) charging stations and a central management system, also known as a charging station network.NASN developled public electric vehicle/bike/motocycle charger stations with the Open Charge Po