EV Charging Protection RCM Residual Current Monitor
The growth of the new energy vehicle market is inseparable from the construction of basic charging facilities. How to ensure the safety of electricity used in the charging process, especially to prevent the leakage current from harming life and property, is a problem worthy of attention.
As a leakage protector, the residual current protector is widely used in low-voltage power distribution systems to prevent electric shock accidents, electrical equipment leakage damage and electrical fires. Also in the field of electric vehicle charging, RCD is also widely used as a basic electrical protection device.
What is type A or type B residual current protector? China’s Residual Current Protection Device (RCD) Guiding Standard GB/Z 6829-2008 (IEC/TR 60755:2008, MOD) “General Requirements for Residual Current Action Protector” from the basic structure of the product, residual current type, trip Methods and other aspects have been divided.
According to the type of residual current, RCD can be divided into AC type, A type, and B type. AC type residual current protector: RCD that ensures tripping of residual sinusoidal AC current that is suddenly applied or slowly rising. Type A residual current protector: It includes AC type characteristics and superimposes 6mA of pulsating DC residual current and pulsating DC residual current to smooth the residual current to ensure tripping RCD.
Type B residual current protector: includes type A protection features, in addition, it can superimpose the sine AC residual current of 1000 Hz and below, the AC residual current superimposed smooth DC residual current, the pulsating DC residual current superimposed smooth residual current, two-phase or more The pulsating DC residual current and smooth DC residual current generated by the phase rectifier circuit ensure the tripped RCD.
In the foreseeable future, as new energy vehicles enter thousands of households, charging piles will become an indispensable part of people’s lives. Therefore, the replacement of the residual current protector in the charging pile is very necessary, and only safe use Only the electric environment can let everyone enjoy the convenience brought by new energy vehicles.
IVY offers MD0630T01A for monitoring and/or providing shock protection and fault protection on AC and DC installations and for EV charging applications. MD0630T01A is a RCD sensor specifically developed for EV-charging providing all-current sensitivity. The sensor can issues alarm signal in case of hazardous electrical faults (DC and AC). It has the characteristics of accurate measurement, small size and integration. The RCD sensor can be set separately for AC and DC leakage and has a digital output function. Which can also be called leakage current sensor, residual current monitor (RCM), residual current device (RCD), differential current sensor, leakage current detector and fault current sensor etc. The MD0630T01A can monitor DC (6mA) and AC (30mA) residual currents, it is connected in series with the AC supply to an EV and will provide a signal output if a DC current ≥ 6mA DC flows in the circuit. In addition, our delivery time is also guaranteed.
