What is RCD dc 6mA?
6mA DC RCM (Residual Current Monitor) is nothing new for professional electricians installing EV charging piles in Europe. The device is widely integrated into EV charging piles to detect smooth DC residual current. However, some people may ask why a DC RCM is used in an AC EV charger rather than in a DC EV charger.
What causes DC residual current when charging an electric vehicle?
The following diagram shows the electrical structure of a typical on-board charging system (OBC). The system consists of an input EMI filter, an AC/DC rectifier, a PFC, a DC/DC power converter, and an output EMI filter. During the use of electric vehicles, the vibration and aging of components will inevitably occur, which will lead to the failure of OBC insulation.
RCD composition and operation
The residual-current device is designed with a coil around a wire. Residual current device monitors ground leakage and provides safety protection.
Residual current devices are based on two different technologies. One is electromagnetic and the other is electronic. Both technologies provide excellent performance. Electromagnetic equipment is strong enough to detect very small residual currents and does not require lead grounding. The temporary power outage did not affect them. Electronic devices, on the other hand, are relatively low in strength, so they need ground lead to perform well during power outages.
The application of DC 6mA in AC EV Charger
This 6mA RCD module detects DC currents flowing in an AC system. For example , in electric vehicle charging station,DC currents flowing in an AC system may cause a Type A RCD to be blinded. This RCD module can be used to detect any DC currents level above 6mA and its output can be used to operate a relay or contactor to disconnect the AC supply and prevent blinding of the upstream A type RCD.
According to standard GB/T 187487.1, the leakage protector of the charger should use type B or type A,in addition to the AC leakage protection, but also to pulase DC protection.
The biggest difference between type B and type A is that type B increase the protection of DC leakage. The biggest harm of DC leakage does not lie in the human body, but in potential failure of the original leakage protection devices.
Zencar AC EV Charger Type B AC30mA DC 6mA
In order to meet the needs of most European markets, Zencar has introduced several new chargers with DC 6mA, from IEC61851 to IEC62752. It protects the charger, the car, and the people who use it. The following several chargers are to meet the latest standards IEC62752
| Model | Type |
|---|---|
| Model A | Type A |
| Model B | Type B |
| Model C | Type A |
| Model D | Type B |
| Model E | Type B |
| Model E pro | Type B |
Model E ev charger
Current: 16A/32A
Voltage: 230v/380v
Features:
1.adjustable amp
2.Delayed timer setting
3.Ground detection
Model D ev charger
Current: 16A/32A
Voltage: 230v/380v
Function:
1. Type B RCD(AC 30mA +DC 6mA)
2. adjustable amp
3. electricity storage memory 1 million kwh
4. Repeat timer setting
5. Bluetooth lock function
6. Big screen
Model E Pro ev charger
Current: 16A/32A
Voltage: 230v/380v
Function:
1. Type B RCD(AC 30mA +DC 6mA)
2. adjustable amp
3. electricity storage memory
4. real-time monitoring of charging status
5. Biggest screen
6. App/wifi application
Why Choose Zencar AC ev charger
- Make an appointment , this feature will be important for you any time you want to charge it, when you get home from work and want to make an appointment for the night when your electricity bill is cheapest.
- Save your battery log so you can see how many kilowatt-hours you are using at any time.
- Wait for yourself to use the process to find out, it will be a surprise to have a Zencar AC EV Charger
