Huawei Afci functionality

In a short time, the Huawei Sun2000-100ktl-M1 photovoltaic inverter has been able to attract the Terre Solaire operating team. If we knew it efficient and resistant, a new functionality integrated in its design has managed to make the difference in the field of electrical risk prevention.

When we mention the prevention of risks in Huawei, the IP65 protection is often the first mentioned, offering the resistance of the material to dusty and humid environments. But what about electrical risk prevention?

Since 2020, this electric prevention has not only been present on the Huawei inverter range, but also increased. His little name? AFCI for «interruption of the arch failure circuit» or «Definito Arc switch». We tell you more about this function that could almost make the fear of lightning ridiculous!

Operation of Afci Huawei (Definito Arc predefined circuit switch)

Executive from the fuse, producer Huawei wanted to encourage the use of an intelligent residual current monitoring unit (also called RCMU) for its photovoltaic inverters. This is directly connected to a very reactive anti-Arc switch to form what is called the «Ia Boost Afci» device.

We illustrate this device with an example: imagine a squadron of security agents who make millimeters in search of intruders: this is the surveillance unit! And it is very efficient. Imagine now that during its round, it transmits a real -time relationship to its hierarchy: the switch. As for the intruders sought by this surveillance unit, it is the possible formation of the electric arches. Now you understand the operation of this prevention system!

But let’s go back to our electrons! Once an anomaly is detected, the intelligent surveillance system immediately asks the switch to play the role attributed to it: disjunction! Or, cut the line instantly to stop the circulation of the current in the circuit.

Dept in protection from overvoltage for continuous current and alternating current, this system does not leave any possibility to the potential anomalies thus detected in real time, even before a deterioration of the circuit can be seen. And this is a real guarantee of safety for residential and professional structures!

Afci Huawei: a reliable and effective safety device

Assessed and certified by the CGC (China General Center of Certification), the results of the evaluation of this device allow to meet the rigorous requirements of the UL 1699b-2018, this famous «safety standards for the protection of the circuits against the PV DC». It also exceeds photovoltaic groups (PV) (PV) (PV), Design Requirements (PV) Standard International Standard, currently in force for the design of the electrical safety of photovoltaic generators.

The measurement of its extremely precise detection scope also allows you to stop an almost immediate response time (judged NIV. L4 according to the CGC/GF 175: 2020 standard). Impressive performances, to the point that manufacturer Huawei and the CGC will have jointly decided to publish a technical white paper that details every technical aspect of this technology in order to offer new perspectives to the photovoltaic sector. That is, to say!