DC Surge protective device,protect against lightning surge voltages in solar system (photovoltaic power supply system). These units must be installed in parallel on the DC networks to be protected and provide common and different modes protection. Its installed location are recommended at both ends of the DC power supply line (solar panel side and incerter/converter side), especially if the line routing is external and long. High energy MOVs equipped with specific thermal disconnectors and related failure indicators.
In modern power systems, the use of direct current (DC) power supplies is becoming increasingly popular, especially in areas such as renewable energy and electric vehicles. With the widespread use of DC power supplies, the risk of overvoltage faced by electrical equipment has also increased. Therefore, DC surge protective devices (SPDs) have become an important tool for […]
Maximum discharge current Imax The maximum discharge current Imax is defined according to the estimated exposure level relative to the building’s location. The value of the maximum discharge current (Imax) is determined by a risk analysis (see table in Figure 1). Fig. 1 – Recommended maximum discharge current Imax according to the exposure level Exposure […]
1. Check whether the solar panelsare damaged or not, and find and replace them in time.2. Check whether the connection wires and ground wires of the solar panelsare in good contact.3. Check whether there is any heat phenomenon at the wiring of the combiner boxes.4. Check whether the battery board bracket is loose or broken.5. Check and […]
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