To choose the best technology for surge protective devices, we should consider the following technical parameters (include but not limited to):
1. Type of surge protective devices according to EN61643-11/IEC 61643-11
2. Nominal Voltage (Un)
3. Maximum Continuous Operating Voltage (Uc) /Maximum Continuous Operating Voltage for PV System (Ucpv)
4. Voltage Protection Level (Up)
5. Nominal Discharge Current (In)
6. Maximum Discharge Current (Imax)
Overvoltage may occur in electrical installations for various reasons. It may be caused by: 1. The distribution network as a result of lightning or any work carried out. 2. Lightning strikes (nearby or on buildings and PV installations, or on lightning conductors). 3. Variations in the electrical field due to lightning. Like all outdoor structures, […]
DC MCB (DC miniature circuit breaker) plays a key role in the power system. First of all, DC MCB is a common switch in the control circuit, which mainly has two functions: on-off circuit and protection circuit. It adopts a special arc extinguishing and current limiting system, which can quickly disconnect the fault current of the […]
MC4 Solar Connector is the name of the connection type on all new solar panels, providing an IP67 waterproof and dust proof safe electrical connection. MC4 Solar Connector will not connect with older MC3 type Connector. The MC4 Solar Connector work best with 4mm and 6mm solar cable. The picture above shows all the parts […]
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