12 dc connect the red wire to pv and the black wire to pv or battery minus. This device is connected in parallel on the power supply circuit of the loads that it has to protect see fig.
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Dc spd connection diagram. Dc systems measure from positive and negative input. Both leds in the spd should glow blue as a sign that voltage is present in system spd is connected correctly and working and the system is protected. Measure l n l g l l and n g of the ac system. Dc spd for solar dcdb. China surge protector device surge arrester spd surge protection dc1000v dc 500v find details about china surge protector device dc spd from surge protector device surge arrester spd surge protection dc1000v dc 500v xinchi electric co ltd. Ovr type 2 and type 23 are designed to protect electric installations and sensitive equipment against indirect surges with ensuring a low protection level up.
Dc spd for ongrid inverter. The surge protection device spd is a component of the electrical installation protection system. J17it can also be used at all levels of the power supply network. Out load as shown in fig. Rooftop solar dc spd. Pv combiners get installed as shown in figure 11 5.
Connection leads should be cut to minimum possible length. 600vdc spd for solar power plants. It is characterized by its capacity to safely discharge current with 820 µs wave form. Confirm that the spd is correctly rated for the system to which it is to be connected to. Solar spd for gridtie inverters. Never coil or push aside excess length.
Solar type 2 spd. Apply voltage to spd.