Distributed overvoltage protection system for movable type photovoltaic power station low voltage ride-through testing apparatus
A low-voltage ride-through, photovoltaic power station technology, applied in emergency protection circuit devices, circuit devices, emergency protection circuit devices for limiting overcurrent/overvoltage, etc. Power outage accidents and other problems, to achieve the effect of preventing overvoltage damage and eliminating overvoltage
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[0025] Embodiment The design of the overvoltage protection system is carried out for the low voltage ride through test device of the 35kV-1.5MW photovoltaic power station, and the configuration electrical positions of all arrester protection systems are as follows Figure 4 shown. The specific design and configuration are as follows:
[0026] 1. Lightning protection system for incoming and outgoing lines of the system
[0027] The whole low-voltage ride-through test device is mainly composed of a current-limiting reactor, a short-circuit reactor and a switch cabinet. The single-line diagram of the primary electrical system is shown in figure 1 shown. The lightning protection system for incoming and outgoing lines of the system mainly includes two parts: the system incoming lightning arrester group F1 and the system outgoing lightning arrester group F2. figure 2 shown. The two sets of arrester groups are assembled and combined with multiple single arresters to realize the ...
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