DC combiner box
A technology of DC confluence and confluence busbars, applied in photovoltaic power generation, photovoltaic modules, automatic disconnection emergency protection devices, etc., can solve the problems of inaccurate data, inconvenient installation of combiner boxes, etc., achieve fewer line connection points, reduce product The failure rate and the effect of fewer wires
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Embodiment 1
[0022] Such as figure 1 The shown DC combiner box includes a box body in which a positive electrode confluence branch, a negative electrode confluence branch, a monitoring device 6 and a lightning protection device 2 are arranged. Among them, the positive confluence branch is sequentially connected with the positive terminal, the positive fuse 301, the positive confluence busbar 8, the positive terminal of the circuit breaker 1 and the positive terminal; the negative confluence branch is connected with the negative terminal and the current sensor 5 in sequence. , Negative pole fuse 302, negative pole bus bar 7, negative terminal and negative terminal of circuit breaker 1. Among them, the positive input terminal and the negative input terminal are used to connect the positive input cable and the negative input cable respectively, and the positive output terminal and the negative output terminal are used to connect external devices (such as inverters, etc.).
[0023] When actua...
Embodiment 2
[0031] This embodiment proposes a DC combiner box whose composition is the same as that of the DC combiner box in Embodiment 1 of the combiner box. The positive terminal, the current sensor, the positive fuse, the positive busbar, the positive terminal of the circuit breaker, and the positive outgoing terminal are sequentially connected to the confluence branch; the negative terminal, the negative fuse and the negative confluence are connected to the negative confluence branch in sequence Busbar, circuit breaker negative terminal and negative terminal.
[0032] Since the working principle of the DC combiner box in this embodiment is the same as the DC combiner box in the first embodiment of the combiner box, and the introduction of the working principle of the DC combiner box in the first embodiment of the combiner box is complete enough, this embodiment will not repeat.
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