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smap1989 avatar image
smap1989 asked

mppt 250 100 unir 4 string

Hola, tengo un mppt 250 /100 TR y quiero instalar 4 string de 4 paneles de 450w. Como puedo unir los string para entrar al mppt? he visto algunos repartidores pero no se si es buena idea por la corriente que pasa por ellos. adjuntare un ejemplo para que lo veais.

https://www.obramat.es/repartidor-bipolar-100a-7p-10553186.html


Saludos

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1 Answer
Mike Dorsett avatar image
Mike Dorsett answered ·

please post details of your panels: Voc, Isc, as these are needed to ensure that strings are combined and compatible wiht the charger. Also your battery voltage .

In general, only 2 strings van be combined in parallel. If you want to connect 3 or more strings in parallel, then each sting will need a series FUSE in order to protect the stings against fault currents. Fuses must be rated at 1.25x string current and suitable for the DC Voltage.

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