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Replacing a 4kW transformer based inverter for a PV system

LittlePlumb
Hi All,

Can anyone assist me please? We installed a 4kW two string PV array in 2011 utilising an inverter which had a transformer and hence galvanic isolation. The inverter has broken and needs replacing, however, inverters these days all seem to be transformerless. Does anyone know where I can purchase a transformer based inverter pls?

Pete
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    Hi Jam. An inverter with galvanic isolation was installed to prevent the possibility of a voltage appearing on the frame of the ground mounted array if the PME Neutral should be lost and if a fault DC to earth manifested itself on the array (seems unlikely but as I recall that was the COP at the time)

    I am guessing that installers replace inverters with transformer-less inverters now, since they seem to be the only inverters available?
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    Hi Jam. An inverter with galvanic isolation was installed to prevent the possibility of a voltage appearing on the frame of the ground mounted array if the PME Neutral should be lost and if a fault DC to earth manifested itself on the array (seems unlikely but as I recall that was the COP at the time)

    I am guessing that installers replace inverters with transformer-less inverters now, since they seem to be the only inverters available?
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