January 17, 20233 yr I have noticed that my SPF5000ES Growatt inverter supplied a load of over 10kw for 5 minutes after my wife accidentally switched on the geyser---There was no alarm and the inverter just kept running like normal--Before the 10kw+ there were 6kw been drawn as well. This does not sound normal to me
January 17, 20233 yr 31 minutes ago, zs1ssm said: I have noticed that my SPF5000ES Growatt inverter supplied a load of over 10kw for 5 minutes after my wife accidentally switched on the geyser---There was no alarm and the inverter just kept running like normal--Before the 10kw+ there were 6kw been drawn as well. This does not sound normal to me I will rather check if the readings shown are correct before staying excited about the high power. With 1800W from panels and no grid use the battery would also have had to supply 8200W for this duration.
January 17, 20233 yr It looks like the reported values might be double of the real values. How? That is guesswork. The WiFi module collects and retransmits the data. Either the WiFi module or the Inverter sensors causing this erroneous reading. From experience with the same Inverter, 5500W for a couple of seconds it will do, but at 5600 or higher it's an immediate shutdown.
January 19, 20233 yr Author On 2023/01/17 at 6:45 PM, Scorp007 said: I will rather check if the readings shown are correct before staying excited about the high power. With 1800W from panels and no grid use the battery would also have had to supply 8200W for this duration. I understand that the readings are highbut are the 2x5kwh batteries capable.??
January 19, 20233 yr 47 minutes ago, zs1ssm said: I understand that the readings are highbut are the 2x5kwh batteries capable.?? Even if your batteries in theory could deliver the power, your Inverter is a 5kW unit and would shutdown immediately at around 10% above the maximum rating.
January 19, 20233 yr 12 hours ago, zs1ssm said: I understand that the readings are highbut are the 2x5kwh batteries capable.?? To add what zsde said you have a maximum rating on the battery. As a 5kWh unit it could have a discharge of 0.5C, 1C or even 1.5C. At 48V a 1C would be able to operate at 100AX48V=4800W load. This 2X will be 9600W. Higher loads like 100A are not to be used all the time. The lower amps will provide longer life. Over 100A and the BMS should cut the battery off.
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