Fuses have been blowing on the school’s solar sytem.<\/p>\n
Advice from a solar electrical expert in Sydney:<\/p>\n
I presume the fuse is between the battery and the inverter.
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\nA 15 amp fuse between solar modules will not blow as the module current is limited.
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\nA 600 watt inverter at 24 Volts requires a 25 Amp fuse at maximum power.
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\nEither the inverter is fully loaded with an under rated fuse, or if not fully loaded then there is an inverter fault.
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\nDisconnect all loads from the inverter output and see if the fuse blows.
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\nIf the fuse blows without loads then there is an inverter fault.
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\nIf the fuse does not blow then progressively re-connect loads until the fuse blows due to a faulty computer or too many computers and\/or other loads.
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\nComputer power supplies are switch mode and on start up they present a capacitive load to the inverter.
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\nThe initial inrush current may be overloading the 15 Amp inverter fuse.
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\nThe inverter instructions should specify a maximum fuse rating.<\/p><\/blockquote>\n","protected":false},"excerpt":{"rendered":"Fuses have been blowing on the school’s solar sytem. Advice from a solar electrical expert in Sydney: I presume the fuse is between the battery and the inverter. \u00a0 A 15 amp fuse between solar modules will not blow as…<\/p>\n