SMA SB3.0-1AV-41, Руководство по эксплуатации

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11 Troubleshooting SMA Solar Technology AG
Operating manual SBxx-1AV-41-BE-en-12 94
Location of the ground fault
The example shows a ground fault between the second and third PV module.
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100 V 100 V 100 V 100 V 100 V
V = 200 V
1
V = 300 V
2
Test by Measuring the Insulation Resistance
If the voltage measurement does not provide sufficient evidence of a ground fault, the insulation
resistance measurement can provide more exact results.
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Figure 15: Schematic diagram of the measurement