cutoff threshold, which is dependent on the performance class. The NT 2600 model is switched off at an absolute residual cur- rent of 130 mA, the NT 4000 model at an absolute residual current of 200 mA and the NT 6000 model at an absolute residual current of 300 mA. The AFI triggers within < 0.2 seconds.
· MPP control
The solar inverter has a rapid MPP control, | EN |
which maintains the MPP point with a very |
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high adaptation efficiency. If surplus power |
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is provided by the PV generator, the solar |
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inverter limits this by shifting the working |
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point of the characteristic curve of the PV |
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generator, so as not to exceed the maxi- |
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mum permissible AC |
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accordance with VDEW. |
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