v) Set 10 minutes over voltage
Input the passwords first. Press "UP" and "DOWN" button to adjust the value. Then
press the "ENTER" key to finish the setting.
2. Curves interface
Curve interface draws day power curve, X-axis represents time in 1 hour, from the left,
the first is 1:00 to 2:00, and the far right represents the night 22:00. Y-axis represents
the power value, the full scale means rated power, as shown in figure.
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