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18 Over active power demand Total active power demand is higher than alert value
19 Over reactive power demand Total reactive power demand is higher than alert value
20 Over apparent power demand Total apparent power demand is higher than alert value
21 Over-frequency System frequency is higher than alert value
22 Low frequency System frequency is lower than alert value
23 Over-voltage in total harmonic distortion
Total harmonic distortion for voltage is higher than alert
value
24 Over-current in total harmonic distortion
Total harmonic distortion for current is higher than alert
value
25 Phase loss
When the system is unbalanced, voltage is lower than
alert value.
26 Over-DUI DUI value is higher than alert value
27 Over EUI EUI value is higher than alert value
28 Meter reset The power meter is resetting parameters.
29 Phase Sequence Reversal Phase A and C for current are inversely connected
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