MCS301 - 3ph meter Page 83 of 142
MCS301 meter - product Manual 1.25 MetCom Solutions GmbH
16.2 Under-/ Overvoltage (sags and swells)
The meter detects the under voltage (sag) and over voltage (swell) in all phases. The
threshold of under voltage is from -5% Vref to -20% Vref by 5V steps and for overvoltage is
from +15% Vref to +5% Vref by 5V steps. The threshold values of under voltage and over
voltage are stored in the following COSEM objects and can be set/adjust locally or remotely.
•
Threshold for Under Voltage (sags) (1-0:12.31.0.255);
•
Threshold for Over Voltage (swells) (1-0:12.35.0.255);
The under/over voltage will not be recorded unless they continue for equal or greater than
the time set for under voltage and overvoltage threshold. This time is adjustable by the
following parameters:
•
Time Threshold for Over Voltage (1-0:12.44.0.255);
•
Time Threshold for Under Voltage (1-0:12.43.0.255);
The time threshold for over voltage is between 1s to 60s and the default value is 15s. The
time threshold for under voltage is between 1s to 180s, default: 60s.
If any under voltage and Over Voltage happens, an event will be logged.
The total number of over/under voltage, the duration of last over/under voltage and
magnitude of last over/under voltage are stored in the dedicated COSEM objects.
•
Number of Under Voltage in Phase L1 (1-0:32.32.0.255);
•
Number of Under Voltage in Phase L2 (1-0:52.32.0.255);
•
Number of Under Voltage in Phase L3 (1-0:72.32.0.255);
•
Duration of Last Under Voltage in Phase L1 (1-0:32.33.0.255);
•
Duration of Last Under Voltage in Phase L2 (1-0:52.33.0.255);
•
Duration of Last Under Voltage in Phase L3 (1-0:72.33.0.255);
•
Magnitude of Last Under Voltage in Phase L1 (1-0:32.34.0.255);
•
Magnitude of Last Under Voltage in Phase L2 (1-0:52.34.0.255);
•
Magnitude of Last Under Voltage in Phase L3 (1-0:72.34.0.255);
•
Number of Over Voltage in Phase L1 (1-0:32.36.0.255);
•
Number of Over Voltage in Phase L2 (1-0:52.36.0.255);
•
Number of Over Voltage in Phase L3 (1-0:72.36.0.255);
•
Duration of Last Over Voltage in Phase L1 (1-0:32.37.0.255);
•
Duration of Last Over Voltage in Phase L2 (1-0:52.37.0.255);
•
Duration of Last Over Voltage in Phase L3 (1-0:72.37.0.255);
•
Magnitude of Last Over Voltage in Phase L1 (1-0:32.38.0.255);
•
Magnitude of Last Over Voltage in Phase L2 (1-0:52.38.0.255);
•
Magnitude of Last Over Voltage in Phase L3 (1-0:72.38.0.255);
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