sepam 20 user manual - Schneider Electric

Metering functions Average current and peak
demand currents
PCRED301005EN - 06/2008
Operation
This function gives:
b the average RMS current for each phase that has been obtained for each
integration interval
b the greatest average RMS current value for each phase that has been obtained
since the last reset.
The values are refreshed after each "integration interval", an interval that may be set
from 5 to 60 mn.
Readout
The measurements may be accessed via:
b the display of a Sepam with advanced UMI by pressing the key
b the display of a PC with the SFT2841 software
b the communication link.
Resetting to zero:
clear
b press the key on the display when a peak demand current is displayed
b via the clear command in the SFT2841 software
b via the communication link (remote control order TC6).
Characteristics
Measurement range 0.1 to 1.5 In (1)
Unit A or kA
Accuracy typically ±1 % (2)
±2 % from 0.3 to 1.5 In
±5 % if < 0.3 In
Display format (3) 3 significant digits
Resolution 0.1 A or 1 digit
Integration interval 5, 10, 15, 30, 60 minutes
(1) In rated current set in the general settings.
(2) at In, in reference conditions (IEC 60255-6).
(3) Display of values: 0.02 to 40 In.
TS/TC equivalence for each protocol
Modbus DNP3 IEC 60870-5-103 IEC 61850
TC Binary Output ASDU, FUN, INF LN.DO.DA
TC6 BO12 - MSTA.RsMax.ctlVal
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