Function Settings for limit value supervision
Three-phase power and energy
measurement (P, E)
High limit -
Low limit -
High-high limit -
Low-low limit -
Deadband supervision
The deadband supervision function reports the measured value according to integrated
changes over a time period.
GUID-63CA9A0F-24D8-4BA8-A667-88632DF53284 V1 EN
Figure 467: Integral deadband supervision
The deadband value used in the integral calculation is configured with the X deadband
setting. The value represents the percentage of the difference between the maximum and
minimum limit in the units of 0.001 percent x seconds.
The reporting delay of the integral algorithms in seconds is calculated with the formula:
t s
deadband
Y
( )
(max min) /
%
=
− ×
×
1000
100∆
GUID-5381484E-E205-4548-A846-D3519578384B V1 EN (Equation 164)
Example for IA, IB, IC:
A deadband = 2500 (2.5% of the total measuring range of 40)
I_INST_A = I_DB_A = 0.30
If I_INST_A changes to 0.40, the reporting delay is:
Section 8 1MAC059074-MB A
Measurement functions
902 615 series ANSI
Technical Manual
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