Section 7 1MAC309294-MB F
Measurement functions
388 RER620
Technical Manual
Figure 208: 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 * seconds.
The reporting delay of the integral algorithms in seconds is calculated with the formula:
(Equation 43)
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:
ts
deadband
Y
()
(max min) /
%
=
−×
×
1000
100Δ
ts s()
() /
.. %
=
−×
−×
=
40 0 2500 1000
0 40 0 30 100
10