T
F
T
F
T
F
X
60.0
q
-1
0.0
q
-1
&
RSTACC
EAFPrestVal
ACCINPRG
P* (ACTIVE FORWARD)
EAFACC
a>b
a
b
1000 GWh
q
-1
= unit delay
IEC13000187-5-en.vsdx
IEC13000187 V5 EN-US
Figure 330:
Logic for integration of active forward energy
The energy pulses generated by using internally calculated accumulated energy
values and energy per pulse (
ExxAccPlsQty
) setting. The accumulated energy
values are divided by the energy-per-pulse value to get the number of pulses. The
number of pulses can be reset to zero by activating
RSTACC
input or by using the
local HMI reset menu. The pulse on and off time duration is set by the settings
tEnergyOnPls
and
tEnergyOffPls
. Figure
shows the logic for pulse output
generation for the integrated energy in the active forward direction. Similarly, the
pulse generation for integrated energy in the active reverse, reactive forward and
reactive reverse is done.
1MRK 506 382-UEN A
Section 15
Metering
Line distance protection REL650 2.2 IEC
651
Technical manual
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