ABB Relion RES670, Техническое руководство

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forward direction. Similarly, the integration of energy in active reverse, reactive
forward and reactive reverse is done.
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 242: 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 243 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 511 408-UUS A
Section 17
Metering
Phasor measurement unit RES670 2.2 ANSI 605
Technical manual