Zero Clamping
Detection
P
Q
Maximum Power
Demand Calculation
Energy Accumulation
Calculation
STARTACC
STOPACC
RSTDMD
MAXPAFD
MAXPARD
MAXPRFD
MAXPRRD
EAFALM
EARALM
ERFALM
ERRALM
EAFACC
EARACC
ERFACC
ERRACC
ACCINPRG
EAFPULSE
EARPULSE
ERFPULSE
ERRPULSE
RSTACC
IEC13000185-2-en.vsd
IEC13000185 V2 EN-US
Figure 328:
ETPMMTR Functional overview logical diagram
The integration of energy values is enabled by the setting
EnaAcc
and controlled by
the
STARTACC
and
STOPACC
inputs. If the integration is in progress, the output
ACCINPRG
is high. Otherwise, it is low. Figure
ACCINPRG
output.
ACCINPRG
is active when the
STARTACC
input is active and
the
EnaAcc
setting is enabled. When the
RSTACC
input is in the active state, the
output
ACCINPRG
is low even if the integration of energy is enabled.
ACCINPRG
is deactivated by activating the
STOPACC
input.
T
F
STARTACC
ACCINPRG
RSTACC
³
1
q
-1
STOPACC
&
FALSE
&
EnaAcc
IEC13000186-4-en.vsd
q
-1
= unit delay
IEC13000186 V4 EN-US
Figure 329:
ACCINPRG Logic diagram
The accumulated energy values (in MWh and MVArh) are available as service
values and also as pulsed output depending on the
ExxAccPlsQty
setting, which can
be connected to a pulse counter. Accumulated energy outputs are available for
forward as well as reverse direction. The accumulated energy values can be reset to
initial accumulated energy values (
ExxPrestVal
) from the local HMI reset menu or
with the input signal
RSTACC
shows the logic for integration of energy
in active forward direction. Similarly, the integration of energy in active reverse,
reactive forward and reactive reverse is done.
Section 15
1MRK 506 382-UEN A
Metering
650
Line distance protection REL650 2.2 IEC
Technical manual
Summary of Contents for RELION 650 SERIES
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