Siemens SIMEAS R-PMU Manual page 269

Gradient trigger for analog signals:
The gradient trigger condition for AC values is met when the difference between two
fundamental component rms values averaged over the averaging time t
parameterized threshold at the interval of the filter time. With DDAUs, the average values are
compared at the interval of the filter time. The averaging time t
parameterized recording rate of 1 to 5 nominal cycles.
Binary trigger:
State changes at the binary DAU inputs can be parameterized as trigger conditions. Thus, a
recording can be started when a transducer changes into the alarm state or leaves the alarm
state or at any state change.
Cross trigger:
If the cross trigger for the TPR is activated, a recording of the TPR is started when the TAR
is triggered. The history and recording time of the parameterization correspond to the TPR.
Manual trigger / External trigger:
The manual triggering can be started via the manual trigger on the control panel or via
OSCOP P. For a manual trigger, SIMEAS R-PMU does not send a network trigger signal. An
external start of fault recording via a binary input of the SIMEAS R-PMU is possible.
Network trigger:
If there are several SIMEAS R-PMU located in a LAN sub-network, the triggered device can
send UDP broadcast telegrams to other SIMEAS R-PMU devices via the network and start
a recording of the transient phasor recorder there. The sub-network is determined via the IP
address and the subnet mask of the SIMEAS R-PMU.
Trigger values of the DAUs
Table 18-13
VCDAU
V , V , V
L N
dV /dt, dV
L N
dV/dt
V , V , V
1 2
f, df/dt
I , I , I
L N
dI /dt, dI /dt
L N
I , I , I
1 2 0
P , Q , P, Q
Σ Σ
dP /dt, dQ
Σ Σ
dP/dt, dQ/dt
B
Note: Recorded values in {...} are applicable for coupled CDAUs. The current inputs of the
CDAU are coupled to a voltage group, e. g., a VDAU or VCDAU, for power measurement
Digital Fault Recorder, SIMEAS R-PMU, Manual
E50417-H1076-C360-A5, Release 10.2012
Trigger values of the DAUs
VDAU
V , V , V
L N
/dt, dV /dt, dV /dt,
L N
dV/dt
V , V , V
0 1 2 0
f, df/dt
/dt
B
corresponds to the
m
CDAU DDAU
I , I , I
L N
dI /dt, dI /dt
L N
I , I , I
1 2 0
{P , Q , P, Q}
Σ Σ
{dP /dt, dQ /dt}
Σ Σ
{dP/dt, dQ/dt}
D
dD/dt
B B
18
18.3 Recording Functions
is larger than the
m
BDAU
B
.
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