Siemens SIMEAS R - Page 269

18
18.3 Recording Functions
269Digital Fault Recorder, SIMEAS R-PMU, Manual
E50417-H1076-C360-A5, Release 10.2012
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
m
is larger than the
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
m
corresponds to the
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
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
.
Table 18-13 Trigger values of the DAUs
VCDAU VDAU CDAU DDAU BDAU
V
L
, V
N
, V
dV
L
/dt, dV
N
/dt,
dV
/dt
V
1
, V
2
, V
0
f, df/dt
I
L
, I
N
, I
dI
L
/dt, dI
N
/dt
I
1
, I
2
, I
0
P
Σ
, Q
Σ
, P, Q
dP
Σ
/dt, dQ
Σ
/dt
dP/dt, dQ/dt
B
V
L
, V
N
, V
dV
L
/dt, dV
N
/dt,
dV
/dt
V
1
, V
2
, V
0
f, df/dt
B
I
L
, I
N
, I
dI
L
/dt, dI
N
/dt
I
1
, I
2
, I
0
{P
Σ
, Q
Σ
, P, Q}
{dP
Σ
/dt, dQ
Σ
/dt}
{dP/dt, dQ/dt}
B
D
dD/dt
BB