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Section 6
Wide area measurement system
6.2.3.1
116
MU
U
SMAI
TRM
I
U
TRM
I
I/P
MIM
SMMI
BIM
OR
PROTECTION
GPS /
IRIG-B
UP
PPS time data
UV
IEC140000146 V2 EN-US
Figure 42:
Overview of reporting functionality (PMUREPORT)
The TRM modules are individually AC-calibrated in the factory. The calibration data is
stored in the prepared area of the TRM EEProm. The pre-processor block is extended
with calibration compensation and a new angle reference method based on timestamps.
The AI3P output of the preprocessor block is used to provide the required information
for each respective PMUREPORT phasor channel. More information about
preprocessor block is available in the section Signal matrix for analog inputs SMAI.
Frequency reporting
By using patented algorithm the IED can track the power system frequency in quite
wide range from 9 Hz to 95 Hz. In order to do that, the three-phase voltage signal shall
be connected to the IED. Then IED can adapt its filtering algorithm in order to properly
measure phasors of all current and voltage signals connected to the IED. This feature is
essential for proper operation of the PMUREPORT function or for protection during
generator start-up and shut-down procedure.
Generator protection REG670 2.2 ANSI and Injection equipment REX060, REX061, REX062
U/I samples
PMUREPORT1
PHASOR1
PHASOR2
PHASOR32
ANALOG1
ANALOG2
ANALOG24
MEAS.
BINARY1
BINARY2
BINARY24
OP
FREQTRIG
DFDTTRIG
OC
MAGHIGHTRIG
MAGLOWTRIG
1MRK 502 071-UUS A
8 TCP
IEEEC37.118 / 1344
NUM
messages
6 UDC
IEC140000146-1-en.vsd
GUID-4F3BA7C7-8C9B-4266-9F72-AFB139E9DC21 v2
Application manual
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