Iec 61850 Quality Expander Qualexp - ABB RES670 Applications Manual

1MRK 511 407-UEN C
19.3.3
Phasor measurement unit RES670 2.2 IEC
Application manual
analog and binary data correlation in disturbance recordings without blocking
protection functions if PPS is lost.

IEC 61850 quality expander QUALEXP

The quality expander component is used to display the detailed quality of an
IEC/UCA 61850-9-2LE analog channel. The component expands the channel
quality output of a Merging Unit analog channel received in the IED as per the IEC
61850-7-3 standard. This component can be used during the ACT monitoring to get
the particular channel quality of the Merging Unit.
Figure 109 depicts the usage of the quality expander block in ACT.
IEC16000073 V1 EN-US
Figure 109: Quality expander block in ACT
The expanded quality bits are visible on the outputs as per IEC 61850-7-3 standard.
When written to IED, the configuration will show the expanded form of the
respective MU channel quality information during the online monitoring in the
ACT.
The quality expander function is intended for monitoring purposes,
not for being used in a logic controlling the behaviour of the
protection or control functions in the IED. The function outputs are
updated once every second and, therefore, do not reflect the quality
bits in real time.
Section 19
Station communication
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IEC16000073-1-en.vsdx
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