Analog Channel Configuration; Operation Principle - ABB RELION REX640 Technical Manual

1MRS759142 C
4.5.2.4
4.5.2.5
REX640
Technical Manual
The function contains a blocking functionality. It is possible to block function outputs,
timer or the function itself.

Analog channel configuration

PHPTUV has one analog group input which must be properly configured.
Table 715: Analog inputs
Input
U3P
See the preprocessing function blocks in this document for the
possible signal sources.
There are a few special conditions which must be noted with the configuration.
Table 716: Special conditions
Condition
U3P connected to real measurements
Improper analog channel configuration causes a validation error if the analog
channels are not completely configured or they do not match with certain settings. For
troubleshooting, check the contents of this chapter and also the preprocessing blocks
in this document. The configuration can be written to the protection relay once the
mismatch is corrected.

Operation principle

The function can be enabled and disabled with the Operation setting. The
corresponding parameter values are "On" and "Off".
The operation of PHPTUV can be described using a module diagram. All the modules
in the diagram are explained in the next sections.
Protection functions
Description
Three-phase voltages
Description
The function can work with one voltage channel
Num of start phases is set to "1 out of
connected if
3" but the other two channels must be fed with high
Start value ). For other
values (considerably above
Num of start phases , all three voltage
values of
channels must be connected.
Section 4
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