Functional Diagrams; Functional Diagrams For Protection - ABB REU615 Applications Manual

Section 3
REU615 standard configurations
3.4.3
3.4.3.1
32
Table 12: Default analog channel selection and text settings
Channel Selection and text
1 Uo
2 U1
3 U2
4 U3
5 U1B
6 -
7 -
8 -
9 -
10 -
11 -
12 -
Additionally, all the digital inputs that are connected by default are also enabled
with the setting. Default triggering settings are selected depending on the
connected input signal type. Typically all protection START signals are selected to
trigger the disturbance recorded by default.

Functional diagrams

The functional diagrams describe the default input, output, alarm LED and function-
to-function connections. The default connections can be viewed and changed with
PCM600 according to the application requirements, if necessary.
The analog channels, measurements from voltage transformers, have fixed
connections towards the different function blocks inside the IED's standard
configuration. Exceptions from this rule are the eight analog channels available for
the disturbance recorder function. These channels are freely selectable and a part of
the disturbance recorder's parameter settings.
The analog channels are assigned to different functions. The common signal
marked with 3U represents the three phase voltages. The signal marked with Uo
represents the measured residual voltage via open-delta connected voltage
transformers.

Functional diagrams for protection

The functional diagrams describe the IED's protection functionality in detail and
picture the factory set default connections.
1MRS757054 A
REU615
Application Manual