Description; Standard Configurations - ABB REF615 ANSI 5.0 FP1 Product Manual

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REF615 ANSI 5.0 FP1
Feeder protection & control

1. Description

REF615 is a dedicated feeder protection and con-
trol relay designed for the protection, control, mea-
surement and supervision of utility substations
and industrial power systems including radial,
looped and meshed distribution networks with
or without distributed power generation. REF615 is
a member of ABB's Relion® product family and part
of its 615 protection and control product series.
The 615 series relays are characterized by their
compactness and withdrawable-unit design.
Re-engineered from the ground up, the 615 series
has been designed to unleash the full potential of
the IEC 61850 standard for communication and in-
teroperability between substation automation de-
vices.
The relay provides main protection for overhead
lines and cable feeders in distribution networks.
The relay is also used as backup protection in appli-
cations, where an independent and redundant pro-
tection system is required.
Depending on the chosen standard configuration,
the relay is adapted for the protection of overhead
line and cable feeders in isolated neutral, resis-
tance grounded, compensated and solidly
grounded networks. Once the standard configura-
tion relay has been given the application-specific
settings, it can directly be put into service.
The 615 series relays support a range of communi-
cation protocols including IEC 61850 with Edition 2
support, process bus according to IEC 61850-9-2
LE, Modbus® and DNP3.

2. Standard configurations

REF615 is available in five alternative standard
configurations. The standard signal configuration
can be altered by means of the signal matrix or the
graphical application functionality of the Protec-
tion and Control Relay Manager PCM600. Further,
the application configuration functionality of
PCM600 supports the creation of multi-layer logic
functions using various logical elements, including
timers and flip-flops. By combining protection
functions with logic function blocks, the relay con-
figuration can be adapted to userspecific applica-
tion requirements.
The relay is delivered from the factory with default
connections described in the functional diagrams
for binary inputs, binary outputs, function-to-func-
tion connections and alarm LEDs. Some of the sup-
ported functions in REF615 must be added with the
Application Configuration tool to be available in the
Signal Matrix tool and in the relay. The positive
measuring direction of directional protection func-
tions is towards the outgoing feeder.
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