1. Description
RET615 is a dedicated transformer protection and control relay
for power transformers, unit and step-up transformers including
power generator-transformer blocks in utility and industry
power distribution systems. RET615 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 interoperability between substation
automation devices. Once the standard configuration relay has
been given the application-specific settings, it can directly be
put into service.
The 615 series relays support a range of communication
protocols including IEC 61850 with Edition 2 support, process
bus according to IEC 61850-9-2 LE, IEC 60870-5-103,
Modbus
®
and DNP3. Profibus DPV1 communication protocol is
supported by using the protocol converter SPA-ZC 302.
2. Standard configurations
RET615 is available with eight alternative standard
configurations. The standard signal configuration can be
altered by means of the signal matrix or the graphical
application functionality of the Protection and Control IED
Manager PCM600. Further, the application configuration
functionality of PCM600 supports the creation of multi-layer
logic functions utilizing various logical elements including timers
and flip-flops. By combining protection functions with logic
function blocks the relay configuration can be adapted to user
specific application requirements.
The relay is delivered from the factory with default connections
described in the functional diagrams for binary inputs, binary
outputs, function-to-function connections and alarm LEDs.
Some of the supported functions in RET615 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 functions is towards the
outgoing feeder.
Transformer Protection and Control
1MRS756891 M
Product version: 5.0 FP1 Issued: 2018-12-20
Revision: M
ABB 3
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