ABB 3
Motor Protection
REM615 ANSI
Product Version 2.0
1MAC251744 -PG Rev. A
Issued: 03.01.2010
1. Description
e REM615 is a dedicated motor protection and
control IED perfectly aligned for the protection,
control, measurement and supervision of asynchronous
motors in manufacturing and process industry.
REM615 is a member of ABB’s Relion® product family
and a part of its 615 protection and control product
series. e 615 series IEDs are characterized by their
compactness and withdrawable design. 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.
Unique REM615 ANSI features
• Four setting groups
• Drawout design
• Normally-closed output for motor contactors
• Dedicated machine-run-time timers
• Loss-of-load supervision
• Arc ash detection (AFD)
• ermal overload protection of motor
• Ring-lug terminals for all inputs and outputs
• Large, easy to read LCD screen
• Environmentally friendly design with RoHS
compliance
Application
e REM615 constitutes main protection
for asynchronous motors and their drives in
manufacturing and process industry. Typically, the
motor IED is used with circuit breaker or contactor
controlled HV motors, and contactor controlled
medium sized and large LV motors in a variety of
drives, such as pumps and conveyors, crushers and
choppers, mixers and agitators, fans, and aerators.
Flexible coding allows for choosing current-only or
current-and-voltage con gurations to best t your
motor application needs.
Protection and control
REM615 o ers all the functionality needed to manage
motor starts and normal drive operations, including
protection and fault clearance in abnormal situations.
e main features of the motor IED include thermal
overload protection, motor start-up time supervision,
locked rotor protection, and protection against
too frequent motor starts. Furthermore, the IED
o ers negative phase sequence current unbalance
protection, motor running stall protection, loss-of-load
supervision, phase-reversal protection, and a provision
to perform a forced emergency start.
REM615 also incorporates non-directional and
directional ground-fault protection, back-up
overcurrent protection, three phase undervoltage
protection, and negative phase sequence overvoltage,
and positive sequence undervoltage protection.
Enhanced with an optional plug-in card, REM615
o ers a fast three-channel arc-fault protection
system for arc ash supervision of the switchgear
compartments.
REM615 also integrates basic control functionality,
which facilitates the control of one circuit breaker
via the front panel HMI or through remote controls.
To protect the IED from unauthorized access and
to maintain the integrity of information, the IED
has been provided with a four-level, role-based, user
authentication system. e access control system
applies to the front panel HMI, the web browser based
HMI, and the PCM600 Protection, and Control IED
Manager.
Standardized communication
REM615 genuinely supports the new IEC 61850
standard for inter-device communication in
substations. It also supports the industry standard
Modbus® protocol, and the well-established DNP3
and IEC 60870-5-103 protocols.For accurate time
stamping, REM615 supports synchronization over
Ethernet using SNTP or over a separate bus using
IRIG-B.
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