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Protection and control

The REF615 is the most powerful, advanced and sim

plest feeder protection relay in its class, perfectly of

fering time and instantaneous overcurrent, negative

sequence overcurrent, phase discontinuity, breaker

failure, thermal overload, and voltage metering and

protection. The relay also features optional high im

pedance fault (HIZ) protection for grounded and un

grounded distribution systems. Also, the relay incor

porates a flexible three-phase multi-shot auto-reclose

function for automatic feeder restoration in tempo

rary faults on overhead lines.

Enhanced with safety options, the relay offers a

three-channel arc-fault detection system for supervi

sion of the switchgear.

The REF615 also integrates basic control functionality,

which facilitates the control of one circuit breaker via

the relay’s front panel human machine interface (HMI)

or remote control system. To protect the relay from

unauthorized access and to maintain the integrity of

information, the relay has been provided with a four

level, role-based user authentication system, with in

dividual passwords for the viewer, operator, engineer,

and administrator levels. The access control system

applies to the front panel HMI, embedded web

browser based HMI, and the PCM600 relay setting and

configuration tool.

Analog inputs

− Three phase currents: 5/1 A programmable

− Ground current: 5/1 A programmable or 0.2 A

− Rated frequency: 60/50 Hz programmable

− Three-phase and ground voltages: programmable nominal

secondary voltage

Binary inputs and outputs

− Eleven binary inputs standard

− Seven programmable outputs

− Three outputs configurable to NO or NC standard. One con

figurable output if HSO option is selected.

− One Form C self-check alarm output

− High-speed outputs (HSO) optional

Communication

− IEC 61850-8-1 with GOOSE messaging

− DNP3.0 Level 2+ over TCP/IP

− Modbus over TCP/IP

− Time synchronization via SNTP (primary and backup servers)

− Optional serial RS-485 port programmable for DNP3.0 Level

2+ or Modbus RTU

− Optional IRIG-B time synchronization

fast peer-to-peer communication

Bus protection via GOOSE

The IEC 61850 implementation in REF615R includes

fast peer-to-peer communication, over the substation bus.

Use GOOSE communication between REF615R IEDs of the

incoming and outgoing feeders of a substation to form a stable,

reliable, and high-speed busbar protection system. The cost-ef

fective GOOSE-based busbar protection is obtained by config

uring the IEDs and the operational availability of the protection

is assured by continuous supervision of the protection IEDs

and their GOOSE messaging over the station bus. No separate

hard-wiring is needed for the horizontal communication between

the switchgear cubicles.

Pre-emptive condition monitoring

For continuous knowledge of the operational availability of the

REF615R features, a comprehensive set of monitoring func

tions to supervise the relay health, the trip circuit, and the circuit

breaker health is included. The breaker monitoring can include

checking the wear and tear of the circuit breaker, the spring

charging time of the breaker operating mechanism and the gas

pressure of the breaker chambers. The relay also monitors the

breaker travel time and the number of circuit breaker operations

to provide basic information for scheduling breaker mainte nance.

Control voltage

− Option 1: 48 … 250 V dc, 48 … 240 V ac

− Option 2: 24 … 60 V dc

Product dimensions and weights

− Product Dimensions:  19.00” (482.60 mm) W x 5.22” (132.59

mm) H x 9.08” (230.66 mm) D

− Product Weight:  11.9 lb (5.4 kg)

Standardized communication

As a standard feature, REF615R supports the IEC 61850

standard for inter-device communication in substations along

with the industry standards DNP 3.0 and Modbus protocols.

The implementation of the IEC 61850 substation communi

cation standard in REF615R encompasses both vertical and

horizontal communication, including GOOSE messaging and

parameter setting according to IEC 61850-8-1. The substation

configuration language enables the use of engineering tools for

automated configuration, commissioning, and maintenance of

substation devices.

The REF615R integrates basic control functionality, which

facilitates the control of one circuit breaker via the relay’s front

panel human machine interface (HMI) or remote control system.

To protect the relay from unauthorized access and to maintain

the integrity of information, the relay has been provided with a

four-level, role-based user authentication system, with individual

passwords for the viewer, operator, engineer, and administra

tor levels

Protection and control

The REF615R is the most powerful, advanced and simplest

feeder protection relay in its class, offering time and instanta

neous overcurrent, negative sequence overcurrent,

phase discontinuity, breaker failure, thermal overload, and volt

age metering and protection. The relay features optional high

impedance fault (HIZ) and sensitive earth fault (SEF) protection

for grounded and ungrounded distribution systems. The relay

incorporates a flexible three-phase multi-shot auto-reclose

function for automatic feeder restoration in temporary faults on

overhead lines.

Enhanced with safety options, the relay offers a three-channel

arc-fault detection system for supervision of the switchgear as

an option.

The REF615R integrates basic control functionality, which

facilitates the control of one circuit breaker via the relay’s front

panel human machine interface (HMI) or remote control system.

The REF615R is a dedicated feeder IED perfectly aligned

for the protection, control, measurement, and supervi

sion of utility substations and industrial power systems.

The REF615R is designed for users looking for a 19” rack

mount form of ABB’s Relion® REF615. The REF615R utilizes

the same form and fit as the DPU2000R relay and provides

exact wire-alike matching rear terminals. This wire-alike

feature makes the REF615R the ideal solution for upgrad

ing to the industry’s latest technologies. The REF615R is

a member of ABB’s Relion family and part of its 615 pro

tection and control product series. The 615 series IEDs

are characterized by their compact, 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 of substa

tion automation devices while providing Modbus® and DNP

simultaneously in one standard configuration.

Application

The REF615R provides main protection for overhead lines,

cable feeders, and busbar systems of distribution substations.

It can be applied for protection and control of grounded and

ungrounded distribution systems.

One configuration tailored to meet and exceed these DPU2000R

ANSI and IEC configurations:

− Standard:  587R… (ANSI); 687R…(IEC)

− Synch Check:  587C…(ANSI); 687C…(IEC)

− SEF:  587E…(ANSI); 687E…(IEC)

The REF615R is a dedicated feeder IED perfectly aligned

for the protection, control, measurement, and supervi

sion of utility substations and industrial power systems.

The REF615R is designed for users looking for a 19” rack

mount form of ABB’s Relion® REF615. The REF615R utilizes

the same form and fit as the DPU2000R relay and provides

exact wire-alike matching rear terminals. This wire-alike

feature makes the REF615R the ideal solution for upgrad

ing to the industry’s latest technologies.

Unique REF615R features

− Four major ease of replacement benefits for ANSI and IEC

DPU2000R users:

− Same form and fit eliminates panel cutting or rack repositioning

− Wire-alike I/O and CT/VT connections greatly reduce

drawing modification time

− Comparable protection and control plus more included

− Near SCADA-alike for DNP3.0 points & Modbus registers

− Six setting groups

− Drawout design

− Underground, overhead cable fault detection (CFD) – optional

− High-speed (< 1 ms) outputs – optional

− Field selectable 1A or 5A CT inputs

− Advanced user programmable function blocks

− 16 programmable pushbuttons

− High impedance (HIZ) fault detection – optional

− Arc flash detection (AFD) – optional

− Thermal overload protection of feeder cable

− Ring-lug terminals for all inputs and outputs

− Large, customizable, easy to read LCD screen

− Environmentally friendly design with RoHS compliance

− Web browser based HMI

− PCM600 Software Tool – tools for basic IEC61850 configura

tion are included at no additional charge in PCM600

S800 I/O is a comprehensive, distributed and modular process I/O system

that communicates with parent controllers over industry-standard field buses.

Thanks to its broad connectivity it fits a wide range

of process controllers from ABB and other vendors.

By permitting installation in the field, close to sensors and

actuators, S800 I/O reduces the installation cost by reducing

the cost of cabling. And thanks to features such as “hot swap”

of modules, “on-line” reconfiguration and redundancy options,

it contributes to keeping production – and thereby profits – up.

For updated information regarding S800 hardware please

visit our Hardware Selector. In the selector you can compare

different communication modules, S800 IO modules, module

termination units, AC 800M controllers, power supplies and

voters, panels and also print your own pdf files.