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Overview

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, Modbus® and DNP3.

PCM600 and relay connectivity package version

• Protection and Control IED Manager PCM600 2.8 or later

• RET615 Connectivity Package Ver.5.1 or later

• Parameter Setting

• Signal Monitoring

• Event Viewer

• Disturbance Handling

• Application Configuration

• Signal Matrix

• Graphical Display Editor

• Communication Management

• IED User Management

• IED Compare

• Firmware Update

• Fault Record tool

• Load Record Profile

• Lifecycle Traceability

• Configuration Wizard

• AR Sequence Visualizer

• Label Printing

• IEC 61850 Configuration

• IED Configuration Migration

• Differential Characteristics Tool

Description

REU610 is a voltage protection relay for system voltage

protection, measuring and supervising in utility and industrial

power systems. REU610 is a member of ABB’s Relion®

protection and control product family and part of its 610

product series. The 610 series includes protection relays for

feeder protection, motor protection and general system voltage

supervision. The plug-in design of the 610 series protection

relays facilitates the commissioning of the switchgear and

enables fast and safe insertion and withdrawal of relay plug-in units.

The protection relay is primarily designed for the overvoltage

protection of power system components, such as busbars,

feeders, power transformers and capacitor batteries. It is also

used for the general power system earth-fault supervision.

Further, the protection relay can be used for undervoltage

protection of motors and overvoltage protection of capacitor

batteries, for initialization of automatic busbar changeover and

disconnecting small power units from the network in case of a

major network disturbance. The 610 series protection relays

are suitable for employment in marine and offshore environments.

The numerical voltage protection relays of the 610 series

support a wide range of standard communication protocols,

among them the IEC 61850, IEC 60870-5-103, DNP3, Modbus,

Profibus, LON and SPA communication protocols.

Application

The REJ603 is a protection relay aimed at selective short-circuit and earth-fault protection

of feeders in secondary distribution networks and for protection of transformers in utilities and industries.

The inrush current stabilization function allows the relay to be used as main protection of

distribution transformers.

The relay is powered up through current transformer if current is above energizing level of

relay, front USB power or through auxiliary supply (optional feature).

The relay offers, non-directional over current and earth-fault protection. 

The residual current for the earth-fault protection is derived from the phase currents. 

When applicable,the corebalance current transformers can be used for measuring the residual current,

especially when sensitive earth-fault protection is required.

The relay additionally offers thermal overload protection for feeders, cables and transformers.

There is optional provision of remote trip through binary input with external auxiliary power supply.

The remote trip signals like transformer trouble output (Buchholz, Oil temperature,

Winding temperature trip) or an external trip can be wired

to binary input. The remote trip function works even in CT-powered mode when auxiliary supply

is not available but enough CT current is available to power-up the relay.

Measurement

The relay continuously measures phase currents and earth current. Earth current can be

measured using external core balance current transformer or can be calculated internally.

The relay has provision to display measured three phase current and earth current in primary

and secondary terms. Additionally, relay displays status of binary input, binary output and trip

counter for over current and earth fault trip.

During service, the default view of display shows three phase current and the earth current in

secondary terms. The values measured can be accessed using on the local HMI.

Description

REJ603 is a self-powered feeder protection

relay, intended for the protection of utility substations and industrial power systems, in secondary

distribution networks. REJ603 is a member of ABB’s Relion® product family and part of its 605 series.

The feeder protection relay REJ603 is designed to be a part of Ring Main Units (RMU) and secondary distribution switchgears.

The REJ603 relay is a self-powered numerical relay, which receives power from the main current transformers.

This way REJ603 is an ideal choice for installations where an auxiliary supplies are not available and hence is suitable

for unmanned distribution substations having no auxiliary supplies.

Relay has add-on optional function of remote trip through binary input with selection of auxiliary power version.

Relay functions

The relay provides an optimized composition of protection and monitoring functionality in one unit,

with the best performance usability in its class and are based on ABB’s in-depth knowledge of protection and numerical technology.

REJ603 offers pre-configured functionality which facilitates easy and fast commissioning of switchgear.

To emphasize the simplicity of relay’s usage, only application specific parameters needs to set within the relay’s intended area of application.

The relay also has short power up time which ensures fast operation during switch on to fault.

REF601/REJ601 and REM601 are members of ABB’s Relion® protection and control product family and its 605 series.

These relays provide an optimised composition of protection, monitoring and control functionality in one unit,

with the best performance and usability in its class.

The relay REF601/REJ601 offers various application configurations for Feeder protection and control while 

REM601 offers application configurations for Motor protection and control.

Protection and control

REF601/REJ601 offer three-stage overcurrent and two-stage ground fault protection functions.

The low-set stages for overcurrent and ground fault protection are equipped with selectable characteristics

– Definite Time (DT) and Inverse Definite Minimum Time (IDMT).

The relay features standard IDMT characteristics according IEC 61255-3 – Normal Inverse, Very Inverse,

Extremely Inverse, Long-time Inverse.

They also feature characteristics according to ANSI C37.112 – Moderate Inverse, Normal Inverse, Very Inverse, Extremely Inverse.

The relay has a special

characteristic RI Inverse (RI) for better coordination with the rest of the network.

Additionally the relays also support two setting groups.

Thermal overload protection for feeder, cable and transformer,

negative phase sequence protection phase discontinuity protection and circuit breaker failure protection are also offered.

An auto-reclose function for overhead line feeders is optional.

The REM601 offers protections for motors such as thermal overload protection,

short circuit protection, startup supervision, loss-of-phase protection, negative phase sequence protection,

ground fault protection, undercurrent protection and circuit breaker failure protection.

An emergency restart feature allows motor start up even when start inhibit is activated.

The residual current for CT configured relays is derived from the phase currents.