ABB REX610 Relion Protection and Control Relay

ABB REX610 Relion Protection and Control Relay Suppliers,Exporters in India

ARP IMPEX supplies and exports ABB REX610 Relion protection and control relays from India for switchgear panels, substations, industrial plants, utilities and electrical distribution projects. We handle requirements for new installations, panel manufacturing, relay replacement, switchgear upgrades and export supply.

ABB REX610 is a configurable numerical relay made for basic medium-voltage power distribution applications. It brings feeder protection, motor protection, voltage and frequency protection, arc-flash protection, circuit-breaker control, measurement and fault recording into one relay platform.

The relay is mainly used where the project needs dependable protection without the larger hardware and application capacity of REX615 or REX640. The modular design also reduces the number of relay variants that panel builders and maintenance teams need to keep in stock.

ABB REX610 Models and Hardware Variants

REX610 is a single configurable product family. It is not divided into fixed models such as REF, REM or REU. ABB supplies the relay with different analogue input arrangements according to the application.

ABB REX610 Current Input Version

The current-based version is used where protection is mainly based on CT measurements.

Typical applications include:

• Non-directional feeder protection
• Overcurrent protection
• Earth-fault protection
• Distribution transformer backup protection
• Motor protection
• Cable protection
• Circuit-breaker failure protection
• Current measurement and fault recording

This version supports up to four conventional current inputs.

ABB REX610 Current and Voltage Input Version

This version combines CT and VT inputs and is selected when the scheme requires both current-based and voltage-based protection.

Typical applications include:

• Directional overcurrent protection
• Directional earth-fault protection
• Feeder protection
• Voltage and frequency protection
• Power and energy measurement
• Synchronism and energising checks
• Motor protection
• Auto-reclosing
• Utility and industrial incomer panels

Depending on the ordered hardware, it supports up to four current inputs and four voltage inputs.

ABB REX610 Voltage Input Version

The voltage-based version is used for voltage supervision and frequency protection where current inputs are not required.

Typical requirements include:

• Undervoltage protection
• Overvoltage protection
• Residual overvoltage protection
• Positive-sequence undervoltage protection
• Negative-sequence overvoltage protection
• Frequency protection
• Rate-of-change-of-frequency protection
• Synchronism and energising checks

ABB’s REX610 hardware arrangements cover current, current-and-voltage, and voltage-based applications. Each arrangement has six binary inputs and six binary outputs as standard.

ABB REX610 Protection Functions

The functions available in the relay depend on the selected analogue modules and the configuration prepared in ABB PCM600.

Feeder and Overcurrent Protection

ABB REX610 covers commonly required feeder and cable protection functions, including:

• Three-phase non-directional overcurrent protection
• Low-set, high-set and instantaneous overcurrent stages
• Directional overcurrent protection
• Non-directional earth-fault protection
• Directional earth-fault protection
• Negative-sequence overcurrent protection
• Phase discontinuity protection
• Loss-of-phase and undercurrent protection
• Thermal overload protection for feeders and cables
• Inrush current detection
• Circuit-breaker failure protection
• Master trip functions

These functions make REX610 suitable for incoming and outgoing feeder panels in basic utility and industrial distribution systems.

Motor Protection

REX610 also covers the main protection functions required for medium-voltage induction motors.

Motor protection functions include:

• Motor thermal overload protection
• Motor start-up supervision
• Motor load-jam protection
• Locked-rotor supervision
• Loss-of-load supervision
• Negative-sequence overcurrent protection
• Phase-reversal protection
• Phase discontinuity protection
• Emergency motor starting
• Motor running-time monitoring

For an ABB REX610 motor protection relay quotation, share the motor power, rated current, starting current, starting time, CT ratio and auxiliary supply voltage.

REX610 is intended for basic motor protection. Applications requiring motor differential protection, RTD-based temperature monitoring or more extensive machine protection may require ABB REX615 or REX640 instead.

Voltage and Frequency Protection

For panels equipped with voltage inputs, REX610 supports:

• Three-phase undervoltage protection
• Three-phase overvoltage protection
• Residual overvoltage protection
• Positive-sequence undervoltage protection
• Negative-sequence overvoltage protection
• Underfrequency protection
• Overfrequency protection
• Rate-of-change-of-frequency protection
• Synchronism check
• Energising check
• Fuse-failure supervision

These functions are commonly used in incomer panels, bus-coupler panels, industrial distribution boards and basic utility interconnection schemes.

Arc-Flash Protection

ABB REX610 can be ordered with an optional arc-protection module. The module supports up to three lens-type arc sensors for monitoring switchgear compartments.

The sensors can be placed in areas such as:

• Busbar compartment
• Circuit-breaker compartment
  Cable termination compartment

Arc protection uses the light detected by the sensor together with current-based conditions in the relay configuration. This allows fast operation during an internal arc fault.

The arc sensor interface is optional and must be confirmed while preparing the REX610 order code.

Control, Monitoring and Recording Functions

ABB REX610 is not limited to fault protection. It also handles several control and monitoring requirements inside a switchgear panel.

Available functions include:

• Circuit-breaker opening and closing control
• Circuit-breaker position indication
• Disconnector position indication
• Earthing-switch position indication
• Auto-reclosing
• Synchronism and energising check
• Trip-circuit supervision
• Current-circuit supervision
• Fuse-failure supervision
• Circuit-breaker condition monitoring
• Machine and device running-time counters
• Ten programmable alarm LEDs
• Fault recording
• Event recording
• Disturbance recording

The disturbance recorder handles up to eight analogue channels and 32 binary channels. Recorded fault data can be retrieved for trip analysis and maintenance checks.

Technical Specifications

• Brand: ABB
• Product family: Relion
• Model: REX610
• Product type: Numerical protection and control relay
• Applications: Basic utility and industrial power distribution
• System standards: IEC and ANSI applications
• Rated system frequency: 50 or 60 Hz
• Current inputs: Up to four conventional CT inputs
• Voltage inputs: Up to four conventional VT inputs
• Voltage input range: Up to 57–250 V AC, depending on the module
• Binary inputs: Six
• Binary outputs: Six
• Arc sensor inputs: Up to three with the optional arc module
• Auxiliary supply: 48–240 V AC or 24–250 V DC
• Local interface: Graphical local HMI with programmable LEDs
• Front connection: Micro-USB port
• Configuration software: ABB PCM600
• Communication ports: Ethernet RJ45 and serial RS-485 options
• Mounting: Flush-mounted case with withdrawable plug-in unit
• Front protection: IP54
• Approximate frame size: 150 mm wide × 160 mm high
• Approximate depth: 203 mm
• Complete relay weight: Up to approximately 2.5 kg

The actual specification depends on the complete relay order code and installed modules. Always check the ABB order code before using REX610 as a replacement for an existing relay.

Communication Options

REX610 can be connected to a substation automation system, SCADA system or local engineering computer.

Communication options include:

• IEC 61850-8-1 MMS
• IEC 61850 GOOSE messaging
• Modbus TCP
• Modbus RTU
• IEC 60870-5-103
• Ethernet communication through the rear RJ45 port
• Serial communication through RS-485
• Front USB connection for local access
• SNTP time synchronisation

The required protocol and communication module should be stated when requesting an ABB REX610 protection relay price.

Features

• Feeder, motor, voltage and arc protection on one relay platform
• Small number of hardware variants
• Modular current, voltage and communication inputs
• Six binary inputs and six binary outputs
• Withdrawable plug-in relay design
• Current-only, voltage-only and combined current-and-voltage configurations
• Circuit-breaker control and condition monitoring
• Directional and non-directional protection functions
• Integrated fault and disturbance recording
• IEC 61850 communication
• GOOSE messaging for interlocking and fast signal exchange
• Modbus communication for industrial systems
• Front USB port for local access
• Relay configuration through ABB PCM600
• Optional arc-flash sensor module
• Modules can be replaced without changing the complete relay
• Suitable for new panels and selected relay retrofit requirements

The front USB port also allows access to relay information and disturbance records. Limited USB-based powering is available when the station auxiliary supply is unavailable.

Applications

ABB Relion REX610 is used for:

• Incoming feeder protection
• Outgoing feeder protection
• Cable feeder protection
• Overhead feeder protection
• Distribution transformer backup protection
• Medium-voltage motor protection
• Overcurrent and earth-fault protection
• Directional feeder protection
• Voltage and frequency protection
• Bus-coupler panels
• Circuit-breaker control
• Auto-reclosing schemes
• Arc-flash protection
• Industrial power distribution
• Utility secondary substations
• Medium-voltage switchgear
• Ring distribution systems
• Power distribution panels
• Switchgear retrofit projects
• Selected SPACOM relay replacement requirements

Industries using ABB REX610 relays include cement, steel, mining, oil and gas, water treatment, infrastructure, manufacturing, utilities, renewable power projects and captive power plants.

ABB SPACOM Replacement with REX610

ABB offers a retrofit programme for replacing selected SPACOM protection relays with REX610. The retrofit arrangement may include a replacement relay, panel adapter, documentation and a configuration template.

The adapter is designed to reduce panel modification work and retain the existing switchgear for a longer period. However, not every SPACOM relay can be replaced with the same REX610 configuration.

ABB’s retrofit programme covers selected SPACOM relays and provides predefined accessories for supported replacement applications.

Buyers looking for an ABB REX610 supplier and exporter in India can contact us for pricing, availability, replacement checks and export supply.