Numerical Relay ABB

Feeder protection and control ABB REF601 numerical relay Entry-level numerical relay for distribution networks REF601 is a dedicated feeder protection and control relay intended for the protection and control of utility and industrial power systems in primary and secondary distribution networks. The relay provides an optimized composition of protection, monitoring and control functionality in one unit, with the best performance and usability in its class. Besides the conventional current transformer interface based variant, the relay also supports a variant based on Rogowski current sensors analog interface. This helps to obtain a compact medium voltage switchgear equipment size reduction with improved performance and standardization.

Scope

Main protection for overhead lines and cable feeders in solidly earthed, resistance-earthed or isolated networks Inrush current stabilization function for distribution transformers

Product benefits

• Compact, flexible and simple to handle
• Speedy commissioning through selective test function for protection functions, binary signals and communication features
• Easily configurable binary inputs and outputs
• Extensive self-supervision of the relay hardware and software
• Enhanced safety with usage of sensors variant / detachable terminals with CT shorting facility
• Press fit mounting arrangement facilitates easy and fast installation

Product features

• Overcurrent, earth-fault, phase-discontinuity, negative-phase sequence and thermal-overload protections, inrush current detection, circuit-breaker control, reclosing and measurement
• Preconfigured functionality facilitates easy and fast commissioning
• Universal power supply 24-265 V AC/DC
• Configurable binary inputs/outputs using local HMI or communication interface
• Specific variant with site selectable CT selection (1 or 5A), Boolean logic and timers
• Site selectable Modbus and IEC 60870-5-103 protocols

ABB Numerical relays

ABB Numerical relays are based on the use of microprocessors. A big difference between conventional electromechanical and static relays is how the relays are wired. Electromechanical and static relays have fixed wiring and the setting is manual. Numeric relays, on the other hand, are programmable relays where the characteristics and behavior can be programmed. Most numerical relays are also multifunctional.

Scope

• Modern protection relays
• Multifunctional protection

Product benefits

• Provide continuity of power to consuments
• Protection of network assets
• Protection against life-threatening electrical incidents

Product features

• Self-checking facility
• Low burden relays improve accuracy
• Fast fiber optical communication with substation LAN
• Adaptive relaying schemes
• Permit storage of historical data
• Time stamping

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REM630 is a comprehensive motor management relay for the protection, control, measurement and supervision of medium and large sized asynchronous and synchronous motors in the manufacturing industry.

Scope

• REM630 has been designed to be the main protection for both asynchronous and synchronous motors and their drives

Product benefits

• Freely configurable functionality to meet application-specific requirements
• Extensive functionality and scalable hardware for the most demanding applications
• All-in-one solution with integration of protection, control, monitoring and supervision in one relay
• Large integrated or detached HMI with user configurable push buttons, making it easy to use
• Extensive life-cycle services

Product features

• Motor differential protection, thermal overload protection, motor start-up supervision and frequency protection
• Optional RTD/mA module to be used for various protection and monitoring purposes in motor applications
• 8 RTD/mA inputs and 4 mA outputs
• Supports native IEC 61850 Edition 1, including GOOSE messaging for less wiring and supervised communication
• Supports DNP3 (TCP/IP) and IEC 60870-5-103 communication protocols

Self-powered feeder protection REJ603
Entry level protection in secondary distribution networks
REJ603 is designed for selective short-circuit and earth-fault protection of feeders in secondary distribution networks and for protection of small transformers in utilities and industries. REJ603 is a current-transformer-powered numerical feeder protection relay designed for applications where auxiliary power is not available or cannot be guaranteed, thereby making it an ideal choice for installation at remote locations. The relay is primarily used in ring main units and secondary distribution switchgear within distribution networks. Relay variants 1.5 and 3.0 support special and conventional current transformers respectively.

Scope
Overcurrent and earth fault protection
Product benefits

• High suitability of operation with low-energy trip coils
• Built-in hand-reset electromechanical flag
• Powering through front USB port eliminates the need for a built-in battery and also enables access to events/fault information when CT power is not available
• Speedy commissioning through selective test function for protection functions and binary output contacts including test trip to circuit breaker
• Fault analysis with event log/disturbance record facility (3.0 variant)
• Extensive self-supervision of relay hardware and software

 
Key features

• Used in cable or transformer feeders in solidly earthed, resistance-earthed or isolated networks where auxiliary power is not available or cannot be guaranteed
• Non-directional overcurrent, earth-fault protections, thermal overload protection, inrush current detection, remote trip and measurements
• Low-energy trip output and bi-stable outputs to trip circuit breaker
• Disturbance and event records downloadable from front USB port, also used for communication with relay to desktop or laptop PC or power bank; functions available through USB powering-up relay in absence of current input (3.0 variant)
• Designed for Ring Main Unit (RMU) and compact switchgear

RET630 is a comprehensive transformer management relay for the protection, control, measurement and supervision of power transformers, including step-up transformers, and power generator-transformer units in utility and industrial power distribution systems. RET630 is also ideal for transformer bay control.

Scope

• RET630 has been designed to be the main protection and offer full protection for two-winding power transformers

Product benefits

• Freely configurable functionality to meet application specific requirements
• Extensive functionality and scalable hardware for the most demanding applications
• All-in-one solution with integration of protection, control, monitoring and supervision in one relay
• Large integrated or detached HMI with user configurable push buttons, making it easy to use
• Extensive life-cycle services

Product features

• Transformer differential protection, thermal overload protection, voltage protection, and hot spot and aging rate monitoring
• Optional automatic voltage regulation of power transformers with a motor driven on-load tap-changer
• 8 RTD/mA inputs and 4 mA outputs
• Supports native IEC 61850 Edition 1, including GOOSE messaging for less wiring and supervised communication
• Supports DNP3 (TCP/IP) and IEC 60870-5-103

REU611 is designed for overvoltage and undervoltage protection, sequence protection, residual overvoltage and additional two-stage frequency protection of large-size power stations or small power units. The voltage protection relay is used for a wide variety of applications, including busbar, power transformer, motor and capacitor bank applications.

Scope

• Voltage protection relay

Product benefits

• Pre-configured functions for voltage protection application
• The relays are delivered preconfigured and factory-tested to shorten engineering and commissioning time
• Self-healing communication based on HSR/PRP using an optional second Ethernet bus
• The compact design makes it suitable for both new and retrofit installations
• Withdrawable plug-in unit design for swift installation and testing

Product features

• Pre-configured voltage-based protection unit for utility distribution and industrial applications
• Powerful and user-friendly web-browser-based human machine interface (HMI) including input/output (I/O) matrix with visual selections
• Application-specific standard configurations resulting in a shorter relay setup and commissioning time
• Supports IEC 61850 Editions 1 and 2, including binary GOOSE messaging
• Pre-configured solutions for utility distribution and industrial applications

Feeder protection and control REF620 IEC
Compact protection and control for a wide variety of feeder applications
REF620 is a dedicated feeder management relay for protection, control, measurement and supervision in utility and industrial power distribution systems, including radial, looped and meshed networks, with or without distributed power generation.

Compact and versatile feeder protection relay solution with integration of protection, control, monitoring and supervision in one relay.

Scope
Protection for medium voltage substation incoming and outgoing feeders
Key benefits

Extensive protection and control functionality, either with sensors or conventional instrument transformers
Functional scalability and extensive possibilities to easily tailor configurations to application-specific requirements
Withdrawable plug-in unit design for swift installation and testing
Large graphical display for showing customizable SLDs, accessible either locally or through an easy-to-use web-browser-based HMI
Extensive life-cycle services
Key features

• Wide range of protection and control functionality for incoming and outgoing feeders
• Extensive earth-fault protection portfolio with unique multifrequency admittance-based protection for higher sensitivity and selectivity
• Several optional functionality packages – advanced and fast fault location of short circuits and earth faults, interconnection protection for distributed power generation, capacitor bank, basic motor and arc protection
• Supports native IEC 61850 Editions 1 and 2, including redundancy HSR and PRP, GOOSE messaging and IEC 61850-9-2 LE for less wiring and supervised communication
• Supports Modbus, DNP3 and IEC 60870-5-103 communication protocols and for different time synchronization methods, including high-accuracy time synchronization via IEEE 1588 V2 Precision Time Protocol