Category: Industry Trends

Functional scalability and flexible configurability make the

Relion® 630 series of relays from ABB ideal for demanding power

distribution applications.

630 series

Flexibility for demanding utility and industrial power distribution systems

The 630 protection and control series of relays is a member of ABB’s

Relion® product family. The 630 series relays are characterized by their

functional scalability and flexible configurability.

Flexible adaptation to application-specific requirements

The 630 series relays can be used in either single

or double-busbar applications with one or two

breakers and numerous switching devices.

They also support a substantial number of both

manually and motor-operated disconnectors and

earthing switches. Consequently, the 630 series

relays can be used to control various types of switchgear.

The 630 series relays offer predefined

configurations, designed to match the most

typical protection and control requirements for

fast and easy setup. The pre-configurations

can be used as such or easily tailored to meet

application-specific requirements – with

freely selectable functions – using the

IEC 61850-compliant Protection and Control

IED Manager PCM600.

Product features

• Generator differential protection, 3rd harmonic based stator earth-fault protection,

reverse power protection and extensive interconnection protection for distributed generation

• Optional RTD/mA module to be used for various protection and monitoring purposes in generator

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

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

Scope

• REG630 has been designed to be the main protection for generator and generator-transformer units

Scope

• REG630 has been designed to be the main protection for generator and generator-transformer units

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

• Generator differential protection, 3rd harmonic based stator earth-fault protection,

reverse power protection and extensive interconnection protection for distributed generation

• Optional RTD/mA module to be used for various protection and monitoring purposes in generator 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

Flexibility and high functionality for generator protection and control applications

Not active product since 2024

REG630 is a comprehensive generator management relay for the protection, control,

measurement and supervision of small and medium sized power generators and 

generator-transformer units in utility and power distribution systems.

REG630 is a member of ABB’s Relion® family and part of its 630 protection and control product series.

Scope

• REG630 has been designed to be the main protection for generator and generator-transformer units

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

DNP3 supports both serial and TCP modes for the connection

of up to five masters. Changing the active setting and reading

fault records are supported. DNP serial and DNP TCP can be

used in parallel. If required, both IEC 61850 and DNP can be run

simultaneously.

The relay supports Profibus DPV1 with support of SPA-ZC 302

Profibus adapter. If Profibus is required, the relay must be

ordered with Modbus serial options. Modbus implementation

includes SPA protocol emulation functionality. This functionality

enables connection to SPA-ZC 302.

When the relay uses the RS-485 bus for the serial

communication, both two- and four-wire connections are

supported. Termination and pull-up/down resistors can be

configured with DIP switch on the communication card so that

external resistors are not needed.

The relay can be connected to Ethernet-based communication

systems in a station bus using the RJ-45 connector (100Base

TX) or the multimode fiber optic LC connector (100Base-FX). A

dedicated protection communication port uses a pluggable

multimode or single-mode fiber optic LC connector (100Base

FX). If connection to a serial bus is required, the RS-485 or

fiber-optic serial communication ports can be used.

Modbus implementation supports RTU, ASCII and TCP modes.

Besides standard Modbus functionality, the relay supports

retrieval of time-stamped events, changing the active setting

group and uploading of the latest fault records. If a Modbus

TCP connection is used, five clients can be connected to the

relay simultaneously. Further, Modbus serial and Modbus TCP

can be used in parallel, and, if required, both IEC 61850 and

Modbus can be run simultaneously.

HSR applies the PRP principle of parallel operation to a single

ring. For each message sent, the node sends two frames, one

through each port. Both frames circulate in opposite directions

over the ring. Every node forwards the frames it receives from

one port to another to reach the next node. When the

originating sender node receives the frame it sent, the sender

node discards the frame to avoid loops. The HSR ring supports

the connection of up to 30 relays. If more than 30 relays are to

be connected, it is recommended to split the network into

several rings to guarantee the performance for real-time

applications.

When the relay uses the RS-485 bus for the serial

communication, both two- and four-wire connections are

supported. Termination and pull-up/down resistors can be

configured with DIP switch on the communication card so that

external resistors are not needed.

The IEC 61850 standard specifies network redundancy which

improves the system availability for the substation

communication. The network redundancy is based on two

complementary protocols defined in the IEC 62439-3 standard:

PRP and HSR protocols. Both protocols are able to overcome a

failure of a link or switch with a zero switchover time. In both

protocols, each network node has two identical Ethernet ports

dedicated for one network connection.

The protocols rely on the duplication of all transmitted

information and provide a zero switchover time if the links or

switches fail, thus fulfilling all the stringent real-time

requirements of substation automation.

In PRP, each network node is attached to two independent

networks operated in parallel. The networks are completely

separated to ensure failure independence and can have

different topologies. As the networks operate in parallel, they

provide zero-time recovery and continuous checking of

redundancy to avoid failures.

Relays with process bus based applications use IEEE 1588

edition 2 for high-accuracy time synchronization.

For redundant Ethernet communication in station bus, the relay

offers either two optical or two galvanic Ethernet network

interfaces. An optional third port with optical or galvanic

Ethernet network interface is also available. The relay also

provides an optional fiber-optic port for dedicated protection

communication which can be used for up to 50 km distances

depending on the selected fiber transceiver. The intended

teleprotection applications for this port are line differential and

line distance protection communication or binary signal

transfer. The optional third Ethernet interface provides

connectivity for any other Ethernet device to an IEC 61850

station bus inside a switchgear bay, for example connection of

a remote I/O. Ethernet network redundancy can be achieved

using the high-availability seamless redundancy (HSR) protocol

or the parallel redundancy protocol (PRP), or with a self-healing

ring using RSTP in the managed switches. Ethernet

redundancy can be applied to the Ethernet-based IEC 61850.

Modbus and DNP3 protocols.

The relay also supports IEC 61850 process bus concept by

sending and receiving sampled values of currents and voltages.

With this functionality the galvanic interpanel wiring can be

replaced with Ethernet communication. The analog values are

transferred as sampled values using the IEC 61850-9-2 LE

protocol. REX640 supports publishing of one and subscribing

of four sampled value streams. The intended application for

sampled values are current-based differential protection

functions or sharing the voltage values with the relays that have

voltage-based protection or supervision functions. The relay

can receive up to four sampled value streams and totally 16

measurements can be connected into the protection relay

application.

In PRP, each network node is attached to two independent

networks operated in parallel. The networks are completely

separated to ensure failure independence and can have

different topologies. As the networks operate in parallel, they

provide zero-time recovery and continuous checking of

redundancy to avoid failures.