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ABB Relion® Protection and Control REX640 User accounts

The nonvolatile memory does not need battery

backup or regular component exchange to maintain the

memory storage. File transfer and Web HMI use communication

encryption protecting the data in transit.

Also, the communication link between the relay configuration tool

PCM600 and the relay is encrypted. All rear communication

ports and optional protocol services can be activated according

to the required system setup.

User accounts can be managed by PCM600 or centrally. A

central account management is an authentication infrastructure

that offers a secure solution for enforcing access control to

relays and other systems within a substation. This incorporates

management of user accounts, roles and certificates and the

distribution of such, a procedure completely transparent to the

user. The central server handling user accounts can be, for

example, SDM600 or an Active Directory (AD) server such as Windows AD.

ABB Relion® Protection and Control REX640 Access control and cybersecurity

Access control and cybersecurity

Cybersecurity measures are implemented to secure safe

operation of the protection and control functions. The relay

supports these measures with configuration hardening

capabilities, encrypted communication, Ethernet filter and rate

limiter, security event logging and user access control.

The relay supports role-based user authentication and

authorization with individual user accounts as defined in IEC

62351-8. All user activity is logged as security events to an

audit trail in a nonvolatile memory and sent as messages to the

SysLog server. The nonvolatile memory does not need battery

backup or regular component exchange to maintain the

memory storage. File transfer and Web HMI use communication

encryption protecting the data in transit.

ABB Relion® Protection and Control REX640 Self-supervision

Self-supervision

The relay’s built-in self-supervision system continuously

monitors the state of the relay hardware and the operation of

the relay software. Any fault or malfunction detected is used for

alerting the operator.

A permanent relay fault blocks the protection functions to

prevent incorrect operation.

The relay can store the records of the latest 128 fault events.

The records can be used to analyze the power system events.

Each record includes, for example, current, voltage and angle

values and a time stamp. The fault recording can be triggered

by the start or the trip signal of a protection block, or by both.

The available measurement modes include DFT, RMS and

peak-to-peak. Fault records store relay measurement values

when any protection function starts. In addition, the maximum

demand current with time stamp is separately recorded. The

records are stored in the nonvolatile memory.

ABB Relion® Protection and Control REX640 Trip circuit supervision

Trip circuit supervision

The trip circuit supervision continuously monitors the availability

and operability of the trip circuit. It provides open-circuit

monitoring both when the circuit breaker is in closed and in

open position. It also detects loss of circuit-breaker control voltage.

Self-supervision

The relay’s built-in self-supervision system continuously

monitors the state of the relay hardware and the operation of

the relay software. Any fault or malfunction detected is used for

alerting the operator.

A permanent relay fault blocks the protection functions to

prevent incorrect operation.

The load profile recorder stores the historical load data

captured periodically (demand interval). Up to 12 load

quantities can be selected for recording and storing in the

nonvolatile memory. The recordable quantities include

currents, voltages, power and power factor values. The

recording time depends on a settable demand interval

parameter and the amount of quantities selected. The

quantities’ type and amount to be recorded are determined in

the application configuration. The recorded quantities are

stored in the COMTRADE format.

ABB Relion® Protection and Control REX640 Load profile

Load profile

The load profile recorder stores the historical load data

captured periodically (demand interval). Up to 12 load

quantities can be selected for recording and storing in the

nonvolatile memory. The recordable quantities include

currents, voltages, power and power factor values. The

recording time depends on a settable demand interval

parameter and the amount of quantities selected. The

quantities’ type and amount to be recorded are determined in

the application configuration. The recorded quantities are

stored in the COMTRADE format.

Trip circuit supervision

The trip circuit supervision continuously monitors the availability

and operability of the trip circuit. It provides open-circuit

monitoring both when the circuit breaker is in closed and in

open position. It also detects loss of circuit-breaker control voltage.

ABB Relion® Protection and Control REX640 Recorded data

Recorded data

The relay can store the records of the latest 128 fault events.

The records can be used to analyze the power system events.

Each record includes, for example, current, voltage and angle

values and a time stamp. The fault recording can be triggered

by the start or the trip signal of a protection block, or by both.

The available measurement modes include DFT, RMS and

peak-to-peak. Fault records store relay measurement values

when any protection function starts. In addition, the maximum

demand current with time stamp is separately recorded. The

records are stored in the nonvolatile memory.

Load profile

The load profile recorder stores the historical load data

captured periodically (demand interval). Up to 12 load

quantities can be selected for recording and storing in the

nonvolatile memory. The recordable quantities include

currents, voltages, power and power factor values. The

recording time depends on a settable demand interval

parameter and the amount of quantities selected. The

quantities’ type and amount to be recorded are determined in

the application configuration. The recorded quantities are

stored in the COMTRADE format.

ABB Relion® Protection and Control REX640 Event log

Event log

To collect sequence-of-events information, the relay has a

nonvolatile memory capable of storing 1024 events with the

associated time stamps. The event log facilitates detailed pre

and post-fault analyses of feeder faults and disturbances. The

considerable capacity to process and store data and events in

the relay supports the growing information demand of future

network configurations.

The sequence-of-events information can be accessed either via

the LHMI or remotely via the communication interface of the

relay. The information can also be accessed locally or remotely

using the Web HMI.

Self-supervision

The relay’s built-in self-supervision system continuously

monitors the state of the relay hardware and the operation of

the relay software. Any fault or malfunction detected is used for

alerting the operator.

A permanent relay fault blocks the protection functions to

prevent incorrect operation.

ABB’s Excitation Systems Center of Excellence, North America Certifications

Certifications

As part of our commitment to the environment, the Excitation

Systems Center of Excellence for North America is located in a

state-of-the-art building that is Silver LEED certified. The

Center of Excellence is also ISO 9001:2015 certified for design,

project management, manufacturing, testing and servicing,

ISO 14001:2015 certified for environmental standards as well

as ISO 45001:2018 certified for Health and Safety standards

and have been for over 20 years. All Excitation Systems and

products manufactured at our facility undergo rigorous testing and are UL and CSA certified.

The excitation service portfolio is designed to increase your

return on investment and keep your UNITROL®, SYNCHROTACT®

and MEGATROL® products operating at the highest efficiency

and productivity level throughout their respective product life

cycles. Our experienced and dedicated service team is ready to

provide service throughout Canada and the United States.

ABB’s Excitation Systems Center of Excellence, North America Management

Installed Base Management

The excitation service portfolio is designed to increase your

return on investment and keep your UNITROL®, SYNCHROTACT®

and MEGATROL® products operating at the highest efficiency

and productivity level throughout their respective product life

cycles. Our experienced and dedicated service team is ready to

provide service throughout Canada and the United States.

Certifications

As part of our commitment to the environment, the Excitation

Systems Center of Excellence for North America is located in a

state-of-the-art building that is Silver LEED certified. The

Center of Excellence is also ISO 9001:2015 certified for design,

project management, manufacturing, testing and servicing,

ISO 14001:2015 certified for environmental standards as well

as ISO 45001:2018 certified for Health and Safety standards

and have been for over 20 years. All Excitation Systems and

products manufactured at our facility undergo rigorous testing and are UL and CSA certified.

ABB’s Excitation Systems Center of Excellence, North America ABB-certified

ABB-certified expert training

Knowledge is power. ABB offers expert-level trainings by

experienced ABB-certified trainers. These sessions are

specifically focused on maximizing the operating and

maintenance know-how of operators and technical personnel.

Operation and Maintenance training, e-learning, standard or

tailored classroom courses are all offered at one of our

training centers or on-site.

Installed Base Management

The excitation service portfolio is designed to increase your

return on investment and keep your UNITROL®, SYNCHROTACT®

and MEGATROL® products operating at the highest efficiency

and productivity level throughout their respective product life

cycles. Our experienced and dedicated service team is ready to

provide service throughout Canada and the United States.

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