ABB ITU805 HART I/O Module Mounting Base

REF542plus success story

„ Market launch 2000

„ Delivered units approx. 50,000

„ Applications ranging from low voltage to high voltage

„ In service worldwide

„ Many different protection and control functions

Event recording

All events are stored with a resolution of 1 ms in the central unit and in the BUs.

System, protection and test events can be generated.

Protection events refer to the protected busbar and include the changes in the disconnector and breaker positions,

trips, etc. Test events are recorded during testing with the test signal generator.

System events describe the diagnostic and fault messages of the NBP system as a whole.

REM615 is a dedicated motor protection and control relay designed for the protection, control, 

measurement and supervision of induction motors in manufacturing and process industry. 

REM615 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.

Disturbance recorder function

The three conductor currents, the current in the directly earthed conductor,

binary signals, and the voltages, can be recorded in each BU. 

Recording can be started, for example, by a protection function or an input signal. 

The disturbance recorder data are stored in the REB 500. 

They can be read out directly on the BU or at the central unit in COMTRADE format and stored on the PC. 

An evaluation program (eg, WINEVE) is used for further processing.

REF542plus Multifunction Protection and Switchbay Control Unit integrates all the secondary functions in a single unit. 

This multifunctional unit also features a selfmonitoring function.