REM545BG226BAAA ABB Mechanical terminal

This text mainly describes some information and functions of the REM 545 mechanical terminal product. Here’s a closer look at the text:

“The REM 545 mechanical terminal is the main protection system for generators and transformer units of small and

medium-sized diesel, hydraulic and steam power plants. The protection of large and/or important medium pressure synchronous

and asynchronous motors, for example, forms another area of application during pump, mill and crusher start-up and normal operation.”

This paragraph mainly introduces the application areas of the REM 545 mechanical terminals, including small and medium-sized

power plants and the protection of large and medium voltage motors.
“The protection features of REM 545 are designed for selective short-circuit and ground fault protection in rotating machinery.”

REM545M

The main function of REM 545 is to protect rotating machinery from short circuits and ground faults.
“Unlike most other power system components, rotating machines also require protection against abnormal operating conditions,

such as over current, unbalanced load, over temperature, over voltage, over excitation and under excitation, under impedance,

under low frequency and under low frequency, and generator motors.” This paragraph highlights the wide range of protection

required for rotating machines, including not only failure protection, but also various abnormal operating conditions.
“For motor protection start supervision, there are stall protection and a cumulative start counter function.” This paragraph mentions

two additional features of motor protection: stall protection and a cumulative start counter.
The paragraph “machine protection relay” states that REM 545 is a machine protection relay.
The “Benefits of the Product” section lists several advantages of the product, including extensive protection of motors and generators,

programmable logic functionality (PLC), optical communication for fast, interfertion-free communication, flexible connectivity

and IEC 61850 support, certification for maritime and offshore use, and more.
The “Product Features” section lists several features of the product, including voltage and current measurement via conventional

measurement transformers or current sensors and dividers, support for IEC 61850 protocol via SPA-ZC 400 adapter, 25 binary input and 18 output relays and optional RTDS.