REM543 ABB Bailey

REM543 ABB Bailey Analog Output Modules

Product  Description：

• • • • • The ABB Bailey REM543 is a multi-functional, microprocessor-based Machine Protection Terminal designed for the comprehensive protection, control, measurement, and supervision of rotating electrical machines, particularly medium to large-sized motors and small to medium-sized generators. It integrates numerous functions into a single unit, minimizing the need for auxiliary relays.

          Product Specifications

          • Product Type: Multi-Function Machine Protection and Control Relay

          • Platform/Series: Part of the ABB REM 54_ series of numerical machine terminals.

          • Primary Function: Provides high-end protection for induction and synchronous motors and generators.

          • Protection Features: Includes a broad suite of functions such as phase and ground overcurrent, differential protection (for generators), thermal overload protection using a sophisticated motor model (for rotors and stators), unbalance load protection, over/undervoltage, and abnormal frequency protection. It also features specific functions for motor start-up supervision and stall protection.

          • Measurement Capabilities: Extensive metering including phase currents, phase-to-phase and phase-to-neutral voltages, neutral current, residual voltage, frequency, power factor, active/reactive power, and energy.

          • Control Functions: Local and remote control capabilities for switching objects (e.g., circuit breakers or motor starters), synchro-check, status indication, and interlocking logic.

          • Monitoring and Diagnostics: Features include detailed fault recording, event logging, continuous condition monitoring, circuit breaker monitoring (wear, travel time), and an integrated disturbance recorder for capturing current/voltage waveforms during faults.

          • Input/Output: Highly configurable digital (binary) inputs and output relays. An optional RTD/mA I/O module is available for direct temperature monitoring of stator windings, bearings, and ambient conditions using RTDs (e.g., Pt100) or mA analog inputs.

          • Communication: Includes multiple communication ports, typically an optical RS-232 front port for local configuration and PC connection (using CAP501 software), and back communication ports (e.g., RS-485, Ethernet) that support industrial protocols like Modbus RTU/TCP and IEC 61850 for seamless integration into substation or plant control systems.

          Product Advantages

          • Integrated Multi-Functionality: Combines a full range of protection, control, measurement, and condition monitoring into one cost-effective package, reducing panel space, wiring complexity, and installation costs.

          • Advanced Motor Modeling: Utilizes sophisticated thermal models for accurate estimation of stator and rotor thermal conditions, allowing for precise thermal overload protection and maximizing machine utilization without risking damage.

          • High Reliability in Harsh Environments: Designed to operate successfully in challenging industrial and utility environments, including mining, marine, offshore, and heavy industry applications.

          • Programmable Logic Capability: Features extensive PLC-like functions (using graphical configuration tools) that allow users to integrate custom automation and sequence logic directly into the terminal, further reducing the need for external control relays.

          • Advanced Diagnostics: The disturbance recorder and detailed event log provide essential data for root cause analysis of trips and faults, minimizing downtime and aiding in maintenance planning.

          Important Considerations (Precautions)

          • Legacy Status: The REM543 is often a discontinued or legacy product and has been largely replaced by newer generations of ABB relays. Users should check the product lifecycle status and consider the availability of spare parts and long-term service support.

          • Installation and Wiring: Installation must be performed by qualified personnel following all local electrical codes and the manufacturer's detailed instructions to ensure proper grounding, protection, and reliable operation.

          • Configuration: The relay requires specialized software (CAP501) and engineering expertise for proper configuration of the numerous protection elements, I/O mapping, and communication settings to match the specific application requirements of the protected machine. Incorrect settings can lead to nuisance tripping or, more critically, failure to trip when necessary.

          • Power Supply: Ensure the control power supply voltage matches the specific relay variant.

          • RTD Module: If using temperature monitoring, the optional RTD/mA I/O module must be correctly ordered and configured to interpret the sensor signals (e.g., Pt100, Ni120) accurately.

          Product Applications

          The ABB Bailey REM543 is a crucial component in power generation and heavy industrial control systems, primarily used for:

          • Generator Protection: Serving as the main protection and control system for small and medium-sized generators and generator-transformer units in diesel, hydroelectric, and steam power plants.

          • Large Motor Protection: Protecting critical medium-voltage (MV) and large low-voltage (LV) synchronous and asynchronous motors that drive essential industrial equipment such as:

            • Pumps and Fans

            • Compressors

            • Mills and Crushers

            • Conveyor systems

          • Substation Automation: Integrating motor/generator protection and control functions into a wider Substation Automation System (SAS) using its communication capabilities (e.g., IEC 61850).

          • Marine and Offshore Applications: Its robust design makes it suitable for demanding marine and offshore installations.

The structure and details of the product：

Our services：

Shipping Port:  China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

Warranty: one year

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JUSTWELL PTE. LTD

Our main products include DCS control system spare parts, PLC system spare parts, and robot system spare parts. Our advantageous brands include Allen Bradley, Bently Nevada, ABB, HIMA, Reliance, Bender, National Instruments, Emerson Ovation, Honeywell, Siemens, Allen Bradley, ICS Triplex, FOXBORO, Schneider, GE Fanuc, Motorola, HIMA, Prosoft, and other imported industrial components. Our main products serve a wide range of electronic, metallurgical, chemical, and power plants Industries such as steel mills, rubber, cement, machinery and equipment, and construction.