АВВ+REF542PLUS 76A2NFFF30EWS28

Description

### Product Name:

**ABB REF542plus 76A2NFFF30EWS28 Protection and Control Relay**

### Product Description:

The ABB REF542plus is a comprehensive protection and control relay designed for medium-voltage applications, offering advanced functionalities for the protection, control, and monitoring of electrical power systems. It is part of ABB’s REF series, known for its reliability and versatility in safeguarding transformers, feeders, and other electrical equipment.

This specific model, REF542plus 76A2NFFF30EWS28, provides a robust, user-friendly interface, integrated communication capabilities, and high-speed protection features. Its modular design allows for easy configuration and expansion to meet diverse installation requirements.

### Product Paramete@rs and Specifications:

– **Model Number:** REF542plus 76A2NFFF30EWS28
– **Type:** Digital protection relay
– **Application:** Medium-voltage systems, transformers, and feeders
– **Protection Functions:**
– Overcurrent protection (I> & I>>)
– Earth fault protection (I0> & I0>>)
– Distance protection
– Differential protection
– Voltage and frequency protection
– **Control Functions:**
– Automatic circuit breaker control
– Remote control via communication protocols
– Manual tripping and closing
– **Communication Protocols:**
– Modbus
– IEC 61850
– DNP3
– **User Interface:**
– LCD display for settings and monitoring
– LEDs for status indication
– User-friendly menu navigation
– **Supply Voltage:**
– Typically 110V AC or DC, field-configurable
– **Operating Temperature:** -20°C to +70°C
– **Mounting Options:** Panel or rack mount
– **Dimensions:** (Please refer to the manufacturer’s datasheet)
– **Weight:** (Please refer to the manufacturer’s datasheet)

### Product Use:

The ABB REF542plus 76A2NFFF30EWS28 is utilized in the following applications:

– **Protection of Medium-Voltage Transformers:** It safeguards transformers from various fault conditions, ensuring reliable operation and minimizing damage.
– **Feeder Protection:** It monitors and protects feeder circuits from overloads, short circuits, and earth faults.
– **Control in Substations:** The relay acts as a control interface for circuit breakers and other switching devices, facilitating automation and remote operations.
– **Monitoring of Electrical Systems:** It provides real-time data and events logging for effective monitoring and diagnostic purposes.
– **Integration into Smart Grids:** Compatible with advanced communication standards, enabling integration into modern smart grid solutions.

АВВ+REF542PLUS 76A2NFFF30EWS28