REF542PLUS

Description

The ABB REF542PLUS is a multi-functional digital protective relay belonging to the REF542 series, designed for protection, control and monitoring in medium voltage power systems. Here is a detailed description of the product:

ABB REF542PLUS Product description

The ABB REF542PLUS is a high-performance digital protective relay that integrates measurement, monitoring, protection, control and self-diagnosis for medium voltage distribution systems. It is designed to improve the reliability and safety of power systems while supporting the needs of intelligence and automation.

Product parameter

Rated voltage: 6kV to 36kV, can be customized according to demand.

Maximum current: up to 6000A.

Operating temperature range: -25℃ to +70℃ or -40℃ to +85℃ (some models).

Protection level: IP20 or IP65.

Dimensions: 225 mm x 110 mm x 50 mm.

Weight: 2.0kg.

Communication protocols: Support Modbus, IEC 61850, DNP3.0, etc.

Product specification

Protection function: overcurrent, ground fault, loss of voltage, short circuit, overload, undervoltage, single-phase grounding, zero sequence current, etc.

Measurement function: Accurate measurement of voltage, current, power, power factor, frequency, etc.

Control function: Support remote control switch operation, automatic reclosing, tripping, etc.

Self-diagnosis function: real-time monitoring equipment running status and provide fault diagnosis information.

Series and features

The ABB REF542PLUS belongs to the REF542 series, which has the following features:

Flexibility and scalability: Suitable for a variety of medium voltage switchgear, supporting air insulation and gas insulation systems.

High reliability and high performance: Advanced hardware and software technologies ensure long-term stable operation.

User-friendly interface: Equipped with intuitive HMI (Human Machine Interface) for easy operation and configuration.

Multifunctional integration: Measurement, monitoring, protection and control functions are integrated in a single unit.

Function and use

The main functions of the ABB REF542PLUS include:

Protection function: Protect transformers, feeders, motors and other equipment in the power system from failure.

Control function: Remote control of power distribution devices to improve power supply reliability.

Monitoring function: real-time monitoring of power grid operation status, timely detection and alarm faults.

Self-diagnosis: Provides health status information for maintenance personnel.

Application field

ABB REF542PLUS is widely used in the following areas:

Distribution automation: Used for feeder protection, substation automation.

Industrial automation: protection and control of industrial equipment.

Renewable energy access: Support the access and protection of new energy generation facilities.

Power system: Protect transformers, motors and other key equipment.

Building power distribution system: Protect the electrical equipment in the building.