ABB REM615E_S medium-voltage protection relays

The following is an analysis of the core technologies of the ABB REM615E_S protection relay:

Key Positioning

Model: REM615E_S

Series: ABB Relion® 615 Line Protection Relay

Suffix Meaning:

E: Standard Hardware Platform

S: Special Safety Certifications/Enhanced Environmental Adaptability (usually refers to industrial explosion-proof, wide temperature range, or specific area certifications)

Core Function Comparison (VS REM615E_G)

Features REM615E_G REM615E_S

Protection Functions: Distance protection + OC/EF/ARC (Same basic functions as REM615E_G)

Communications: IEC 61850, Modbus, DNP3.0 (Same protocols as REM615E_G)

Safety Certifications: Global (CE/UL)

Enhanced certifications (e.g., ATEX/IECEx explosion-proof*)

Environmental Adaptability: -25°C to +70°C

Extended Temperature Range: -40°C to +85°C*

Application Scenario: Conventional Substation/Distribution Harsh Industrial Environments (Mining/Petrochemical/Offshore Platforms)

Three Core Advantages

Enhanced Safety and Compliance

SIL 2/3 or ATEX explosion-proof certification (suitable for flammable and explosive environments)

Compliant with IEC 60079 industrial safety standards

Adaptable to extreme environments

Wide operating temperature range (-40°C to +85°C)

Enhanced vibration, humidity, and corrosion resistance

Seamless integration

Full range of functions: distance protection, fault recording, and GOOSE communication

Compatible with the PCM600 engineering tool chain

Typical Application Scenarios

Oil and gas platforms: Feeder protection in explosion-proof areas

Mining power systems: Line protection in high-dust/humid environments

Ocean-going vessel power systems: Salt spray corrosion resistance

Cold zone substations: Reliable operation in extremely low-temperature environments