Description

GE/ Alstom 239 Motor Protection Relay

The GE Alstom 239 Motor Protection Relay is designed to fully protect three phase AC motors against conditions which can cause damage. In addition to motor protection, the relay has features that can protect associated mechanical equipment, give an alarm before damage results from a process malfunction, diagnose problems after a fault and allow verification of correct relay operation during routine maintenance. It is also available with a Harsh Environment Conformal Coating option.

Features and benefits:
• Save on installation cost – Compact design
• Enhanced protection – incorporates thermal models
• Setting flexibility – Multiple setpoint groups
• Simplify testing – Built in simulation features
• Asset Monitoring – Temperature monitoring via optional
• RTD inputs
• Access information – via Modbus RTU™
• Follow technology evolution – Flash memory for product field upgrade

Applications:
• Complete protection of small to medium sized motors
• Pumps, conveyors, compressors, fans, sawmills, mines

Protection and Control:
• Thermal Overload (15 selectable curves) – Trip and alarm, immediate current overload alarm
• Phase short circuit
• Mechanical jam
• Thermal memory lockout
• Single-Phasing / Current unbalance
• Ground fault – trip and alarm
• Overtemperature: via thermistor or optional RTD inputs
• Undercurrent
• Breaker Failure
• Trip/alarm/auxiliary/service outputs
• Multi-speed motor protection
• Motor start supervision

Monitoring and metering
• Status/current/temperature display
• Fault diagnosis
• Trip record, last 5
• Process control
• Optional analog output

User Interface
• RS485 serial port
• Keypad
• 40 character illuminated display
• 6 LED indicators
• Compatible with EnerVista Setup software

GE’s motor protection systems use advanced thermal modeling to provide optimized protection and ensure maximum process uptime. Our highly skilled engineers and technicians understand motor protection and the various scenarios that can cause damage to motors. They apply their knowledge to the design and manufacture of some of the most advanced protection relays and systems in the world.

We offer GE’s century long tradition of power system innovation. From generators to transmission lines, to motors and beyond, we ensure dependable, safe power worldwide. GE offers a wide range of single function and auxiliary relays, along with a portfolio of accessories, to support high performing and reliable protection and control systems. To explore the GE portfolio with us click here GE numerical Relays !