Manufacturing for this product has been discontinued. As an alternative, please refer to the Multilin 350.

The MIN II, a member of the M II family of protection relays, is a microprocessor based relay that provides ground directional protection on distributed networks at any voltage level and backup/auxiliary ground directional protection for transformers, generators and motors. Additionally, it can be used to create a separate directional comparison ground scheme in pilot channels used for distance relaying.

Features & Benefits

• Reduce troubleshooting and maintenance cost - Event recording, and analogy/digital oscillography
• Design flexibility - Easy to use programming logic
• Access to information - Modbus® RTU communications
• Configurable logic, curves, digital I/Os, and LEDs
• Follow technology evolution - Flash memory for product field upgrade
• Asset monitoring - Breaker health, and breaker failure protection
• Two settings groups
• Password protection for local operation
• Automatic display of last fault information
• AC/DC power supply
• Access via front panel keypad or communication links
• EnerVista™ compatible
• Isolated RS232 port

Applications

• Directional ground protection at any voltage level
• Backup/auxiliary protection for line schemes
• Component relay for transformers, generators and motors

Protection & Control

• 2 ground IOC (high and low) units for grounded systems
• 2 ground TOC (high and low) units for grounded systems
• 2 directional units for grounded systems
• 2 directional overcurrent units for Petersen coil
• 2 directional overcurrent units for isolated ground
• Directional comparison: scheme logic
• 4 preconfigured overcurrent curves (ANSI or IEC)
• Configurable breaker failure protection
• Configurable I/O
• 6 outputs: trip, service, 4 auxiliary

Monitoring & Metering

• 32-event record, analog/digital oscillography
• KI2 counter for breaker maintenance
• Ground current metering
• Monitoring of the last 5 trips information from the display

User Interface

• 2x16 character LCD display
• 6 LED indicators, 4 configurable in function and color
• Front RS232 and rear RS485 ports using Modbus® RTU protocol up to 19,200 bps
• EnerVista™ software - an industry leading suite of software tools that simplifies every aspect of working with GE Multilin devices