Description

MIV Voltage/Frequency Protection System

The MIV Frequency Protection System, a member of the M Family of protection relays, is a microprocessor based relay that provides voltage, frequency or voltage and frequency protection for a wide range of applications at any voltage level, including over/undervoltage protection and monitoring, undervoltage detection in automatic transfer systems, overvoltage protection of generators, undervoltage, voltage unbalance protection of motors, monitoring of lines and busbars for healthy/existing/lack of voltage and voltage/frequency load shedding and restoration.

Applications
• Over/undervoltage protection and monitoring
• Overvoltage protection for generators
• Undervoltage detection in automatic transfer systems
• Undervoltage/voltage unbalance protection for motors
• Monitoring of lines and busbars for healthy/existing/lack of voltage

Protection and Control
• Three phase undervoltage protection (27) (Hiset and Loset)
• Three phase overvoltage protection (59) (Hiset and Loset)
• Ground overvoltage protection (59N) (Hiset and Loset)
• Voltage unbalance protection (47)
• Under/overfrequency protection (81U/81O)
• Configurable I/O

Monitoring and Metering
• 24 Event record
• Analog/digital oscillography

User Interface
• M+ Setup software for setting, monitoring
• RS232 port, faceplate accessible (19.2 kbps, ModBus RTU)
• RS485 rear port (19.2 kbps, ModBus RTU)
• LED dot matrix display and keypad

Features and Benefits

1. Advanced 16-bit microprocessor
2. Configurable logic, curves, digital I/Os, and LEDs
3. Flash memory for field upgrades
4. Two settings groups
5. Three models available for voltage, frequency and combined protection
6. Drawout case for easy maintenance
7. AC/DC power supply
8. Access via front panel keypad or communication links
9. Diagnostic features – event recording and analog/digital oscillography
10. Compatible with M Family systems in half or full 19″ racks

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 !