MIV Voltage/Frequency Protection System

Product Description

 MIV Voltage/Frequency Protection System

The MIV, 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/under voltage protection and monitoring, under voltage detection in automatic transfer systems, over voltage protection of generators, under voltage, voltage unbalance protection of motors, monitoring of lines and bus bars for healthy/existing/lack of voltage and voltage/frequency load shedding and restoration.

Applications

• Over/under voltage protection and monitoring
• Over voltage protection for generators
• Under voltage detection in automatic transfer systems
• Under voltage/voltage unbalance protection for motors
• Monitoring of lines and busbars for healthy/existing/lack of voltage

Protection and Control

• Three phase under voltage protection (27) (Hiset and Loset)
• Three phase over voltage protection (59) (Hiset and Loset)
• Ground over voltage protection (59N) (Hiset and Loset)
• Voltage unbalance protection (47)
• Under/over frequency 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, face plate accessible (19.2 kbps, Mod Bus RTU)
• RS485 rear port (19.2 kbps, Mod Bus RTU)
• LED dot matrix display and keypad