M FAMILY

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M FAMILY
M Family relays provide economical reliable
digital protection, metering, control and
monitoring in an integrated package.
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Presentation Overview

• What is the M Family
• Applications
• Features Benefits
• Monitoring and Metering
• User Interfaces
• MPC Program Features
• MIF Digital Feeder Protection
• MIV Digital Voltage/Frequency Protection
• MIG Digital Protection for Rotating Machines
• MIN Digital Directional Ground Protection
• MIW Digital Directional Power and Loss of Field
  Protection
• Summary

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What is the M Family?

• The M Family Platform consists of the following
  devices
• MIF Digital feeder protection back-up
  protection for transformers, motors and
  generators
• MIG Digital protection for rotating machines
  including small generators and motors, or large
  generator in a protection scheme
• MIN Digital directional ground overcurrent
  protection, line protection schemes and as a
  component for generator, motor and transformer
  schemes
• MIV Digital voltage and frequency protection
• MIW Digital directional power protection for
  small and medium generators

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Applications
M Family relays can be used in the following
applications

• Feeder protection at any voltage level
• Main protection for small generators and motors
• Backup/auxiliary protection for transformers,
  motors, generators and busbars
• Can be used alone or in an automation system
• Overload protection
• Automatic transfer equipment
• Load shedding and restoration schemes
• Backup directional overcurrent protection
• Reverse power protection
• Bus or line synchronism check
• Generator and network synchronism check
• Three phase reclosing

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Features Benefits

• Safety UL CSA approved
• Reliability Mature family with Failure Rate
  below 0.3/year
• Delivery Quick deliveries achieved via automated
  production cells
• Simple 3-board architecture
• Main board CPU, Voltage Inputs, I/O, Power
  Supply
• Secondary board Current inputs
• Front board HMI (Display, LEDs, RS232)
• Surface mount board manufacturing technology
  reduces size, energy consumption and heat
• ModBus RTU Industry standard communication
  protocol
• New relays to come Pilot wire, Phasor Surge, MIF
  with auto-reclose

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Features Benefits
The M Family offers users many advanced features
including

• Configurable logic
• Configurable curves
• Flash memory allows easy field software upgrades
• Two settings tables (basic and advanced)
• Modular package allows easy and fast maintenance
• Common modules reduce cost of spare components
• Universal AC/DC Power Supply

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Monitoring and Metering

• Current, Voltage, Frequency, Thermal Image, Power
• Event recorder (24/32 events)
• Self-diagnostics
• Analog/Digital Oscillography (with MPC Software)

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User Interfaces
M Family devices feature user-friendly local
interfaces
DISPLAY

• Scrolling LED Dot matrix
• Visible in dim lighting or at any angle
• Used for programming, monitoring, status, fault
  diagnosis, and settings
• Six LEDs (four of them configurable, one fixed
  for service and one fixed for trip)

KEYPAD

• Three button keypad
• Rubber keypad dust tight and splash proof
• RS232 front communication port

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MPC Software Features
Windows-based software allows easy set-up and
monitoring of measured values

• Software runs on Windows-based PCs
• Easy viewing of acual values, view/edit
  settings, view event recorder, view relay status,
  configure LEDs
• Relay firmware programming for upgrades
• Download view Oscillography in Comtrade format
• Program I/O logic
• Simple software calibration allows extra
  performance with no extra product cost

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MIF Digital Feeder Protection
The MIF suits the following applications

• Feeder protection at any voltage level
• Backup/auxiliary protection for transformers,
  motors, and generators

MIF Protection and Control characteristics
include

• 3 phase and ground time delayed overcurrent (51P,
  51G)
• 4 preconfigured overcurrent curves
• 1 user configurable overcurrent curve
• 3 phase and ground instantaneous overcurrent
  (Hiset and Loset) (50PH, 50PL, 50GH, 50GL)
• Open Close breaker controls
• Thermal image protection (49)
• Cold load pickup
• Configurable inputs and outputs
• 6 outputs trip, service required, auxiliary

- MIF Feeder Protection
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New MIF Features and Benefits

• Primary amps reading
• Independent CT ratios for G N
• Complete fault reporting
• Simple software calibration increases accuracy
  up to 1
• (49) thermal function compatible with other
  vendors in newer models of MIF
• Convenient pullers and rear connectors upgraded
  to ease extraction and insertion
• Single shot recloser (79) built in using flex
  logic.

- MIF Feeder Protection
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MIV Voltage and Frequency Protection
The MIV can be used for applications such as

• 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
• Voltage/frequency load shedding and restoration

- MIV Digital Voltage/Frequency Protection
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MIV Protection Control
The MIV offers advanced Protection and Control
functions including

• Three phase undervoltage protection (27) (Hiset
  and Loset)
• MIV includes a separate setting for enabling
  /disabling the undervoltage unit when a breaker
  is open
• Three phase overvoltage protection (59) (Hiset
  and Loset)
• Ground overvoltage protection (59N) (Hiset and
  Loset)
• Voltage unbalance protection (47)
• Under/overfrequency protection(81U/81O)
• Each unit can be independently set as
  underfrequency or overfrequency.
• Each frequency unit is supervised by an
  independently adjustable undervoltage element
• Multiple Setting Groups
• Configurable I/O
• 6 outputs trip, service required, auxiliary

- MIV Digital Voltage/Frequency Protection
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MIG Digital Protection for Rotating Machines
The MIG can be used for applications such as

• Small Generator protection
• Component in larger generator protection scheme
• Standby/critical power protection main unit
• Small motor protection

- MIG Three-phase protection for rotating machines
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MIG Protection Control

• 4 pre-configured overcurrent curves (ANSI, IEC)
• Maximum number of starts
• Locked Rotor
• 6 outputs trip, service required, auxiliary
• Two setting tables

• Thermal image protection
• Unbalance or current reversal
• Phase, ground time overcurrent (51P, 51N)
• Phase, ground instantaneous overcurrent (50P,
  50N)
• Undercurrent (37)

- MIG Three-phase protection for rotating machines
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MIN Digital Directional Ground Protection
Applications for the MIN include

• Directional ground protection control
• Isolated ground or Petersen Coil option
• Backup/auxiliary protection for line schemes
• Component relay for generator, motor and
  transformer packages

- MIN Digital Directional Ground Protection
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MIN Protection Control
The MIN offers users advanced Protection and
Control features including

• Two ground IOC (high and low) units for grounded
  systems
• Two ground TOC (high and low) units for grounded
  systems
• Two directional units (67N) for grounded systems
• Two directional units for ungrounded or Petersen
  coil systems

• Configurable breaker failure to open
• Directional comparison scheme logic (MIN L
  models)
• 4 preconfigured overcurrent curves (ANSI or IEC)
• Configurable I/O
• 6 outputs trip, service reqd, auxiliary

- MIN Directional Ground Protection
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MIW Digital Power Protection
The MIW is suitable for the following
applications

• Small and Medium Generators
• Component for complete M050 and M100 systems
• Standby/critical power protection main unit

- MIW Directional Power Loss of Field Relay
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MIW Features Benefits
The MIWs main features and benefits include

• Single universal model for 1 and 5 A CT using
  just a single terminal.
• High accuracy current sensors allow extremely
  wide range (from 1 to 150 of rated current)
  allowing.
• Digital software calibration improves accuracy.
• Advanced phase angle compensation allows high
  accuracy even in extreme conditions.
• Single model use for over/under power
  applications.
• Easy to use flex logic through MPC software.
• Full compatible with URPC standard software.

- MIW Directional Power Loss of Field Relay
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MIW Protection Control
The MIWs Protection and Control features include

• Active Power protection (32)
• Forward and Reverse (Motoring of generator)
• Under and Over (Wind generators application)
• Loss of field excitation (40)
• Fuse Failure (60)
• 6 outputs trip, service required, auxiliary
• Two setting tables

- MIW Directional Power Loss of Field Relay
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M Family Summary
M Family relays provide economical reliable
digital protection, metering, control and
monitoring in one integrated package.
MIF Feeder auxiliary protection for
transformers, motors and generators MIG
Protection for small generators and motors, and
component in large generator protection
schemes MIN Protection for directional ground,
auxiliary line schemes, and as a component for
generator, motor and transformer schemes MIV
Voltage and frequency protection MIW Power
protection for small and medium generators, and
as a component for M050 and M100 system