Transcript MIFII presentation 2008

MIFII DIGITAL FEEDER
PROTECTION
A Cost Effective Protection Solution for Overcurrent
Protection at Any Voltage Level
GE Multilin
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BLOCK DIAGRAM
MIFII Protection and Control characteristics:
Combines Overcurrent Protection and Multiple-shot Reclosing in One Compact Relay
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MIFII – OVERCURRENT PROTECTION
REPLACE ALL THIS………………………………………….……….WITH M
+
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APPLICATIONS
The MIFII can be used for:
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Applicable to Electric Utilities and Industrial
Plants
50 or 60 Hz Systems
Main Protection for Medium and Low Voltage
Feeders
Main Protection for Power Transformers (less
than 10MVA)
Core Balance Differential Protection for Motors
Backup Protection for Power Transformers (for
any power level)
Backup Protection for Generators
Backup Protection for Transmission Lines
Backup Protection for Substation Busbars
Thermal Image Protection/Supervision for
Cables, Power Transformers, Grounding
Resistors and Generation Elements
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TYPICAL WIRING
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PROTECTION AND CONTROL
MIFII Protective Functions include:
• Phase Time Overcurrent (51P)
0.1 – 2.4 A (1Amp model)
0.5 – 12A (5Amp model)
• Ground Time Overcurrent (51G)
0.1 – 2.4 A (1Amp model)
0.5 – 12A (5Amp model)
• Phase Inst Overcurrent (50P-1, 50P-2)
0.1 to 30.0 (1 Amp model)
0.5 to 150.0 (5 Amp model)
• Ground Inst Overcurrent (50G-1, 50G-2)
0.1 to 30.0 (1 Amp model)
0.5 to 150.0 (5 Amp model)
• Sensitive and Very Sensitive Ground Overcurrent
Models
0.005-0.12 A or 0.002-0.048A (1 Amp model)
• Selectable Time Overcurrent Curves (Definite Time,
ANSI, IAC or IEC)
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PROTECTION AND CONTROL
MIFII Time Current Curve Options:
• Preconfigured Overcurrent Curves, Definite Time
Curve &
One User Configurable Overcurrent Curve (FlexCurve)
• Selectable ANSI, IAC or IEC curve option when
ordering
• ANSI Option
• IAC Option
IAC Extremely Inverse
IAC Very Inverse
IAC Inverse
IAC Inverse Long
IAC Inverse Short
Extremely Inverse
Very Inverse
Inverse
• IEC Option
Inverse (IEC Curve A)
Very Inverse (IEC Curve B)
Extremely Inverse (IEC Curve C)
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PROTECTION AND CONTROL
MIFII Protective Functions include:
• Thermal Image Protection (49)
• Cold Load Pickup (available in Option
2 models)
(Phase IOC & TOC multipliers)
• Breaker Failure to Open (available in
Option 2 models)
• I2 Counter with Alarm for Breaker
Health Monitoring (available in Option
2 models)
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PROTECTION AND CONTROL
MIFII Programmable Logic & I/O Features
• Logic Configuration (available in
Option 2 models)
• 4 logic groupings (Logic 1,
Logic 2, Logic 3 and Logic 4)
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PROTECTION AND CONTROL
MIFII Programmable Inputs, Outputs & LEDs:
• Programmable Inputs and Outputs (available in Option 1 & 2
models)
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PROTECTION AND CONTROL
MIFII Control Features:
• Four Shot Recloser for Three-Pole
Application (available in Option R
models)
• Select protective functions to be active
before and after each reclose shot
• Selectable shot dead times
• Selectable reset time and incomplete
sequence time
• 2 Setting groups
• Manual Open/Close Breaker
• Security
• Access password for setting changes
• Local access password
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METERING & MONITORING
MIFII Metering & Monitoring Features:
• Phase and ground currents metering
(Ia, Ib, Ic, Ig) on front display in primary or
secondary values
• Thermal image metering
• 32 event recorder with analog and
pickup/trip details (available in Option 1
and Option 2 models)
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METERING & MONITORING
MIFII Metering & Monitoring Features:
• One oscillography record (available in Option 1 and Option 2
models)
• 8 samples per cycle with a length of 24 cycles (including 2
prefault cycles)
• Instantaneous values Ia, Ib, Ic, Ig
• Pickups
• Trip inhibition by digital input
• Trips
• Ready (protection in service)
• Auxiliary digital outputs
• Digital inputs
• Breaker 52A, Breaker 52B, (digital input status)
• Breaker Closed (OPTION 2 models)
• Breaker opening failure (OPTION 2 models)
• I2 alarm (OPTION 2 models)
• Cold load pickup (OPTION 2 models)
• Group 2 selection by digital input
• EEPROM failure
• Default settings/User settings
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HARDWARE
DISPLAY & LEDS
Text 2x16 display
6 LEDs with customizable label panel (4
programmable with Option 1 and Option 2 models)
Able to Read Metering Display in Direct Sunlight
KEYPAD
ESC/RESET key
UP/DOWN keys for easy navigation
ENTER function
Menu key
FRONT PORT
Electrically isolated front RS232 communication
port for programming, data retrieval and firmware
update
DRAWOUT CONSTRUCTION
Entire MIFII unit is removable from case
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DIMENSIONS
OPTIONAL DEPTH REDUCING COLLAR (B1315P1
Compact Design in a Modular Package for Easy Maintenance
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EnerVista MII Setup Software (nocharge)
MIIPC Software provides the following functions:
Logic
Settings
Oscillography
Metering
Powerful Configuration Tool That Get the MIFII up and Running in Minutes
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COMMUNICATIONS
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A front mounted RS232 and a rear RS485 port allow easy user
interface via a PC
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Modbus RTU protocol is used for all ports
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The relay supports baud rates from 300 to 19200 bps. Settable
Modbus Slave address.
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Use optional MULTINET-FE to get Modbus TCP/IP connection
(10MBps)
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Compatible with Viewpoint Monitoring Software
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MIFII - ORDER CODE
***
AC/DC Power Supply
OPTION TO GET HARSH CONFORMAL COATING – H (last letter of model number)
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MIFII - ACCESSORIES
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B1315P1 Depth reducing collar (reduces
the mounting depth by 2.45 inches)
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B1343P1 S1/S2 case adapting collar for
retrofit installations
OPTIONAL S1/S2
CASE ADAPTER
COLLAR
(B1343P1)
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