GE Digital Energy
MIVII Digital Voltage and Frequency Relay
Revision 4.03 release notes
GE Publication Number: GER-4300
Copyright © 2008 GE Multilin
Overview
Summary
GE Multilin releases the 4.03 firmware version for the MIVII Digital Voltage and Frequency Relay. Highlights of this
release include:
• New LTU value upgrading function.
• Enhancement in frequency protection functions for MIVII2000 and MIVII3000.
This document contains the release notes for the 4.03 release of the MIVII Digital Voltage and Frequency Relay.
• Affected product: MIVII2000 and MIVII3000 Digital Voltage and Frequency Relays with 4.01 and 4.02
firmware versions.
• Date of release: August 26th, 2008.
• Firmware revision: 4.03.
Description
The version 4.03 release is compatible with the EnerVista MII Setup 2.41 and higher.
GE Digital Energy
Release Details
In the following change descriptions, a revision category letter is placed to the left of the description.
Refer to the Appendix at the end of this document for a description of the categories displayed.
Enhancements
Communications
N
New LTU directions
Version 4.03 includes a function to upgrade the values of the LTU to their corresponding Modbus directions.
Protection
F
Frequency Protection Enhancement
In versions 4.01 and 4.02 of MIVII2000 and MIV3000, delivered between July 2005 and August 2008, if the
frequency protection functions are enabled, the time delay is set to zero seconds and with heavy noise in the line,
when the relay is powered up there is a remote chance of having an undesired trip.
Version 4.03 includes an enhanced frequency protection filter in order to guarantee a secure protection
even under extreme conditions.
GE Digital Energy
Appendix
Change Categories
This document uses the following categories to classify the changes
Table 1: Revision categories
Code Category Comments
N New feature A separate feature added to the relay. Changes to existing features
even if they significantly expand the functionality are not in this
category.
G Change A neutral change that does not bring any new value and is not
correcting any known problem
E Enhancement Modification of an existing feature bringing extra value to the
application
D Changed, incomplete or false faceplate Changes to, or problems with text messages, LEDs and programmable
indications buttons.
R Changed, incomplete or false relay records Changes to, or problems with relay records (oscillography, demand,
fault reports, etc.)
C Protocols and communications Changes to, or problems with protocols or communication features
M Metering Metering out of specifications or other metering problems
P Protection out of specifications Protection operates correctly but does not meet published
specifications (example: delayed trip)
U Unavailability of protection Protection not available in a self-demonstrating way so that corrective
actions could be taken immediately
H Hidden failure to trip Protection may not operate when it should
F False Trip Protection may operate when it should not
B Unexpected restart Relay restarts unexpectedly
The revision category letter is placed to the left of the change description.
GE Multilin technical support
GE Multilin contact information and call center for product support is shown below:
GE Multilin
215 Anderson Avenue
Markham, Ontario
Canada L6E 1B3
Telephone: 905-294-6222 or 1-800-547-8629 (North America), +34 94 485 88 00 (Europe)
Fax: 905-201-2098 (North America), +34 94 485 88 45 (Europe)
E-mail: multilin.tech@indsys.ge.com
Home Page: http://www.GEindustrial.com/multilin
