GE Multilin
B90 Low Impedance Bus Differential System
5-5
5 SETTINGS
5.2 PRODUCT SETUP
5
5.2PRODUCT SETUP
5.2.1 B90 FUNCTION
PATH: SETTINGS
PRODUCT SETUP
B90 FUNCTION
The setting acts as a B90 master switch enabling certain relay elements. For example, all features dependent on AC inputs
(such as bus differential, instantaneous overcurrent, time overcurrent, and undervoltage) become available if the
B90 FUNCTION
is set to “Protection”. Features that are not dependent on AC signals (such as logic part of the Breaker Fail-
ure protection or Isolator Monitoring) become available if the
B90 FUNCTION
is set to “Logic”.
Typically, three IEDs in the B90 system have hardware configured to support AC inputs (set
B90 FUNCTION
to “Protection”),
while the fourth IED is configured to support all required input contacts and is intended for isolator monitoring and other
logic functions (set
B90 FUNCTION
to “Logic”).
The
B90 FUNCTION
setting allows the user to work with a single setting file, program all required functions (both protection
and logic), download the same file to all the B90 IEDs, and modify the settings accordingly to finalize the application. Com-
munications and
B90 FUNCTION
settings are typically modified when downloading the common B90 setting file.
5.2.2 SECURITY
a) SECURITY OVERVIEW
The following security features are available:
•
Password security — Basic security present in the default offering of the product
•
EnerVista security — Role-based access to various EnerVista software screens and configuration elements. The fea-
ture is available in the default offering of the product and only in the EnerVista software.
•
CyberSentry security — Advanced security options available as a software option. When purchased, the options are
automatically enabled, and the default Password security and EnerVista security are disabled.
LOST PASSWORD
If all passwords are lost, recovery is possible by resetting the unit to default values. Note that the relay is reset to default
values, not just the passwords.
To reset the unit after a lost password:
1.
Email GE customer service at multilin.tech@ge.com with the serial number and using a recognizable corporate email
account. Customer service provides a code to reset the relay to the factory defaults.
2.
Enter the reset code on the front panel, under
COMMANDS
RELAY MAINTENANCE
SERVICE COMMAND
.
3.
Change the default password of ChangeMe1# as outlined in the
Setting Up CyberSentry and Changing Default Pass-
word
section in the first chapter.
PASSWORD REQUIREMENTS
A user account requires an alpha-numeric password that meets the following requirements:
•
Password is case-sensitive
•
Password cannot contain the user account name or parts of the user account that exceed two consecutive characters
•
Password must be 6 to 20 characters in length
•
Password must contain characters from three of the following four categories:
- English uppercase characters (A through Z)
- English lowercase characters (a through z)
- Base 10 digits (0 through 9)
- Non-alphabetic characters (for example, ~, !, @, #, $,%, &)
B90 FUNCTION
B90 FUNCTION:
Protection
Range: Protection, Logic
Summary of Contents for B90
Page 10: ...x B90 Low Impedance Bus Differential System GE Multilin TABLE OF CONTENTS ...
Page 284: ...5 166 B90 Low Impedance Bus Differential System GE Multilin 5 8 TESTING 5 SETTINGS 5 ...
Page 334: ...10 8 B90 Low Impedance Bus Differential System GE Multilin 10 2 BATTERIES 10 MAINTENANCE 10 ...
Page 338: ...A 4 B90 Low Impedance Bus Differential System GE Multilin A 1 PARAMETER LISTS APPENDIX A A ...
Page 460: ...C 30 B90 Low Impedance Bus Differential System GE Multilin C 7 LOGICAL NODES APPENDIX C C ...
Page 476: ...E 10 B90 Low Impedance Bus Differential System GE Multilin E 1 IEC 60870 5 104 APPENDIX E E ...
Page 502: ...viii B90 Low Impedance Bus Differential System GE Multilin INDEX ...
