Product Setup; B90 Function; Security - GE B90 Instruction Manual

5 SETTINGS

5.2PRODUCT SETUP


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
is set to "Protection". Features that are not dependent on AC signals (such as logic part of the Breaker Fail-

B90 FUNCTION

ure protection or Isolator Monitoring) become available if the
Typically, three IEDs in the B90 system have hardware configured to support AC inputs (set
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
The setting allows the user to work with a single setting file, program all required functions (both protection
B90 FUNCTION
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
a) MAIN MENU

PATH: SETTINGS PRODUCT SETUP
 SECURITY

MESSAGE
MESSAGE
MESSAGE
MESSAGE
For the , the "Restricted" option means both settings and commands can be accessed, but there is no
ACCESS LEVEL
access to factory configuration.
The "Factory Service" level is not available and intended for factory use only.
Two levels of password security are provided via the
password for each. Use of a password for each level controls whether users can enter commands or change settings.
Another option is to specify setting and/or command access for individual user accounts.
The following operations are under command password supervision:
• Changing the state of virtual inputs.
• Clearing the event records.
• Clearing the oscillography records.
• Changing the date and time.
• Clearing the data logger.
• Clearing the user-programmable pushbutton states.
The following operations are under setting password supervision:
• Changing any setting.
• Test mode operation.
GE Multilin

B90 FUNCTION
B90 FUNCTION:
Protection
to "Logic").
settings are typically modified when downloading the common B90 setting file.


SECURITY

ACCESS LEVEL:
Restricted
 CHANGE LOCAL
 PASSWORDS
 ACCESS
 SUPERVISION
 DUAL PERMISSION
 SECURITY ACCESS
PASSWORD ACCESS
EVENTS: Disabled
ACCESS LEVEL
B90 Low Impedance Bus Differential System
Range: Protection, Logic
is set to "Logic".
B90 FUNCTION
Range: Restricted, Command, Setting,
Factory Service (for factory use only)
See page 5–6.
See page 5–8.
See page 5–8.
Range: Disabled, Enabled
setting, setting and command, for which you set a
5.2 PRODUCT SETUP
5.2.1 B90 FUNCTION
to "Protection"),
B90 FUNCTION
5.2.2 SECURITY
5-5
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