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

5 SETTINGS

5.2PRODUCT SETUP

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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
Two levels of password security are provided via the
is not available and intended for factory use only.
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.
The command and setting passwords are defaulted to "0" when the relay is shipped from the factory. When a password is
set to "0", the password security feature is disabled.
The B90 supports password entry from a local or remote connection.
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: command and setting. The factory service level
5.2 PRODUCT SETUP
5.2.1 B90 FUNCTION
to "Protection"),
B90 FUNCTION
5.2.2 SECURITY
5-5
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