GE D90 Plus Instruction Manual page 19

Line distance protection system
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CHAPTER 2: PRODUCT DESCRIPTION
Annunciator
Control functions
USB port
PLUS
D90
LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
of metered values, such as voltage, current, demand, energy, and sequence components,
to a comprehensive display of fault reports, sequence of events, and transient recorded
waveforms. The front panel interface also displays device health information with critical
and non-critical alarm status. The panels allow access to comprehensive information
without having to navigate through conventional displays and keypads.
Plus
The D90
provides an embedded, configurable color LCD annunciator on the front panel
of the device, eliminating the need for LEDs and separate annunciators in the panel.
Any contact, direct input, remote input, or internally generated operand can be assigned
to the annunciator. Up to 288 targets can be assigned. The display can be configured for
12, 24, or 48 alarms per page to a maximum of 24 pages. A separate self-test message
page displays error messages about device health. This page also provides a graphical
representation of the error messages, which assists in identifying and correcting problems.
Figure 5: Typical annunciator display
The front panel interface contains a mimic diagram that provides status and control for
2 breakers and up to 6 disconnect switches. Many different bay configurations can be
realized through the setting of the device. Tagging of a device and substitution of device
status can also be carried out through front panel. Status and control of the autoreclose
function is also available through the mimic diagram.
Figure 6: Front panel control example
The front panel provides a USB 2.0 port for local connection to a computer.
PRODUCT DESCRIPTION
9

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