Date Code 20150130 Instruction Manual SEL-787 Relay
Section 8
Front-Panel Operations
Instruction Manual
Overview
The SEL-787 Transformer Protection Relay front panel makes transformer
data collection and control quick and efficient. Use the front panel to analyze
operating information, view and change relay settings, and perform control
functions. The SEL-787 features a straightforward menu-driven control
structure presented on the front-panel liquid crystal display (LCD). Front-
panel targets and other LEDs give a clear indication of the SEL-787 operation
status. The features that help you operate the relay from the front panel
include the following:
➤ Reading metering
➤ Inspecting targets
➤ Accessing settings
➤ Controlling relay operations
➤ Viewing diagnostics
Front-Panel Layout
Figure 8.1 shows and identifies the following regions:
➤ Human-Machine Interface (HMI)
➤ TARGET RESET and navigation pushbuttons
➤ Operation and target LEDs
➤ Operator control pushbuttons and pushbutton LEDs
➤ EIA-232 Serial Port (PORT F). See Section 7: Communications
for details on the serial port.
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