Schweitzer Engineering Laboratories SEL-787-3 - SEL-787-3 E;S Front-Panel Diagram; Front Panel Layout; SEL-787-3 E Rear- and Side-Panel Diagrams; Rear and Side Panel Layouts

SEL-787-3, -4 Data Sheet Schweitzer Engineering Laboratories, Inc.
22
SEL-787-3E/S Front-Panel Diagram
Figure 20 Front Panel With Default Configurable Labels
SEL-787-3E Rear- and Side-Panel Diagrams
(A) Rear-Panel Layout (B) Side-Panel Layout
Figure 21 SEL-787-3E With Dual-Fiber Ethernet, EIA-232 Communication, 3 DI/4 DO/1 AO Option
LOCK
DISABLED
ENABLED
CLOSE
CLOSE
TRIP
AUX 1
BRKR3
CLOSED/OPEN
SELECTED
BRKR2
CLOSED/OPEN
SELECTED
BRKR1
SEL-787
TRANSFORMER PROTECTION RELAY
AUX 2
ENABLED
TRIP
DIFF
INST OC
TOC
O/U VOLT
O/U FREQ
V/Hz
Relay Powered Properly/Self-Tests are Okay
Trip Occurred
Differential Trip
Instantaneous/Definite-Time Overcurrent Trip
Inverse-Time Overcurrent Trip
Over-/Undervoltage Trip
Over-/Underfrequency Trip
Volts/Hertz Trip
CLOSED/OPEN
SELECTED
BREAKER OPEN