Schweitzer Engineering Laboratories SEL-351 - Figure 1.3: SEL-351 Relay Inputs, Outputs, and Communications Ports; 0351 X1, and 0351 Xy; Models 0351 X1 and 0351 Xy Have an Extra I;O Board

Date Code 20001006 Introduction and Specifications 1-9
SEL-351 Instruction Manual
Channel IN:
For sensitive earth fault
(SEF) applications, the SEL-
351 Relay should be ordered
with channel IN rated at 0.05
A nominal. See item 3 at the
bottom of Figures 2.11 and
2.13 for additional reference
information.
Delta-Connected Voltages:
SEL-351 Relays ordered with
delta-connected voltage in-
puts are configured internally
as shown below. See Figure
2.8 for an open-delta con-
nection example.
Figure 1.3: SEL-351 Relay Inputs, Outputs, and Communications Ports (Models 0351x0,
0351x1, and 0351xY; Models 0351x1 and 0351xY Have an Extra I/O Board –
See Next 2 Figures)
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