Date Code 20170814 Instruction Manual SEL-700G Relay
Section 1
Introduction and Specifications
Inst ruction Manual
Overview
The SEL-700G Relay is designed to provide comprehensive protection,
integration and control features in a flexible, compact, and cost-effective
package. The SEL-700G0 and SEL-700G1 relays provide basic to full
generator protection for small to large machines. The SEL-700GT Relay
provides complete intertie and generator protection. The SEL-700GW Relay
provides dual feeder protection for a multimachine wind generator network
application, including overcurrent protection to feeders, transformers, etc. All
relays provide metering, monitoring, control and communications functions.
Flexible analog and digital input/output options and RTD based protection are
also included.
This manual contains the information necessary to install, set, test, operate,
and maintain any SEL-700G. You need not review the entire manual to
perform specific tasks.
Features
Protection Features
The SEL-700G protection features depend on the model selected. The models
are configured with specific current/voltage input cards. The current/voltage
input cards are located in Slot Z and Slot E in the relay.
Slot Z cards are assigned a two-digit code beginning with the number 8 in the
SEL-700G Model Options Table (MOT, see Models on page 1.5). For
example, 81 in the MOT for Slot Z indicates a SEL
ECT 4 ACI /3 AVI card with
3-phase ac current inputs (1 A nominal), neutral ac current input (1 A
nominal), and 3-phase ac voltage inputs (300 Vac).
Slot E cards are assigned a two-digit code beginning with the number 7 in the
SEL-700G Model Options Table (MOT). For example, 71 in the MOT for
Slot E indicates a SEL
ECT 3 ACI /4 AVI card with the 3-phase ac current
inputs (1 A nominal), 3-phase ac voltage inputs (300 Vac), and VS (Vsysnc)
input (300 Vac).
Slot Z inputs, except for IN, are designated as X-side inputs. Slot E inputs,
except for VN and VS, are designated as Y-side inputs. The SEL-700G has
between 6 and 14 analog inputs, depending on the model and options selected.
Table 1.1 shows the current and voltage inputs for the different models
available. Current inputs are 1 A or 5 A nominal rating and voltage inputs are
300 V continuous rating.
When the VS or VN voltage inputs are unused in the SEL-700G0+,
SEL-700G1+, and SEL-700GT+ models and the setting
DELTAY_X := DELTA, then one of these voltage inputs could be used to
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