1.2
SEL-700G Relay
Instruction Manual
Date Code 20170814
Introduction and Specifications
Features
connect an external zero-sequence voltage input. In such an application, the
setting EXT3V0_X must also be set accordingly. Refer to Section 4:
Protection and Logic Functions for more details.
The SEL-700G offers an extensive variety of protection features, depending
on the model and options selected. Table 1.2 lists the protection features
available in different models. Elements using X-side inputs have an 'X' added
to them. For example, Phase Overcurrent elements using X-side CT inputs are
designated as 50PX while Phase Overcurrent elements using Y-side CT inputs
are designated as 50PY.
Table 1.1
Current (ACI) and Voltage (AVI) Card Selection for SEL-700G Models
Model
Description
Slot Z Card
(MOT Digits)
Slot Z Inputs
Slot E Card
(MOT Digits)
Slot E Inputs
700G0
Basic generator protection
4 ACI/3 AVI
(81, 82, 85, 86)
IAX, IBX, ICX, IN,
VAX, VBX, VCX
(OX)
700G0+ Basic generator protection plus (see
Table 1.2 for additional protection
elements)
4 ACI/3 AVI
(81, 82, 85, 86)
IAX, IBX, ICX, IN,
VAX, VBX, VCX
2 AVI (74)
VS, VN
700G1
Full generator protection
4 ACI/3 AVI
(81, 82, 85, 86)
IAX, IBX, ICX, IN,
VAX, VBX, VCX
3 ACIE
(73, 77)
IAY, IBY, ICY
700G1+ Full generator protection plus (see
Table 1.2 for additional protection
elements)
4 ACI/3 AVI
(81, 82, 85, 86)
IAX, IBX, ICX, IN,
VAX, VBX, VCX
3 ACI/2 AVI
(72, 76)
IAY, IBY, ICY, VS, VN
700GT
Intertie protection
1 ACI (84, 88)
IN
3 ACI/4 AVI
(71, 75)
IAY, IBY, ICY,
VS, VAY, VBY, VCY
700GT+ Intertie and generator protection
4 ACI/3 AVI
(81, 82, 85, 86)
IAX, IBX, ICX, IN,
VAX, VBX, VCX
3 ACI/4 AVI
(71, 75)
IAY, IBY, ICY,
VS, VAY, VBY, VCY
700GW
Basic wind generator protection
3 ACIZ (83, 87)
IAX, IBX, ICX
3 ACIE (73, 77)
IAY, IBY, ICY
Table 1.2
Protection Elements in SEL-700G Models
(Sheet 1 of 2)
PROTECTION ELEMENTS
Basic
Generator
Protection
Basic With
Intertie
Protection
Intertie and
Generator
Protection
Wind
Generator
Protection
21C, 25,
64G, 78
21C, 78,
87
21C, 25,
64G, 78, 87
700G0
700G0+
700G1
700G1+
700GT
700GT+
700GW
87
Phase Differential
x
x
87N
Ground Differential
x
x
x
x
x
REF
Restricted Earth Fault
x
x
x
x
x
64G
100% Stator Ground
x
x
64F
Field Ground
x
x
x
x
x
x
40
Loss of Field
x
x
x
x
x
49T
Thermal Overload
x
x
x
x
x
49RTD
RTDs
x
x
x
x
x
x
x
46
Current Unbalance
x
x
x
x
x
24
Volts/Hz
x
x
x
x
x
78
Out of Step
x
x
x
INAD
Inadvertent Energization
x
x
x
x
x
21C
Compensator Distance
x
x
x
51C
Voltage-Controlled TOC
x
x
x
x
x
Summary of Contents for SEL-700G Series
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