Date Code 20170814
Instruction Manual
SEL-700G Relay
Glossary
Instruction Manual
A
Abbreviation for amps or amperes; units of electrical current magnitude.
AC
SEL
ERATOR
QuickSet
SEL-5030
Software
A Windows-based program that simplifies settings and provides analysis sup-
port.
AC
SEL
ERATOR
Architect
SEL-5032 Software
Design and commissioning tool for IEC 61850 communications.
Ambient Temperature
Temperature of the ambient air adjacent to the protected equipment. Measured
by an RTD whose location setting is AMB.
Analog
In this instruction manual, Analog is synonymous with Transducer.
ANSI Standard
Device Numbers
A list of standard numbers used to represent electrical protection and control
relays. The standard device numbers used in this instruction manual include:
21
Distance Element
24
Volts/Hz Element (overexcitation)
25
Synchronism-Check Element
27
Undervoltage Element
32
Directional Power Element
40
Loss of Field Element
46
Current Unbalance Element
49
Thermal Element
50
Instantaneous Overcurrent Element
51
Inverse Time-Overcurrent Element
52
AC Circuit Breaker
59
Overvoltage Element
60
Loss-of-Potential Element
64F Field Ground Element
64G Stator Ground Element
67
Directional Overcurrent Element
78
Out of Step Element
81
Frequency Element
81R Rate-of-Change of Frequency Element
87
Differential Element
These numbers are frequently used within a suffix letter to further designate
application. The suffix letters used in this instruction manual include:
P
Phase Element
G
Residual/Ground Element
N
Neutral/Ground Element
Q
Negative-Sequence (3I2) Element
Apparent Power, S
Complex power expressed in units of volt-amps (VA), kilovolt-amps (kVA), or
megavolt-amps (MVA). Accounts for both real (P) and reactive (Q) power dis-
sipated in a circuit: S = P + jQ.
Summary of Contents for SEL-700G Series
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