GL.2
SEL-400 Series Relays Instruction Manual Date Code 20171006
Glossary
Access Level P—ANSI Standard Device Numbers
Access Level P
A relay command level you use to access all Access Level 1 and Access Level B
(Breaker) functions plus Protection, SEL
OGIC, Alias, Global, Group, Breaker
Monitor, Front Panel, Report, Port, and DNP3 settings.
ACSELERATOR Architect
SEL-5032 Software
ACSELERATOR Architect is an add-on to the ACSELERATOR QuickSet Suite that
uses the IEC 61850 Substation Configuration Language to configure SEL IEDs.
ACSELERATOR QuickSet
SEL-5030 Software
A Windows-based program that simplifies settings and provides analysis support.
ACSI
Abstract Communications Service Interface for the IEC 61850 protocol. Defines
a set of objects, a set of services to manipulate and access those objects, and a
base set of data types for describing objects.
Active Settings Group
The settings group that the relay is presently using from among six settings
groups available in the relay.
ADC
Analog to Digital Converter. A device that converts analog signals into digital
signals.
Admittance
The reciprocal of impedance, I/V.
Advanced Settings
Settings for customizing protection functions; these settings are hidden unless
you set EADVS := Y and EGADVS := Y.
Alias
An alternative name assigned to Relay Word bits, analog quantities, default
terminals, and bus-zone names.
Analog Quantities
Variables represented by such fluctuating measurable quantities as temperature,
frequency, current, and voltage.
AND Operator
Logical AND. An operator in Boolean SELOGIC control equations that requires
fulfillment of conditions on both sides of the operator before the equation is true.
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 the following:
21 Distance element
24 Volts/Hertz Element
25 Synchronism-check element
27 Undervoltage Element
32 Directional Elements
49 Thermal Element
50 Overcurrent Element
51 Inverse-Time Overcurrent Element
52 AC Circuit Breaker
59 Overvoltage Element
67 Definite-Time Overcurrent
79 Recloser
86 Breaker Failure Lockout
89 Disconnect
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