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IM02601004E
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12 Glossary
Gateway
A dedicated computer that attaches to two or more networks
and routes packets from one to the other. In networking, a
device that connects two systems that use different protocols.
GPS
Global positioning system.
Harmonic
The components of the harmonic content as expressed in
terms of the order and rms values of the Fourier series terms,
describing the periodic function.
Ia, Ib, Ic
Phase currents for phases a, b and c respectively.
IMPACC
TM
Standard Cutler-Hammer Integrated Monitoring, Protection
And Control Communications protocol definition for communi
-
cation on the INCOM network.
INCOM
TM
Cutler-Hammer INdustrial COMmunications network.
K-Factor
A derating factor related to the sum of the squares of har-
monic current times the squares of their harmonic numbers
(multiples of the fundamental).
kVA (Kilovolt-Ampere)
One that designates the input kVA or volt-amperes at rated
primary voltage with the secondary terminal short-circuited.
kVAh
Kilovolt-ampere hour.
kVAh
Kilovolt-ampere reactive.
kvarh
Kilovolt amps reactive hours.
kW
Kilowatt.
kWh
Kilowatt hour.
Lag
The phase delay in current with respect to voltage.
Load Profile
The magnitude and duration of loads applied in a prescribed
time sequence, including the transient and steady-state char-
acteristics of the individual loads. The recording, storage and
analysis of consumption data over a period of time for a
particular installation.
Load Shed
The process of deliberately removing preselected loads from
a power system in response to an abnormal condition in order
to maintain the integrity of the system.
mA
MilliAmpere.
mV
MilliVolt.
Maximum Demand
See Peak Demand.
Modbus
A popular industrial communication protocol.
MVAR
Megavolt amperes reactive.
MVARh
Megavolt amperes reactive hours.
MWh
Megawatt hours.
NTP
Network time protocol.
Peak Demand
The greatest of all the demands that have occurred during a
specified period of time; determined by measurement over a
prescribed time interval.
PFA
See, “Power factor”, Apparent.
Summary of Contents for Power Xpert PXM 4000
Page 1: ...User and Installation Manual IM02601004E Power Xpert PXM 4000 6000 8000 ...
Page 8: ...Page vi IM02601004E www eaton ...
Page 19: ...www eaton com IM02601004E Page 11 1 Introduction ...
Page 24: ...Page 16 IM02601004E www eaton ...
Page 36: ...Page 18 IM02601004E www eaton com 2 Quick Start Guide for the Meter Module ...
Page 45: ...www eaton com IM02601004E Page 37 3 Installation 3 8 MeterDimensions ...
Page 46: ...Page 38 IM02601004E www eaton 3 Installation Dimension Con t ...
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Page 75: ...www eaton com IM02601004E Page 67 4 Introduction to Web Server Screens ...
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Page 86: ...Page 78 IM02601004E www eaton 5 Introduction to the Local Graphical Display ...
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Page 128: ...Page 120 IM02601004E www eaton 7 Functions on the Graphical Display ...
Page 164: ...Page 156 IM02601004E www eaton 8 Setup on the Web Server Pages ...
Page 198: ...Page 190 IM02601004E www eaton A MODBUS Communication ...
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Page 252: ...Page 244 IM02601004E www eaton D Diagnostics ...
Page 254: ...Page 246 IM02601004E www eaton D Diagnostics ...