e
Electro Industries/Gauge Tech
Doc # E134-7-15 V1.01
A-6
THD:
Total Harmonic Distortion is the combined effect of all harmonics measured in a
voltage or current. The THD number is expressed as a percent of the
fundamental. For example, a 3% THD indicates that the magnitude of all
harmonic distortion measured equals 3% of the magnitude of the fundamental
60Hz quantity.
Time Stamp:
A stored representation of the time of an event. Time Stamp can include year,
month, day, hour, minute and second and Daylight Savings Time indication.
TOU:
Time of Use.
Variation Strings:
Identification for different variations of a device based on compile-time
switches.
Version Number:
Incremented with the first build after an official release.
Voltage Imbalance:
The ratio of the voltage on a phase to the average voltage on all phases.
Voltage Quality Event: An instance of abnormal voltage on a phase. The events the meter will track
include sags, swells, interruptions and imbalances.
VT Ratio:
The Voltage Transformer Ratio is used to scale the value of the voltage to the
primary side of an instrument transformer. Also referred to as PT Ratio.
Voltage, Vab:
Vab, Vbc, Vca are all Phase-to-Phase voltage measurements. These voltages are
measured between the three phase voltage inputs to the meter.
Voltage, Van:
Van, Vbn, Vcn are all Phase-to-Neutral voltages applied to the monitor. These
voltages are measured between the phase voltage inputs and Vn input to the
meter. Technologically, these voltages can be “measured” even when the meter
is in a Delta configuration and there is no connection to the Vn input. However,
in this configuration, these voltages have limited meaning and are typically not
reported.
Содержание I/O Module
Страница 2: ......
Страница 6: ...e Electro Industries Gauge Tech Doc E134 7 15 V1 01 iv ...
Страница 10: ...e Electro Industries Gauge Tech Doc E134 7 15 V1 01 viii ...
Страница 30: ...e Electro Industries GaugeTech Doc E134 7 15 V1 01 2 16 ...
Страница 44: ...e Electro Industries GaugeTech Doc E134 7 15 V1 01 4 8 ...
Страница 50: ...e Electro Industries GaugeTech Doc E134 7 15 V1 01 6 4 ...
Страница 52: ...e Electro Industries Gauge Tech Doc E 134 7 15 V1 01 7 2 ...
Страница 63: ...e Electro Industries GaugeTech Doc E134 7 15 V1 01 8 4 ...
Страница 65: ...e Electro Industries Gauge Tech Doc E 134 7 15 V1 01 9 2 ...
Страница 72: ...e Electro Industries GaugeTech Doc E134 7 15 V1 01 10 4 ...
Страница 74: ...e Electro Industries Gauge Tech Doc E 134 7 15 V1 01 11 2 ...
Страница 81: ...e Electro Industries Gauge Tech Doc E 134 7 15 V1 01 13 2 ...
Страница 87: ...e Electro Industries GaugeTech Doc E134 7 15 V1 01 14 4 ...
Страница 89: ...e Electro Industries Gauge Tech Doc E 134 7 15 V1 01 15 2 ...