YOKOGAWA CW140, User Manual, Page: 121 / 292

12-1
IM CW140-E
Harmonics Measure Mode
12
Chapter 12. Harmonics Measure Mode
12.1 Showing Tables in Harmonics
Measure Mode
In the Harmonics Measure mode, the CW140 analyzes 1st- through 13th-
order harmonics across the 45-65 Hz frequency range of an input signal's
fundamental wave (except with input signals from 2-load systems).
The data items that can be analyzed are discussed below. In addition to
tabular format, the CW140 can show analysis results in graphic format (see
Section 12.2).
In this chapter, you measure and analyze the 1st- through 13th-order
harmonics of such variables (on-screen option of the MEASURE ELEMENT
field) as voltage, current or power that you have selected.
●
When the MEASURE ELEMENT Data Item Is Voltage or Current
Rms value (V) Content (%) Phase angle (
°
)
Rms value (A)
Data items for table
Data items for section
marked (1) below
Total (ALL) rms value (V) Total Harmonic Distortion
Total (ALL) rms value (A) Distortion factors - IEEE (%) and CSA (%)
Fundamental wave frequency(Hz)
●
When the MEASURE ELEMENT Data Item Is Power
Power value (V) Content (%) Phase angle ( ° ) Data items for table
Data items for section
marked (2) below
Total (ALL) power (W)
Total (ALL) power factor
Fundamental wave frequency (Hz)
MEASURE ELEMENT data item
• Voltages V1 to V3
(Selected using the WIRING data item)
• Currents I1 to I3
(Selected using the WIRING data item)
• Power
Select between the GRAPH and TABLE options.
Select between the ODD and EVEN options.
Section (1) [or (2)]
This section can be switched to a view
of harmonics measurement information
or logging information.
(Select from the DISPLAY/NOT DISPLAY
options of the LOGGING INFORMATION
data item.)