YOKOGAWA WT210, User Manual, Page: 122 / 316

7-1
IM 760401-01E
Harmonic Measurement Function (Option)
7
Chapter 7 Harmonic Measurement Function (Option)
7.1 Harmonic Measurement Function
This chapter explains the harmonic measurement function which can be applied to
normal measurements of voltage, current and power.
Measured/Displayed Items
After having set the harmonic measurement function to ON, the harmonic component of
voltage, current, or active power, will be mesured and displayed for one of the input
elements (target element, not applicable for the WT210). Depending on the setting of
the display function, the display changes as follows.
Display
A
Display function
No display function lit
FUNCTION
V A W V Hz
FUNCTION
FUNCTION
FUNCTION FUNCTION
A Hz
V
A
W
FUNCTION FUNCTION FUNCTION
No display function lit
Display function V, A, W
FUNCTION
V A W PF
FUNCTION FUNCTION FUNCTION FUNCTION FUNCTION
V% A%
W% Vdeg A% V% Adeg
FUNCTION FUNCTION FUNCTION FUNCTION FUNCTION
: Displays the harmonic order (1 to 50)
: Displays all rms values (computed values) of 1up to 50
components of voltage, current or active power
FUNCTION
V
A
W
PF
V %
A %
V %
A %
W %
V deg
A deg
: Displays the measured voltage value of the order shown on display A
: Displays the measured current value of the order shown on display A
: Displays the active power measured value of the order shown on display A
: Displays the power factor of the fundamental (1st order)
: Displays the voltage harmonic distortion, proceeded by "t" on display B
: Displays the current harmonic distortion, proceeded by "t" on display B
: Displays the relative harmonic content of the voltage of the order shown on display A
: Displays the relative harmonic content of the current of the order shown on display A
: Displays the relative harmonic content of the active power of the order shown on
display A
: · In case the 1st order (fundamental) is shown on display A:
Displays the phase angle between the voltage of the first order and the current of
the first order
· In case the order 2 to 50 is shown on display A:
Displays the phase angle between the voltage of the first order and each voltage of
the 2nd to 50th order
: · In case the 1st order (fundamental) is shown on display A:
Displays the phase angle between the voltage of the first order and the current of
the first order (same as V deg)
· In case the order 2 to 50 is shown on display A:
Displays the phase angle between the current of the first order and each current of
the 2nd to 50th order
Display function : Displays all rms values (computed values) of 1 up to 50 components of voltage,
current or active power.
: Displays the fundamental frequency of the voltage for PLL synchronization
(displays the measurement value for only the selected voltage input)
: Displays the fundamental frequency of the current for PLL synchronization
(displays the measurement value for only the selected current input)
V, A, W
V Hz
A Hz
Display
B
Display
C