YOKOGAWA WT210, Руководство пользователя, Страница: 128 / 316

7-7
IM 760401-01E
Harmonic Measurement Function (Option)
7
7.4 Setting the Harmonic Order and Displaying the
Measured Harmonic Value
Keys
CHECK RANGE MODE
UPDATE
SCALING AVG LINE FREQ STORE RECALL HARMONICS KEY LOCK
FILTER
A
B
C
VOLTAGE VOLTAGE
VOLTAGE
AUTO
MODE
CURRENT
AUTO
RANGE
MAX HOLD TRIG
CAL
INTEGRATOR
INTEG SET
SHIFT KEY LOCK
1P 3W 3P 3W
3P 4W 3V 3A
OUTPUT
HARMONICS MEMORY
REMOTE
MEAN
CURRENT RMS DC
FUNCTION ELEMENT
MAX HOLD
HOLD
ENTER
RESET
WIRING
START STOP
LOCAL SETUP
1
m
V
k
A
V
TIME
ar
deg
h
h
VA
M W
m
V PF
k
A
M W
m
V Hz
k A
M W
2 3
FUNCTION ELEMENT
1 2 3
FUNCTION ELEMENT
1 2 3
%
The explanation given in this section uses WT230 as an example. For the differences between
the WT210 and the WT230, see section 2.2, “Operation Keys and Functions/Element Display.”
Procedure
The following operations assume that the harmonic measurement function is turned ON.
Setting the Harmonics Order
1. Light up the display function indicator of display A.
Display
A
Light up display function
V
A
W
FUNCTION FUNCTION FUNCTION
FUNCTION
2. Set the harmonics order.
(Display A)
Displaying the Measured Harmonic Values
Displays each measured value after having set the display function of either display B
or C.
FUNCTION
V A W PF
FUNCTION FUNCTION FUNCTION FUNCTION FUNCTION
V% A%
W% Vdeg A% V% Adeg
FUNCTION FUNCTION FUNCTION FUNCTION FUNCTION
Display
B
FUNCTION
V A W V Hz
FUNCTION FUNCTION FUNCTION FUNCTION
A Hz
Display
C
Explanation
Setting the Order of Harmonics
The maximum order for which analysis results can be displayed varies depending on
the frequency of the fundamental.
Example
• When the fundamental frequency is 50 Hz, up to 50 orders can be displayed;
• When the fundamental frequency is 400 Hz, up to 30 orders can be displayed.
When an order is set exceeding the maximum order, display B will change to the dot
display. Refer to Chapter 16 for more details on upper limits of analysis orders.