User Manual

KEW6310 16.4 Demand measurement
KEW6310 16.6
16.4 Demand measurement ( Range)
(1) Target value (DEM Target)
Display ra nge
Fixed set value (1.000mW ~ 999.9TW)
(2) Predicted value (DEM Guess)
Display range Same decimal point place and unit to target value
Formula
∑
×=
intervaldemandofbeginningfromPeriod
intervalDemand
DEMDEM
GUESS
_____
_
(3) Dema nd va l ue (p res en t va lu e) (ΣDEM)
Display range Same decimal point place and unit to target value
Formula
()
interval
hour
WPDEM
1
×+=Σ
where:
∑
Σ=Σ DEMiDEM
*
1=i
(1P2W×1)
*
2=i
(1P2W×2,1P3W,3P3W)
*
3=i
(1P2W×3,3P3W3A,3P4W)
*
4=i
(1P2W×4)
(4) Load factor
Display range 0.00 ~ 9999.99%
Formula
etT
DEM
DEM
arg
Σ
16.5 Waveform measurement ( Range)
Displayed data 2 waveforms (256 points)
Scale change 0.1/ 0.2/ 0.5/ 1.0/ 2.0/ 3.0 times of rating
16.6 Harmonic measurement ( Range)
Meas. Method PLL synchro system
Measuring range 45 ~ 65Hz
Analysis order 1 ~ 63rd
Window wi dth 2 cycles
Window type Rectangular
Analysis data 512 points
Analyzing rate approx once / 2 sec
Display item
(1) V olt age, current, THD, frequency
(2) V olt age/ Rate of content/ Phase angle at each order
Save item
(1) V olt age, current, THD
(2) V olt age/ Phase angle at each order