Atec Yokogawa-WT1800 - Manual (Page 2)

Measurement High-precision, wide-range, fast-sampling, simultaneous harmonic measurement High-precision, wide-range, fast-sampling, simultaneous harmonic measurement Functions New functions greatly support power measurements New functions greatly support power measurements
Saving/Communication A wide variety of communication and data saving functions A wide variety of communication and data saving functions
Voltage and current frequency bandwidth 5 MHz (-3 dB, typical)
Faster switching frequencies increasingly require measurements in a wider range. The WT1800 provides a voltage and current frequency bandwidth (5
MHz) 5-fold wider than the previous measurement range and is capable of more correctly capturing fast switching signals.
lParticular voltage and current range selectable
Wide voltage and current input ranges have the advantage of extending the measurement application range. However, the downside is
that the response time of the auto range tends to slow down. A range configuration function solves this problem. Since only the selected
range (effective measurement range) can be used, the range can be changed up or down more quickly.
l0.1 Hz low-speed signal power measurement and max. 50 ms high-speed data collection
The frequency lower limit has been reduced to 0.1 Hz from the previous 0.5 Hz (5-fold lower than the previous model) to meet the requirement for power
measurements at a low speed. Furthermore, high-speed data collection at a data update rate of up to 50 ms has been inherited. In addition to normal
measurement data, up to the 500th order harmonic data can be measured and saved simultaneously. The data update rate can be selected from nine
options from 50 ms to 20 s.
* Harmonic measurement at the 50 ms data update rate is possible up to the 100th order.
lWide voltage and current range allowing direct input
Direct input of measurement signals makes it possible to measure very small current that can hardly be measured with a current sensor. The WT1800
provides a direct input voltage range from 1.5 V to 1000 V (12 ranges) and a direct input current range from 10 mA to 5 A (9 ranges) or from 1 A to 50 A
(6 ranges).
lReduction of low power-factor error to 0.1% of apparent power (2/3 of previous model)
A power-factor error is one of the important elements to ensure high-accuracy measurements even at a low power factor. The WT1800 has achieved a
power-factor error (0.1%) that is 2/3 of the previous model, in addition to a high basic power accuracy of ±0.1%.
* Comparison with Yokogawa’s previous model WT1600 *1: Applicable to a general-purpose high-precision three-phase power analyzer as of February 2011 (according to Yokogawa’s survey)
lDual harmonic measurement (option)
The industry’s first two-line simultaneous harmonic measurement is available, in addition to simultaneous measurement of harmonic and
normal measurement items such as voltage, current, and power values. Previously, harmonic measurements of input and output signals
had to be performed separately. With the WT1800, harmonic measurements of input and output can be performed simultaneously.
lTwo-channel external signal input is available for power measurement and analog signal data
measurement (option available in combination with the motor evaluation function)
Power measurements can be performed together with physical quantity data such as solar irradiance or wind power in wind generation.
lElectrical angle measurement is also supported. Motor evaluation function allowing A-phase, B-phase,
and Z-phase inputs (option available in combination with external signal input)
Pulse or analog signals can be input for rotation speed and torque signal measurements. The motor evaluation function of the WT1800
makes it possible to detect the rotation direction and measure the electrical angle, which is not possible with Yokogawa’s previous model.
lUser-defined event function
For the first time in the high-precision power analyzer industry, an event trigger function is available to meet the requirement to capture
only a particular event. For example, a trigger can be set for measured values that fall out of the power value range from 99 W to 101 W
and only data that meets the trigger condition can be stored, printed, or saved to a USB memory device.
First in industry means functions and capabilities available for the first time in the high-precision three-phase power analyzers (according to Yokogawa’s survey).
List of Available Functions
lBNC terminal for external clock lBNC terminal for external clock
lBNC terminal for
synchronized measurement
lBNC terminal for
synchronized measurement
lVoltage input terminal lVoltage input terminal
lExternal current sensor
input terminal (/EX option)
lExternal current sensor
input terminal (/EX option)
lDirect current input terminal lDirect current input terminal
lGP-IB interface lGP-IB interface
lEthernet communication interface lEthernet communication interface
lUSB communication interface lUSB communication interface
lRGB output (/V1 option) lRGB output (/V1 option)
lDA output (/DA option) lDA output (/DA option)
lTorque and rotation speed (A-, B-, and Z-phase terminals, /MTR option)
or external signal input (/AUX option)
lTorque and rotation speed (A-, B-, and Z-phase terminals, /MTR option)
or external signal input (/AUX option)
lGP-IB, Ethernet, and USB communication functions available as standard
5-fold wider than
previous model
5-fold wider than
previous model
*
5-fold wider than
previous model
5-fold wider than
previous model
*
2/3 of
previous model
2/3 of
previous model
*
Inheritance Inheritance
The h pe rsp ective of th e e e effi ffi c cie nt t us use of en erg g y i y i s b s b oos tin tin g d g d e emand for in ver verter ter s t s t c o c onv onv ert ert 50 50
H Hz or 60 60 H Hz AC A power to DC pow er, grid connection controllers to control re ver se pow er flow
occ occ urr urr ing ing du du e t e t o e o xce ss pow er, an d b attery chargers/dischargers.
The T WT WT 180 180 0 i 0 i s c s c apa apa ble ble of of si si mul mul tan tan eou eou sly sly
mea sur ing th h e h e h arm armoni oni c distort ortio ion of f t the
inp inp inp ut ut ut and and nd and d ou ou ou ou o tpu tpu tpu t t c t c t c urr urr urr ent ent ent of of of th th th ese ese ese de de de d d vic vic v vvi es es.
Challenging the commo n wisd om tha t
“h “harmo nic me asurem ent is li mit ed to a
sin sin sin gle gle gle gle le li li lili li ne, ne, ne, e ne ” t t t he he he WT1 WT1 800 00 800 is is is ca ca ca pab pab pab le le le of of
per per pe for for min min n g t g t g t wo- wo wo lin lin lin e s e s e s imu imu i lta ltane neo us us
har ar mon mon ic ic mea mea sur sur eme ements nts T . The WT1 T1 800 8 is is
also capa ble of measurin g u p to t he 500 th
order harmon ic even at high fu nda men tal
frequencies such as a 400 Hz f req uen cy. y
Wit Wit h Y h Y oko oko gaw gaw a’s a s pr pr evi evi ous ous po po wer wer an an aly aly zer zer model , y ou hav e to sele ct num eri cal fo rma ts such
as 4-v alu e, 8-v alu e, and 16 -va lue view to dis play scre ens , so y ou ou ou can ca ca not fl fl fl ll exi exi exi e e bly bly bly di di di spl spl spl sp ay ay ay a a a
scr een to view the de sir ed parame ter in the desi red size and at the desired position .
The The WT WT 180 180 0 h 0 h as as bro bro ken ken th th e m e m old old an an d i d s
capable of reading ng us us er- er-c created i i mag mage e
fil fil es es (BM (BM P) P) as as dis dis pla pla y s y s cre cre ens ens to to a allow
viewing d ata in a flexible format . Thus th e
dis pla y s creen can be custo mized in a
mor mo e u ser-fr ien dly ly an d e d asy -to -re e ad ad
man ner ner.
For details, see Pages 5 and 6 For details, see Pages 5
For details, see
Pages
5 and 6
For details, see
Pages 9
For details, see
Pages 7
For details, see
Pages
4 and 8
For details, see
Pages 5
Product Featur
es
Functions/Displays
Applications
Softw
ar
e
Comparisons
Explanations
Specifications
Blue: Standard
Red: Option Blue: Standard
Red: Option
The photograph shows the model with the /MTR option.
Rear panel
NEW NEW
NEW NEW
First in industry First in industry
First in industry First in industry
First in industry First in industry
First in industry First in industry First in industry First in industry
Many features are available that are a first in the power measurement industry *1
Option
Standard feature
Software (sold separately)
Voltage
range
1.5-1000V
Crest
factor
300(6)
Display
8.4-XGA
Update
rate
50ms-20s
Power Frequency
range
1MHz
Basic Power
Accuracy
±0.1%
Voltage/Current
Frequency
bandwidth
5MHz
(typical)
Inputs
1,2,3,
4,5,6
Comm
USB
Comm
GP-IB
Comm
Ethernet
External
sensor
range
0.05-10V
/EX
Current
range
1-50A
10mA-5A
Harmonic
/G5
Dual
Harmonics
/G6
Delta
Computation
/DT
Add-on
Frequency
/FQ
12ch
Motor
Evaluation
/MTR
Speed
Torque
Auxiliary
Inputs
/US
Analog
2 inputs
USB
memory
Internal
Memory
32MB
Printer
/B5 /V1
RGB
WT Viewer
760122
Software
ffi i t f i b ti d d d f f i i t t t 50
Dual Harmonic Measurement
i l d l h h t l t i l f t h
Customize Display Screen
2 3