User Manual

ManualsBrandsAtec ManualsEquipmentYokogawa-WT1800

Measurement

High-precision, wide-range, fast-sampling, simultaneous harmonic measurement

Functions

New functions greatly support power measurements

Saving/Communication

A wide variety of communication and data saving functions

oltage and current

requency bandw

dth 5 MHz (-3 dB, typ

cal)

Faster switching frequencies increasingly require measurements in a wider range. The WT1800 provides a voltage and current frequency bandwidth (5

MHz

)

old wider than the previous measurement ran

e and is capable o

more correctly capturin

ast switchin

nals.

Particular volta

e and current ran

e selectabl

Wide voltage and current input ranges have the advantage o

extending the measurement application range. However, the downside is

hat the response time of the auto range tends to slow down. A range configuration function solves this problem.

ince only the selected

ran

(

ective measurement ran

)

can be used, the ran

e can be chan

ed up or down more quickly.

.1 Hz low-speed s

nal power measurement and max. 50 ms h

h-speed data collect

The

requency lower limit has been reduced to 0.1 Hz

rom the previous 0.5 Hz

(

old lower than the previous model

)

to meet the requirement

or power

measurements at a low speed. Furthermore, high-speed data collection at a data update rate o

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

tions from 50 ms to 20 s.

armon

c measurement at t

e 50 ms

ata up

ate rate

s poss

ibl

e up to t

e 100t

de voltage and current range allow

ng d

rect

nput

Direct input of measurement si

nals makes it possible to measure very small current that can hardly be measured with a current sensor. The WT1800

provides a direct input volta

e ran

rom 1.5 V to 1000 V

(

12 ran

)

and a direct input current ran

rom 10 mA to 5 A

(

9 ran

)

rom 1 A to 50 A

(

6 ranges

Reduction of low power-factor error to 0.1% of apparent power (2

3 of previous model

)

A power-

actor error is one o

the important elements to ensure high-accuracy measurements even at a low power

actor. 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 Yoko

awa’s previous model WT1600

*1: Applicable to a general-purpose high-precision three-phase power analyzer as o

February 2011 (according to Yokogawa’s survey

)

Dual harmonic measurement (option)

The industr

’s first two-line simultaneous harmonic measurement is available, in addition to simultaneous measurement of harmonic and

normal measurement items such as volta

e, current, and power values. Previously, harmonic measurements o

input and output si

nals

had to be performed separately. With the WT1800, harmonic measurements of input and output can be performed simultaneously.

wo-channel external s

gnal

nput

s ava

lable

or power measurement and analog s

gnal data

easurement (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

Electrical angle measurement is also supported. Motor evaluation function allowing A-phase, B-phase,

and Z-phase inputs

(

option available in combination with external si

nal input

)

Pulse or analog signals can be input

or rotation speed and torque signal measurements. The motor evaluation

unction o

the WT1800

makes it possible to detect the rotation direction and measure the electrical angle, which is not possible with Yokogawa’s previous model

User-de

ned event

unct

For the

irst time in the hi

h-precision power analyzer industry, an event tri

unction is available to meet the requirement to capture

only a particular event. For example, a trigger can be set

or measured values that

all out o

the power value range

rom 99 W to 101 W

and only data that meets the trigger condition can be stored, printed, or saved to a U

B 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 clocklBNC terminal for external clock

BNC terminal for

synchronized measurement

lBNC terminal for

synchronized measurement

Voltage input terminallVoltage input terminal

External current sensor

input terminal (/EX option)

lExternal current sensor

input terminal (/EX option)

Direct current input terminallDirect current input terminal

GP-IB interfacelGP-IB interface

Ethernet communication interfacelEthernet communication interface

USB communication interfacelUSB communication interface

RGB output (/V1 option)lRGB output (/V1 option)

DA output (/DA option)lDA output (/DA option)

Torque 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)

P-IB, Ethernet, and U

B communication functions available as standar

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

InheritanceInheritance

The

perspect

ive

e e

ffi

cie

use

of en

erg

y i

s b

oos

tin

g d

ema

for

ver

ter

s t

o c

onv

ert

z or

power to DC pow

er,

grid connection controllers to control reverse power flow

occ

urr

ing

e t

o e

xcess power, and battery chargers

dischargers

The

180

0 i

s c

apa

ble

mul

tan

eou

sly

easuring

e h

arm

oni

c d

ist

ort

ion

inp

and

tpu

t c

urr

ent

ese

vic

es.

Challen

the common wisdom that

“h

armonic measurement is limited to a

sin

gle

ne,

”

WT1

800

pab

per

for

min

g t

wo-

lin

e s

imu

lta

neo

har

mon

meamea

sur

emeeme

ntsnts

. T

WT1

800

also capable of measurin

up to the 500th

order harmonic even at hi

undamental

frequencies such as a 400 Hz frequen

cy.

Wit

h Y

oko

gaw

a’s

evi

ous

wer

aly

zer

model, you

hav

e to select numerical formats suc

as 4-value, 8-value, and 16-value view to display screens, so y

can

not

exi

bly

spl

creen to v

ew t

parameter

n t

ze an

at t

The

180

0 h

bro

ken

e m

old

d i

capable of read

ing

er-

cre

ate

d i

mag

fil

(BM

dis

pla

y s

cre

ens

low

viewin

data in a

lexible

ormat. Thus the

isplay screen can be customized in a

mor

e user-frien

dly

d e

asy

-to

-re

man

ner

For details, see Pages 5 and 6 For details, see Pages 5

For details, see

Pages

5 and 6

For details, see

Pages

For details, see

Pages

For details, see

Pages

4 and 8

For details, see

Pages

Product Features Functions/Displays Applications Software Comparisons Explanations Specifications

Blue: Standard

Red: Option

Blue: Standard

Red: Option

The photograph shows the model with the /MTR option.

Rear panel

NEWNEW

First in industryFirst in industry

First in industryFirst in industry First in industryFirst in industry

Many features are available that are a first in the power measurement industry

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

Dual Harmonic Measurement

Customize Display Screen