Specifications are subject to change without notice WM30 96 DS 240914

13

WM30 96

Accuracy (According to EN50470-3 and EN62053-23)

kWh, accuracy (RDG) depending on the current

Percentage error limits for class index C

6A (Imax)

2A (Imax)

6A (Imax)

2A (Imax)

5A (In)

1A (Iref)

5A (In)

1A (Iref)

0.25A (Itr)

0.05A (Itr)

0.25A (Itr)

0.05A (Itr)

0.05A (Imin)

0.01A (Imin)

Accuracy limits (Active energy)

Start-up current: 5mA (AV5-6), 1mA (AV4-7)

kvarh, accuracy (RDG) depending on the current

Error

Accuracy limits (Reactive energy)

Start-up current: 5mA (AV5-6), 1mA (AV4-7)

PF=1

PF=L0.5

or C0.8

6A (Imax)

2A (Imax)

6A (Imax)

2A (Imax)

5A (In)

1A (Ib)

5A (In)

1A (Ib)

0.25A

0.05A

0.5A

0.1A

0.1A

0.02A

0.25A

0.05A

sin

j=1

sin

j=0.5

+0.5%

0%

+1%

-0.5%

-1%

+2%

0%

+2,5%

-2%

-2,5%

System variables

Equivalent three-phase voltage

Voltage asymmetry

Three-phase reactive power

Three-phase active power

Three-phase apparent power

Total harmonic distortion

Used calculation formulas

Phase variables

Instantaneous effective voltage

Instantaneous active power

Instantaneous power factor

Instantaneous effective current

Instantaneous apparent power

Instantaneous reactive power

Energy metering

Where:

i= considered phase (L1, L2 or L3)

P= active power; Q= reactive power;

t1, t2 =starting and ending time points

of consumption recording; n= time

unit

Δ

; t= time interval between two

successive power consumptions;

n1, n2 = starting and ending discrete

time points of consumption recording

Three-phase power factor

(TPF)

å

-

=

LL

LL

L L

LL

V

V

V

AS Y

)

(

min

m ax

å

-

=

LN

LN

LN

LN

V

V

V

ASY

)

(

min

max

WM3040Soft parameter progr. and var. reading software

Working mode

Three different working

modes can be selected:

- management of local

RS232 (MODBUS);

- management of a local

RS485 network (MODBUS);

- managed via TCP port

WM3040Soft

Multi-language software

(Italian, English, French,

German, Spanish) for vari-

able reading, instrument

calibration and parameters

programming.The program

runs under Windows

XP/Vista/7