CARLO GAVAZZI WM5-96 - PROGRAMMING Bedienungsanleitung PDF herunterladen (Seite 10)

10 Specifications ar

e subject to change without notice WM5 96 DS ENG 210708

WM5-96

System variables

Equivalent thr

ee-phase voltage

oltage asymmetry

Thr

ee-phase reactive power

Neutral current

Thr

ee-phase active power

Thr

ee-phase apparent power

Used calculation formulas

Accuracy

kWh, accuracy (RDG) depending on the current

Error

10A (Imax)

5A (In)

0.25A

(0.05In)

0.5A

(0.1In)

0.05A

(0.01In)

0.1A

(0.02In)

+1.0%

Class 0.5 accuracy limits (Active energy) EN62053-21

5(10A) Start-up current: 5mA

kvarh, accuracy (RDG) depending on the current

Error

Class 2 accuracy limits (Reactive energy) EN62053-23

5(10A) Start-up current: 5mA

PF=1

PF=L0.5

or C0.8

10A (Imax)

5A (In)

0.25A

(0.05In)

0.5A

(0.1In)

0.1A

(0.02In)

0.25A

(0.05In)

sin

ϕ=1

sin

ϕ=0.5

Phase variables

Instantaneous effective voltage

Instantaneous active power

Instantaneous power factor

Instantaneous effective current

Instantaneous appar

ent power

Instantaneous reactive power

Energy metering

Wher

i= consider

ed phase (L1, L2 or L3)

P= active power; Q= r

eactive power;

, t

=starting and ending time points

of consumption r

ecor

ding;

n= time

unit;

∆

t= time interval between two

successive power measur

ements;

, n

= starting and ending discr

ete

time points of power r

ecor

ding

An = A

0.5%

PF=1 PF=L0.5

or C0.8

2.5%

+2%

-1.0%

-0.5%

-2.5%

-2%

∑

−

LLLL

ASY

)(

minm ax

Thr

ee-phase power factor

(TPF)

∑

−

LNLN

ASY

)(

minmax

Class 0.5

Class 2

+0.6%

-0.6%

sinϕ=1

Code Description Slot A Slot B Slot C Slot D

AO1058 1 relay output A0 B0 C0 D0

AO1059 1 open coll. output A0 B0 C0 D0

AO1035 2 relay outputs A0 A1 B0 B1 C0 C1 D0 D1

AO1036 2 open coll. outputs A0 A1 B0 B1 C0 C1 D0D1

O1037

open coll. outputs

Digital outputs important note

he grey-marked digital outputs are acti-

vated for a while during the instrument

start-up, therefore they are not suggested

for pulse output purpose.

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 16 17

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