Operation Manual

ManualsBrandsGossen Metrawatt ManualsMeasuring ToolMAVOWATT 4

GMC-I Messtechnik GmbH 11

Active power and power factor measurement on single-phase AC systems

L1

N

(L2)

L1

(2)

L2

(5)

L3

(8)

I

(3)

I*

(1)

K

k l

L

L1

(2)

L2

(5)

L3

(8)

I

(3)

I*

(1)

L1

N

(L2)

Direct connection:

P (W) = I · U · cos

=  · c

Connection via current transformer:

P (W) = I · U · cos

=  · c · ü

I

L3

(8)

K

k l

L V

vu

U

L1

(2)

L2

(5)

I

(3)

I*

(1)

L1

N

(L2)

Connection via current and voltage

transformer:

P (W) = I · U · cos 

=  · c · ü

I

· ü

u