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Measurement
pr
es
e
nt
ma
x
mi
n
1L
2L
3Lb
3Lu
3Lu.
A
4Lb
4Lu.
O
4Lu
Power factor PF
●
√ √ √ √ √ √ √ √
Power factor PF1
●
√
√ √
Power factor PF2
●
√
√ √
Power factor PF3
●
√ √
PF incoming inductive
● √ √ √ √ √ √ √ √
PF incoming capacitive
● √ √ √ √ √ √ √ √
PF outgoing inductive
● √ √ √ √ √ √ √ √
PF outgoing capacitive
● √ √ √ √ √ √ √ √
Reactive power factor QF
●
√ √ √ √ √ √ √ √
Reactive power factor QF1
●
√
√ √
Reactive power factor QF2
●
√
√ √
Reactive power factor QF3
●
√ √
Load factor LF
●
√ √ √ √ √ √ √ √
Load factor LF1
●
√
√ √
Load factor LF2
●
√
√ √
Load factor LF3
●
√ √
U
mean
=(U1N+U2N)/2
●
√
U
mean
=(U1N+U2N+U3N)/3
●
√ √
U
mean
=(U12+U23+U31)/3
●
√ √
I
mean
=(I1+I2)/2
●
√
I
mean
=(I1+I2+I3)/3
●
√ √
√ √
Power factors
The
power factor PF
gives the relation
between active and apparent power. The
PF has a range of -1...0...+1, where the sign
gives the direction of energy flow.
The
load factor LF
is a quantity derived
from the PF, which allows making a
statement about the load type. Only this
way it's possible to measure a range like
0.5 capacitive ... 1 ... 0.5 inductive in a
non-ambiguous way.
The
reactive power factor QF
gives the
relation between reactive and apparent
power.
