Hioki 3196 - Page 69

1
2
3
4
5
6
7
8
9
10
11
Measurement Method
6.1 Checking Three-phase Systems
63
(2) Checking the voltage unbalance factor and current unbal-
ance factor
VECTOR
• Check the numerical value for the voltage unbalance factor Uunb.
0%The closer the value is to 0%, the more even three-phase volt-
age is.
The larger the degree of unbalance, the larger the Uunb value.
• Check the numerical value for the current unbalance factor Iunb.
The closer the value is to 0%, the more even three-phase current is
.
The larger the degree of unbalance, the larger the Iunb value.
To change the vector’s display axis
To change the value displayed for the phase angle
LOG, LINEAR
PHASE