Circutor CVM-C11, Instruction Manual

Page: 16 / 106

4.- OPERATION
The
CVM-C11
is a four-quadrant power analyzer (consumption and generation).
The device can operate according to three different measurement conventions:

CIRCUTOR measurement convention.

IEC 61557-12
measurement convention.

IEEE 1459
measurement convention.
The measurement convention is configured in the setup menu, see
“6.8.- MEASUREMENT CONVENTION”.

CIRCUTOR
measurement convention:
0º
90º
180º
-90º
Capacitive
Capacitive
Inductive
Inductive
Generation
Power
Consumption
Power
Single-phase Three-phase
Single-phase
Single-phase
Single-phase Three-phase
Three-phase
Three-phase
k
k
k
k
k
k
k
k
k
k
k
k
k
k
k
k
k
k
k
k
Figure 8: CIRCUTOR measurement convention�

IEC 61557-12 measurement convention:
Q
P
Q1 Q2
Q3
Q4
P < 0 Q > 0 PF < 0
Capacitive
Capacitive
Inductive
Inductive
P < 0 Q < 0 PF
< 0
P > 0 Q < 0 PF
> 0
P > 0 Q > 0 PF > 0
Operation in the 4 quadrants (Q1, Q2, Q3, Q4)
0 +
0 +
cos φ > 0
cos φ > 0
Q1
Q4
+ 1
+ 1
cos φ values in the receiver operating mode (Q1,Q4)
Figure 9: C
onvenio de medida IEC 61557-12�
16
CVM-C11
Instruction Manual