Circutor CVM-C4 Series, Инструкция по эксплуатации

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14
CVM-C4
Instruction Manual
4.- OPERATION
4�1�- MEASURING PARAMETERS
The CVM-C4 is a four-quadrant power analyzer (consumption and generation) that operates according
to the
IEC
measurement convention (
Figure 9
).
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: IEC measurement convention�
The device displays the electrical parameters shown in
Table 5
.
Table 5: Measuring parameters
Parameter Units
Phases
L1-L2-L3
Total
III
Phase-Neutral Voltage k/V

Phase-Phase Voltage k/V

Current k/A

Frequency Hz

Active Power M/kW
 
Reactive Power M/kvar
 
Apparent Power M/kVA
 
Power factor PF
 
THD Voltage %

THD Current %

Reactive energy (consumption and generation) M/kWh

Active energy Tariff 1 and 2 M/kWh

Reactive energy (consumption and generation) M/kvar

Reactive energy Tariff 1 and 2 M/kvar

Harmonic distortion rate ( THD ) is defined as the ratio between the RMS value of the harmonic content
of the voltage and/or current and the value of the fundamental component: