Circutor OPTIM HYB Series, Инструкция по эксплуатации

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7.-
Once you have finished programming the CVM-MINI-RS485, check the readings on the
display: phase-phase voltage and phase-neutral voltage values for each phase, current of each
phase, active power of each phase, reactive power of each phase and power factor ( cos φ ) of
each phase.
It is important to confirm that the values on the display are logical in terms of the features of the
network being compensated.
It is essential to ensure the correct correlation between the voltage and current measurement
signals (phase concordance) and that there are no negative active power values, which would
indicate that there is a current transformer with inverted polarity or an incorrect phase sequence
between voltages and currents. For example: if the current signal for phase 1 does not corre-
spond with the voltage phase 1, and instead corresponds with another phase.
If these incorrect values are shown on the display, recheck the position of the current transform-
ers and check for any connection errors that may have occurred.
As a guideline, remember that in a standard installation with a normal load level, the cos φ
measured by each phase should range between 0.5 and 0.95 inductive.
Figure 17
shows the correct connection of the current transformers with respect to the connec-
tion of the OPTIM HYB capacitor bank to the network.
L1
L2
L3
N
RED CARGA
3x400 V / 1x230 V - 50 Hz
L1
L2
L3
S1
N
TB1
BATERÍA DE
CONDENSADORES
1S1 1S2
S1 S2
S1 S2
S1 S2
T.I.1
T.I.2
T.I.3
2S1 2S2 3S1 3S2
Figure 17: Connection of 3 current transformers (CT) to the OPTIM HYB capacitor bank.
8.- Once the OPTYM HYB capacitor bank and the current transformers are connected, discon-
nect the panel by opening the general quadrupole switch inside the capacitor bank (OFF posi-
tion) and check that the LEDs of the Computer HYB regulator turn off, indicating no voltage.
Then close (put in I position, with the lever in up position) all the protection circuit breakers
on the power circuit
, including the three-pole circuit breakers on the three-phase stages and
the unipolar circuit breakers on the single-phase stages.
24
OPTIM HYB Series
Instruction Manual