Circutor OPTIM HYB Series, Инструкция по эксплуатации

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3.7.- AUXILIARY CONTROL VOLTAGE
Standard OPTIM HYB capacitor banks for 3 x 400 V / 1 x 230 V networks do not require an
auxiliary power supply.
3.8.- EARTH CABLE CONNECTION
Connect the earth terminal of the capacitor bank housed inside the operations panel of the unit
(see
Figure 10)
to the exterior earth connection.
The earth cable section must be selected in accordance with the admissible current limits es-
tablished in the LVR (ITC-BT-19 – Indoor or receiver installations).
Figure 10: Earthing terminal for external earthing connection of the OPTIM HYB capacitor banks
3.9.- CURRENT TRANSFORMER (CT) CONNECTION
For standard units that come with a CVM-MINI-RS485 power analyzer: You
must place 3 current transformers (CT) outside the capacitor bank, one at
each phase, measuring the total current of the load plus the capacitor bank
itself (
Figure 11
).
The standard transformer must have a nominal output of 5 A at the secondary.
For correct measurement of powers and angles, you must connect the CT to
each phase with the direction of the current from P1 to P2 (
Figure 11
) and connect
the secondary (terminals S1, S2) to the terminals with the same name on the ca-
pacitor bank (see
Figure 11
and
Figure 12
).
Avoid the flow of current through the CT's primary before connecting the second-
ary to the S1 and S2 terminals of the capacitor bank.
If the CT must be installed while the installation is under load, short-circuit S1 and
S2 while they are not connected to the capacitor bank.
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Instruction Manual
OPTIM HYB Series