Technical documentation
Rev. 02
Reactive Factor Controller CX plus
80
19 Transformer compensation
The compensation of a transformer for which no fixed step is available can be solved in two ways with
the CX plus:
19.1 Setting of the offset reactive power:
The current transformer is installed at the output side of the transformer
consequently, the reactive
power of the transformer is not measured by the CX plus.
By setting an offset reactive power = reactive power of the transformer (SETUP/312), this is added to
the measured reactive power (within the system).
Procedure:
Determine the inductive reactive power of the transformer. Enter the determined value in the SETUP
menu "312" in order to also compensate the transformer.
Function:
The set offset reactive power (Q offset) is added to the measured reactive power and considered in
the control deviation. Therefore, the COS
is
always
shown before the transformer. This means, that
the COS
within the system may be capacitive, but the measurement of the electrical power supplier
measures the required COS
.
