ABB UAC326AE After sales service is provided for the control card of the power supply device

Description

Packaging details: if you need an urgent delivery order, please feel free to contact us, and we will do our best to meet your needs.

Price problem: if you find that other suppliers offer cheaper prices for the same product, we are also willing to provide you with reference prices and give you further discounts.

The distribution authority is responsible for the production and transmission of
the reactive power required by the user installations, and therefore has a series
of further inconveniences which can be summarized as:
– oversizing of the conductors and of the components of the transmission
lines;
– higher Joule-effect losses and higher voltage drops in the components and
lines.
The same inconveniences are present in the distribution installation of the final
user. The power factor is an excellent index of the size of the added costs and
is therefore used by the distribution authority to define the purchase price of
the energy for the final user.
The ideal situation would be to have a cosϕ slightly higher than the set reference
so as to avoid payment of legal penalties, and at the same time not to risk having,
with a cosϕ too close to the unit, a leading power factor when the power factor
corrected device is working with a low load.
The distribution authority generally does not allow others to supply reactive
power to the network, also due to the possibility of unexpected overvoltages.
In the case of a sinusoidal waveform, the reactive power necessary to pass from
one power factor cosϕ1
to a power factor cosϕ2
is given by the formula:
where:
P is the active power;
Q1
,ϕ1 are the reactive power and the phase shifting before power factor
correction;
Q2
,ϕ2 are the reactive power and the phase shifting after power factor
correction;
Qc is the reactive power for the power factor correction.