Power Quality Improvement Apparatus
DFC-B parallel type APF
DFC-B parallel type APF applied with DSP intelligent monitor and
on-line current tracing technology to compensate harmonic current
dynamically. The response time achieve to 20ms. It is suitable for
dives of harmonic source of current type that has serious
contaminating the mains power and would require suppression and
compensation. Typical example would be: thyristor rectification in
a DC speed of control arc furnace and device of rectification, and
response time fast. The harmonic, reactive, three voltage
unbalance, voltage fluctuation can be compensated. | | DFC-C series type APF
DFC-C Series type APF is used for suppression of harmonics voltage
in network supply, which total distortion is quite high. It is
applied to solve harmonics, voltage fluctuate, voltage flash,
three-phase unbalance and power factor low and so on in network
supply when the load is sensitive to voltage quality of power
network. So the sensitive load can run in normal state after use
this equipment. It has been used in communication, oil explore
chemical industry etc. | | DFC-H hybrid type APF
The traditional L-C passive filter is composed of series capacitor
and reactive. It is affected by network supply and the function of
capacitor and reactive, the capacitor is easy to resonate with
network, resulting in load system unstable operation. If APF is
only used, the cost will be expensive. DFC-H hybrid type APF s main
characteristic is that it not only can compensate power factor, but
also can eliminate harmonics, and the cost is lower than pure APF.
This equipment won t resonate with power network, it s enhance to
safe of system. The equipment is used in high capacity power
filter, typical examples are: roll steel, arc furnace, electrolytic
cell etc. | | DFC-T low voltage power passive filter
The power passive power filter consists of L-C [reactor and
capacitor] and use intelligent controller, auto throwing off and
switching on, current harmonics elimination efficiency can be
60~90%, power factor can reach to 0.91~0.95, after use this
installation, THD% in main line can be up to public network
standard, and can save electric charge about 7~8%. It is used in
0.4~1KV voltage system not only eliminate harmonics but also
compensate power factor. | | DFC-F untuned type reactive power/filter compensation
Due to over harmonics contents, the cabinet of compensation for the
reactive power cannot be used or the capacitor has been damaged
after using for 0.4~1KV voltage system. The branches of capacitor
series reactive with untuned reactor inductive factor(example 5.5%
6% 13%), the breakage of capacitor can be prevented and the cabinet
of reactive power will work normal. The Installation used the
structure of module, control of intelligence. It is applied for
reactive compensation mainly and suppress harmonics secondly. After
compensation the power factor 0.95 and it suppresses harmonics and
saves energy. | | LBQ type low voltage intelligent continuous compensation
It can continuously compensate reactive power, making power factor
near 1 all the time (the power factor can also be set between 0.80
to 0.99). It avoids under or over-compensation of the network,
makes equipment supply power in best, reduces line lose, saves
electricity energy and can be used in the system that rated voltage
is 0.4KV. | | TBB Series high voltage reactive power compensation
The installation is suitable for the power system of 6-35KV, it is
compensated for the reactive power in power system, increasing
power factor, adjusting of the net voltage, decreasing line loss
of, improving power supply efficiency in power system. It has two
types as indoor distribution type and outdoor compact type. | |
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