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The dry half iron-core core and magnetic shield structure reactor is designed to increase the columnar iron core inside the dry type air core reactor, and the iron core needs to surround the entire coil, thereby saving a large amount of core material; the core column is integrally formed by epoxy casting, and the whole Compact, sturdy, high mechanical strength, low noise, in addition to the characteristics of air core reactors, the volume of hollow reactors is reduced by 30 to 50%, and the loss is reduced by 20 to 30%.
The connection of the reactor is divided into two ways: series
connection and parallel connection. Series reactors usually play a
role in suppressing harmonics and limiting inrush current, and
shunt reactors are often used to compensate for capacitive currents
in transmission lines.
(1) Dry-type half-iron core shunt reactor: In the ultra-high
voltage long-distance power transmission system, it is connected to
the tertiary coil of the transformer. It is used to compensate the
capacitive charging current of the line, limit the system voltage
rise and operating overvoltage, thereby reducing the system
insulation level and ensuring the reliable operation of the line.
(2) Dry-type half-iron core series reactors are installed in the capacitor circuit
to suppress the inrush current when the capacitor circuit is put
into operation. At the same time, it also forms a harmonic circuit
with the capacitor bank to filter out specific harmonics.
(1) Dry-type semi-iron core reactor puts the iron core column in
the hollow core of the hollow reactor, without enclosing the entire
coil, and the iron core consumption is small;
(2) The core column is made of high-quality low-loss imported
cold-rolled silicon steel sheet, which has high magnetic
permeability, small coil diameter, low loss and low energy
consumption;
(3) The core column adopts integral vacuum epoxy casting molding,
which is dense and strong as a whole, with high mechanical strength
and low noise. The reactor can be directly used outdoors after
being treated with special protective measures, without being
restricted by any environmental conditions;
(4) The traditional concept believes that the volt-ampere
characteristic of a reactor with an iron core is nonlinear, while
the volt-ampere characteristic of a dry-type half-iron core reactor
presents a large linear characteristic;
(5) In addition to the above-mentioned features, half-iron core
reactors also have many advantages of dry-type air-core reactors:
(1) Use location: indoor or outdoor
(2) Operating environment temperature: -40℃~+45℃
(3) Altitude: 1000 meters (if more than 1000 meters, please specify
when ordering)
(4) The installation site has no gas, vapor, chemical deposits,
dust, dirt and other explosive and corrosive media that seriously
affect the insulation.