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filter reactor, is used to reduce the amplitude of the ripples in the DC current of the rectifier circuit, and can form the circuit resonant to a certain frequency together with capacitor to eliminate the voltage or current of a ceritain harmonic in the power circuit. It connects in series with with the shunt capacitor to form the resonant circuit to filter out the designated high harmonics. The branch circuit of the filter is capacitive to the fundamental frequency, and can meet the requirements of reactive compensation...
Starting reactors are particularly used in the current limiting reactor of the large motor partial voltage starter, it connects in series with the three phase windings of the three phase asynchronous motor, that is, each winding of the reactor together with the each phase winding of the motor forms the Y-connection or D-connection way. When start the motor, the reactor was put in, the starting current which limit the motor is in the appropriate values, and at that moment, ciruit impedence is small, and the current is big...
Shunt reactors are used in the power grid system, to inhibit the end line voltage rise for the line capacity reactive in the transmission lines of light load. The connection of the shunt reactor can reduce the potential supply current of the system earthing fault, which is useful to eliminate the self -excitation of the generator. For the large capacity, the resin cast reactors are usually single phase reactor, form three phase reactor by three piece ...
Dry core series reactor is the important reactive compensation equipment of the power system. It connects in series with capacitor, can effectively inhibit high harmonics, and limit the switch-off flow and the operation voltage, is helpful to the increase of the power supply quality and the safe and reliable operation of the grid. The product is of unique design, new structure, new technology and thus ensure the good mechanical and electrical performance...
The function of the earthign transformers id to introduce the neutrality poit for those system without the neutrality poit, the neutrality point on the earth through the arc suppression, the windings of the earthing transformer are Z-wiring, and the wiring method has the features as the follows:
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It is ofen used to balnce the dynamic three-phase in the lines, and to regulate the three-phase, to improve power grid quality and keep the electric equipment free from damage.
Generally, it used to reduce the harmonic components of the DC system voltage and current, and it can effectively inhibit the rising speed of fault current under the fault circumstance, limit the peak value of the short-circuit current. It is usually used in the HV DC transmission system or connects in series with large rectification feed motor of the iron and steel industry and nonferrous metallurgy industy...
Automatic tracking arc suppression coil compensation device applies the automatic tracking arc suppression coil compensation technology and supporting single phase earthing computer line section technology. The complete device includes neutrality poit isolation switch, Z-type earthing transformer, adjustable capacity arc suppression coil, damping pressure limiting resistance box, and controller. The earthing transformers is used in the unearthing system of the neutrality point, and to lead the neutrality point...
