Low Voltage Filter Reactor

Product Profile

In modern distribution grids, load types are becoming more complex and generating more and more harmonic waves. The harmonic current causes increased loss of transformers and lines, and the wrong movement of precision equipment. In severe cases, the harmonic wave creates resonance in the distribution grid, and the capacitor cannot be put into operation or even burn up, endangering the safe operation of the electrical equipment.

Therefore, one can change the impedance value of the line by serializing a resistor in the capacitor circuit and using it in combination with the capacitor. This can prevent harmonics and protect the capacitor. At the same time, the combination of capacitance and inductor has the properties of filtering out harmonics and can be used to govern harmonics.

BKF filter reactor is made of copper core wire or aluminum tape wound, three-phase structure, with iron core and air gap. Finally, it is thoroughly impregnated in vacuum and pressure and cured in a drying furnace to achieve Class H insulation levels.

The key parameter of an electroresistor is the electroresistance rate, i.e. the electroresistance coefficient. The commonly used resistivity is 7%, and the combination of resistors and capacitors is used in grids with less harmonics, such as general industrial and construction projects, where they can absorb a small number of 5 and 7 harmonic currents. For situations such as data centers and special industries where three harmonics are high, a combination of capacitors and resistors with a common electric resistivity of 14% is recommended to mainly inhibit three harmonic waves.


Technical parameters

Frontal and fixed voltage: 230 V ~ 690V 50 / 60Hz
Frontal power: 5 ~ 100 kvar
Electroresistance: 7%, 5.67%, 14% or custom
Linearity: Ln (∑ 1.85In) < 0.95Ln
Circuit Material: Aluminum band or copper wire Circuit
Impregnation method: vacuum impregnation, class H insulation
Insulation level: Un < 1100V, 3 / -KV (line voltage)
Overtemperature Protection: 170 ° C - 180 ° C
Precision of adjustment: -2% ~ + 3%
Environmental temperature: -20 ° C ~ + 45 ° C, maximum + 55 ° C
Altitude: Conventional 1000 meters, customizable to higher
Protection level: IP00
Technical standard: IEC60289, VDE0550-0532, GB / T1094.6-2011