JLLKS(D)G Series Low-Voltage Harmonic Filter Reactor-Jiangsu Laibao Electric Power Co., Ltd.

JLLKS(D)G Series Low-Voltage Harmonic Filter Reactor

Product Overview

The JLLKSG series low-voltage filtering reactor manufactured by our company is designed for use in low-voltage reactive power compensation and passive filtering circuits. When connected in series with filtering capacitors and properly impedance-matched, it effectively filters out harmonic currents generated by harmonic sources. This improves power grid quality, limits inrush currents and switching overvoltages, extends the service life of power capacitors, and plays a significant role in ensuring the safe operation of electrical equipment.

Performance Characteristics

①　Utilizes high-quality imported grain-oriented cold-rolled silicon steel sheets; features low loss, low heat generation, and high linearity; achieves a filtering efficiency of over 60% when matched with appropriate filtering capacitor parameters;

②　Uses Class H high-temperature resistant enameled flat copper wire or copper foil;

③　The entire reactor undergoes Class H varnish impregnation, specifically vacuum impregnation;

④　Low noise, low temperature rise, and high stability;

⑤　Clamps, brackets, fasteners, and other structural components are made of non-magnetic materials;

⑥　Equipped with a temperature protection device.

Technical Parameters

System rated voltage	Single‑phase (e.g., 230V); Three‑phase (e.g., 400V, 660V, 750V, 1000V).
Temperature rise	Core ≤85K, Coil ≤95K.
Reactor noise	≤45dB.
Thermal class	Class H (180°C) or higher.
Protection class	IP00.
Filter reactor linearity	≥98% at 1.8In.
Inductance deviation between any two phases (three‑phase reactor)	≤1%.
Filter reactor overcurrent capability	1.8In.
Manufacturing process	Vacuum varnish impregnation; low noise.
Material	Flat copper wire or copper foil; allows for higher current density and results in lower temperature rise.

Operating Conditions

①　Indoor installation.

②　Altitude: ≤2000m (specify if exceeding 2000m when ordering).

③　Ambient temperature: -40°C to +50°C.

④　Environment: Free from severe mechanical vibration, harmful gas vapors, conductive dust, and explosive hazards.

⑤　Note: Reactors with special specifications (e.g., 3rd or 7th harmonic filter reactors) can be designed and manufactured according to user requirements.