☷ Product Description
Low voltage medium capacity three-phase reactor (55A-130A) is mainly suitable for harmonic control, current limiting protection, and power quality optimization needs of 15kW-75kW medium and low voltage power systems. Its technical characteristics and application scenarios are different from those of small current specification products. ▶ 1. Strengthen current carrying capacity and optimize winding：Using H-grade (180 ℃) or above DuPont paper wrapped aluminum flat wire (with a cross-sectional area 3-5 times larger than the low current specification), the cross-sectional area of the 55A specification winding is ≥ 25mm ², and the cross-sectional area of the 130A specification winding is ≥ 65mm ² to reduce winding losses. ▶ 2. Insulation and stability upgrade：The iron core winding has an electrical strength of 4000VAC/50Hz/5mA/60s without breakdown, and an insulation resistance of ≥ 100M Ω (detected by a 500V megohmmeter), suitable for transient overvoltage scenarios in 600V systems (such as frequency converter start stop impact);
☷ Product Advantages
▶ Ultimate stability, ensuring production：Significantly suppress power grid harmonics and voltage distortion, prevent sensitive equipment (such as PLC, sensors) from malfunctioning, reduce unplanned shutdowns, and improve overall equipment efficiency (OEE). ▶ Proactively protect and extend investment：Effectively limit the surge current at the moment of closing the frequency converter, provide buffer protection for valuable frequency converters and capacitor banks, extend their lifespan by more than 30%, and reduce maintenance costs. ▶ Energy conservation and consumption reduction, creating value：By increasing the system power factor (up to 0.95 or above), reducing the transmission of reactive current in the line, lowering line and transformer losses, directly saving electricity costs, and avoiding fines from power companies. ▶ Durable and Fearless Environment：Equipped with H-grade (180 ℃) insulation system and vacuum impregnation process, it has excellent heat resistance, moisture resistance, corrosion resistance, and vibration resistance, and can operate stably even in harsh environments such as metallurgy and chemical industry. ▶ Accurate performance and efficient filtering：The core adopts high-quality silicon steel sheets with high magnetic conductivity and low loss, ensuring precise and stable inductance values (tolerance ± 5%), excellent linearity in the full working current range, and significant filtering effect.
☷ Application Scenarios
Our reactors are widely used in all industrial fields that require improved power quality and drive protection: 1. Medium to high power frequency conversion system ▶ Inverter input terminal: 55A-80A reactors are connected in series with the 30kW-55kW inverter input terminal to suppress the 3/5th harmonic generated by the inverter and avoid harmonic pollution of the power grid; ▶ Inverter output terminal: 100A-130A reactor compatible with 75kW inverter, reduces output voltage, protects motor insulation, and reduces motor operating noise. 2. Low voltage reactive power compensation and harmonic control ▶ Medium capacity compensation cabinet (50kVAR-150kVAR): 80A-130A filter reactor and capacitor are connected in series to form a detuning filter, which absorbs harmonic currents while avoiding resonance between the compensation capacitor and the system, and improves the power factor to above 0.92; ▶ Photovoltaic/wind power small inverter station (10kW-50kW): 55A-100A filtering reactor is connected to the inverter output terminal to ensure that the grid connected current THD is ≤ 3%, in compliance with GB/T 19964 Photovoltaic Grid Connection Standard. 3. Industrial power distribution and equipment protection ▶ Low voltage distribution branch circuit (rated current 100A-200A): 55A-80A current limiting reactor limits the peak short-circuit current to ≤ 20kA, protecting equipment such as circuit breakers and contactors from overload impact; ▶ Electrolysis/Electroplating Power Supply: A 100A-130A DC smoothing reactor is connected in series with the output terminal of the rectifier to stabilize the 600V rectified DC current and reduce the impact of ripple on the electrolysis process (such as improving coating uniformity by 15%).
☷ Product Display
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