A three-phase silicon steel reactor is a three-phase AC power device that utilizes silicon steel laminations as its core material. It plays a vital role in power systems by limiting currents, suppressing harmonics, and improving power quality.
High-Efficiency Three-phase Silicon Steel Inductor
Built with a high-performance silicon steel core, this three-phase inductor is engineered to deliver efficient power conversion, stable current control, and reliable filtering performance. Its optimized magnetic structure helps reduce energy loss while maintaining excellent thermal stability during long-term operation. Suitable for industrial power equipment, renewable energy systems, motor control applications, and other three-phase power solutions, it ensures smooth operation and improved system efficiency.

Key Features
Output Reactor: Placed between the VFD and motor. Compensates for long-cable capacitance effects, suppresses output harmonics, and shields motor insulation from voltage spikes.
Series/Tuning Reactor: In series with power capacitors for harmonic filtering. Absorbs specific harmonics (e.g., 5th, 7th) and suppresses capacitor-switching inrush currents to protect capacitor banks.
| Electric Current (A) | Inductance uH |
| 0 | 705 |
| 5 | 705 |
| 10 | 703 |
| 15 | 703 |
| 20 | 702 |
| 25 | 701 |
| 30 | 700 |
| 35 | 698 |
| 40 | 686 |
Winding Specification
| Winding | Terminal | Wire Specification | Turns | Remarks |
| N1 | 1--2 | QZY-2/180 2*4P_AL | 31TS | Reference turns |
| N2 | 3--4 | QZY-2/180 2*4P_AL | 31TS | Reference turns |
| N3 | 5--6 | QZY-2/180 2*4P_AL | 31TS | Reference turns |
Material
| Item Name | Specification |
| Enamelled Wire | Reference turns |
| Magnetic Core | EI125/B50AW470 |
| Bobbin / Coil Former | EI125/Nylon |
| Insulating Varnish | ET-90C |
| Solder / Solder Tin | Sn99.3Cu0.7 |
Electrical Parameters
| Inductance #1 | 700±10% (1KHz/1V/0A) |
| DC Resistance (Rdc) | 35 mΩ Max |
| Insulation Dielectric Voltage (Hi-pot) | 1.8KVac 2mA-3S |
| Insulation Resistance (IR) | 100MΩ Min(DC500V) |
Target Applications
Harmonic Mitigation / Filtering – Achieved through tuning reactors (combined with capacitors), input/line reactors, and renewable energy grid-connection reactors.
Surge / Inrush Current Suppression – Provided by input/line reactors and current-limiting reactors.
Motor Protection – Delivered via output reactors.
Reactive Power Compensation & Voltage Stabilization – Handled by series reactors (for compensation capacitor banks) and shunt/parallel reactors (for transmission lines).
System Protection – Ensured by current-limiting reactors (for short-circuit current limitation).
Proven Industry Expertise: With over 20 years of industrial experience and a solid foundation established in 2013, we operate five major core industrial lines across multiple specialized manufacturing bases to ensure top-tier product scale and stability.
Global Quality Certifications: Our facilities strictly adhere to international automotive and industrial standards, backed by a complete set of major credentials including IATF16949, ISO9001, ISO14001, ISO45001, and ISO50001.
Strong R&D & Technical Innovation: Driven by dedicated research teams and specialized new-design laboratories, we possess extensive patent portfolios and advanced testing capabilities to provide highly reliable, customized magnetic solutions.
Smart & Scalable Manufacturing: We leverage advanced ERP and MES-managed smart manufacturing systems to optimize production capacity, securing a highly dependable supply chain for international clients across the EU, US, and globally.
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