3E Foil-Wound Reactors
The 3E series reactors are designed for low-voltage reactive power compensation systems and connected in series with capacitors to form tuned filter branches. They suppress harmonic currents and switching inrush currents caused by non-linear loads, protecting capacitors and improving overall system reliability.
Product Description
The 3E series adopts dry-type iron core technology with foil-wound coils to ensure stable electrical performance and reliable operation. With low-loss silicon steel cores, anti-corrosion structural components, and vacuum impregnation processes, it provides improved thermal stability and mechanical strength for capacitor cabinet applications.
Product Features
01
Flexible Design Options
Available in three-phase and single-phase dry-type iron core configurations.
02
Low-Loss and Low-Noise Operation
Silicon steel core design reduces temperature rise and acoustic noise.
03
Stable Foil-Wound Structure
Foil-wound coils provide high consistency and stable electrical performance.
04
Enhanced Mechanical Reliability
Vacuum impregnation improves mechanical strength and thermal stability.
05
Corrosion-Resistant Structure
Non-magnetic and anti-corrosion components support long-term operation.
06
Compact Cabinet Integration
Optimized design simplifies installation and reduces system integration costs.
Technical Specifications
| Parameter | Specification |
|
Standard |
IEC 60289, GB/T 1094.6 Power Transformers – Part 6: Reactors |
|
Inductance Error |
0 ~ +3% of rated inductance value (Ln) |
|
Fundamental Current (I1) |
1.10 × Icn (under overvoltage conditions) |
|
Harmonic Voltage Distortion Current (Ith) |
Based on rated voltage Un: Uh3 = 0.5%, Uh5 = Uh7 = 5.0% |
|
Core Linear Current (ILin) |
1.05 × Irms (for aging compensation and severe operating conditions); 1.20 × Σ(I1–I7), max. 1.8 × In |
|
Ambient Temperature |
40℃ |
|
Insulation Class |
Class H |
|
Protection Function |
A temperature monitoring device is installed in the center coil of the LV reactor. Optional sensors can be installed on each coil if required. |
