3A Wire-Wound Reactors
The 3A series wire-wound reactors are designed for low-voltage reactive power compensation systems and connected in series with capacitors to suppress harmonic currents and switching inrush currents. They help protect capacitors from harmonic stress and switching impact, improving system reliability and service life.
Product Description
The 3A series adopts multi-strand enameled flat conductors with constant-tension automatic winding technology to achieve uniform and compact winding. The multi-air-gap segmented silicon steel core structure reduces leakage flux, while vacuum impregnation and curing ensure integrated construction with low noise and low vibration.
Product Features
01
High-Consistency Wire-Wound Design
Multi-strand enameled flat conductors and automatic winding technology ensure uniform winding and stable electrical performance.
02
Low-Loss Silicon Steel Core
High-quality silicon steel core with optimized lamination structure reduces temperature rise and improves operational stability.
03
Low Noise and Vibration
Vacuum impregnation and curing enhance coil-core integration and reduce noise and vibration.
04
Reliable Structural Design
Anti-corrosion clamps and non-magnetic structural components improve durability and electromagnetic performance.
05
Flexible Configuration
Available in three-phase and single-phase dry-type iron core configurations.
Technical Specifications
| Parameter | Specification |
|
Standard |
IEC 60289, GB/T 1094.6 Power Transformers – Part 6: Reactors |
|
Inductance Error |
0 ~ +3% |
|
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 (depending on operating environment and capacitor aging 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 temperature monitoring devices can also be installed on each coil if required. |
