Single / Three-Phase Capacitor Series Reactor
The series reactor carries alternating current (AC) and is important ancillary equipment for reactive power compensation devices in power systems. It is connected in series with compensation capacitors to suppress harmonics, limit closing inrush currents and switching overvoltages, improve the system voltage waveform, protect capacitors, and raise the grid power factor. It therefore plays a significant role in the safe operation of power capacitors and other power equipment. Typically, reactors with reactance rates of 5–7% and 13% are high-inductance reactors.
Model: WLSRSG-0.35/0.45-7%
Capacitor Capacity: 5 kvar
Reactor Capacity: 0.35 kvar
Inductance: 9.024 mH
Dimensions: 225 × 110 × 225 mm
Mounting Dimensions: 110 × 74 mm
Mounting Hole: Φ11 × 20 mm
Key Features
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Premium Core Construction: The iron core is manufactured using high-quality imported silicon steel sheets. The core column is divided into uniform small segments with multiple air gaps, separated by epoxy fiberglass cloth to ensure the gaps remain unchanged during long-term operation.
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Low Noise & Anti-Corrosion: The core end faces are bonded with high-quality silicon steel sheet adhesive, joining the sheets firmly together. This design significantly reduces operational noise and offers excellent anti-corrosion and dust-proof performance.
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High-Strength Epoxy Cast Coil: The coil features an F-class epoxy resin casting system poured under vacuum conditions, reinforced with epoxy fiberglass mesh cloth inside and out. It provides outstanding insulation, high mechanical strength, and excellent resistance to large current impacts and thermal shocks without cracking.
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Superior Safety & Stability: The epoxy cast coil absorbs zero moisture and maintains a low partial discharge, allowing for safe operation even in harsh environmental conditions.
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Vibration Reduction Design: The upper and lower ends of the coil are equipped with epoxy blocks and silicone shock-absorbing pads to effectively minimize vibration during operation.
Operating Environment
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Altitude: ≤ 1,000 meters.
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Ambient Temperature: -25°C to +45°C.
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Relative Humidity: ≤ 90%.
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Surrounding Conditions: Requires good ventilation. The installation site must be free from harmful gases and flammable or explosive materials.
Technical Parameters
Low Voltage Series Reactor WLSRSG-7% Series
| Reactor Model | Matching Capacitor Capacity (kvar) | Reactor Capacity (kvar) | Inductance (mH) | Dimensions L×W×H (mm) MAX | Mounting Dimensions L1×W1 (mm) | Mounting Hole ΦK×L |
| WLSRSG-0.35/0.45-7% | 5 | 0.35 | 9.024 | 225 × 110 × 225 | 110 × 74 | Φ11 × 20 |
| WLSRSG-0.56/0.45-7% | 8 | 0.56 | 5.64 | 225 × 120 × 225 | 110 × 84 | Φ11 × 20 |
| WLSRSG-0.7/0.45-7% | 10 | 0.7 | 4.512 | 245 × 140 × 250 | 110 × 99 | Φ11 × 20 |
| WLSRSG-0.84/0.45-7% | 12 | 0.84 | 3.76 | 245 × 140 × 250 | 110 × 99 | Φ11 × 20 |
| WLSRSG-1.05/0.45-7% | 15 | 1.05 | 3.008 | 245 × 140 × 250 | 110 × 99 | Φ11 × 20 |
| WLSRSG-1.12/0.45-7% | 16 | 1.12 | 2.82 | 245 × 140 × 250 | 110 × 99 | Φ11 × 20 |
| WLSRSG-1.19/0.45-7% | 17 | 1.19 | 2.654 | 245 × 140 × 250 | 110 × 99 | Φ11 × 20 |
| WLSRSG-1.26/0.45-7% | 18 | 1.26 | 2.507 | 245 × 140 × 250 | 110 × 99 | Φ11 × 20 |
| WLSRSG-1.4/0.45-7% | 20 | 1.4 | 2.256 | 245 × 140 × 250 | 110 × 99 | Φ11 × 20 |
| WLSRSG-1.75/0.45-7% | 25 | 1.75 | 1.805 | 255 × 165 × 265 | 120 × 118 | Φ9 × 20 |
| WLSRSG-1.96/0.45-7% | 28 | 1.96 | 1.611 | 255 × 165 × 265 | 120 × 118 | Φ9 × 20 |
| WLSRSG-2.1/0.45-7% | 30 | 2.1 | 1.504 | 255 × 165 × 265 | 120 × 118 | Φ9 × 20 |
| WLSRSG-2.38/0.45-7% | 34 | 2.38 | 1.327 | 255 × 165 × 265 | 120 × 118 | Φ9 × 20 |
| WLSRSG-2.45/0.45-7% | 35 | 2.45 | 1.289 | 255 × 165 × 265 | 120 × 118 | Φ9 × 20 |
| WLSRSG-2.8/0.45-7% | 40 | 2.8 | 1.128 | 255 × 165 × 265 | 120 × 118 | Φ9 × 20 |
| WLSRSG-3.15/0.45-7% | 45 | 3.15 | 1.003 | 265 × 160 × 270 | 133 × 115 | Φ11 × 25 |
| WLSRSG-3.5/0.45-7% | 50 | 3.5 | 0.902 | 265 × 160 × 270 | 133 × 115 | Φ11 × 25 |
| WLSRSG-4.2/0.45-7% | 60 | 4.2 | 0.752 | 290 × 175 × 275 | 133 × 127 | Φ11 × 25 |
| WLSRSG-4.9/0.45-7% | 70 | 4.9 | 0.65 | 280 × 145 × 280 | 150 × 110 | Φ11 × 25 |
| WLSRSG-5.25/0.45-7% | 75 | 5.25 | 0.61 | 300 × 170 × 295 | 190 × 125 | Φ11 × 25 |
| WLSRSG-5.6/0.45-7% | 80 | 5.6 | 0.56 | 300 × 170 × 295 | 190 × 125 | Φ11 × 25 |
| WLSRSG-6.3/0.45-7% | 90 | 6.3 | 0.5 | 300 × 170 × 300 | 190 × 125 | Φ11 × 25 |
| WLSRSG-7.0/0.45-7% | 100 | 7.0 | 0.45 | 325 × 235 × 300 | 190 × 135 | Φ11 × 25 |
Why Choose WeiLian
Focused Expertise in Reactive Power Compensation
Weilian focuses on series reactors and reactive power compensation equipment, with deep understanding of power system applications.
Quality Control from Material to Finished Product
Strict control over core materials, winding casting, and final testing ensures stable performance and long service life.
Application-Driven Customization
Solutions are tailored to harmonic conditions, grid requirements, and project needs—not just standard models.
Responsive Service & Long-Term Support
Professional selection support, timely communication, and after-sales service help reduce project risk and O&M costs.
