| Brand | Rw Energy |
| Model NO. | High-Voltage Reactive Power Compensation Device – Outdoor Frame Type |
| Rated voltage | 6/10/35kV |
| Rated frequency | 50Hz |
| Series | RWTBB |
The RWTBB Series High-Voltage Reactive Power Compensation Device – Outdoor Frame Type is designed for 6kV, 10kV, 24kV, and 35kV three-phase power systems.
It provides effective reactive power compensation to:
Stabilize and balance network voltage
Improve overall power factor
Reduce energy losses in the distribution network
Enhance power supply reliability and quality
Engineered for outdoor applications, this frame-structured compensation device ensures durable operation and high efficiency in various industrial and utility environments.
1. Indoor and Outdoor Installation：Suitable for both indoor and outdoor use.
2. Multiple Compensation Modes：Supports frame structure, fixed compensation, and automatic switching compensation.
3. Direct Installation：Capacitor banks can be switched on/off directly through circuit breakers.
4. Indoor Cabinet Structure
Indoor units consist of:
• Circuit breaker
• Incoming cabinet
• Capacitor cabinet
• Reactor (air-core or iron-core)
Typical configuration: three-phase three-wire system.
5. Outdoor Frame Structure
Outdoor systems typically include:
• High-voltage incoming cabinet
• Discharge coil & protective components
• Capacitor racks (single or double layer)
• Reactor racks
• Filter circuits (optional)
Capacitor racks are arranged in single or double layers based on capacity.
6. 10 kV System
Equipped with 10kV Vacuum Circuit Breaker for automatic capacitive switching, supplemented by GW4-12D isolating switches for visible maintenance isolation.
Single capacitor capacity ≤ 500 kvar.
Large-capacity systems use double-layer capacitor racks.
7. 20 kV System
Capacitor units 200 kvar and below arranged in double layers.
Capacitors ≥ 200 kvar arranged in single layers.
8. 35 kV System
Outdoor frame structure with separated capacitors and reactors.
Capacitors are arranged in single or double layers depending on capacity.
Equipped with 10kV Vacuum Circuit Breaker for automatic capacitive switching, supplemented by GW4-35D isolating switches for visible maintenance isolation.
System voltage: 6–35 kV
Rated frequency: 50–60 Hz
Rated capacity:
150–10,000 kvar (10 kV and below)
600–20,000 kvar (35 kV)
Ambient temperature: −25°C to +45°C; 24-hour average ≤ +35°C
Altitude: ≤ 2000 m (consult manufacturer for high-altitude applications)
Humidity: daily average ≤ 95%; monthly average ≤ 90%
Wind speed (outdoor): ≤ 35 m/s
Seismic resistance: ≤ 8 degrees
Installation inclination: ≤ 3°
Solar radiation: ≤ 1000 W/m²
Environment: indoor/outdoor locations without flammable, explosive, corrosive, or conductive dust;
no severe vibration or steam condensation.
Air-core reactors are installed on the power supply side; iron-core reactors are placed on the neutral side.
For suppressing inrush current: reactance 0.5–1%.
For suppressing 5th and 7th harmonics: reactance 6%.
For suppressing 3rd harmonics and above: reactance 12%.
Main wiring configuration: single-star or double-star.
Single-star: used with open-delta overvoltage protection.
Double-star: used with neutral-point unbalance protection.
Single capacitor unit capacity: 50–500 kvar.
[Maintenance Pain-point]: Box units hide anomalies. [Physical Benefit]: Open architecture allows IR thermography from 5m away. [TCO Evidence]: 70% labor reduction, cuts lifecycle TCO by 25%.
[Safety Redline]: Lethal residual charge risk. [Physical Action]: Dedicated coils for rapid drain. [Standard Proof]: Compliant with IEC 60871, <50V within 5 seconds.
[Thermal Bottleneck]: Box-types trap heat. [Physical Advantage]: Open frame enables Natural Convection. [Proof]: 200% higher cooling efficiency, 15K lower temp, service life extended to 20+ years.
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