DGAC0.4 Series Intelligent Reactive Power Compensation Device (AC Contactor Switching Type)
Product Overview
The DGAC0.4 Series Intelligent Reactive Power Compensation Device is designed for low-voltage power distribution systems (AC 380 V, 50/60 Hz) to improve power factor, reduce line losses, and enhance voltage stability.
It adopts AC contactor-based switching control and integrates intelligent measurement, reactive compensation, and protection functions into one compact unit — achieving automatic, efficient, and safe compensation for various industrial and commercial applications.
Main Features
- ⚙️ Integrated Design: Combines power factor controller, low-voltage power capacitors, contactors, current transformers, and protection units in one cabinet.
- ⚡ Intelligent Control: Real-time monitoring of voltage, current, and power factor; automatic step switching to maintain the preset PF value.
- 🔄 AC Contactor Switching: Reliable mechanical switching with high durability and stable performance, suitable for frequent operations.
- 🛡️ Comprehensive Protection: Overvoltage, undervoltage, overcurrent, short-circuit, capacitor failure, and phase-loss protections ensure long-term stability.
- 🧩 Modular Construction: Easy maintenance and convenient capacity expansion according to system requirements.
- 🔧 Flexible Installation: Available in wall-mounted or floor-standing stainless-steel enclosures with front-door operation and clear instrument display.
Main Features
| Parameter | Specification |
|---|---|
| Rated Voltage | AC 380 V ±10 % |
| System Frequency | 50/60 Hz |
| Rated Capacity | 10 kvar – 100 kvar (customizable) |
| Control Method | AC contactor switching |
| Power Factor Target | 0.90 – 0.99 adjustable |
| Protection Functions | Over/undervoltage, overcurrent, phase loss, short circuit, temperature |
| Display & Control | Digital intelligent power factor controller with LED indicators |
| Operating Environment | -25 °C ~ +55 °C, ≤ 95 % RH (non-condensing) |
| Enclosure Protection Grade | IP30 / IP40 / IP54 optional |
| Mounting Type | Wall-mounted or floor-standing |
| Standards Compliance | IEC 60831-1/2, IEC 61439-1, GB/T 15576-2021 |
Technical Specifications
| Parameter | Specification |
|---|---|
| Rated Voltage | AC 380 V ±10 % |
| System Frequency | 50/60 Hz |
| Rated Capacity | 10 kvar – 100 kvar (customizable) |
| Control Method | AC contactor switching |
| Power Factor Target | 0.90 – 0.99 adjustable |
| Protection Functions | Over/undervoltage, overcurrent, phase loss, short circuit, temperature |
| Display & Control | Digital intelligent power factor controller with LED indicators |
| Operating Environment | -25 °C ~ +55 °C, ≤ 95 % RH (non-condensing) |
| Enclosure Protection Grade | IP30 / IP40 / IP54 optional |
| Mounting Type | Wall-mounted or floor-standing |
| Standards Compliance | IEC 60831-1/2, IEC 61439-1, GB/T 15576-2021 |
Applications
- Industrial plants and factories
- Commercial buildings and data centers
- Municipal and public power distribution systems
- Power substations and distribution rooms
Benefits
✅ Improved power factor and reduced utility penalties
✅ Lower energy losses and enhanced system efficiency
✅ Extended equipment lifespan through voltage stabilization
✅ Compact structure and easy installation for retrofit or new projects
