RGM-12S Single-Phase 12-Stage Reactive Power Control Relay
The RGM-12S is an advanced, micro-processor controlled single-phase reactive power controller designed to optimize power factor correction (PFC) across commercial and industrial electrical networks. Outfitted with an intelligent switching algorithm and a 12-stage step control capability, this automation module automatically connects or disconnects capacitor banks to match real-time inductive loads, minimizing grid penalties and improving overall energy efficiency. Its integrated, back-lit LCD screen serves as a highly readable field dashboard, tracking critical system variables such as active power factor, current, voltage, and localized harmonic distortion variables.
Key Features
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Intelligent 12-Stage Step Control: Dynamically manages up to 12 separate capacitor steps, ensuring a balanced distribution of switching runtime and fine-tuned reactive power compensation.
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Clear Backlit LCD Interface: Features a multi-variable display screen that shows numerical power metrics, active stepping indicators, and clear parameter configuration menus for straightforward commissioning.
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Tactile Menu Navigation: Integrated with four heavy-duty front-panel navigation buttons (Up, Down, Escape, and Set/Enter), allowing on-site engineers to calibrate switching delays and Target C/K thresholds without external software tools.
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Comprehensive Protection & Monitoring: Tracks critical power anomalies—including overvoltage, undervoltage, over-temperature, and harmonic thresholds—to shield vulnerable capacitor banks from premature thermal degradation.
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Compact Flush-Panel Profile: Designed with side-clamping retention modules for secure, clean flush installation inside main low-voltage distribution boards or localized control cubicles.
Technical Specifications
| Feature | Specification |
| Model Number | RGM-12S |
| Product Category | Protection and Control / Reactive Power Control Relay |
| Network Phase | Single-Phase Measurement Matrix |
| Number of Stages | 12 Switching Outputs (Relay driven) |
| Display Interface | Multiline back-lit digital LCD panel |
| User Interface | 4-button tactile programming keypad |
| Target Power Factor | Adjustable range from 0.80 inductive to 0.95 capacitive |
| Mounting Orientation | Front-panel flush mounting configuration |
Applications
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Automated Power Factor Correction (PFC): Serving as the central control unit for multi-step capacitor panel boards inside commercial buildings and factory facilities.
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Industrial Processing Plants: Stabilizing reactive power imbalances caused by highly inductive intermittent loads, such as large ventilation fans, conveyor drives, and compressor motors.
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Commercial Building Infrastructure: Managing energy profiles inside medical centers, high-rise complexes, and data centers to prevent power utility factor penalties.
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Substation Control Modules: Integrating within auxiliary automation panels to track low-voltage distribution performance.






