Zhejiang Hongyan Electric Co., Ltd. 
ENGINEERED SOLUTION
Steel & Metallurgy
Power factor correction, harmonic mitigation and voltage support for electric arc furnaces, rolling mills, cranes and high-load metallurgical production lines.
HYRPC-130E Series Reactive Power Compensation Controller
The HYRPC-130E series is an intelligent reactive power compensation and voltage quality control device, designed for 1 to 3 capacitor banks in low-voltage distribution systems such as single-transformer substations and single-source feeders.
HYRPC-130E Series Reactive Power Compensation Controller
Product Overview
The HYRPC-130E series is an intelligent reactive power compensation and voltage quality control device, designed for 1 to 3 capacitor banks in low-voltage distribution systems such as single-transformer substations and single-source feeders.
The controller automatically evaluates voltage deviation and reactive power demand, ensuring precise capacitor switching to maintain power factor within the ideal range, stabilize voltage, reduce system losses, and enhance distribution efficiency and power supply reliability.
This series integrates control, protection, monitoring, event recording, and communication into one compact and easy-to-operate unit.
Key Features
● Flexible control strategies
Supports equal-step, unequal-step (smart combination), filtering mode (sequential ON & reverse OFF), photovoltaic mode, terminal compensation mode, etc. Suitable for:
substations / feeders / distributed PV / harmonic mitigation / EV charging sites / industrial terminals
Supports equal-step, unequal-step (smart combination), filtering mode (sequential ON & reverse OFF), photovoltaic mode, terminal compensation mode, etc. Suitable for:
substations / feeders / distributed PV / harmonic mitigation / EV charging sites / industrial terminals
● Optimized switching logic
Automatically determines capacitor status based on real-time analog data & DI signals
→ fully automatic compensation with no manual intervention needed
Automatically determines capacitor status based on real-time analog data & DI signals
→ fully automatic compensation with no manual intervention needed
● Anti-oscillation control
- Uses power factor zone instead of fixed kvar setpoint
- Dual-delay mechanism: ON delay + reverse delay for OFF
- Prevents frequent switching and maintains grid stability
● Complete operation history
Stores: action count, run time, event logs, alarms, protection records for all 3 capacitor groups
Stores: action count, run time, event logs, alarms, protection records for all 3 capacitor groups
● Highly reliable interlocking system
- Locks switching during main transformer/capacitor fault
- Self-diagnosis with protection lockout on controller hardware failure
- Over-voltage/under-voltage lockout for capacitor safety
● User-friendly HMI
- 7-inch 800×480 color touch screen
- Chinese/English menu interface
- Clear and intuitive graphical status display
Functional Capabilities
| Function Category | Features |
|---|---|
| Main Functions | Voltage/reactive control, 3-phase power factor correction, harmonic indication, system data display, switching status analysis |
| Algorithm | Comprehensive voltage + reactive power deficit logic |
| Monitoring | Three-phase voltage, current, power factor, alarms, event logs |
| Capacitor Group Control | Automatic/manual control, 1–3 capacitor banks |
| Protection | Over-current, over-voltage, capacitor fault, abnormal switching, communication failure |
| Communication Protocol | RS-485, Modbus-RTU compatible |
| Auxiliary Functions | Temperature monitoring, cloud operation service (optional*) |
* Optional per order configuration
Technical Specifications
(Aligned with IEC 60076-6 & IEC 61558-2-20)
| Item | Specification |
|---|---|
| Power Supply | AC/DC 100–240V ±15% |
| Rated Voltage Sampling | AC 100V ±0.5% |
| Rated Current Sampling | 1A/5A ±0.5% |
| Operating Temperature | −20°C ~ +70°C (Option: −40°C ~ +85°C)* |
| Relative Humidity | ≤95%, non-condensing |
| Pollution Level | Class III |
| Insulation Class | F or H |
| Screen Size | 7-inch 800×480 TFT touch |
| Control Output | 3 relay outputs (NO/NC options) |
| Relay Contact Rating | AC 250V 5A / DC 220V 5A |
| Pulse Width (switching) | ≤2s |
| Panel Cut-out | 216×158 mm |
| Protection Level | Panel: IP54 / Controller body: IP00 |
| Input Signals | PT 0−120V / CT 0−1A/5A / 3 capacitor feedback signals |
| Accuracy Grade | PF/voltage/current sampling error <0.5% |
| Installation | Panel-mount |
| Communication Interface | RS-485 Modbus-RTU |
*For cold-region application customization available
Control Modes
| Mode | Application |
|---|---|
| Equal-step | General industrial terminals |
| Unequal-step | Power-saving optimized switching |
| Filtering mode | Harmonic resonance suppression |
| PV mode | Distributed solar grid-tie compensation |
| Feeder mode | Remote branch compensation |
Typical Applications
▪ Low-voltage capacitor banks
▪ Industrial automation plants
▪ Public buildings and commercial facilities
▪ Distribution substations & feeders
▪ Distributed renewable energy systems
▪ EV fast charging stations
▪ Harmonic-rich load environments
▪ Industrial automation plants
▪ Public buildings and commercial facilities
▪ Distribution substations & feeders
▪ Distributed renewable energy systems
▪ EV fast charging stations
▪ Harmonic-rich load environments
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