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.
HYTSC High-Voltage Dynamic Reactive Power Compensation System
The HYTSC high-voltage dynamic reactive power compensation system uses thyristor-switched capacitor groups to follow rapidly changing reactive demand in 6 kV and 10 kV networks. It is intended for rolling mills, hoists, crushers and other fluctuating industrial loads where fast compensation helps improve power factor, limit voltage variation and reduce the burden on transformers and feeders.
Key Features
- Ultra-Fast Response Time ≤20ms
Ideal for dynamic and suddenly changing loads such as rolling mills, hoists, and crushers. - Zero-Cross Thyristor Switching
No inrush current, no operating shocks, significantly extends capacitor life. - Dynamic Dual-Control Capability
Simultaneously improves power factor and stabilizes voltage levels. - Digital Intelligent Control System
Real-time detection and compensation ensures accuracy and efficiency. - Harmonic Suppression & Grid Protection
Prevents compensation failure caused by harmonic amplification. - High Reliability & Maintenance Efficiency
Long service life, fault diagnosis, protection alarms, easy inspection.
Technical Highlights
| Item | Performance |
|---|---|
| Response Time | ≤20ms |
| Switching Method | Thyristor switched capacitor banks |
| Power Factor Improvement | ≥0.9 |
| Control Mode | Real-time dynamic compensation |
| System Compatibility | 6kV / 10kV high-voltage networks |
| Design Standard | Based on advanced international compensation technology |
Applications
- Metallurgy / steel rolling & arc furnace load
- Coal mines, hoisting & heavy impact loads
- Petrochemical & refinery systems
- Ports, cranes, large dynamic machinery
- Power distribution networks with significant load fluctuation
Benefits to Customers
✔ Improves efficiency of grid infrastructure
✔ Reduces transformer and line losses
✔ Enhances voltage stability and production reliability
✔ Significantly lowers electricity costs and penalty charges
✔ Provides higher stability for automation and intelligent manufacturing
✔ Reduces transformer and line losses
✔ Enhances voltage stability and production reliability
✔ Significantly lowers electricity costs and penalty charges
✔ Provides higher stability for automation and intelligent manufacturing
Model Definition
HYTSC-□-□/□-AKX/P6
| Code | Meaning |
|---|---|
| P | Reactor percentage |
| H | Harmonic filter branch |
| X | Indoor/outdoor cabinet type |
| K | Open-delta voltage protection |
| C | Phase-voltage differential protection |
| L | Neutral-point unbalance current protection |
| A/B | Single or double star connection |
| kvar | Single capacitor capacity |
| kvar (set) | Total installation capacity |
| kV | System voltage rating |
| —— | Manufacturer code |
Technical Specifications
| Item | Specification |
|---|---|
| Standard | DL/T 604-1996 |
| Rated voltage | 6kV / 10kV |
| System frequency | 50Hz |
| Dynamic response time | ≤20ms |
| Control power | AC380V ±5% |
| Phase structure | 3-phase |
| Recommended bank sizes | 300 / 600 / 750 / 900 / 1000 / 1200 / 1500 / 1800 / 3000kvar |
| Capacitor connection | Δ-type |
| Reactor tuning rate | 6% or 13% |
| Compensation level | Power factor ≥0.9 |
| Protection level | IP20 |
Benefits for End-Users
| Enhancement | Result |
|---|---|
| Voltage stability | Fewer trip failures |
| Reduced harmonic impact | Longer lifespan of motors & transformers |
| Lower network losses | Lower electricity bills |
| Reliable dynamic control | Stable operation of high-impact loads |
| Maintenance-free switching | Reduced OPEX |
Recommended Applications
Designed for scenarios with rapidly changing loads:
- Steel rolling mills
- Coal mining equipment
- Chemical processing plants
- Large compressors & crushers
- Ports, subway stations, water treatment facilities
- Industrial power distribution systems
Ordering Information Required
To ensure correct configuration, please provide:
- Rated system voltage
- Required total compensation capacity (kvar)
- Load type & fluctuation characteristics
- Whether harmonic filters (6% or 13%) are required
- Installation location (indoor/outdoor)
- Cabinet color & layout preference
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