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Low Voltage Compensation System
In ferroalloy production, the efficiency and stability of submerged arc furnaces are strongly influenced by the operating power factor. After commissioning, the natural power factor of a newly built furnace is typically only 0.60–0.65. Such a low power factor leads to higher reactive power consumption, increased transformer and network losses, and limited effective utilization of furnace transformer capacity.
CHNZBTECH provides advanced Low Voltage Compensation (L.V. Compensation) Systems specially designed for submerged arc furnaces. The system improves the operating power factor to 0.90–0.95, allowing more transformer capacity to be utilized as active power for smelting. This contributes to improved furnace productivity, reduced power consumption, and more stable furnace operation.
Key Features of Low Voltage Compensation System
• Power Factor Improvement: Increases furnace power factor from 0.60–0.65 to 0.90–0.95.
• Higher Effective Power Utilization: Enables the furnace transformer to deliver higher effective active power for smelting.
• Energy Efficiency: Reduces reactive power losses and lowers electricity consumption per ton of ferroalloy.
• Stable Furnace Operation: Improves arc stability, reduces voltage fluctuation, and minimizes electrode current imbalance.
• Reduced System Losses: Decreases transformer and grid losses, improving overall power utilization efficiency.
• Customized Design: Tailored solutions according to furnace capacity, transformer rating, and smelting process requirements.
Technical Parameters
Parameter | Specification | Notes |
|---|---|---|
Applicable Furnace Type | Submerged Arc Furnace (FeSi, SiMn, HCFeMn, SiC, etc.) | Customized design available |
Operating Voltage | According to LV bus voltage | Matching furnace electrical system |
Compensation Capacity | 5–40 Mvar | Configured according to furnace transformer rating |
Power Factor Before Compensation | 0.60–0.70 | Typical operating condition without compensation |
Power Factor After Compensation | 0.90–0.95 | Adjustable according to smelting conditions |
Response Time | ≤ 40 ms (dynamic thyristor-controlled type) | Rapid dynamic compensation |
Control Method | Automatic Capacitor Switching / Thyristor-Controlled | Optional |
Cooling Method | Natural Air Cooling / Forced Air Cooling | According to system size |
Installation Mode | Indoor Panel Type / Outdoor Container Type | Flexible arrangement |
Service Life | ≥ 15 Years | Under normal operating conditions |
Standards | IEC / IEEE / GB/T | International standards compliance |
