Why Power Factor Matters: How Series-Resonance Power Supply Helps Foundries Control Electricity Cost
Created on 07.16
When selecting a medium-frequency induction melting furnace, many buyers first look at capacity and price. However, one of the most important factors behind long-term operating cost is the efficiency and power factor of the power supply system. The higher the electrical efficiency, the more input power is converted into useful melting energy, with less transmission loss and less reactive-power burden on the plant.
Arkora Furnace uses advanced series-resonance medium-frequency power supply technology. This design helps improve power factor and electrical utilization, allowing the system to maintain stable performance under demanding melting loads. According to internal product data, the system can achieve a power factor above 0.95. For a 5-ton aluminum melting furnace, reference power consumption can be around 510-530 kW·h/t, subject to final confirmation based on material, furnace model, voltage and site conditions.
This is particularly important for overseas foundries. Many factories in emerging markets face grid fluctuation, rising electricity prices and limited transformer capacity. If the power supply is inefficient, the buyer may pay more for electricity and may also need additional utility investment. An efficient medium-frequency power system helps customers make better use of existing plant infrastructure.
Digital monitoring is another important direction for modern induction furnaces. Real-time visibility of melting status, current, voltage, cooling-water temperature and key alarms helps operators detect abnormal conditions earlier and reduce manual judgment errors. For foundries running continuous production, this stability can be more valuable than a low initial purchase price.
When comparing induction furnaces, buyers should look beyond “capacity and price”. They should also evaluate the power-supply topology, power factor, rated power, cooling protection, control logic and maintenance accessibility. A truly efficient melting system balances energy saving, melting speed, reliability and safety.
Arkora Furnace can help evaluate your plant power conditions and recommend a suitable induction power-supply configuration.
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