無功功率轉換器
精確輕鬆地在不同機組之間轉換無功功率
無功功率轉換
換算結果
All Units
無功功率單位比較
關於無功功率
Reactive power is the component of electrical power that oscillates between the source and the load without being converted into useful work. It is measured in volt-amperes reactive (var) and is essential for maintaining the voltage levels required for proper operation of electrical equipment.
在交流電路中,無功功率是由感應或電容負載引起的,例如電機、變壓器和電容器。它是電力系統設計和運行中的一個重要考慮因素,以確保高效和可靠的性能。
常用單位
- Volt-Ampere Reactive (var)- 無功功率的基本單位
- Milli Volt-Ampere Reactive (mvar)- One thousandth of a var (1 mvar = 0.001 var)
- Kilo Volt-Ampere Reactive (kvar)- One thousand vars (1 kvar = 1000 var)
- Mega Volt-Ampere Reactive (Mvar)- One million vars (1 Mvar = 1000000 var)
- Giga Volt-Ampere Reactive (Gvar)- One billion vars (1 Gvar = 1000000000 var)
常見用途
無功功率轉換在電氣工程和電力系統的各個領域中都是必不可少的。以下是需要無功功率轉換的一些常見情況:
電力系統
在電力系統中,管理無功功率以將電壓電平保持在可接受的範圍內。變流器用於在不同機組之間轉換無功功率,以進行分析和規劃。
功率因數校正
無功功率會導致電氣系統效率低下。功率因數校正裝置,如電容器和電抗器,用於調整無功功率並提高功率因數。
電氣設備額定值
Electrical equipment, such as transformers and generators, is often rated in terms of both active power (watts) and reactive power (vars). Converting between different reactive power units helps in equipment selection and sizing.
轉換歷史
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