vô kháng
Definition
- Adjective (Technical):
- Reactive (in electrical engineering): Describes electrical power that oscillates between the source and the load in an alternating current (AC) system, doing no real work but necessary for the operation of electromagnetic equipment like motors and transformers. It is associated with inductance and capacitance in a circuit.
Usage Examples
- Adjective:
- Công suất vô kháng cần được bù để nâng cao hiệu suất hệ thống. (Reactive power needs to be compensated to improve system efficiency.)
- Tụ điện này dùng để bù công suất vô kháng. (This capacitor is used to compensate for reactive power.)
Advanced Usage
- The term is almost exclusively used in the compound noun "công suất vô kháng", which translates directly to "reactive power" (measured in Volt-Amperes Reactive, or VAR). It is a core concept in electrical power engineering, contrasted with "công suất hữu công" (active/real power) and "công suất biểu kiến" (apparent power).
Variants and Related Words
- Công suất vô kháng (n): Reactive power.
- Kỹ sư tính toán lượng công suất vô kháng cần bù. (The engineer calculated the amount of reactive power that needs compensation.)
Synonyms
- Reactive: (In the specific context of electrical power) pertaining to the non-working power component in an AC circuit.
Related Technical Terms
- Công suất hữu công / Công suất thực (n): Active power / Real power (measured in Watts). The power that performs useful work.
- Công suất biểu kiến (n): Apparent power (measured in Volt-Amperes). The combination of active and reactive power.
- Hệ số công suất (n): Power factor. The ratio of active power to apparent power, indicating efficiency.