What is reactive power?
Reactive power is the electrical energy used to establish and maintain a circuit's electric and magnetic fields, particularly in devices with electromagnetic coils. Reactive power is measured in VAR (volt-amperes reactive) or kVAR (kilovolt-ampere active).
The formula for reactive power is:
Q=V×I×sinϕ
Q: reactive power V: RMS voltage I: RMS current ϕ: the phase angle between the voltage and current
While it doesn’t perform external work, reactive power is essential for properly functioning electrical equipment. It ensures the grid meets the necessary electromagnetic conditions, facilitating the smooth flow of active power.
Reactive power is a crucial component for the operation of electrical systems.
Before and after compensation
Under normal operating conditions, electrical equipment requires both active power and reactive power from the power supply. If the grid lacks sufficient reactive power, the equipment cannot establish the necessary electromagnetic fields, leading to reduced terminal voltage and impaired functionality.
When generators and high-voltage lines don't provide enough reactive power, the grid often adds additional compensation devices. These devices ensure that equipment operates at rated voltage by compensating the reactive power demand.
Reactive power compensation can be achieved through devices like Static Var Generators (SVG). It helps to facilitate energy exchange between capacitive and inductive loads.
Benefits of reactive power compensation
In conclusion, reactive power compensation could bring several benefits:
As the leading and the biggest manufacturer of ODM and OEM power-quality products in China. YT Electric specializes particularly in low-voltage Active Harmonic Filters (AHF) and Static Var Generators (SVG). All products are certified with ISO9001, CE, and CQC standards, and are supported by type test reports.
We offer:
For more information on improving power quality, visit our website: www.ytelect.com, feel free to contact us: sales@ytelect.com
Keywords: power factor correction, electric power systems, reduce energy losses
capacitive reactive power, reactive compensation, fundamental power factor
leading power factor, load current lagging, capable of correcting load
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