In electrical systems, many loads-such as motors and transformers-are inductive loads. Inductive loads decrease the power factor of the circuit. Power factor is a measure of the efficiency of electrical equipment. Capacitors can provide reactive power that offsets the reactive power consumed by inductive loads. The capacitive reactance of a capacitor depends on the frequency of the alternating current and the value of the capacitance. In power systems, when the system voltage fluctuates, capacitors can help regulate the voltage based on their operating characteristics.
Product Characteristics
Maintenance and Management of Capacitors in Electrical Companies
Installation and Commissioning
When installing capacitors, electrical companies must select the appropriate capacitor model and capacity based on factors such as the system voltage level and load characteristics. After installation, commissioning is required. This includes verifying that the capacitor wiring is correct and ensuring that the measured capacitance meets the design specifications.
For example, when installing shunt capacitors for reactive power compensation, the required capacity of the capacitor bank must be calculated based on the load's reactive power demand. During commissioning, it is also essential to ensure that the capacitor switching device functions properly, to avoid inappropriate capacitor switching that may affect system performance.
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