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Low voltage capacitor banks
Medium voltage range capacitor banks
ST (kVA) power rating of the HV/LV transformer
Qc (kvar) power rating of the capacitor bank
The reactive power supplies by the capacitor bank is constante irrespective of any variations in the power factor and load of the receivers, thus of the reactive energy consumption of the insatalation.
These capacitors banks are switched on :
- Either manually by a circuit breaker or switch
- Semi-automatically by a remote-controlled contactor
This type of capacitor bank is generally used in the following situations :
- Electrical installations with constant load operating 24 hours a day
- Reactive compensation of transformers
- Individual compensation of motors
- Installation of a capacitor bank whose power is less than or equal to 15% of the power of the transformer.
The reactive power supplied by the capacitor bank can be adjusted according to variations in the power factor and the load of the receivers, thus of the reactive energy consumption of the installation.
These capacitor banks are made up of a combination of capacitor steps connected in parallel. Switching on and off of all or part of the capacitor bank is controlled by an integrated power factor controller
These capacitor banks are also used in the following situations :
- Variable load electrical installations
- Compensation of main LV distribution boards or major outgoing lines
- Installation of a capacitor bank whose power is more than 15% greater than power of the transformer.