Description
LIFASA automatic capacitor banks are used for centralized compensation of power factor in low voltage installations.
These equipments are supplied completely assembled and ready for use: it is only necessary to connect it to the mains with cables of adequate cross section, and to supply the operation signal from a suitable current transformer.
General characteristics
LIFASA automatic capacitor banks are composed of the following elements:
• High rupturing capacity (HRC) fuses connected to a busbar system.
• Contactors specially adapted to the work with capacitors.
• Inrush current limiting inductances.
• Fast discharge resistors.
• Low losses power capacitors.
• Reactive power controllers.
• Terminals for neutral and ground conductors.
• Metal cabinet containing all the switchgear.
Advantages
• Equipments wired and tested at works, full finished and supplied with all control and safety devices.
• Easy transportation and installation due to their light weigh.
• Easy selection of the most appropriate cos φ to avoid penalty charges on tariffs.
• Long life and high reliability, thank to the use of self-healing and low losses capacitors.
• Wide range of power (from 5 to 1600 kvar, 440 V) with standard equipments for immediate delivery.
• Option of including various accessories.
Special equipment
On request, automatic capacitor banks can be produced to customers special requirements. Among the different possibilities are the following:
• Other voltages and frequencies.
• Capacitor banks with different degrees of protection.
• Capacitor banks for outdoor installation.
• Working program 1:2:4:4:, 1:2:4:8:,1:1:2:2:.
• Fixed step (for transformer compensation).
• Higher powers than the above stated.
| Technical characteristics | |
|---|---|
| 230 / 440 /690 V | Rated voltage |
| 50 Hz – 60 Hz | Rated frequency |
| 5 … 1600 kvar | Rated power |
| < 0.2 W/kvar | Dielectric losses |
| < 0.5 W/kvar | Capacitors losses |
| 1.1 Un (8h/day) | Maximum overvoltage |
| 1.3 In | Maximum overcurrent |
| On each contactor | Fast discharge resistors |
| MCE ADV or Master controller | Regulation equipment |
| 1:1:1:1 / 1:2:2:2 / 1:2:4:4 /1:2:4:8 / 1:1:2:2 /… | Working programs |
| 230 V | Control voltage |
| … /5 (Optional) | External current transformer |
| -25ºC/+45 ºC max. temp. | Temperature range |
| IP 21 | Degree of protection |
| Indoor | Installation |
| IEC 60831 | Standars |
| IEC 60439 | |
| EN 60439-1 | |
| EN 60831 | |