Single phase high voltage capacitors
Lifasa’s cos ϕ correction power capacitors and harmonic filtering for AT are manufactured under the stainless steel container/box base and porcelain terminals.
Single-phase (1 or 2 terminals) with internal fuses for connection to the mains via a double star. Recommended for voltage networks above 11 kV or need of high power equipment.
Fabrication Voltages (Un) | 1 – 24 kV |
Powers: | 25 – 600 kvar unit in Monophasic |
Frequency: | 50/60 Hz |
Compliance standards: | CEI 60871-1:1997 EN 60871-1:1997 CEI 60871-4:1997 EN 60871-4:1997 |
Max overvoltage: | Un +10% (12 hours of 24 h daily) Un +15% (30 minutes) Un +20% (5 minutes) Un +30% (1 minute) |
Overcurrent (according to standard): | 1,3 * In |
Tolerance: | -5 / + 10% |
Test Voltage (between terminals): | 4,3 * One DC 10s, o 2,15 * One AC 10 s |
Test Voltage (between terminal and tank): | Conforms to the IEC standard for 10s |
Current limitation: | Max. 100 xln |
Dielectric Losses: | 0,07 W / kvar |
Total Losses Capacitors: | 0,15 W / kvar (with discharge resistors and internal fuses) |
Insulation Level: | 20/60 kV; 38/75 kV; 38/95 kV; 50/125 kV; 70/170 kV |
Expected standard of living: | > 100 000 hours |
IP degree of protection: | IP 00, interior and exterior |
Working temperature category: | -25º/C (50ºC) |
Ventilation: | Natural |
Humidity: | Maximum 95% |
Max. working height: | 1.000 m above sea level |
Mounting position: | Horizontal / Vertical |
Fastening: | Side Cards |
Internal safety device: | Internal fuses |
External safety device: | (optional) Pressure switch with potential-free contact NA+NC |
Cuba: | Stainless Steel |
Dielectric: | Polypropylene film |
Impregnant: | PCB-free, biodegradable |
Terminals: | Porcelain |
Discharge Resistors: | Included – 75 V residual voltage in 10 min. |
Recommended tightening M12: | 10 Nm |
Recommended tightening M10: | 7 Nm (Ground) |