VarPlus Box are low voltage metal box capacitors specially designed to deliver reliable performance in standard, heavy-duty and most severe operating conditions, in fixed and automatic Power Factor correction systems, in networks with frequently switched loads and harmonic disturbances.
- Technical datas:
- High life expectancy up to 160,000 hours
- Voltage up to 830 V
- High power ratings up to 100 kvar
- Operating temperature up to 70 °C
- High inrush current withstand up to 400 x IN
- Stand-alone equipment
- Direct connection to a machine, in harsh environmental conditions
- Compliant with standards IEC 60831-1 and -2.
VarPlus Box capacitors must be selected depending on the working conditions expected during their lifetime. Since the harmonics are caused by non-linear loads, an indicator for the magnitude of harmonics is the ratio NLL of the total power of non-linear loads to the power supply transformer rating.
Solution: description Recommended use for Max. condition SDuty: Standard capacitor Networks with non significant non-linear loads NLL = 10 % > Standard over-current 1.5 IN > Standard operating temperature 55 °C (class D) > Normal switching frequency 5,000 / year > Standard life expectancy up to 100,000 h HDuty: Heavy-duty capapcitor > Networks with a few non-linear loads NLL = 20 % > Significant over-current 1.8 IN > Standard operating temperature 55 °C (class D) > Significant switching frequency 7,000 / year > Long life expectancy up to 130,000 h Energy: Capacitor for special conditions > Networks with significant number of non-linear loads NLL = 25 % > Severe over-current 2.5 IN > Extreme operating temperature 70 °C > High switching frequency 10,000 / year > Extra long life expectancy up to 160,000 h
BenefitsA safe, reliable and high-performance solution for power factor correction in the most severe application conditions
- Technical datas: