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Low voltage capacitor banks
Medium voltage range capacitor banks
Comparison criteria | Banks with electromechanical contactors | |
Sensitive data | ALPISTATIC | Conventional system |
Presence of electromechanical contactors | No | Yes |
Wear of moving parts | No | Yes |
Contact bounce phenomenon | No | Possible |
Contact fatigue | None | Hight |
Transient overcurrents on activation and desactivation of steps | No |
Yes (may exceed 200 ln) |
Trasient overvoltages | None |
Yes (up to 100%) |
Compatibility (PLCs, computer equipment, etc.) | Excellent | Average |
Compatibility (welding machines, generator sets, etc.) | Excellent | Poor |
Activation and desactivation response time | 40 milliseconds max. | Approx. 30 seconds |
Number of operations | Unlimited | limited (electromechanical contactor) |
Sound level during operation | None | low (electromechanical contactor) |
Reduction of FLICKER | Yes (for highly inductive loads) | No |
Creation of harmonics | No | No |