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Lt Capacitor Duty Contactors
Lt Capacitor Duty Contactors
LT Capacitor Duty Contactors, tested by Frako for 1,00,000 switching operations – patented design with significant damping on inrush current.
- Long service life and a high number of switching operations; and safe switching of capacitor stages with or without reactors, bounce-free switching contacts, wear-free contact material.
- During the switching of power capacitors a peak inrush current of 200 times of the rated current can occur.
- In order to limit the inrush current and to protect switching devices and capacitors, capacitor switching contactors type K3-...K with leading transition contacts are used; to limit the inrush current to <70x IN, damping resistors are used.
- Capacitor switching contactors are protected against welding for a prospective peak inrush current of 200 x le.