VACON变频器采用了最新的薄膜电容技术,优势如下:
• Miniaturization by maximizing the capacitor volume filling with stacked or flat windings
• High rms - peak current handling capability
• High permissible ambient temperature --> no extra cooling needed
• Extremely low inductance --> low voltage transients during rapid current transients
• Extremely low equivalent series resistance (ESR) (ca. 10-times smaller ESR in film capacitors) --> low power losses
• Easy to integrate into a converter casing (i.e. not a can-type capacitor and busbars can be modified inside the capacitor element)
• No need for polarity checking
• High voltage ratings --> no need for series connection and balancing resistors
• High over voltage strength up to 2 times the rated voltage, Vr
• Low functional weight
• Low fire hazard due to liquid free technology
• Long expected service life --> no need for changing the capacitor during the
drive life time
• No acid inside and no storage problem --> Re-age/reforming is not needed.