An electric circuit element used to store charge temporarily, consisting in general of two metallic plates separated and insulated from each other by a dielectric and encased in plastic insulation. A UPS power system will not operate without its AC capacitors. Alternating Current Capacitors, are inside every UPS power system and they will not operate without their AC capacitors. Whether AC or DC capacitors these are an integral part of the electronics on every UPS energy systems. T2000 UPS is a robust and well known UPS power system that is reliable and uninterruptible power supply used on Railways and in hospitals and Banks for business continuity and power continuity for adept power systems.