Xtreme Power Conversion Corporaon
T90 User’s Manual
Page 7
Uninterrupble Power Supply
Introducon
The informaon provided in this manual covers single phase T90 700–3000VA UPS, their basic funcons, operat-
ing procedures, and emergency situaons, also including informaon on how to ship, store, handle and install the
equipment. Only detailed requirements of the UPS units are described herein, and installaon must be carried out
in accordance with this manual. Electrical installaons must also carefully follow local legislaon and regulaons.
Only qualied personnel should conduct these installaons as failure to acknowledge electrical hazards could
prove to be fatal.
Product Descripon
Several dierent kinds of sensive electrical equipment stay protected by a UPS (Uninterrupble Power Supply)
including computers, workstaons, process control systems, telecommunicaons systems, sales terminals, other
crical instrumentaon, etc. The purpose of the UPS is to protect these systems from poor quality ulity power,
complete loss of power, or other associated problems.
Electrical interference abounds in many forms causing problems in AC power, from lightning, power company ac-
cidents and radio transmissions to motors, air condioners, and vending machines, among others. So protecon of
sensive electrical equipment is vital to protect against power outages, low or high voltage, slow voltage uctua-
ons, frequency variaons, dierenal and common-mode noises, transients, etc.
In order to prevent power line problems reaching crical systems causing damage to soware, hardware and
causing equipment to malfuncon, the UPS helps by maintaining constant voltage, isolang crical load output if
needed, and cleaning the ulity AC power.
Double Conversion Online Technology
A double conversion on-line technology UPS provides clean, uninterrupted single-phase power to your crical sys-
tems, while maintaining the baeries for their maximum potenal. In the event that the power failure lasts longer
than the UPS backup me, the UPS will shut down avoiding baery damage. When the input AC voltage returns,
the UPS will automacally return online to recharge the baeries.
As shown in block diagram:
• An input lter reduces transients on the mains
• For maintaining full baery charge, AC-power is reced and regulated in the recer feeding power to
the inverter and baery converter.
• DC power is converted to AC in the inverter passing it on to the load.
• Power is maintained from the baery during a power failure.
• The converter increases voltage appropriately for the inverter
