BOXER SERIES 80-120 KVA
PRODUCT DESCRIPTION
AG-SD-37/ Publication Date: 19.10.2012/Rev. No:1/Rev. Date:16.11.2012
11
2.1.1 Static Transfer Switch
Some blocks are named as static switches as can be seen above. These blocks consist of inverse
parallel connected thyristors. These switches, which are under the control of the main board
control unit, provides controlling of feeding the loads through either mains or inverters. The
loads are fed through inverter during the normal operating mode. Therefore, inverter static
switches are active if there is no problem with the system.
System provides the loads to be fed smooth and seamless by mains or inverter. In order to
manage this process at minimum risk, UPS synchronizes the inverter output and mains bypass
as the same phase and frequency. Therefore, inverter frequency is the same as mains frequency
as long as it is acceptable within frequency limit.
User can switch between mains and inverter, using the front panel. Loads, operating from the
mains with user instruction, will automatically undertake the load in the event that the mains
cuts off or is out of tolerance.
2.1.2 Battery Temperature Regulation
Optional temperature sensor is provided with external battery cabinets. Temperature of
batteries is measured by this sensor. UPS adjusts charge parameters according to the
information of the detected temperature..
2.2 UPS’s Operation Modes
Boxer series UPS devices have a structure of online and double loop. Our products operate in the
following modes:
Normal Mode
Battery Mode
Bypass Mode
Auto Restart Mode
Maintenance Mode
2.2.1 Normal(Online) Mode
In this mode, UPS supplies the load through the inverters. Rectifier unit is fed by the AC mains.
Inverter and battery charger units can be fed by the generated DC supply.
2.2.2 Battery (Stored) Mode
Due to any failure of the mains, while the UPS feeds the critical loads through inverter, this
energy can be supplied from the batteries.