MAKELSAN BOXER BX3310, Руководство пользователя

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BOXER SERIES 10-20 KVA PRODUCT DESCRIPTION
AG-SD-109 Publishing Date: 13.10.2015 Revision No: 0 Rev. Date:
2.1 General Information
General operation topology of Boxer Series UPS can be recognized as follows:
The UPS is connected to the mains voltage through the CB1 breaker. After this energy has filled
DC bus condensers, the rectifier operates. The rectifier converts the AC mains energy to DC
voltage and charges the batteries in a controlled manner. When there exists no mains, sufficient
level DC bus voltage is created, using battery voltage. DC bus voltage is converted to mains
synchronized AC voltage by the inverter. This is a high quality voltage. Generated AC power are
applied to the loads through the static semi-conductor transfer switches and output (load)
circuit breakers.
When maintenance or repair are needed, before input(CB1) and output (CB3)circuit breakers
are switched to open circuit (OFF), switch the UPS from normal mode to static bypass mode(see
4.1.3.2). Afterwards, the maintenance circuit breaker (CB2) is switched to closed circuit (ON).
After that, output (CB3) and input (CB1) circuit breakers of the UPS are taken to the off position
respectively.
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 mainboard
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