BOXER SERIES 80-120 KVA
PRODUCT DESCRIPTION
AG-SD-37/ Publication Date: 19.10.2012/Rev. No:1/Rev. Date:16.11.2012
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2.2.3 Bypass Mode
On account of UPS overload or any problem on inverter, no qualified AC output is produced,
loads are then fed trough bypass source.UPS switches from inverter to AC source via static
transfer switches without any interruption. The inverter source and mains must be
synchronized in order to manage this switching processes without any problem. If inverter
output and mains are not synchronized, this switching may take up to 15 msec. varying
according to load type.
2.2.4 Automatic Restart Mode
In case of any failure of the mains, the UPS will continue feeding the critical loads until the
batteries reaches the end of discharge voltage level. The UPS will go on working until the
batteries are drained, and then will shut down. After the mains conditions gets back to normal,
the UPS automatically starts to operate in a period to be determined. In this case, the UPS
continues to operate in normal mode as long as the mains values are in desired criteria. In the
Boxer SERIES UPS, this feature is not activated in factory settings.
2.2.5 Maintenance Mode
The UPS is equipped with a specific protection switch in order to keep the loads powered during
maintenance. This switch is designed so as to handle UPS loads completely.
2.3 Battery Management
Constant Charge Current
Constant current as 1/10 rate of the battery capacity is applied to battery, until the battery
reaches the float charge voltage.
Float Charge
Depending on the battery discharge current, 1/3 of the energy of the battery is charged at this
level. Owing to this level, batteries are kept ready for use at the highest capacity. For lead-acid
batteries, this voltage varies between the values of 2.2-2.35 V/cell. This voltage may differ
slightly due to temperature adaptation. Option of setting this coefficient is provided with our
UPS. If the temperature sensor is used, it is recommended to use.
Deep Discharge Protection
While the system is operating in the battery mode, if battery voltage has dropped below the
deep discharge voltage level, the UPS shuts down and stops absorbing energy from the batteries.
This value varies between 1.6-1.75 V/cell for Lead-Acid batteries, and between 0.9-1.1 V / cell
for Ni-Cd batteries.
Low Battery Warning Level
While the system operates in spare, in other words, battery mode, if the battery capacity drops
below its 40% value with actual loads, it will give audible and visible alarms. This value can be
adjusted by user between 20%-70%.
