Unipower ARR Series, Руководство по эксплуатации продукта

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ARR Series Three Phase, Six Pulse SCR Charger Introduction
RS-420, Rev. 7 1-1
1. INTRODUCTION
1.1 PURPOSE AND USE
The purpose of the UNIPOWER AutoReg
®
battery charger is the conversion of AC power to DC power for the
proper maintenance of a battery in the fully charged condition.
The battery is maintained in the fully charged state, because the AutoReg
®
will continually deliver a DC output
equal to the given load, provided that load does not exceed the DC output rating indicated on the nameplate.
The battery then is said to be in float service. Since, unless there is an AC power failure, the battery will not be
required to provide the power needed for the load, it remains fully charged.
In the AutoReg
®
charger, when the AC line supply is within the limits of 10% above or below the AC voltage
rating on the nameplate, and 5% above or below the AC frequency rating on the nameplate, the charger will
maintain a steady DC output voltage within
±
½
%, for any load from 0% to 100%. The efficiency of the charger
is shown by the following graph.
On the AutoReg
®
charger, the float and equalize voltages can be adjusted within the range of 10% above or below
the nominal voltages, which are factory set.
The AutoReg
®
charger has incorporated into its control circuitry a current-limit system. This is factory set at
115% of the rated output. The following graph shows the effectiveness of the current-limit.