Specifications

2033D Specification
8
a. Converter input current (maximum) 115% of nominal.
b.
Converter input power (maximum) 100% of rated kVA.
c.
Converter input current (aux.) 10%-150% variable.
4.1.3 Battery Charge Current Limit
The Converter logic shall provide DC battery current limiting for controlled
battery charging. The battery current sensing shall be independent of the Converter
DC output current sensing to provide precise battery recharging. The following
battery current limits shall be provided as a minimum:
a. Primary battery charge current limit: 1% to 40% (adjustable) of battery Ah
rate.
b. Second step battery charge current limit: 1% to 40% (adjustable) of battery
Ah rate. Activated by a dry contact signal.
c. Maximum charge kW: 30% of rated kVA at low load.
4.1.4 Voltage Regulation
The Converter output voltage shall not deviate by more than r 1% RMS due to the
following conditions:
a. From 0 to 100% loading.
b. Converter input variations of voltage and frequency within the limitations
set in section 3.2.
c. Environmental condition variations within the limitations set in section 3.5.
4.1.5 Reflected Harmonic Content
The Converter shall not produce more than 4% reflected current distortion into the
Converter input utility source when nominal voltage and rated load is applied.
Typically, the amount of reflected current distortion shall not exceed 7% THD at
50 % load.
4.1.6 Automatic Input Walk-in
The Converter logic shall employ circuitry to allow a delayed and timed ramping
of input current. Subsequent to energizing the Converter input, the ramping of
current shall be delayed by a maximum of 10 second. Upon starting the walk-in
process, the ramping of current shall be timed to assume the load gradually within
5 through 30 seconds (every 1 second selectable). This function shall be supplied
as standard equipment.
4.1.7 Input Overload Protection
AC input contactor and fuses shall provide Converter input overload protection.