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A36F - 3 PHASE - INSTRUCTIONS AND TROUBLESHOOTING
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1.0 GENERAL
The La Marche Model A36F-3 PHASE is a controlled ferroresonant float charger designed to power a load
while charging a battery. The A36F-3 Phase is filtered and may be used without a battery.
The solid state electronic control circuit provides excellent line-load voltage regulation, current limiting,
timer, and alarm package with relays are standard.
The Model A36F-3 PHASE is available in a wide range of a.c. input voltages, with 24 volt and 48 volt d.c.
outputs in output currents ranging from 100 to 400 amps.
2.0 OUTPUT RATINGS
2.1
D.C. VOLTAGE
The A36F-3 PHASE series provide separate voltage adjustments for floating or equalizing lead or nickel
cadmium cells. The float or equalize mode of operation is selected by a switch located on the front of the
rectifier.
The factory settings are as follows:
§
Float voltage
Equalize voltage
2.25 volts/cell (Lead)
2.35 volts/cell (Lead)
1.40 volts/cell (N.C.)
1.55 volts/cell (N.C.)
2.2
VOLTAGE RANGE
§
Float
Equalize
2.12 - 2.3 volts/cell +/- .1 volts (Lead)
2.25 - 2.40 volts/cell +/- .1 volts (Lead)
1.39 - 1.45 volts/cell +/- .1 volts (N.C.)
1.50 - 1.60 volts/cell +/- .1 volts (N.C.)
2.3
OUTPUT CURRENT
§
Three Phase
-
100 to 400 amps
-
24Vdc, or 48Vdc
2.4
REGULATION
Steady state output voltage remains within +/- 1/2% of rated voltage for any load current from no load
to full load and for input voltages within the rated range.
2.5
FILTERING
Three phase units are 30Mv. RMS when connected to a battery with an ampere-hour capacity of four
times the output current capacity of the charger (32 DBRN “C” message weighting on units’ 48 volts or
less).
2.6
MEAN TIME BETWEEN FAILURE
The mean time between failure (MTBF) in excess of 175,000 hours at 50 degrees C.