TM 11-6130-243-35
F U N C T I O N I N G OF EQUIPMENT
1-1. Scope
plied to the input circuit consisting of circuit breaker
a. This manual contains direct support, general sup-
switch CB1, the tap board, VOLTAGE ADJUST switch
port, and depot maintenance instructions for Power
S2, indicator lamp DS1, and power transformer T1. The
Supply PP-4606/G (power supply). It includes instruc-
tap board connects the input powerlines to the primary
tions appropriate for troubleshooting, testing, and
windings of power transformer T1. Jumpers are con-
repairing the equipment. It also lists tools, materials,
nected between various terminals on the tap board to
and test equipment required for maintenance, Func-
permit operation of the power supply from either 220-
tional analysis of the equipment is covered in this
or 440-volt alternating current (at) power mains. With
chapter.
circuit breaker switch CB1 set to POWER ON, input
b. The complete technical manual for this equip-
power is applied through the jumpers on the tap board
ment includes TM11-6130-243-12.
and VOLTAGE ADJUST switch S2 to the primary
c. You can help improve this manual. If you find
windings of stepdown power transformer T1 and in-
any mistakes or if you know of a way to improve the
dicator light DS1. The input circuit to transformer Tl is
procedures, please let us know. Mail your letter or DA
wye-connected, the output circuit from the transformer
Form 2028 (Recommended Changes to Publications and
is delta-connected. VOLTAGE ADJUST switch S2 con-
Blank Forms) direct to Commander, US Army
trols application of input power to specific taps of the
Communications-Electronics Command, ATTN:
primary windings of transformer T1. The ac output
DRSEL-ME-MQ, Fort Monmouth, NJ 07703. In either
voltages from the secondary windings of the
case, a reply will be furnished direct to you.
transformer is converted to a pulsating direct current
NOTE
(dc) voltage by full-wave rectifiers CR1 through CR6
For applicable forms and records, see
and filtered by the network consisting of capacitors C1
paragraph 1-3, TM11-6130-243-12.
through C8 and inductor L1. Resistors R1 and R2 com-
prise a load network across the rectifiers. The power
supply current and voltage are monitored by DIRECT
Refer to the latest issue of DA Pam 310-4 to determine
CURRENT AMPERES meter M1 and DIRECT CUR-
whether there are new editions, changes, modification
RENT VOLTS meter M2. Resistor R3 is the ammeter
work orders (MWO'S) or additional publications per-
shunt resistor. Resistor R4 is the meter movement series
taining to the equipment.
resistor used to establish the deflection sensitivity of the
ammeter. AMMETER switch S1 (spring-loaded to the
1-3. Block Diagram
OFF position) connects the ammeter to the output cir-
cuit when depressed to the READ position.
Three-phase, wye-connected primary input power is ap-
Change1
