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Table 3-3. Wire List - Continued		Up
TM-11-6125-261-30 Static Power Inverter PP-7274D/A (EMP MODEL PS 227-3) (NSN 6125-00-148-8342) Manual		Next
Section III. TROUBLESHOOTING

TM 11-6125-261-30
Section II. TOOLS AND EQUIPMENT
table 3-4 is authorized if substitute equipment is of the
3-3. Test Equipment
same quality as the original equipment noted.
Common types of test equipment, considered as normal
direct and general support inventory items, amused on the
3-4. Test Fixture
maintenanec and test of the inverter. These items are listed
in table 3-4. This equipment is required but is not supplied
Table 3-5 contains the parts list for the test fixture shown in
with the inverter. Substitution of equipment as listed in
the test setup, figure FO-6.
Table 3-4. Test Equipment Required
Item
Nomenclature
National/NATO
Qty
Part Number
Stock Number
Oscilloscope
AN/ USM-281
6625-0228-2201
1
Digital Voltmeter
AN/GSM-64
6625-00-165-5779
3
Voltmeter
ME-30
6625-00-643-1670
1
--
.
AMMeter, 100 A.A.C.
1
Counter
AN/USM-207
6625-0044-3228
1
Distortion Analyzer
TS-723A
6625-00-668-9418
1
Multimeter
AN/ USM-223
6625-00-999-7465
1
--
--
Power Supply
1
Tool Kit, Electronic Equipment
TK-100
5180-00-605-0079
1
Tool Kit, Electronic Equipment
TK-101
5180-00-064-5178
1
--
--
Stopwatch,Seconds
1
Table 3-5. Test Fixture Parts List
Item
Description
Manufacturer
Qty
Variable Auto
0-125 V ac, 400 Hz, 1 KVA
Staco TYpe 501
3
Transformer
Calibrated Shunt
0.01 ohms 100W Calibrated
Commercial
3
(R1,2,3)
SP3T, 115 V ac, 10A
Switch (S1 ,2, 4, 6)
Commercial
4
4 gang SP3T, 115 V ac, 5a
1
Switch (S3)
Commercial
SP3T, 115 V ac, 10A
1
Switch (S5)
Commercial
Momentary, Normally OFF
Resistor 55.7 ±l% 500W
Load (+.75)
Capacitor 2.3 uf ±3%, 150 vac
Commercial
(R7, 8,9 Cl, 2, 3)
3
Resistor 70.6 ±l% 500W
Load(-.95)
Inductor 28.5 mh ±3%5A
Commercial
(R4, 5, 6 L1, 2, 3)
3
115 V ac
Commercial
Resistor 52.9 ±1% 500W
6
Load (+1.0)
(R10, 11, 12, 13, 14, 15)
MS3106F-22-6S
1
Connector (P1)
MS3106F-22-5P
Connector (P2)
1
Commercial
Fan, Portable
1
NOTE
Alternate Loads -- Any reasonable combinations of resistance, capacitance, and inductance maybe used to
satisfy the load requirements, provided that the ratio of resistance to reactance provides the specified power
factor and a variable auto transformers used to allow adjustment of the applied load current. In this method the
entire dummy load fixture must be calibrated by means of the external voltmeter/ammeter.
3-15

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