Chapter 1. INTRODUCTION

TM 11-6130-385-34

CHAPTER 1

INTRODUCTION

Section 1. GENERAL

1-1. scope

This

manual

contains

information

for

direct

b. Report of Packaging and Handling Deficien-

cies. Fill out and forward SF 364 (Report of

support

and

general

support

maintenance

Discrepancy (ROD) as prescribed in AR 735-11-2/

S t a t i c Power Inverter PP-72741A and PP-7274A/A

DLAR 4140.55/NAVMATINST 4355.73/AFR 400-

(static inverter). The unit is a 750-va, 3-phase

54/MCO 4430.3E.

i n v e r t e r which converts a nominal 28-vdc input to

c. D i s c r e p a n c y i n . S h i p m e n t R e p o r t ( D I S R E P )

regulated

115-vac,

400-Hz

power

for

use

(SF 361). Fill out and forward Discrepancy in

aircraft. The maintenance allocation chart (MAC)

S h i p m e n t Report (DISREP) (SF 361) as prescribed

for the static inverter is located in TM 11-1520-

in AR 55-38/NAVSUPINST 4610.33B/AFR 75-18/

221-20 and TM 11-1520-236-20.

MCO P4610.19C, and DLAR 4500.15.

NOTE

T h r o u g h o u t the manual, reference to the

1-4. Destruction of Army Materiel

PP-7274/A also refers to the PP-7274A/A

Refer to TM 750-244-2 for procedure to be used for

unless otherwise indicated.

this

equipment.

1 - 5 . Reporting Equipment Improvement

1-2. Indexes of Publications

Recommendations (EIR)

a. DA Pam 310-4. Refer to the latest issue of DA

Equipment

Improvement

Recommendations

Pam 310-4 to determine whether there are new

(EIR) can and must be submitted by anyone who is

editions, changes, or additional publications per-

aware of an unsatisfactory condition with the

taining to the equipment.

equipment design or use. It is not necessary to

b, DA Pam 310-7. Refer to DA Pam 310-7 to

show a new design or list a better way to perform a

determine whether there are modification work

procedure; just simply tell why the design is

orders (MWO's) pertaining to the equipment.

unfavorable or why a procedure is difficult.

Equipment Improvement Recommendations EIR

1-3. Forms and Records

may be submitted on SF 368 (Quality Deficiency

a. R e p o r t s o f M a i n t e n a n c e a n d U n s a t i s f a c t o r y

Report).

Mail

direct

Commander,

Army

Equipment. Maintenance forms, records, and re-

Communications and Electronics Materiel Readi-

ness Command, ATTN: DRSEL-ME-MQ, Fort

ports which are to be used by maintenance

personnel at all maintenance levels are listed in

M o n m o u t h , NJ 07703. A reply will be furnished to

a n d prescribed by TM 38-750.

you.

Section Il. DESCRIPTION AND DATA

1-6. Description

inverter is designed for use in aircraft.

Static inverter (fig. 1-1) converts a nominal +28 dc

1-7. Technical Data

input to a regulated 115-volt ac, 400 ±7 Hz, 3-phase

output. The unit provides output power of 750-va,

The electrical and physical characteristics of the

3-phase, 250-va per phase at 41 amperes. The

s t a t i c inverter are given in tables 1-1 and 1-2.

Change 1

1-1