24-CONTENTS
GUN Page 9 May 28/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
CHAPTER 24 - ELECTRICAL POWER
TABLE OF CONTENTS_________________
Chapter
Section
Subject Subject_______ _______ Page____ Effectivity___________
AC EXTERNAL POWER 24-41-00
Description and Operation 1 ALL
General 1
Component Details 1
Bus Power Control Unit 1
External Power Contactor 1
External Power Panel 1
External Power Receptacle 1
Ground Power Current 1
Transformer
Operation 1
Functional Description 5
Component Location 101 ALL
Component Index
Component Location
Adjustment/Test 501 ALL
Operational Test - External 501
Power System
CONTACTOR - EXTERNAL POWER 24-41-01
Removal/Installation 401 ALL
RECEPTACLE - EXTERNAL POWER 24-41-02
Maintenance Practices 201 ALL
External Power Receptacle - 201
Inspection/Check
External Power Receptacle 204
Neutral Pin to Nose Gear
Grounding Stud Continuity
Check
Install the External Power 205
Recptacle
Remove the External Power 204
Receptacle
UNIT - BUS POWER CONTROL 24-41-03
Removal/Installation 401 ALL
AC ELECTRICAL LOAD DISTRIBUTION 24-50-00_______________________________
Description and Operation 1 ALL
General 1
General Description 1
24-CONTENTS
GUN Page 10 May 28/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL
CHAPTER 24 - ELECTRICAL POWER
TABLE OF CONTENTS
_________________
Subject
_______
Adjustment/Test Operational Test - Electrical Power Distribution Operational Test - Instrument Bus Voltage Sensing Unit System Test 115-VOLT AC POWER DISTRIBUTION
Description and Operation General Component Details
Center Bus Transfer Relay Ground Handling Relay Ground Service Select Relay Ground Service Transfer
Relay Instrument Bus Voltage Sensing Unit Utility Bus Relays
Operation AC Center Bus Functional Description
Component Location
Component Index
Component Location
RELAY - CENTER BUS ISOLATION Removal/Installation RELAY - CENTER BUS TRANSFER
Removal/Installation
RELAY - GROUND HANDLING
Removal/Installation
RELAY - GROUND SERVICE SELECT Removal/Installation RELAY - GROUND SERVICE TRANSFER
Removal/Installation
RELAY - ISOLATION REQUEST
Removal/Installation
RELAYS - UTILITY BUS Removal/Installation UNIT - INSTRUMENT BUS VOLTAGE SENSING (IBVSU) Removal/Installation
Chapter SectionSubject_______ Page____ Effectivity
501 ALL501
507
50324-51-00
1 ALL
1
1
1
1
1
1
5
1
5
9
5
101 ALL
24-51-06
401 ALL24-51-05
401 ALL24-51-01
401 ALL24-51-04
401 ALL24-51-03
401 ALL24-51-07
401 ALL24-51-02
401 ALL24-51-08
401 ALL
24-CONTENTS
GUN Page 11 May 28/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
CHAPTER 24 - ELECTRICAL POWER
TABLE OF CONTENTS
_________________
Chapter Section Subject_______ Subject ____ Effectivity
_______ Page ___________
28-VOLT AC POWER DISTRIBUTION 24-53-00
Description and Operation 1 ALL General 1 Component Details 1
Autotransformers 1
Operation 1
Functional Description 1
Component Location 101 ALL Component Index Component Location
28-VOLT DC POWER DISTRIBUTION 24-54-00
Description and Operation 1 ALL General 1 Component Details 1
Transformer-Rectifier Units 1
Ground Handling 1
Transformer-Rectifier Unit
(TRU)
Operation 1
Functional Description 1
Component Location 101 ALL Component Index Component Location
UNIT - GROUND POWER 24-54-01 TRANSFORMER-RECTIFIER Removal/Installation 401 ALL
24-CONTENTS
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