B767 Electrical System

B-757/767 ELECTRICAL SYSTEM

B C

BAT

STBY POWER AUTO

ON

D I S C H

HOT BAT BUS DC

OFF

BAT

OFF

STANDBY DC

O F F

INV

STANDBY AC

BAT BATTERY BUS DC

4

4 CENTER AC

LEFT DC

CENTER DC

RIGHT DC

1

BTB

T

T R

R APU BAT

B 2

C

3

CAPT FLT INST XFR

F/O FLT INST XFR

GND SERV

GND HANDLING

APU GEN BUS TIE

O F F

EXT PWR ON ON

ON

PRESS AVAIL

ON AUTO

ON AUTO

ISLN

L BUS BUS OFF

Flow Lines ON Panel AC Power Flow Lines NOT on Panel DC Power AC Power

L GEN CONT O F F

BUS TIE

ISLN

UTILITY BUS L R ON

ON

OFF

OFF

GEN DRIVE DISC L R

ON

DRIVE

DRIVE

R BUS BUS OFF

R GEN CONT O F F

BUS INTERFACE DIAGRAM For Training Only

1

BUS TIE switches must be in AUTO for this relay to function.

2

Left BUS TIE switch must be in AUTO for this relay to function.

3

Right BUS TIE switch must be in AUTO for this relay to function.

4

When MCP APP mode selected with A/P engaged this relay changes power source.

ON