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PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 1 of 90
737-300/400737-300/400ELECTRICALELECTRICAL
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PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 2 of 90
V V
V
VVV F
V F
A A A
DC STANDBY BUSDC STANDBY BUS
EXTERNAL AC BUSEXTERNAL AC BUS
GENERATOR BUS 2GENERATOR BUS 2
MAIN BUS 2MAIN BUS 2TRANSFER BUS 1TRANSFER BUS 1 TRANSFER BUS 2TRANSFER BUS 2MAIN BUS 1MAIN BUS 1GROUND SERVICE BUSGROUND SERVICE BUS
ENGINE DRIVENGENERATOR 1
VF
A
EXTERNAL ACRECEPTACLE
GENERATOR BUS 1GENERATOR BUS 1
VF
GROUNDSERVICESWITCH
VF
A
APU GEN
BUS PROTECTION PANELBUS PROTECTION PANEL
F V
AENGINE DRIVENGENERATOR 2
TRANSFER BUSRELAY 1
22 22
TRANSFER BUSRELAY 2
DC BUS 2DC BUS 2DC BUS 1DC BUS 1
TTRR11
TTRR22
TR3 DISCONNECTRELAY
TTRR33
11
11 11
BATTERYBUSBATTERYBUS
HOT BATTERYBUSHOT BATTERYBUS
11
22
22
SWITCHED HOT BATTERY BUSSWITCHED HOT BATTERY BUS
STATICSTATICINVERTERINVERTER
AC STANDBY BUSAC STANDBY BUS
11
22
BATTERYBATTERY EXTERNAL DCRECEPTACLE
VBATTERYBATTERYCHARGERCHARGER
22
11
APU STARTBATTERY CHARGER
CUTOUT RELAY
A 22
11NORMALPOWERSOURCE
AC POWERAC POWER
DC POWERDC POWER
ALTERNATEPOWERSOURCE
LEGEND
737-300/400 Electrical Schematic
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 3 of 90
737-300/400 Electrical Schematic
GENERATOR BUS 1GENERATOR BUS 1 GENERATOR BUS 2GENERATOR BUS 2
The generator busses can receive power from three different sources. One possibility is to utilize ground power.
EXTERNAL ACRECEPTACLE
BUS PROTECTION PANELBUS PROTECTION PANELVF
22
11NORMALPOWERSOURCE
AC POWERAC POWER
DC POWERDC POWER
ALTERNATEPOWERSOURCE
LEGEND
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 4 of 90
737-300/400 Electrical Schematic
A second possibility is to utilize the respective engine driven generators.
GENERATOR BUS 1GENERATOR BUS 1 GENERATOR BUS 2GENERATOR BUS 2
EXTERNAL ACRECEPTACLE
BUS PROTECTION PANELBUS PROTECTION PANELVF
ENGINE DRIVENGENERATOR 1
VF
A
F V
AENGINE DRIVENGENERATOR 2
22
11NORMALPOWERSOURCE
AC POWERAC POWER
DC POWERDC POWER
ALTERNATEPOWERSOURCE
LEGEND
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 5 of 90
737-300/400 Electrical Schematic
The third and final possibility is to utilize the APU generator.
GENERATOR BUS 1GENERATOR BUS 1 GENERATOR BUS 2GENERATOR BUS 2
EXTERNAL ACRECEPTACLE
BUS PROTECTION PANELBUS PROTECTION PANELVF
ENGINE DRIVENGENERATOR 1
VF
A
F V
AENGINE DRIVENGENERATOR 2
VF
A
APU GEN
22
11NORMALPOWERSOURCE
AC POWERAC POWER
DC POWERDC POWER
ALTERNATEPOWERSOURCE
LEGEND
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 6 of 90
737-300/400 Electrical Schematic
Ground power also powers the external AC bus.
GENERATOR BUS 1GENERATOR BUS 1 GENERATOR BUS 2GENERATOR BUS 2
EXTERNAL ACRECEPTACLE
BUS PROTECTION PANELBUS PROTECTION PANELVF
ENGINE DRIVENGENERATOR 1
VF
A
F V
AENGINE DRIVENGENERATOR 2
VF
A
APU GEN
EXTERNAL AC BUSEXTERNAL AC BUS
22
11NORMALPOWERSOURCE
AC POWERAC POWER
DC POWERDC POWER
ALTERNATEPOWERSOURCE
LEGEND
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 7 of 90
GROUND SERVICE BUSGROUND SERVICE BUS
737-300/400 Electrical Schematic
The ground service bus can receive power from two different sources. The first possibility is generator bus 1.
GENERATOR BUS 1GENERATOR BUS 1 GENERATOR BUS 2GENERATOR BUS 2
EXTERNAL ACRECEPTACLE
BUS PROTECTION PANELBUS PROTECTION PANELVF
ENGINE DRIVENGENERATOR 1
VF
A
F V
AENGINE DRIVENGENERATOR 2
VF
A
APU GEN
EXTERNAL AC BUSEXTERNAL AC BUS
22
11NORMALPOWERSOURCE
AC POWERAC POWER
DC POWERDC POWER
ALTERNATEPOWERSOURCE
LEGEND
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 8 of 90
737-300/400 Electrical Schematic
The second possibility is the ground power(via the ground service switch).
GROUNDSERVICESWITCH
GROUND SERVICE BUSGROUND SERVICE BUS
GENERATOR BUS 1GENERATOR BUS 1 GENERATOR BUS 2GENERATOR BUS 2
EXTERNAL ACRECEPTACLE
BUS PROTECTION PANELBUS PROTECTION PANELVF
ENGINE DRIVENGENERATOR 1
VF
A
F V
AENGINE DRIVENGENERATOR 2
VF
A
APU GEN
EXTERNAL AC BUSEXTERNAL AC BUS
22
11NORMALPOWERSOURCE
AC POWERAC POWER
DC POWERDC POWER
ALTERNATEPOWERSOURCE
LEGENDSee picture of See picture of
ground service switchground service switch
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 9 of 90
MAIN BUS 1MAIN BUS 1
737-300/400 Electrical Schematic
The only power source to main bus 1 is generator bus 1.
GROUND SERVICE BUSGROUND SERVICE BUS
GROUNDSERVICESWITCH
GENERATOR BUS 1GENERATOR BUS 1 GENERATOR BUS 2GENERATOR BUS 2
EXTERNAL ACRECEPTACLE
BUS PROTECTION PANELBUS PROTECTION PANELVF
ENGINE DRIVENGENERATOR 1
VF
A
F V
AENGINE DRIVENGENERATOR 2
VF
A
APU GEN
EXTERNAL AC BUSEXTERNAL AC BUS
22
11NORMALPOWERSOURCE
AC POWERAC POWER
DC POWERDC POWER
ALTERNATEPOWERSOURCE
LEGEND
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 10 of 90
TRANSFER BUS 1TRANSFER BUS 1
TRANSFER BUSRELAY 1
11
737-300/400 Electrical Schematic
The normal power source to transfer bus 1 is generator bus 1.
GROUND SERVICE BUSGROUND SERVICE BUS
GROUNDSERVICESWITCH
MAIN BUS 1MAIN BUS 1
GENERATOR BUS 1GENERATOR BUS 1 GENERATOR BUS 2GENERATOR BUS 2
EXTERNAL ACRECEPTACLE
BUS PROTECTION PANELBUS PROTECTION PANELVF
ENGINE DRIVENGENERATOR 1
VF
A
F V
AENGINE DRIVENGENERATOR 2
VF
A
APU GEN
EXTERNAL AC BUSEXTERNAL AC BUS
22
11NORMALPOWERSOURCE
AC POWERAC POWER
DC POWERDC POWER
ALTERNATEPOWERSOURCE
LEGEND
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 11 of 90
22
737-300/400 Electrical Schematic
The alternate power source to transfer bus 1 is generator bus 2.
GROUND SERVICE BUSGROUND SERVICE BUS
GROUNDSERVICESWITCH
TRANSFER BUS 1TRANSFER BUS 1
TRANSFER BUSRELAY 1
11
MAIN BUS 1MAIN BUS 1
GENERATOR BUS 1GENERATOR BUS 1 GENERATOR BUS 2GENERATOR BUS 2
EXTERNAL ACRECEPTACLE
BUS PROTECTION PANELBUS PROTECTION PANELVF
ENGINE DRIVENGENERATOR 1
VF
A
F V
AENGINE DRIVENGENERATOR 2
VF
A
APU GEN
EXTERNAL AC BUSEXTERNAL AC BUS
22
11NORMALPOWERSOURCE
AC POWERAC POWER
DC POWERDC POWER
ALTERNATEPOWERSOURCE
LEGEND
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 12 of 90
TRANSFER BUS 2TRANSFER BUS 2
TRANSFER BUSRELAY 2
11
737-300/400 Electrical Schematic
The normal power source to transfer bus 2 is generator bus 2.
22
11NORMALPOWERSOURCE
AC POWERAC POWER
DC POWERDC POWER
ALTERNATEPOWERSOURCE
LEGEND
22
GROUND SERVICE BUSGROUND SERVICE BUS
GROUNDSERVICESWITCH
TRANSFER BUS 1TRANSFER BUS 1
TRANSFER BUSRELAY 1
11
MAIN BUS 1MAIN BUS 1
GENERATOR BUS 1GENERATOR BUS 1 GENERATOR BUS 2GENERATOR BUS 2
EXTERNAL ACRECEPTACLE
BUS PROTECTION PANELBUS PROTECTION PANELVF
ENGINE DRIVENGENERATOR 1
VF
A
F V
AENGINE DRIVENGENERATOR 2
VF
A
APU GEN
EXTERNAL AC BUSEXTERNAL AC BUS
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 13 of 90
22
737-300/400 Electrical Schematic
The alternate power source to transfer bus 2 is generator bus 1.
GROUND SERVICE BUSGROUND SERVICE BUS
GROUNDSERVICESWITCH
22
TRANSFER BUS 2TRANSFER BUS 2
TRANSFER BUSRELAY 2
11
TRANSFER BUS 1TRANSFER BUS 1
TRANSFER BUSRELAY 1
11
MAIN BUS 1MAIN BUS 1
GENERATOR BUS 1GENERATOR BUS 1 GENERATOR BUS 2GENERATOR BUS 2
EXTERNAL ACRECEPTACLE
BUS PROTECTION PANELBUS PROTECTION PANELVF
ENGINE DRIVENGENERATOR 1
VF
A
F V
AENGINE DRIVENGENERATOR 2
VF
A
APU GEN
EXTERNAL AC BUSEXTERNAL AC BUS
22
11NORMALPOWERSOURCE
AC POWERAC POWER
DC POWERDC POWER
ALTERNATEPOWERSOURCE
LEGEND
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 14 of 90
MAIN BUS 2MAIN BUS 2
737-300/400 Electrical Schematic
The only power source to main bus 2 is generator bus 2.
GROUND SERVICE BUSGROUND SERVICE BUS
GROUNDSERVICESWITCH
2222
TRANSFER BUS 2TRANSFER BUS 2
TRANSFER BUSRELAY 2
11
TRANSFER BUS 1TRANSFER BUS 1
TRANSFER BUSRELAY 1
11
MAIN BUS 1MAIN BUS 1
GENERATOR BUS 1GENERATOR BUS 1 GENERATOR BUS 2GENERATOR BUS 2
EXTERNAL ACRECEPTACLE
BUS PROTECTION PANELBUS PROTECTION PANELVF
ENGINE DRIVENGENERATOR 1
VF
A
F V
AENGINE DRIVENGENERATOR 2
VF
A
APU GEN
EXTERNAL AC BUSEXTERNAL AC BUS
22
11NORMALPOWERSOURCE
AC POWERAC POWER
DC POWERDC POWER
ALTERNATEPOWERSOURCE
LEGEND
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 15 of 90
737-300/400 Electrical Schematic
The normal power source to the AC standby bus is transfer bus 1.
GROUND SERVICE BUSGROUND SERVICE BUS
GROUNDSERVICESWITCH
MAIN BUS 2MAIN BUS 2
2222
TRANSFER BUS 2TRANSFER BUS 2
TRANSFER BUSRELAY 2
11
TRANSFER BUS 1TRANSFER BUS 1
TRANSFER BUSRELAY 1
11
MAIN BUS 1MAIN BUS 1
GENERATOR BUS 1GENERATOR BUS 1 GENERATOR BUS 2GENERATOR BUS 2
EXTERNAL ACRECEPTACLE
BUS PROTECTION PANELBUS PROTECTION PANELVF
ENGINE DRIVENGENERATOR 1
VF
A
F V
AENGINE DRIVENGENERATOR 2
VF
A
APU GEN
EXTERNAL AC BUSEXTERNAL AC BUS
22
11NORMALPOWERSOURCE
AC POWERAC POWER
DC POWERDC POWER
ALTERNATEPOWERSOURCE
LEGEND
V F
AC STANDBY BUSAC STANDBY BUS
11
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 16 of 90
ATT
RR11
737-300/400 Electrical Schematic
Transfer bus 1 powers TR1. 22
11NORMALPOWERSOURCE
AC POWERAC POWER
DC POWERDC POWER
ALTERNATEPOWERSOURCE
LEGEND
GROUND SERVICE BUSGROUND SERVICE BUS
GROUNDSERVICESWITCH
MAIN BUS 2MAIN BUS 2
2222
TRANSFER BUS 2TRANSFER BUS 2
TRANSFER BUSRELAY 2
11
TRANSFER BUS 1TRANSFER BUS 1
TRANSFER BUSRELAY 1
11
MAIN BUS 1MAIN BUS 1
GENERATOR BUS 1GENERATOR BUS 1 GENERATOR BUS 2GENERATOR BUS 2
EXTERNAL ACRECEPTACLE
BUS PROTECTION PANELBUS PROTECTION PANELVF
ENGINE DRIVENGENERATOR 1
VF
A
F V
AENGINE DRIVENGENERATOR 2
VF
A
APU GEN
EXTERNAL AC BUSEXTERNAL AC BUS
V F
AC STANDBY BUSAC STANDBY BUS
11
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 17 of 90
ATT
RR22
737-300/400 Electrical Schematic
Transfer bus 2 powers TR2. 22
11NORMALPOWERSOURCE
AC POWERAC POWER
DC POWERDC POWER
ALTERNATEPOWERSOURCE
LEGEND
ATT
RR11
GROUND SERVICE BUSGROUND SERVICE BUS
GROUNDSERVICESWITCH
MAIN BUS 2MAIN BUS 2
2222
TRANSFER BUS 2TRANSFER BUS 2
TRANSFER BUSRELAY 2
11
TRANSFER BUS 1TRANSFER BUS 1
TRANSFER BUSRELAY 1
11
MAIN BUS 1MAIN BUS 1
GENERATOR BUS 1GENERATOR BUS 1 GENERATOR BUS 2GENERATOR BUS 2
EXTERNAL ACRECEPTACLE
BUS PROTECTION PANELBUS PROTECTION PANELVF
ENGINE DRIVENGENERATOR 1
VF
A
F V
AENGINE DRIVENGENERATOR 2
VF
A
APU GEN
EXTERNAL AC BUSEXTERNAL AC BUS
V F
AC STANDBY BUSAC STANDBY BUS
11
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 18 of 90
V
ATT
RR33
737-300/400 Electrical Schematic
Main bus 2 powers TR3. 22
11NORMALPOWERSOURCE
AC POWERAC POWER
DC POWERDC POWER
ALTERNATEPOWERSOURCE
LEGEND
ATT
RR22A
TTRR11
GROUND SERVICE BUSGROUND SERVICE BUS
GROUNDSERVICESWITCH
MAIN BUS 2MAIN BUS 2
2222
TRANSFER BUS 2TRANSFER BUS 2
TRANSFER BUSRELAY 2
11
TRANSFER BUS 1TRANSFER BUS 1
TRANSFER BUSRELAY 1
11
MAIN BUS 1MAIN BUS 1
GENERATOR BUS 1GENERATOR BUS 1 GENERATOR BUS 2GENERATOR BUS 2
EXTERNAL ACRECEPTACLE
BUS PROTECTION PANELBUS PROTECTION PANELVF
ENGINE DRIVENGENERATOR 1
VF
A
F V
AENGINE DRIVENGENERATOR 2
VF
A
APU GEN
EXTERNAL AC BUSEXTERNAL AC BUS
V F
AC STANDBY BUSAC STANDBY BUS
11
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 19 of 90
V DC BUS 1DC BUS 1
737-300/400 Electrical Schematic
TR1 powers DC bus 1. 22
11NORMALPOWERSOURCE
AC POWERAC POWER
DC POWERDC POWER
ALTERNATEPOWERSOURCE
LEGENDV
ATT
RR33A
TTRR22
ATT
RR11
GROUND SERVICE BUSGROUND SERVICE BUS
GROUNDSERVICESWITCH
MAIN BUS 2MAIN BUS 2
2222
TRANSFER BUS 2TRANSFER BUS 2
TRANSFER BUSRELAY 2
11
TRANSFER BUS 1TRANSFER BUS 1
TRANSFER BUSRELAY 1
11
MAIN BUS 1MAIN BUS 1
GENERATOR BUS 1GENERATOR BUS 1 GENERATOR BUS 2GENERATOR BUS 2
EXTERNAL ACRECEPTACLE
BUS PROTECTION PANELBUS PROTECTION PANELVF
ENGINE DRIVENGENERATOR 1
VF
A
F V
AENGINE DRIVENGENERATOR 2
VF
A
APU GEN
EXTERNAL AC BUSEXTERNAL AC BUS
V F
AC STANDBY BUSAC STANDBY BUS
11
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 20 of 90
737-300/400 Electrical Schematic
TR2 powers DC bus 2. 22
11NORMALPOWERSOURCE
AC POWERAC POWER
DC POWERDC POWER
ALTERNATEPOWERSOURCE
LEGEND
V DC BUS 1DC BUS 1
V
ATT
RR33A
TTRR22
ATT
RR11
GROUND SERVICE BUSGROUND SERVICE BUS
GROUNDSERVICESWITCH
MAIN BUS 2MAIN BUS 2
2222
TRANSFER BUS 2TRANSFER BUS 2
TRANSFER BUSRELAY 2
11
TRANSFER BUS 1TRANSFER BUS 1
TRANSFER BUSRELAY 1
11
MAIN BUS 1MAIN BUS 1
GENERATOR BUS 1GENERATOR BUS 1 GENERATOR BUS 2GENERATOR BUS 2
EXTERNAL ACRECEPTACLE
BUS PROTECTION PANELBUS PROTECTION PANELVF
ENGINE DRIVENGENERATOR 1
VF
A
F V
AENGINE DRIVENGENERATOR 2
VF
A
APU GEN
EXTERNAL AC BUSEXTERNAL AC BUS
V F
AC STANDBY BUSAC STANDBY BUS
11
VDC BUS 2DC BUS 2
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 21 of 90
737-300/400 Electrical Schematic
TR1 and TR2 are connected via the TR3 disconnect relay.
22
11NORMALPOWERSOURCE
AC POWERAC POWER
DC POWERDC POWER
ALTERNATEPOWERSOURCE
LEGEND
V DC BUS 1DC BUS 1
V
ATT
RR33A
TTRR22
ATT
RR11
GROUND SERVICE BUSGROUND SERVICE BUS
GROUNDSERVICESWITCH
MAIN BUS 2MAIN BUS 2
2222
TRANSFER BUS 2TRANSFER BUS 2
TRANSFER BUSRELAY 2
11
TRANSFER BUS 1TRANSFER BUS 1
TRANSFER BUSRELAY 1
11
MAIN BUS 1MAIN BUS 1
GENERATOR BUS 1GENERATOR BUS 1 GENERATOR BUS 2GENERATOR BUS 2
EXTERNAL ACRECEPTACLE
BUS PROTECTION PANELBUS PROTECTION PANELVF
ENGINE DRIVENGENERATOR 1
VF
A
F V
AENGINE DRIVENGENERATOR 2
VF
A
APU GEN
EXTERNAL AC BUSEXTERNAL AC BUS
V F
AC STANDBY BUSAC STANDBY BUS
11
VDC BUS 2DC BUS 2TR3 DISCONNECTRELAY
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 22 of 90
V
BATTERYBUSBATTERYBUS 11
737-300/400 Electrical Schematic
The normal power source to the battery bus is TR3.
22
11NORMALPOWERSOURCE
AC POWERAC POWER
DC POWERDC POWER
ALTERNATEPOWERSOURCE
LEGEND
V DC BUS 1DC BUS 1
V
ATT
RR33A
TTRR22
ATT
RR11
GROUND SERVICE BUSGROUND SERVICE BUS
GROUNDSERVICESWITCH
MAIN BUS 2MAIN BUS 2
2222
TRANSFER BUS 2TRANSFER BUS 2
TRANSFER BUSRELAY 2
11
TRANSFER BUS 1TRANSFER BUS 1
TRANSFER BUSRELAY 1
11
MAIN BUS 1MAIN BUS 1
GENERATOR BUS 1GENERATOR BUS 1 GENERATOR BUS 2GENERATOR BUS 2
EXTERNAL ACRECEPTACLE
BUS PROTECTION PANELBUS PROTECTION PANELVF
ENGINE DRIVENGENERATOR 1
VF
A
F V
AENGINE DRIVENGENERATOR 2
VF
A
APU GEN
EXTERNAL AC BUSEXTERNAL AC BUS
V F
AC STANDBY BUSAC STANDBY BUS
11
VDC BUS 2DC BUS 2TR3 DISCONNECTRELAY
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 23 of 90
737-300/400 Electrical Schematic
TR3 is a backup to TR1 and TR2.TR1 and TR2 do not backup TR3.
22
11NORMALPOWERSOURCE
AC POWERAC POWER
DC POWERDC POWER
ALTERNATEPOWERSOURCE
LEGEND
V
BATTERYBUSBATTERYBUS 11
V DC BUS 1DC BUS 1
V
ATT
RR33A
TTRR22
ATT
RR11
GROUND SERVICE BUSGROUND SERVICE BUS
GROUNDSERVICESWITCH
MAIN BUS 2MAIN BUS 2
2222
TRANSFER BUS 2TRANSFER BUS 2
TRANSFER BUSRELAY 2
11
TRANSFER BUS 1TRANSFER BUS 1
TRANSFER BUSRELAY 1
11
MAIN BUS 1MAIN BUS 1
GENERATOR BUS 1GENERATOR BUS 1 GENERATOR BUS 2GENERATOR BUS 2
EXTERNAL ACRECEPTACLE
BUS PROTECTION PANELBUS PROTECTION PANELVF
ENGINE DRIVENGENERATOR 1
VF
A
F V
AENGINE DRIVENGENERATOR 2
VF
A
APU GEN
EXTERNAL AC BUSEXTERNAL AC BUS
V F
AC STANDBY BUSAC STANDBY BUS
11
VDC BUS 2DC BUS 2TR3 DISCONNECTRELAY
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 24 of 90
V
DC STANDBY BUSDC STANDBY BUS
11
737-300/400 Electrical Schematic
The normal power source to the DC standby bus is DC bus 1.
22
11NORMALPOWERSOURCE
AC POWERAC POWER
DC POWERDC POWER
ALTERNATEPOWERSOURCE
LEGEND
V
BATTERYBUSBATTERYBUS 11
V DC BUS 1DC BUS 1
V
ATT
RR33A
TTRR22
ATT
RR11
GROUND SERVICE BUSGROUND SERVICE BUS
GROUNDSERVICESWITCH
MAIN BUS 2MAIN BUS 2
2222
TRANSFER BUS 2TRANSFER BUS 2
TRANSFER BUSRELAY 2
11
TRANSFER BUS 1TRANSFER BUS 1
TRANSFER BUSRELAY 1
11
MAIN BUS 1MAIN BUS 1
GENERATOR BUS 1GENERATOR BUS 1 GENERATOR BUS 2GENERATOR BUS 2
EXTERNAL ACRECEPTACLE
BUS PROTECTION PANELBUS PROTECTION PANELVF
ENGINE DRIVENGENERATOR 1
VF
A
F V
AENGINE DRIVENGENERATOR 2
VF
A
APU GEN
EXTERNAL AC BUSEXTERNAL AC BUS
V F
AC STANDBY BUSAC STANDBY BUS
11
VDC BUS 2DC BUS 2TR3 DISCONNECTRELAY
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 25 of 90
737-300/400 Electrical Schematic
22
11NORMALPOWERSOURCE
AC POWERAC POWER
DC POWERDC POWER
ALTERNATEPOWERSOURCE
LEGEND
V V
DC STANDBY BUSDC STANDBY BUS
V DC BUS 1DC BUS 1
V
ATT
RR33A
TTRR22
ATT
RR11
GROUND SERVICE BUSGROUND SERVICE BUS
GROUNDSERVICESWITCH
MAIN BUS 2MAIN BUS 2
2222
TRANSFER BUS 2TRANSFER BUS 2
TRANSFER BUSRELAY 2
11
TRANSFER BUS 1TRANSFER BUS 1
TRANSFER BUSRELAY 1
11
MAIN BUS 1MAIN BUS 1
GENERATOR BUS 1GENERATOR BUS 1 GENERATOR BUS 2GENERATOR BUS 2
EXTERNAL ACRECEPTACLE
BUS PROTECTION PANELBUS PROTECTION PANELVF
ENGINE DRIVENGENERATOR 1
VF
A
F V
AENGINE DRIVENGENERATOR 2
VF
A
APU GEN
EXTERNAL AC BUSEXTERNAL AC BUS
V F
AC STANDBY BUSAC STANDBY BUS
11
VDC BUS 2DC BUS 2TR3 DISCONNECTRELAY
11BATTERYBUSBATTERYBUS 11
The alternate power source to the DC standby bus is the battery bus.
22
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 26 of 90
737-300/400 Electrical Schematic
22
11NORMALPOWERSOURCE
AC POWERAC POWER
DC POWERDC POWER
ALTERNATEPOWERSOURCE
LEGEND
V V
DC STANDBY BUSDC STANDBY BUS
V DC BUS 1DC BUS 1
V
ATT
RR33A
TTRR22
ATT
RR11
GROUND SERVICE BUSGROUND SERVICE BUS
GROUNDSERVICESWITCH
MAIN BUS 2MAIN BUS 2
2222
TRANSFER BUS 2TRANSFER BUS 2
TRANSFER BUSRELAY 2
11
TRANSFER BUS 1TRANSFER BUS 1
TRANSFER BUSRELAY 1
11
MAIN BUS 1MAIN BUS 1
GENERATOR BUS 1GENERATOR BUS 1 GENERATOR BUS 2GENERATOR BUS 2
EXTERNAL ACRECEPTACLE
BUS PROTECTION PANELBUS PROTECTION PANELVF
ENGINE DRIVENGENERATOR 1
VF
A
F V
AENGINE DRIVENGENERATOR 2
VF
A
APU GEN
EXTERNAL AC BUSEXTERNAL AC BUS
V F
AC STANDBY BUSAC STANDBY BUS
11
VDC BUS 2DC BUS 2TR3 DISCONNECTRELAY
11BATTERYBUSBATTERYBUS 1122
V F
STATICSTATICINVERTERINVERTER
22
The alternate power source to the AC standby bus is the battery bus via the
static inverter.
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 27 of 90
737-300/400 Electrical Schematic
22
11NORMALPOWERSOURCE
AC POWERAC POWER
DC POWERDC POWER
ALTERNATEPOWERSOURCE
LEGEND
V V
DC STANDBY BUSDC STANDBY BUS
V DC BUS 1DC BUS 1
V
ATT
RR33A
TTRR22
ATT
RR11
GROUND SERVICE BUSGROUND SERVICE BUS
GROUNDSERVICESWITCH
MAIN BUS 2MAIN BUS 2
2222
TRANSFER BUS 2TRANSFER BUS 2
TRANSFER BUSRELAY 2
11
TRANSFER BUS 1TRANSFER BUS 1
TRANSFER BUSRELAY 1
11
MAIN BUS 1MAIN BUS 1
GENERATOR BUS 1GENERATOR BUS 1 GENERATOR BUS 2GENERATOR BUS 2
EXTERNAL ACRECEPTACLE
BUS PROTECTION PANELBUS PROTECTION PANELVF
ENGINE DRIVENGENERATOR 1
VF
A
F V
AENGINE DRIVENGENERATOR 2
VF
A
APU GEN
EXTERNAL AC BUSEXTERNAL AC BUS
V F
AC STANDBY BUSAC STANDBY BUS
11
VDC BUS 2DC BUS 2TR3 DISCONNECTRELAY
11BATTERYBUSBATTERYBUS 1122
V F
STATICSTATICINVERTERINVERTER
22
The normal power source to the battery charger is the ground service bus.
APU STARTBATTERY CHARGER
CUTOUT RELAY
11 BATTERYBATTERYCHARGERCHARGER
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 28 of 90
737-300/400 Electrical Schematic
22
11NORMALPOWERSOURCE
AC POWERAC POWER
DC POWERDC POWER
ALTERNATEPOWERSOURCE
LEGEND
V V
DC STANDBY BUSDC STANDBY BUS
V DC BUS 1DC BUS 1
V
ATT
RR33A
TTRR22
ATT
RR11
GROUND SERVICE BUSGROUND SERVICE BUS
GROUNDSERVICESWITCH
MAIN BUS 2MAIN BUS 2
2222
TRANSFER BUS 2TRANSFER BUS 2
TRANSFER BUSRELAY 2
11
TRANSFER BUS 1TRANSFER BUS 1
TRANSFER BUSRELAY 1
11
MAIN BUS 1MAIN BUS 1
GENERATOR BUS 1GENERATOR BUS 1 GENERATOR BUS 2GENERATOR BUS 2
EXTERNAL ACRECEPTACLE
BUS PROTECTION PANELBUS PROTECTION PANELVF
ENGINE DRIVENGENERATOR 1
VF
A
F V
AENGINE DRIVENGENERATOR 2
VF
A
APU GEN
EXTERNAL AC BUSEXTERNAL AC BUS
V F
AC STANDBY BUSAC STANDBY BUS
11
VDC BUS 2DC BUS 2TR3 DISCONNECTRELAY
11BATTERYBUSBATTERYBUS 1122
V F
STATICSTATICINVERTERINVERTER
22
APU STARTBATTERY CHARGER
CUTOUT RELAY
11 BATTERYBATTERYCHARGERCHARGER
The alternate power source to the battery charger is main bus 2.
22
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 29 of 90
737-300/400 Electrical Schematic
22
11NORMALPOWERSOURCE
AC POWERAC POWER
DC POWERDC POWER
ALTERNATEPOWERSOURCE
LEGEND
V V
DC STANDBY BUSDC STANDBY BUS
V DC BUS 1DC BUS 1
V
ATT
RR33A
TTRR22
ATT
RR11
GROUND SERVICE BUSGROUND SERVICE BUS
GROUNDSERVICESWITCH
MAIN BUS 2MAIN BUS 2
2222
TRANSFER BUS 2TRANSFER BUS 2
TRANSFER BUSRELAY 2
11
TRANSFER BUS 1TRANSFER BUS 1
TRANSFER BUSRELAY 1
11
MAIN BUS 1MAIN BUS 1
GENERATOR BUS 1GENERATOR BUS 1 GENERATOR BUS 2GENERATOR BUS 2
EXTERNAL ACRECEPTACLE
BUS PROTECTION PANELBUS PROTECTION PANELVF
ENGINE DRIVENGENERATOR 1
VF
A
F V
AENGINE DRIVENGENERATOR 2
VF
A
APU GEN
EXTERNAL AC BUSEXTERNAL AC BUS
V F
AC STANDBY BUSAC STANDBY BUS
11
VDC BUS 2DC BUS 2TR3 DISCONNECTRELAY
11BATTERYBUSBATTERYBUS 1122
V F
STATICSTATICINVERTERINVERTER
22
APU STARTBATTERY CHARGER
CUTOUT RELAY
11 BATTERYBATTERYCHARGERCHARGER
22
The alternate power source to the battery bus is the hot battery bus.
HOT BATTERYBUSHOT BATTERYBUS
22V
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 30 of 90
737-300/400 Electrical Schematic
22
11NORMALPOWERSOURCE
AC POWERAC POWER
DC POWERDC POWER
ALTERNATEPOWERSOURCE
LEGEND
V V
DC STANDBY BUSDC STANDBY BUS
V DC BUS 1DC BUS 1
V
ATT
RR33A
TTRR22
ATT
RR11
GROUND SERVICE BUSGROUND SERVICE BUS
GROUNDSERVICESWITCH
MAIN BUS 2MAIN BUS 2
2222
TRANSFER BUS 2TRANSFER BUS 2
TRANSFER BUSRELAY 2
11
TRANSFER BUS 1TRANSFER BUS 1
TRANSFER BUSRELAY 1
11
MAIN BUS 1MAIN BUS 1
GENERATOR BUS 1GENERATOR BUS 1 GENERATOR BUS 2GENERATOR BUS 2
EXTERNAL ACRECEPTACLE
BUS PROTECTION PANELBUS PROTECTION PANELVF
ENGINE DRIVENGENERATOR 1
VF
A
F V
AENGINE DRIVENGENERATOR 2
VF
A
APU GEN
EXTERNAL AC BUSEXTERNAL AC BUS
V F
AC STANDBY BUSAC STANDBY BUS
11
VDC BUS 2DC BUS 2TR3 DISCONNECTRELAY
11BATTERYBUSBATTERYBUS 1122
V F
STATICSTATICINVERTERINVERTER
22
APU STARTBATTERY CHARGER
CUTOUT RELAY
11 BATTERYBATTERYCHARGERCHARGER
22
HOT BATTERYBUSHOT BATTERYBUS
22V
When needed, the battery charger re-charges the battery.
BATTERYBATTERY
ASee picture of See picture of batterybattery
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 31 of 90
737-300/400 Electrical Schematic
22
11NORMALPOWERSOURCE
AC POWERAC POWER
DC POWERDC POWER
ALTERNATEPOWERSOURCE
LEGEND
V V
DC STANDBY BUSDC STANDBY BUS
V DC BUS 1DC BUS 1
V
ATT
RR33A
TTRR22
ATT
RR11
GROUND SERVICE BUSGROUND SERVICE BUS
GROUNDSERVICESWITCH
MAIN BUS 2MAIN BUS 2
2222
TRANSFER BUS 2TRANSFER BUS 2
TRANSFER BUSRELAY 2
11
TRANSFER BUS 1TRANSFER BUS 1
TRANSFER BUSRELAY 1
11
MAIN BUS 1MAIN BUS 1
GENERATOR BUS 1GENERATOR BUS 1 GENERATOR BUS 2GENERATOR BUS 2
EXTERNAL ACRECEPTACLE
BUS PROTECTION PANELBUS PROTECTION PANELVF
ENGINE DRIVENGENERATOR 1
VF
A
F V
AENGINE DRIVENGENERATOR 2
VF
A
APU GEN
EXTERNAL AC BUSEXTERNAL AC BUS
V F
AC STANDBY BUSAC STANDBY BUS
11
VDC BUS 2DC BUS 2TR3 DISCONNECTRELAY
11BATTERYBUSBATTERYBUS 1122
V F
STATICSTATICINVERTERINVERTER
22
APU STARTBATTERY CHARGER
CUTOUT RELAY
11 BATTERYBATTERYCHARGERCHARGER
22
HOT BATTERYBUSHOT BATTERYBUS
22V
BATTERYBATTERY
A
Either the battery charger or the battery can provide power to the hot battery bus.
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 32 of 90
737-300/400 Electrical Schematic
22
11NORMALPOWERSOURCE
AC POWERAC POWER
DC POWERDC POWER
ALTERNATEPOWERSOURCE
LEGEND
V V
DC STANDBY BUSDC STANDBY BUS
V DC BUS 1DC BUS 1
V
ATT
RR33A
TTRR22
ATT
RR11
GROUND SERVICE BUSGROUND SERVICE BUS
GROUNDSERVICESWITCH
MAIN BUS 2MAIN BUS 2
2222
TRANSFER BUS 2TRANSFER BUS 2
TRANSFER BUSRELAY 2
11
TRANSFER BUS 1TRANSFER BUS 1
TRANSFER BUSRELAY 1
11
MAIN BUS 1MAIN BUS 1
GENERATOR BUS 1GENERATOR BUS 1 GENERATOR BUS 2GENERATOR BUS 2
EXTERNAL ACRECEPTACLE
BUS PROTECTION PANELBUS PROTECTION PANELVF
ENGINE DRIVENGENERATOR 1
VF
A
F V
AENGINE DRIVENGENERATOR 2
VF
A
APU GEN
EXTERNAL AC BUSEXTERNAL AC BUS
V F
AC STANDBY BUSAC STANDBY BUS
11
VDC BUS 2DC BUS 2TR3 DISCONNECTRELAY
11BATTERYBUSBATTERYBUS 1122
V F
STATICSTATICINVERTERINVERTER
22
APU STARTBATTERY CHARGER
CUTOUT RELAY
11 BATTERYBATTERYCHARGERCHARGER
22
HOT BATTERYBUSHOT BATTERYBUS
22V
BATTERYBATTERY
A
In the case of a dead battery, an external DC power source may be plugged into the external DC receptacle, which in turn
replaces the battery as a power source.
EXTERNAL DCRECEPTACLE
See picture of See picture of external DCexternal DCreceptaclereceptacle
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 33 of 90
SWITCHED HOT BATTERY BUSSWITCHED HOT BATTERY BUS
737-300/400 Electrical Schematic
22
11NORMALPOWERSOURCE
AC POWERAC POWER
DC POWERDC POWER
ALTERNATEPOWERSOURCE
LEGEND
V V
DC STANDBY BUSDC STANDBY BUS
V DC BUS 1DC BUS 1
V
ATT
RR33A
TTRR22
ATT
RR11
GROUND SERVICE BUSGROUND SERVICE BUS
GROUNDSERVICESWITCH
MAIN BUS 2MAIN BUS 2
2222
TRANSFER BUS 2TRANSFER BUS 2
TRANSFER BUSRELAY 2
11
TRANSFER BUS 1TRANSFER BUS 1
TRANSFER BUSRELAY 1
11
MAIN BUS 1MAIN BUS 1
GENERATOR BUS 1GENERATOR BUS 1 GENERATOR BUS 2GENERATOR BUS 2
EXTERNAL ACRECEPTACLE
BUS PROTECTION PANELBUS PROTECTION PANELVF
ENGINE DRIVENGENERATOR 1
VF
A
F V
AENGINE DRIVENGENERATOR 2
VF
A
APU GEN
EXTERNAL AC BUSEXTERNAL AC BUS
V F
AC STANDBY BUSAC STANDBY BUS
11
VDC BUS 2DC BUS 2TR3 DISCONNECTRELAY
11BATTERYBUSBATTERYBUS 1122
V F
STATICSTATICINVERTERINVERTER
22
APU STARTBATTERY CHARGER
CUTOUT RELAY
11 BATTERYBATTERYCHARGERCHARGER
22
HOT BATTERYBUSHOT BATTERYBUS
22V
BATTERYBATTERY
AEXTERNAL DCRECEPTACLE
The only power source to the switched hot battery bus is the battery.
This concludes the review of the Electrical Schematic. The remainder of the presentation This concludes the review of the Electrical Schematic. The remainder of the presentation will discuss the electrical system in greater detail. Click will discuss the electrical system in greater detail. Click NextNext to continue. to continue.
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 34 of 90
AC/DC Metering PanelAC/DC Metering Panel
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 35 of 90
AC/DC Metering PanelAC/DC Metering PanelDC AMPS (DC Ammeter):DC AMPS (DC Ammeter):Indicates current of Indicates current of source selected by DC source selected by DC meter selector.meter selector.
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 36 of 90
AC/DC Metering PanelAC/DC Metering Panel
DC VOLTS (DC Voltmeter): DC VOLTS (DC Voltmeter): Indicates voltage of source Indicates voltage of source selected by DC meter selected by DC meter selector.selector.
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 37 of 90
AC/DC Metering PanelAC/DC Metering PanelAC Frequency Meter AC Frequency Meter (cycles per second):(cycles per second):Indicates frequency of Indicates frequency of source selected by AC source selected by AC meter selector.meter selector.
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 38 of 90
AC/DC Metering PanelAC/DC Metering PanelAC Voltmeter:AC Voltmeter:130 V scale –130 V scale –Indicates voltage of Indicates voltage of source selected by the source selected by the AC meter selector.AC meter selector.
30 V scale –30 V scale –Indicates residual Indicates residual voltage of generator voltage of generator selected when RESID selected when RESID VOLTS switch is VOLTS switch is pressed.pressed.
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 39 of 90
AC/DC Metering PanelAC/DC Metering Panel
DC Meter Selector:DC Meter Selector:Selects the DC source Selects the DC source for the DC voltmeter for the DC voltmeter and DC ammeter and DC ammeter indications.indications.
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 40 of 90
AC/DC Metering PanelAC/DC Metering Panel
AC Meter Selector:AC Meter Selector:Selects the AC source for Selects the AC source for the AC frequency meter the AC frequency meter and AC voltmeter.and AC voltmeter.
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 41 of 90
BAT SwitchBAT SwitchBAT (Battery) Switch:BAT (Battery) Switch:OFF –OFF –• Removes power Removes power
from the battery bus from the battery bus and switched hot and switched hot battery bus when battery bus when operating with operating with normal power normal power sources available.sources available.
• Removes power Removes power from battery bus, from battery bus, switched hot battery switched hot battery bus, DC standby bus, DC standby bus, static inverter, bus, static inverter, and AC standby bus and AC standby bus when the battery is when the battery is the only power the only power source.source.
BAT (Battery) Switch:BAT (Battery) Switch:ON –ON –• Provides power to Provides power to
switched hot battery switched hot battery bus and battery bus.bus and battery bus.
• Energizes relays to Energizes relays to provide automatic provide automatic switching of standby switching of standby electrical system to electrical system to battery power with battery power with loss of normal loss of normal power.power.
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 42 of 90
GALLEY Power SwitchGALLEY Power Switch
GALLEY Power Switch:GALLEY Power Switch:ON –ON –Electrical power is Electrical power is supplied to galleys when supplied to galleys when both AC generator both AC generator busses are powered.busses are powered.
OFF –OFF –Removes electrical Removes electrical power from galleys.power from galleys.
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 43 of 90
RESID VOLTS SwitchRESID VOLTS SwitchRESID VOLTS Switch:RESID VOLTS Switch:PRESS –PRESS –30V scale of AC 30V scale of AC voltmeter indicates voltmeter indicates residual voltage of residual voltage of generator selected.generator selected.
Caution: If residual Caution: If residual voltage is checked voltage is checked with respective with respective generator online, the generator online, the reading is invalid and reading is invalid and damage to the damage to the voltmeter may result.voltmeter may result.
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 44 of 90
Normal IndicationsNormal IndicationsDC Metering PanelDC Metering Panel
Normal indications with STBY PWR Normal indications with STBY PWR selected are:selected are:
0 (zero) DC amps.0 (zero) DC amps.
Depends on amount of Depends on amount of voltage demanded from voltage demanded from the DC standby bus.the DC standby bus.Normally 22 - 30 DC volts.Normally 22 - 30 DC volts.
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 45 of 90
Normal IndicationsNormal IndicationsDC Metering PanelDC Metering Panel
Normal indications with BAT BUS Normal indications with BAT BUS selected are:selected are:
0 (zero) DC amps.0 (zero) DC amps.
Depends on amount of Depends on amount of voltage demanded from voltage demanded from the battery bus.the battery bus.Normally 22 - 30 DC volts.Normally 22 - 30 DC volts.
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 46 of 90
Normal IndicationsNormal IndicationsDC Metering PanelDC Metering Panel
Normal indications with BAT Normal indications with BAT selected are:selected are:
•If battery being charged:If battery being charged:Needle deflection to right.Needle deflection to right.•If battery being discharged:If battery being discharged:Needle deflection to left.Needle deflection to left.•If battery in steady state:If battery in steady state:0 (zero) DC amps.0 (zero) DC amps.
Depends on amount of Depends on amount of voltage demanded from voltage demanded from the hot battery bus.the hot battery bus.Normally 22 - 30 DC volts.Normally 22 - 30 DC volts.
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 47 of 90
Normal IndicationsNormal IndicationsDC Metering PanelDC Metering Panel
Normal indications with TRNormal indications with TR11 selected are:selected are:
Depends on amount of Depends on amount of amps being produced by amps being produced by TRTR11..
Depends on amount of Depends on amount of voltage demanded from voltage demanded from the DC bus 1.the DC bus 1.
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 48 of 90
737-300/400 Electrical Schematic
V
V
VVV F
V F
A A
DC STANDBY BUSDC STANDBY BUS
EXTERNAL AC BUSEXTERNAL AC BUS
GENERATOR BUS 2GENERATOR BUS 2
MAIN BUS 2MAIN BUS 2TRANSFER BUS 1TRANSFER BUS 1 TRANSFER BUS 2TRANSFER BUS 2MAIN BUS 1MAIN BUS 1GROUND SERVICE BUSGROUND SERVICE BUS
ENGINE DRIVENGENERATOR 1
VF
A
EXTERNAL ACRECEPTACLE
GENERATOR BUS 1GENERATOR BUS 1
VF
GROUNDSERVICESWITCH
VF
A
APU GEN
BUS PROTECTION PANELBUS PROTECTION PANEL
F V
AENGINE DRIVENGENERATOR 2
TRANSFER BUSRELAY 1
22 22
TRANSFER BUSRELAY 2
DC BUS 2DC BUS 2
TTRR22
TR3 DISCONNECTRELAY
TTRR33
11
11 11
BATTERYBUSBATTERYBUS
HOT BATTERYBUSHOT BATTERYBUS
11
22
22
SWITCHED HOT BATTERY BUSSWITCHED HOT BATTERY BUS
STATICSTATICINVERTERINVERTER
AC STANDBY BUSAC STANDBY BUS
11
22
BATTERYBATTERY EXTERNAL DCRECEPTACLE
VBATTERYBATTERYCHARGERCHARGER
22
11
APU STARTBATTERY CHARGER
CUTOUT RELAY
A 22
11PRIMARYPOWERSOURCE
AC POWERAC POWER
DC POWERDC POWER
SECONDARYPOWERSOURCE
LEGEND
V
A
DC BUS 1DC BUS 1
TTRR11
V
A
DC BUS 1DC BUS 1
TTRR11
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 49 of 90
Normal IndicationsNormal IndicationsDC Metering PanelDC Metering Panel
Normal indications with TRNormal indications with TR22 selected are:selected are:
Depends on amount of Depends on amount of amps being produced by amps being produced by TRTR22..
Depends on amount of Depends on amount of voltage demanded from voltage demanded from DC bus 2.DC bus 2.
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 50 of 90
737-300/400 Electrical Schematic
V
A
DC BUS 1DC BUS 1
TTRR11
V
VVV F
V F
A
DC STANDBY BUSDC STANDBY BUS
EXTERNAL AC BUSEXTERNAL AC BUS
GENERATOR BUS 2GENERATOR BUS 2
MAIN BUS 2MAIN BUS 2TRANSFER BUS 1TRANSFER BUS 1 TRANSFER BUS 2TRANSFER BUS 2MAIN BUS 1MAIN BUS 1GROUND SERVICE BUSGROUND SERVICE BUS
ENGINE DRIVENGENERATOR 1
VF
A
EXTERNAL ACRECEPTACLE
GENERATOR BUS 1GENERATOR BUS 1
VF
GROUNDSERVICESWITCH
VF
A
APU GEN
BUS PROTECTION PANELBUS PROTECTION PANEL
F V
AENGINE DRIVENGENERATOR 2
TRANSFER BUSRELAY 1
22 22
TRANSFER BUSRELAY 2
TR3 DISCONNECTRELAY
TTRR33
11
11 11
BATTERYBUSBATTERYBUS
HOT BATTERYBUSHOT BATTERYBUS
11
22
22
SWITCHED HOT BATTERY BUSSWITCHED HOT BATTERY BUS
STATICSTATICINVERTERINVERTER
AC STANDBY BUSAC STANDBY BUS
11
22
BATTERYBATTERY EXTERNAL DCRECEPTACLE
VBATTERYBATTERYCHARGERCHARGER
22
11
APU STARTBATTERY CHARGER
CUTOUT RELAY
A 22
11PRIMARYPOWERSOURCE
AC POWERAC POWER
DC POWERDC POWER
SECONDARYPOWERSOURCE
LEGEND
V
A
DC BUS 2DC BUS 2
TTRR22
V
A
DC BUS 2DC BUS 2
TTRR22
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 51 of 90
Normal IndicationsNormal IndicationsDC Metering PanelDC Metering Panel
Normal indications with TRNormal indications with TR33 selected are:selected are:
Depends on amount of Depends on amount of amps being produced amps being produced by TRby TR33..
Depends on amount of Depends on amount of voltage demanded from voltage demanded from TRTR33..
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 52 of 90
737-300/400 Electrical Schematic
V
A
DC BUS 2DC BUS 2
TTRR22
V
A
DC BUS 1DC BUS 1
TTRR11
VVV F
V F
DC STANDBY BUSDC STANDBY BUS
EXTERNAL AC BUSEXTERNAL AC BUS
GENERATOR BUS 2GENERATOR BUS 2
MAIN BUS 2MAIN BUS 2TRANSFER BUS 1TRANSFER BUS 1 TRANSFER BUS 2TRANSFER BUS 2MAIN BUS 1MAIN BUS 1GROUND SERVICE BUSGROUND SERVICE BUS
ENGINE DRIVENGENERATOR 1
VF
A
EXTERNAL ACRECEPTACLE
GENERATOR BUS 1GENERATOR BUS 1
VF
GROUNDSERVICESWITCH
VF
A
APU GEN
BUS PROTECTION PANELBUS PROTECTION PANEL
F V
AENGINE DRIVENGENERATOR 2
TRANSFER BUSRELAY 1
22 22
TRANSFER BUSRELAY 2
TR3 DISCONNECTRELAY
11
11 11
BATTERYBUSBATTERYBUS
HOT BATTERYBUSHOT BATTERYBUS
11
22
22
SWITCHED HOT BATTERY BUSSWITCHED HOT BATTERY BUS
STATICSTATICINVERTERINVERTER
AC STANDBY BUSAC STANDBY BUS
11
22
BATTERYBATTERY EXTERNAL DCRECEPTACLE
VBATTERYBATTERYCHARGERCHARGER
22
11
APU STARTBATTERY CHARGER
CUTOUT RELAY
A 22
11PRIMARYPOWERSOURCE
AC POWERAC POWER
DC POWERDC POWER
SECONDARYPOWERSOURCE
LEGENDV
ATT
RR33
V
ATT
RR33
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 53 of 90
NonNon-Normal Indications-Normal IndicationsDC Metering PanelDC Metering Panel
Indications of an inoperative Indications of an inoperative TRTR11 are: are:
0 (zero) DC amps.0 (zero) DC amps.
Depends on amount of Depends on amount of voltage demanded from voltage demanded from DC bus 1. Power to DC DC bus 1. Power to DC bus 1 is now from TRbus 1 is now from TR22 and and TRTR33 (via the TR (via the TR33 disconnect relay).disconnect relay).
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 54 of 90
737-300/400 Electrical Schematic
V
V
VVV F
V F
A A
DC STANDBY BUSDC STANDBY BUS
EXTERNAL AC BUSEXTERNAL AC BUS
GENERATOR BUS 2GENERATOR BUS 2
MAIN BUS 2MAIN BUS 2TRANSFER BUS 1TRANSFER BUS 1 TRANSFER BUS 2TRANSFER BUS 2MAIN BUS 1MAIN BUS 1GROUND SERVICE BUSGROUND SERVICE BUS
ENGINE DRIVENGENERATOR 1
VF
A
EXTERNAL ACRECEPTACLE
GENERATOR BUS 1GENERATOR BUS 1
VF
GROUNDSERVICESWITCH
VF
A
APU GEN
BUS PROTECTION PANELBUS PROTECTION PANEL
F V
AENGINE DRIVENGENERATOR 2
TRANSFER BUSRELAY 1
22 22
TRANSFER BUSRELAY 2
DC BUS 2DC BUS 2
TTRR22
TR3 DISCONNECTRELAY
TTRR33
11
11 11
BATTERYBUSBATTERYBUS
HOT BATTERYBUSHOT BATTERYBUS
11
22
22
SWITCHED HOT BATTERY BUSSWITCHED HOT BATTERY BUS
STATICSTATICINVERTERINVERTER
AC STANDBY BUSAC STANDBY BUS
11
22
BATTERYBATTERY EXTERNAL DCRECEPTACLE
VBATTERYBATTERYCHARGERCHARGER
22
11
APU STARTBATTERY CHARGER
CUTOUT RELAY
A 22
11PRIMARYPOWERSOURCE
AC POWERAC POWER
DC POWERDC POWER
SECONDARYPOWERSOURCE
LEGEND
V
A
DC BUS 1DC BUS 1
TTRR11
V
A
DC BUS 1DC BUS 1
TTRR11
ATT
RR22
V
ATT
RR33
TR3 DISCONNECTRELAY
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 55 of 90
NonNon-Normal Indications-Normal IndicationsDC Metering PanelDC Metering Panel
Indications of an inoperative Indications of an inoperative TRTR22 are: are:
0 (zero) DC amps.0 (zero) DC amps.
Depends on amount of Depends on amount of voltage demanded from voltage demanded from DC Bus 2. Power to DC DC Bus 2. Power to DC bus 2 is now from TRbus 2 is now from TR11 and and TRTR33 (via the TR (via the TR33 disconnect relay).disconnect relay).
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 56 of 90
737-300/400 Electrical Schematic
V
V
VVV F
V F
A A
DC STANDBY BUSDC STANDBY BUS
EXTERNAL AC BUSEXTERNAL AC BUS
GENERATOR BUS 2GENERATOR BUS 2
MAIN BUS 2MAIN BUS 2TRANSFER BUS 1TRANSFER BUS 1 TRANSFER BUS 2TRANSFER BUS 2MAIN BUS 1MAIN BUS 1GROUND SERVICE BUSGROUND SERVICE BUS
ENGINE DRIVENGENERATOR 1
VF
A
EXTERNAL ACRECEPTACLE
GENERATOR BUS 1GENERATOR BUS 1
VF
GROUNDSERVICESWITCH
VF
A
APU GEN
BUS PROTECTION PANELBUS PROTECTION PANEL
F V
AENGINE DRIVENGENERATOR 2
TRANSFER BUSRELAY 1
22 22
TRANSFER BUSRELAY 2
DC BUS 2DC BUS 2
TTRR22
TR3 DISCONNECTRELAY
TTRR33
11
11 11
BATTERYBUSBATTERYBUS
HOT BATTERYBUSHOT BATTERYBUS
11
22
22
SWITCHED HOT BATTERY BUSSWITCHED HOT BATTERY BUS
STATICSTATICINVERTERINVERTER
AC STANDBY BUSAC STANDBY BUS
11
22
BATTERYBATTERY EXTERNAL DCRECEPTACLE
VBATTERYBATTERYCHARGERCHARGER
22
11
APU STARTBATTERY CHARGER
CUTOUT RELAY
A 22
11PRIMARYPOWERSOURCE
AC POWERAC POWER
DC POWERDC POWER
SECONDARYPOWERSOURCE
LEGEND
V
A
DC BUS 1DC BUS 1
TTRR11
A
V
ATT
RR33
TR3 DISCONNECTRELAY
ATT
RR11
VDC BUS 2DC BUS 2
TTRR22
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 57 of 90
NonNon-Normal Indications-Normal IndicationsDC Metering PanelDC Metering Panel
Indications of an inoperative Indications of an inoperative TRTR33 are: are:
0 (zero) DC amps.0 (zero) DC amps.
0 (zero) DC volts.0 (zero) DC volts.
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 58 of 90
737-300/400 Electrical Schematic
11
V
A
DC BUS 2DC BUS 2
TTRR22
V
A
DC BUS 1DC BUS 1
TTRR11
VVV F
V F
DC STANDBY BUSDC STANDBY BUS
EXTERNAL AC BUSEXTERNAL AC BUS
GENERATOR BUS 2GENERATOR BUS 2
MAIN BUS 2MAIN BUS 2TRANSFER BUS 1TRANSFER BUS 1 TRANSFER BUS 2TRANSFER BUS 2MAIN BUS 1MAIN BUS 1GROUND SERVICE BUSGROUND SERVICE BUS
ENGINE DRIVENGENERATOR 1
VF
A
EXTERNAL ACRECEPTACLE
GENERATOR BUS 1GENERATOR BUS 1
VF
GROUNDSERVICESWITCH
VF
A
APU GEN
BUS PROTECTION PANELBUS PROTECTION PANEL
F V
AENGINE DRIVENGENERATOR 2
TRANSFER BUSRELAY 1
22 22
TRANSFER BUSRELAY 2
TR3 DISCONNECTRELAY
11 11
BATTERYBUSBATTERYBUS
HOT BATTERYBUSHOT BATTERYBUS
11
22
22
SWITCHED HOT BATTERY BUSSWITCHED HOT BATTERY BUS
STATICSTATICINVERTERINVERTER
AC STANDBY BUSAC STANDBY BUS
11
22
BATTERYBATTERY EXTERNAL DCRECEPTACLE
VBATTERYBATTERYCHARGERCHARGER
22
11
APU STARTBATTERY CHARGER
CUTOUT RELAY
A 22
11PRIMARYPOWERSOURCE
AC POWERAC POWER
DC POWERDC POWER
SECONDARYPOWERSOURCE
LEGENDV
ATT
RR33
V
ATT
RR33
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 59 of 90
Normal IndicationsNormal IndicationsAC Metering PanelAC Metering Panel
400 CPS, +/-10 CPS400 CPS, +/-10 CPS
115 volts, +/-5 volts115 volts, +/-5 volts
Normal indications with STBY PWR Normal indications with STBY PWR selected are:selected are:
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 60 of 90
Normal IndicationsNormal IndicationsAC Metering PanelAC Metering Panel
Normal indications with GRD PWR Normal indications with GRD PWR selected are:selected are:
400 CPS, +/-10 CPS400 CPS, +/-10 CPS
115 volts, +/-5 volts115 volts, +/-5 volts
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 61 of 90
Normal IndicationsNormal IndicationsAC Metering PanelAC Metering Panel
Normal indications with GEN 1 Normal indications with GEN 1 selected are:selected are:
400 CPS, +/-10 CPS400 CPS, +/-10 CPS
115 volts, +/-5 volts115 volts, +/-5 volts
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 62 of 90
Normal IndicationsNormal IndicationsAC Metering PanelAC Metering Panel
Normal indications with APU GEN Normal indications with APU GEN selected are:selected are:
400 CPS, +/-10 CPS400 CPS, +/-10 CPS
115 volts, +/-5 volts115 volts, +/-5 volts
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 63 of 90
Normal IndicationsNormal IndicationsAC Metering PanelAC Metering Panel
Normal indications with GEN 2 Normal indications with GEN 2 selected are:selected are:
400 CPS, +/-10 CPS400 CPS, +/-10 CPS
115 volts, +/-5 volts115 volts, +/-5 volts
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 64 of 90
Normal IndicationsNormal IndicationsAC Metering PanelAC Metering Panel
Normal indications with INV Normal indications with INV selected are:selected are:
400 CPS, +/-10 CPS400 CPS, +/-10 CPS
115 volts, +/-5 volts115 volts, +/-5 volts
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 65 of 90
Constant Speed Drive (CSD) PanelConstant Speed Drive (CSD) PanelLow oil pressure < 120 psi Light IlluminationLow oil pressure < 120 psi Light Illumination
High oil temperature 157 degree celcius Light IlluminationHigh oil temperature 157 degree celcius Light Illumination
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 66 of 90
Constant Speed Drive (CSD) PanelConstant Speed Drive (CSD) PanelLOW OIL PRESSURE Light:LOW OIL PRESSURE Light:Illuminated – Illuminated – Generator drive oil pressure is Generator drive oil pressure is below minimum operating limits.below minimum operating limits.< 120 PSI< 120 PSI
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 67 of 90
Constant Speed Drive (CSD) PanelConstant Speed Drive (CSD) PanelHIGH OIL TEMP Light:HIGH OIL TEMP Light:Illuminated – Illuminated – Generator drive oil temperature Generator drive oil temperature exceeds operating limits.exceeds operating limits.= 157 Degree Celcius= 157 Degree Celcius
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 68 of 90
Constant Speed Drive (CSD) PanelConstant Speed Drive (CSD) PanelDISCONNECT Switches:DISCONNECT Switches:(guarded and safetied)(guarded and safetied)Disconnects generator drive. Disconnects generator drive. Generator drive can not be Generator drive can not be reconnected inflight.reconnected inflight.
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 69 of 90
Constant Speed Drive (CSD) PanelConstant Speed Drive (CSD) PanelDRIVE TEMP Switch:DRIVE TEMP Switch:Selects RISE or IN temperature Selects RISE or IN temperature to be displayed on the GEN to be displayed on the GEN DRIVE OIL TEMP indicator.DRIVE OIL TEMP indicator.
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 70 of 90
GEN DRIVE OIL TEMP Indicators:GEN DRIVE OIL TEMP Indicators:Displays the temperature of the Displays the temperature of the oil used in the generator drive.oil used in the generator drive.
IN Scale (inner) –IN Scale (inner) –Displays the temperature of the Displays the temperature of the oil entering the generator drive.oil entering the generator drive.
RISE Scale (outer) –RISE Scale (outer) –Displays the temperature rise Displays the temperature rise within the generator drive.within the generator drive.
Constant Speed Drive (CSD) PanelConstant Speed Drive (CSD) Panel
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 71 of 90
Generator Drive and CSD Oil CoolerGenerator Drive and CSD Oil Cooler
GEN2
GENDRIVE
T
FANAIR
• Higher than normal Higher than normal temperature rise indicates temperature rise indicates excessive generator load or excessive generator load or poor condition of the poor condition of the
generator drive.generator drive.
• Lack of adequate cooling by Lack of adequate cooling by the oil cooler will generally the oil cooler will generally cause the temperature rise to cause the temperature rise to decrease.decrease.
See picture of See picture of engine driven generator engine driven generator
and CSDand CSD
See picture of See picture of CSD oil coolerCSD oil cooler
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 72 of 90
STANDBY POWER OFF Light: STANDBY POWER OFF Light: Illuminated –Illuminated –AC standby bus is not powered.AC standby bus is not powered.
Standby PowerStandby Power
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 73 of 90
Standby PowerStandby PowerSTANDBY POWER Switch:STANDBY POWER Switch:Three-position –Three-position –AUTO (guarded position), OFF and BAT.AUTO (guarded position), OFF and BAT.
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 74 of 90
Standby PowerStandby PowerSTANDBY POWER Switch: STANDBY POWER Switch:
In flight and loss off all AC power:In flight and loss off all AC power:• AC standby bus powered by battery bus via AC standby bus powered by battery bus via
static inverter.static inverter.• DC standby bus powered by battery bus.DC standby bus powered by battery bus.• Fully charged battery will provide 30 min. of Fully charged battery will provide 30 min. of
standby power.standby power.
AUTO (guarded position) –AUTO (guarded position) –In flight or on the ground, with normal power In flight or on the ground, with normal power conditions:conditions:• AC standby bus powered by transfer bus 1.AC standby bus powered by transfer bus 1.• DC standby bus powered by DC bus 1.DC standby bus powered by DC bus 1.
On the ground and loss off all AC power:On the ground and loss off all AC power:• No automatic transfer of power. AC and DC No automatic transfer of power. AC and DC
standby busses are not powered.standby busses are not powered.
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 75 of 90
OFF –OFF –• STANDBY PWR OFF light illuminates.STANDBY PWR OFF light illuminates.• AC standby bus, DC standby bus and AC standby bus, DC standby bus and
static inverter are not powered.static inverter are not powered.
Standby PowerStandby PowerSTANDBY POWER Switch: STANDBY POWER Switch:
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 76 of 90
BAT –BAT –• AC standby bus is powered by AC standby bus is powered by
battery bus via the static inverter.battery bus via the static inverter.• DC standby bus is powered by DC standby bus is powered by
battery bus.battery bus.• The battery bus is powered by hot The battery bus is powered by hot
battery bus, regardless of the battery bus, regardless of the battery (BAT) switch position.battery (BAT) switch position.
Standby PowerStandby PowerSTANDBY POWER Switch: STANDBY POWER Switch:
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 77 of 90
Bus Switching PanelBus Switching Panel
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 78 of 90
Bus Switching PanelBus Switching PanelIlluminated –Illuminated –• Active ground power cord is Active ground power cord is
connected to the aircraft.connected to the aircraft.• Does not indicate the quality of Does not indicate the quality of
the ground power source. To the ground power source. To determine quality, select GRD determine quality, select GRD PWR on the AC metering panel.PWR on the AC metering panel.
• Light remains illuminated as Light remains illuminated as long as an active ground power long as an active ground power cord is connected to the aircraft, cord is connected to the aircraft, even if ground power is not even if ground power is not being utilized as a power source.being utilized as a power source.
GRD POWER AVAILABLE Light:GRD POWER AVAILABLE Light:
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 79 of 90
Bus Switching PanelBus Switching Panel
OFF –OFF –Disconnects ground power from both Disconnects ground power from both generator busses.generator busses.
ON –ON –If momentarily positioned to ON when If momentarily positioned to ON when ground power is available:ground power is available:• removes previously connected removes previously connected
power from the generator busses.power from the generator busses.• connects ground power to connects ground power to
generator busses, if ground power generator busses, if ground power quality is correct.quality is correct.
• switches the ground service bus to switches the ground service bus to generator bus 1.generator bus 1.
• deactivates the ground service deactivates the ground service switch.switch.
GRD PWR Switch:GRD PWR Switch:(spring-loaded to center)(spring-loaded to center)
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 80 of 90
Bus Switching PanelBus Switching PanelIndicates respective engine driven Indicates respective engine driven generator load in amps.generator load in amps.
AC AMPS (AC Ammeter):AC AMPS (AC Ammeter):
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 81 of 90
Bus Switching PanelBus Switching PanelAUTO (guarded position) –AUTO (guarded position) –Upon failure of one generator bus, Upon failure of one generator bus, respective transfer bus seeks power from respective transfer bus seeks power from active (opposite) generator bus.active (opposite) generator bus.
OFF –OFF –• Prevents transfer busses from seeking Prevents transfer busses from seeking
opposite generator bus.opposite generator bus.• Prevents battery charger from seeking Prevents battery charger from seeking
alternate power source (main bus 2).alternate power source (main bus 2).• Opens TROpens TR33 disconnect relay. disconnect relay.
NOTE: The important item to remember is NOTE: The important item to remember is that whenever the BUS TRANSFER switch is that whenever the BUS TRANSFER switch is positioned to OFF, the electrical system is positioned to OFF, the electrical system is now “split.” The left and right side of the now “split.” The left and right side of the electrical system are now independent. electrical system are now independent. However, this will have However, this will have notnot prevent the AC prevent the AC and DC standby busses from seeking their and DC standby busses from seeking their alternate power source (battery bus).alternate power source (battery bus).
BUS TRANSFER Switch:BUS TRANSFER Switch:
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 82 of 90
Bus Switching PanelBus Switching PanelIlluminated –Illuminated –Respective transfer bus is inactive.Respective transfer bus is inactive.
TRANSFER BUS OFF Lights:TRANSFER BUS OFF Lights:
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 83 of 90
737-300/400 Electrical Schematic
V
V
VVV F
V F
A A
DC STANDBY BUSDC STANDBY BUS
EXTERNAL AC BUSEXTERNAL AC BUS
GENERATOR BUS 2GENERATOR BUS 2
MAIN BUS 2MAIN BUS 2TRANSFER BUS 1TRANSFER BUS 1 TRANSFER BUS 2TRANSFER BUS 2MAIN BUS 1MAIN BUS 1GROUND SERVICE BUSGROUND SERVICE BUS
ENGINE DRIVENGENERATOR 1
VF
A
EXTERNAL ACRECEPTACLE
GENERATOR BUS 1GENERATOR BUS 1
VF
GROUNDSERVICESWITCH
VF
A
APU GEN
BUS PROTECTION PANELBUS PROTECTION PANEL
F V
AENGINE DRIVENGENERATOR 2
TRANSFER BUSRELAY 1
22 22
TRANSFER BUSRELAY 2
DC BUS 2DC BUS 2
TTRR22
TR3 DISCONNECTRELAY
TTRR33
11
11 11
BATTERYBUSBATTERYBUS
HOT BATTERYBUSHOT BATTERYBUS
11
22
22
SWITCHED HOT BATTERY BUSSWITCHED HOT BATTERY BUS
STATICSTATICINVERTERINVERTER
AC STANDBY BUSAC STANDBY BUS
11
22
BATTERYBATTERY EXTERNAL DCRECEPTACLE
VBATTERYBATTERYCHARGERCHARGER
22
11
APU STARTBATTERY CHARGER
CUTOUT RELAY
A 22
11PRIMARYPOWERSOURCE
AC POWERAC POWER
DC POWERDC POWER
SECONDARYPOWERSOURCE
LEGEND
V
A
DC BUS 1DC BUS 1
TTRR11
TRANSFER BUS 1TRANSFER BUS 1 TRANSFER BUS 2TRANSFER BUS 2
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 84 of 90
Bus Switching PanelBus Switching PanelIlluminated –Illuminated –Respective generator bus is inactive.Respective generator bus is inactive.
BUS OFF Lights:BUS OFF Lights:
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 85 of 90
737-300/400 Electrical Schematic
V
V
VVV F
V F
A A
DC STANDBY BUSDC STANDBY BUS
EXTERNAL AC BUSEXTERNAL AC BUS
GENERATOR BUS 2GENERATOR BUS 2
MAIN BUS 2MAIN BUS 2TRANSFER BUS 1TRANSFER BUS 1 TRANSFER BUS 2TRANSFER BUS 2MAIN BUS 1MAIN BUS 1GROUND SERVICE BUSGROUND SERVICE BUS
ENGINE DRIVENGENERATOR 1
VF
A
EXTERNAL ACRECEPTACLE
GENERATOR BUS 1GENERATOR BUS 1
VF
GROUNDSERVICESWITCH
VF
A
APU GEN
BUS PROTECTION PANELBUS PROTECTION PANEL
F V
AENGINE DRIVENGENERATOR 2
TRANSFER BUSRELAY 1
22 22
TRANSFER BUSRELAY 2
DC BUS 2DC BUS 2
TTRR22
TR3 DISCONNECTRELAY
TTRR33
11
11 11
BATTERYBUSBATTERYBUS
HOT BATTERYBUSHOT BATTERYBUS
11
22
22
SWITCHED HOT BATTERY BUSSWITCHED HOT BATTERY BUS
STATICSTATICINVERTERINVERTER
AC STANDBY BUSAC STANDBY BUS
11
22
BATTERYBATTERY EXTERNAL DCRECEPTACLE
VBATTERYBATTERYCHARGERCHARGER
22
11
APU STARTBATTERY CHARGER
CUTOUT RELAY
A 22
11PRIMARYPOWERSOURCE
AC POWERAC POWER
DC POWERDC POWER
SECONDARYPOWERSOURCE
LEGEND
V
A
DC BUS 1DC BUS 1
TTRR11
GENERATOR BUS 2GENERATOR BUS 2GENERATOR BUS 1GENERATOR BUS 1
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 86 of 90
Bus Switching PanelBus Switching PanelIlluminated –Illuminated –Respective engine driven generator Respective engine driven generator is not supplying power to the related is not supplying power to the related generator bus.generator bus.
GEN OFF BUS Lights:GEN OFF BUS Lights:
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 87 of 90
737-300/400 Electrical Schematic
V
V
VVV F
V F
A A
DC STANDBY BUSDC STANDBY BUS
EXTERNAL AC BUSEXTERNAL AC BUS
GENERATOR BUS 2GENERATOR BUS 2
MAIN BUS 2MAIN BUS 2TRANSFER BUS 1TRANSFER BUS 1 TRANSFER BUS 2TRANSFER BUS 2MAIN BUS 1MAIN BUS 1GROUND SERVICE BUSGROUND SERVICE BUS
ENGINE DRIVENGENERATOR 1
VF
A
EXTERNAL ACRECEPTACLE
GENERATOR BUS 1GENERATOR BUS 1
VF
GROUNDSERVICESWITCH
VF
A
APU GEN
BUS PROTECTION PANELBUS PROTECTION PANEL
F V
AENGINE DRIVENGENERATOR 2
TRANSFER BUSRELAY 1
22 22
TRANSFER BUSRELAY 2
DC BUS 2DC BUS 2
TTRR22
TR3 DISCONNECTRELAY
TTRR33
11
11 11
BATTERYBUSBATTERYBUS
HOT BATTERYBUSHOT BATTERYBUS
11
22
22
SWITCHED HOT BATTERY BUSSWITCHED HOT BATTERY BUS
STATICSTATICINVERTERINVERTER
AC STANDBY BUSAC STANDBY BUS
11
22
BATTERYBATTERY EXTERNAL DCRECEPTACLE
VBATTERYBATTERYCHARGERCHARGER
22
11
APU STARTBATTERY CHARGER
CUTOUT RELAY
A 22
11PRIMARYPOWERSOURCE
AC POWERAC POWER
DC POWERDC POWER
SECONDARYPOWERSOURCE
LEGEND
V
A
DC BUS 1DC BUS 1
TTRR11
ENGINE DRIVENGENERATOR 1
VF
A
F V
AENGINE DRIVENGENERATOR 2
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 88 of 90
Bus Switching PanelBus Switching PanelIlluminated –Illuminated –APU generator is at 95% of its APU generator is at 95% of its governed speed and is currently not governed speed and is currently not supplying power to generator bus 1 supplying power to generator bus 1 or generator bus 2.or generator bus 2.
APU GEN OFF BUS Light:APU GEN OFF BUS Light:
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 89 of 90
Bus Switching PanelBus Switching Panel
ON –ON –Connects APU generator to respective Connects APU generator to respective generator bus if quality of APU generator bus if quality of APU generator power is correct.generator power is correct.
APU GEN Switches:APU GEN Switches:(spring-loaded to center)(spring-loaded to center)
OFF –OFF –Disconnects APU generator from Disconnects APU generator from the respective generator bus.the respective generator bus.
PT. METRO BATAVIAPT. METRO BATAVIADirectorate of OperationalDirectorate of Operational Slide 90 of 90
Bus Switching PanelBus Switching Panel
ON –ON –Connects engine driven generator to Connects engine driven generator to respective generator bus if quality of respective generator bus if quality of engine driven generator power is engine driven generator power is correct.correct.
GEN Switches (1 and 2):GEN Switches (1 and 2):(spring-loaded to center)(spring-loaded to center)
OFF –OFF –Disconnects engine driven generator Disconnects engine driven generator from the respective generator bus.from the respective generator bus.
