﻿GET_GEVOMechL2_09_01_01_07 - ANIMATION Screen
1
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The TA’s field windings are excited by the Traction Alternator Field Controller (TAC) and produce a magnetic field of force.

2
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As the engine’s mechanical energy turns the rotor, electrical energy is induced into the TA stator windings.

3
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These windings produce a 3-phase AC voltage output that is directly proportional to the field excitation current for a given engine RPM.

4
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The induced 3-phase AC voltage is then fed to rectifier modules and converted to DC power.

5
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On an ES44DC locomotive, this DC power is directly distributed to the six DC traction motors.

6
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On an ES44AC locomotive, the rectified DC power is inverted back into 3-phase AC power by the traction inverters and then distributed to the six AC traction motors.

7
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The traction motors convert the electrical power back into mechanical power to pull a train.
