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auxiliary power system

INTRODUCTION

The auxiliary power system of the AC-traction, 4400 HP, Evolution® Series locomotive provides the electrical power that is required to operate all of the locomotive systems that we have learned about in the previous modules of this class. It also provides power for some equipment that will be described in this module for the first time.

This module will introduce you to the auxiliary power system components and circuits. These include the auxiliary alternator, alternator excitation circuits, the battery charging circuit, and the auxiliary motor supply circuits.

Sections

Section 1: Auxiliary alternator Section 2: Alternator excitation circuits Section 3: Battery charging circuit Section 4: Auxiliary motor supply – cycle skipper circuits Section 5: Auxiliary motor supply – direct drive circuits Section 6: Auxiliary motor supply – contactor controlled circuits

Objectives

By the end of this module, you should:

• Recognize the auxiliary alternator and understand how it works • Know the components of the traction and auxiliary alternator excitation circuits and understand how they operate • Know the components of the battery charger circuit and understand how they operate • Know the components of the auxiliary motor supply circuits and understand how they operate

© 2006 General Electric Company. All rights reserved. The information contained in this document is the property of General Electric Company and is disclosed in confidence. This document is intended for use by GE customers solely for the purpose of training its employees and representatives in the use of

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