This is advanced skilled technical work in the inspection, repair, installation and maintenance of traction power equipment.

Employees in this class are responsible for inspecting, repairing, troubleshooting, installing and maintaining traction power equipment on an assigned shift in a public transportation system. Work involves the advanced application of the principles and techniques of electrical and electronic repairs and adjustments to traction power equipment including high-voltage AC and DC cables, high-voltage transformers, traction power rectifiers and control wiring. Employees exercise some independent judgment in the varied technical phases of repair, installation, modification and adjustment. Supervision is received from a technical superior who reviews work in progress and upon completion for satisfactory performance of equipment installed, repaired or maintained.

ILLUSTRATIVE TASKS

Performs preventive and routine maintenance tasks on traction power equipment including 15KV AC switchgear, 700 volt DC switchgear, and rectification equipment.

Performs emergency and corrective maintenance as required to maintain safety and reliability of equipment.

Inspects, tests and repairs or replaces circuit breakers and/or breaker contacts.

Inspects traction power equipment for loose, broken or worn hardware; tests, repairs or replaces as necessary.

Inspects wet cell batteries for improper output or other malfunctions; tests, repairs or replaces as necessary.

Uses electronic test equipment, digital and analog multimeters in order to identify specific problem areas and institute corrective action.

Troubleshoots basic electrical circuits.

Inspects, maintains and repairs annunciator system.

Inspects, maintains and repairs 15KV transformers and buss ducts.

Maintains work areas in a neat and safe manner.

Observes established safety procedures and practices applicable to the electrical trade and to work in a public transportation system.

Reads and interprets various blueprints and schematic drawings.

Performs standby duty for mainline peak revenue service support.

Performs related work as required.

KNOWLEDGES, ABILITIES, AND SKILLS

Considerable knowledge of the principles and theories of electricity and electronics as applied to traction power equipment.

Considerable knowledge of the mechanical and electrical functioning of traction power equipment.

Considerable knowledge of the standard practices, methods, tools and materials of the electronic trade.

Considerable knowledge of the occupational hazards and safety precautions of the electrical trade and of work in a public transportation system.

Knowledge of precision electronic and electrical test equipment.

Knowledge of utility power distribution systems.

Ability to inspect, install, repair and maintain traction power equipment.

Ability to diagnose and repair defects in high-voltage cables, high-voltage transformers and other traction power equipment.

Ability to work a variety of hours and emergency shifts as required.

Ability to follow verbal and written instructions.

Ability to read, interpret and understand blueprints and schematic drawings.

Skill in the diagnosis of electrical and mechanical malfunctions.

REV 8-94