Traction Power Program Basics

Traction Power Engineering Program Summary

Sub Program & Project Example Operational Function

1. Substation Replacement Replace 28 substations

Converts 34.5KV AC to 1000v DC power

2. 34.5KV AC Cable Replacement Replace PIPE cable with EPR cable A Line and M Line

Cables distribute the AC power to the substations

3. Traction Power Controls MPR, Rectifier Rehab, Blocking

Provide safety protection circuits and OCC controls and alarms

4. 3rd Rail System Improvements 3rd Rail Replacement K & A Lines

Delivers power to the train

5. Gap Breaker Station Replacement- 14 each

Provides power redundancy to 3rd rail sections

6. Unplanned Renovations – Transformer Replacement, Disconnect

Switches

Emergency repair contracts to transition to reactive projects

Bulk Supply Station 4 each

Switching Station 8 each

Traction Power Substation 62 each

Gap Breaker Station 48 each

34.5KV AC Cable 210 miles

3rd Rail 240 miles

Power Transformers 116 each

Traction Power Simplified Asset Layout How We Deliver Power from PG&E to Trains

Train

115KV

34.5KV

1KV

Fire Damage (DC Brkrs)

Power Transformer

Control Transformer

34.5KV Cable

Legend

Nov 13, 2015

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Renovations