Historical Electrical Control Panel Diagram - Industrial Power Systems #3757517 (License: Personal Use)

This black-and-white technical illustration depicts a robust industrial control panel housed in an angle iron frame with natural black slate panels. Key components include voltmeters, an ammeter, a synchroscope, automatic voltage regulator, totalizing watthour meter, oil switches, and an auto-starter-each clearly labeled and arranged for operational efficiency. The design reflects early 20th-century engineering standards for power station or factory electrical management.

Commonly used in historical engineering archives, museum exhibits, or educational resources about early electrical infrastructure; serves users researching vintage power systems, industrial history, or electrical engineering evolution.