"Nerve center" of the General Electric Company's new Switchgear Development Laboratory here is this master control benchboard. From this board, fronting on the facility's five test cells and high-voltage test yard, engineers can control the two huge generators - capable of producing 200,000 amperes of short-circuit current - as well as the apparatus under test. Above, lab employees study oscillograph records of a circuit breaker's performance, while engineer (background) adjust control prior to another test.

General Electric Company1952-03-31