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Transformer Fire in an Electric Power Plant in Los Angeles

A fire occurred at the Haynes Station of the Los Angeles Department of Water and Power. The fire started in an output transformer for Unit 1 (230 MW). APTECH was retained to evaluate the effects of the fire on structural components, including a gantry crane that was situated immediately above the fire. Mechanical property characterization tests (hardness, tensile, and Charpy V-notch tests) and temperature estimates (from response of paint and tempering of high strength fasteners) indicated that these components were not adversely affected by the fire. However, our examinations revealed unexpected degradation of the gantry crane from corrosion of its internal structure.

Satish Almaula		Plant failure and root cause analysis; process and design engineering analysis; process technology development and testing; plant engineering, operations, maintenance and safety management; plant and process control system management.

Kimble Clark, Ph.D.		Failure analysis, heat transfer & thermodynamics, process plant equipment failures & explosions, fuel science, combustion, industrial fires and explosions.

Richard Schreiber, P.E.		Machinery and mechanical device failure analysis, mechanical testing, combustion and heat transfer, industrial fires and explosions, gas appliances.

Eric Sullivan, P.E.		Metallurgy, welding, failure analysis, fire and explosion investigations, equipment, piping.

Michael Cronin, P.E.		Stress analysis, design evaluation, engineering mechanics