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Experience at NASA/Ames Research Center Since its establishment in 1978, ArcSine Engineering (formerly Electrical and Control System Engineering) has participated in many projects at NASA-Ames Research Center in Mountain View in the areas of technology assessments, studies, design, construction management, startup, and testing. We have worked on wind tunnel drive systems, model supports, flight simulators, Arc Jet facilities, and power distribution systems up to 115,000 volts. Our staff is highly qualified in electrical engineering and control system engineering. We have extensive experience with medium-voltage switchgear and protective devices, programmable systems, feedback control systems, and variable-speed drives both solid-state and motor-generator systems. ArcSine is highly qualified in the investigation of facility power problems, and in providing recommendations and designs for corrective measures. Problems frequently encountered include overloading; phase imbalances; harmonics and resonances; voltage drop; ground currents; abnormal neutral and ground voltages; and sags, spikes, and other anomalies. Problem sources have multiplied in recent years with the widespread use of nonlinear loads such as energy-efficient lighting, computers and other electronic equipment with switching power supplies, and solid-state adjustable-speed drive systems. ArcSine is expert at managing documentation. The firm has a consistent record of smoothly integrating new and revised documentation into existing documentation in compliance with rigorous Government requirements. We have worked closely with Engineering Document Control (EDC), and we can provide drawings and drawing files in AUTOCAD format, which is presently used by EDC. The firm is skilled at preparing design and as-built drawings to various levels of detail as required by the project, as well as operation and maintenance manuals, maintenance and rehabilitation plans, parts lists, and training documentation. ArcSine is currently working at Ames, where we have a permanent onsite office (phone 650/604-5470). We communicate with Ames from our home office by telephone, FAX, and internet.
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