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Instrumentation and Measurement Techniques
Instrumentation and Measurement Techniques

... is a device that converts ac electrical energy at one voltage level to ac electrical energy at another voltage level, but with the same frequency. In general, transformers operate on the same principles as generators and motors, and are usually studied together with generators and motors. These 3 ty ...
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Test Procedure for the NCP5603 Evaluation Board  10.5.2004
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7 With the protective cover closed, it is not possible to set the

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DC-DC Converter for Charging Electric Vehicle

... Efficient and reliable power transfer ◦ Reduce losses ◦ Improve voltage control ◦ Intuitive design for automatic shut off ...
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Amtrak's 25 Hz traction power system



Amtrak's 25 Hz Traction Power System is a traction power grid operated by Amtrak along the southern portion of its Northeast Corridor (NEC): the 225 route miles (362 km) between Washington, D.C. and New York City and the 104 route miles (167 km) between Philadelphia and Harrisburg, Pennsylvania. The Pennsylvania Railroad constructed it between 1915 and 1938. Amtrak inherited the system from Penn Central, the successor to Pennsylvania Railroad, in 1976 along with the Northeast Corridor. In addition to serving the NEC, the system provides power to New Jersey Transit Rail Operations (NJT), the Southeastern Pennsylvania Transportation Authority (SEPTA) and the Maryland Area Regional Commuter Train (MARC). Only about half of the system's electrical capacity is used by Amtrak. The remainder is sold to the commuter railroads who operate their trains along the corridor.
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