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test 2 review
test 2 review

... If you are given the primary and secondary voltages, VA rating, frequency, number of primary turns, lamination specifications, number of laminations, voltage regulation, and efficiency: How do you find the peak flux density? ...
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rack mounting power supplies - dual tracking outputs
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... Connected in series/parallel to prevent significant changes in current and voltage in the circuit Voltmeter is attached in parallel and have high resistance o When voltage is constant, V=IR – a high resistance will reduce current passing through o Current divides between paths – low current reduces ...
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... make it impractical to remain within specific limits for all operating situations. However, PacifiCorp makes every reasonable effort to maintain voltage balance to meet the needs of typical customer equipment and the most efficient utilization of the distribution system. ...
featureS 
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... Measures and records power systems (kW, VA, kVAR) • Energy metering (kAh, VARh, kWh) • Displays total harmonic distortion (THD-F and THD-R) for voltage and current • Displays individual harmonic values and % for volts and amps through the 50th harmonic • The Max and Min RMS measurements are calc ...
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Three-phase electric power



Three-phase electric power is a common method of alternating-current electric power generation, transmission, and distribution. It is a type of polyphase system and is the most common method used by electrical grids worldwide to transfer power. It is also used to power large motors and other heavy loads. A three-phase system is usually more economical than an equivalent single-phase or two-phase system at the same line to ground voltage because it uses less conductor material to transmit electrical power.The three-phase system was independently invented by Galileo Ferraris, Mikhail Dolivo-Dobrovolsky, Jonas Wenström and Nikola Tesla in the late 1880s.
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