Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 350
ves the most care-ful attention. It was pointed out on page 249 that a transformer intended togive an accurately fixed ratio between primary and secondary cur-rents must be so designed as to have a very small magnetizingcurrent. This is accomplished by using a very low magnetic fluxdensity in the… … Portable Curront Transformer ShowingPrimary Windiug Terminals 311 298 ALTERNATING-CURRENT MACHINERY The series transformer is mostly employed for insulating anammeter, a current relay, or series coil of a wattmeter or watt-hourmeter from a high voltage circuit, or for reducing the line currentto a…
Electrical engineering
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