Apparatus Section 13: Synchronous Converters: Direct-current Converter
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Source Metadata
Section titled “Source Metadata”| Field | Value |
|---|---|
| Source | Theoretical Elements of Electrical Engineering |
| Year | 1915 |
| Section ID | theoretical-elements-electrical-engineering-section-91 |
| Location | lines 16065-16540 |
| Status | candidate |
| Word Count | 1811 |
| Equation Candidates In Section | 0 |
| Figure Candidates In Section | 0 |
| Quote Candidates In Section | 0 |
Opening Source Excerpt
Section titled “Opening Source Excerpt”Xin. Direct-current Converter 105. If n equidistant pairs of diametrically opposite points of a commutating machine armature are connected to the ends of n compensators or autotransformers, that is, electric circuits interlinked with a magnetic circuit, and the centers of these auto- transformers connected with each other to a neutral point as shown diagrammatically in Fig. 140 for n = 3, this neutral is equidis- tant in potential from the two sets of commutator brushes, and such a machine can be used as continuous current converter, to SYNCHRONOUS CONVERTERS 263 transform in the ratio of potentials 1 :2 or 2 : 1 or 1 : 1, in the latter case transforming power from one side of a three- wire system to the other side. Obviously either the n autotransformers can be stationary and connected toSource-Located Theme Snippets
Section titled “Source-Located Theme Snippets”Waves / transmission lines
Section titled “Waves / transmission lines”... iven as generator. I I. Ill jiHojifljybJU yyyyyyyyyyyyyyywyy jyyyyy a'"o"o a^aza3 C B J1 a"a"a 1J. 2i FIG. 142. — Development of a direct-current converter. 106. While the currents in the armature coils are more or less sine waves in the alternator, rectangular reversed currents in the direct-current generator or motor, and distorted triple-fre- quency currents in the synchronous converter, the currents in the armature coils of the direct-current converter are approximatel ...Magnetism
Section titled “Magnetism”Xin. Direct-current Converter 105. If n equidistant pairs of diametrically opposite points of a commutating machine armature are connected to the ends of n compensators or autotransformers, that is, electric circuits interlinked with a magnetic circuit, and the centers of these auto- transformers connected with each other to a neutral point as shown diagrammatically in Fig. 140 for n = 3, this neutral is equidis- tant in potential from the two sets of commutator brushes, and suc ...Field language
Section titled “Field language”... rent at the brushes is the same in the converter as in the generator, the only advantage of the former being the better commutation due to the absence of armature reaction. The limit of output set by armature reaction and correspond- ing field excitation in a motor or generator obviously does not exist at all in a converter. It follows herefrom that a direct- current motor or generator does not give the most advantageous direct-current converter, but that in the direct-current co ...Radiation / light
Section titled “Radiation / light”... , rectangular reversed currents in the direct-current generator or motor, and distorted triple-fre- quency currents in the synchronous converter, the currents in the armature coils of the direct-current converter are approximately triangular double-frequency waves. Let Fig. 142 represent a development of a direct-current con- verter with brushes BI and B2, and C one autotransformer re- ceiving current 2 i from the neutral. Consider first an armature coil ai adjacent and behind (in the directio ...Chapter-Local Concept Hits
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