Chapter 28: Copper Efficiency Of Systems
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Source Metadata
Section titled “Source Metadata”| Field | Value |
|---|---|
| Source | Theory and Calculation of Alternating Current Phenomena |
| Year | 1897 |
| Section ID | theory-calculation-alternating-current-phenomena-1897-chapter-28 |
| Location | lines 26584-27052 |
| Status | candidate |
| Word Count | 2695 |
| Equation Candidates In Section | 0 |
| Figure Candidates In Section | 0 |
| Quote Candidates In Section | 0 |
Opening Source Excerpt
Section titled “Opening Source Excerpt”CHAPTER XXVIII. COPPER EFFICIENCY OF SYSTEMS. 259. In electric power transmission and distribution^ wherever the place of consumption of the electric energy is distant from the place of production, the conductors which transfer the current are a sufficiently large item to require consideration, when deciding which system and what potential is to be used. In ger^eral, in transmitting a given amount of power at a given loss over a given distance, other things being equal, the amount of copper required in the conductors is inversely proportional to the square of the potential used. Since the total power transmitted is proportional to the product of current and E.M.F., at a given power, the current will vary inversely proportional to the E.M.F., and therefore,, since the loss is proportional to the product of current- square and resistance,Source-Located Theme Snippets
Section titled “Source-Located Theme Snippets”Alternating current
Section titled “Alternating current”CHAPTER XXVIII. COPPER EFFICIENCY OF SYSTEMS. 259. In electric power transmission and distribution^ wherever the place of consumption of the electric energy is distant from the place of production, the conductors which transfer the current are a sufficiently large item to require consideration, when deciding which system and what potential is to be used. In ger^eral, in transmitting a given ...Complex quantities
Section titled “Complex quantities”... systems, as two-wire single-phase, single-phase three-wire, three-phase and quar- ter-phase, as basis of comparison equality of the potential is used. Some systems, however, as for instance, the Edison three-wire system, or the inverted three-phase system, have I § 260J COPPER EFFICIEXCY OF SYSTEMS. 381 different potentials in the different circuits constituting the system, and thus the comparison can be made either — 1st. On the basis of equality of the maximum potential difference in the system ; or 2d. On the basis of the minimum poten ...Dielectricity / capacity
Section titled “Dielectricity / capacity”... maximum potential only, but where the limitation of potential depends upon the problem of insulating the conductors against disruptive discharge, the proper comparison is on the basis of equality of the maximum difference of potential in the system ; that is, equal maximum dielectric strain on the insulation. The same consideration holds in moderate potential power circuits, in considering the danger to life from wires or high differences of potential. Thus the comparison of different systems of long-dis- tance transmission at high potential or power ...Radiation / light
Section titled “Radiation / light”... comparison of different systems of long-dis- tance transmission at high potential or power distribution for motors is to be made on the basis of equality of the maximum difference of potential existing in the system. The comparison of low potential distribution circuits for lighting on the basis of equality of the minimum difference of potential between any pair of wires connected to the receiving apparatus. 260. 1st. Comparison on the basis of equality of the minimum difference of potential^ in low potential lighting circuits : 382 AL TEKXA TIN ...Chapter-Local Concept Hits
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Modern Engineering Reading Prompts
Section titled “Modern Engineering Reading Prompts”- Alternating current: Compare Steinmetz’s AC language with modern sinusoidal steady-state analysis, RMS quantities, phase, and phasor notation.
- Complex quantities: Track how Steinmetz preserves geometric rotation and quadrature while translating the same operation into symbolic form.
- Dielectricity / capacity: Check whether the passage treats capacity, condensers, displacement, or dielectric stress as field storage rather than only circuit algebra.
- Radiation / light: Compare the chapter’s radiation vocabulary with modern electromagnetic radiation, spectral frequency, wavelength, absorption, and illumination engineering.
Ether-Field Interpretive Boundary
Section titled “Ether-Field Interpretive Boundary”- Dielectricity / capacity: A Wheeler-style reading may emphasize dielectric compression, field stress, and stored potential, but this page treats that as interpretation unless Steinmetz explicitly says it.
- Radiation / light: Radiation and wave language can invite ether-field comparison, but source wording, modern radiation theory, and speculative synthesis must stay separated.
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