AC Symbolic Geometry
Visual topic gallery
AC Symbolic Geometry
Visual routes through vectors, rectangular components, complex quantities, j rotation, impedance, reactance, admittance, and phasor thinking.
original crops
scan images routed into this topicmodern guide diagrams
reconstructions, not historical evidencefigure candidates
OCR/PDF-text leads needing crop reviewformula candidates
math leads needing transcription reviewLayer rule: original crops, figure candidates, modern redraws, and formula candidates are separated. Use this page to browse visually, then verify in the linked source text and workbench.
Source Routes
Section titled “Source Routes”Original Scan Crops
Section titled “Original Scan Crops”
Theory and Calculation of Alternating Current Phenomena
Theory and Calculation of Alternating Current Phenomena, Chapter V, printed page 30, PDF page 58; Fig. 21

Theory and Calculation of Alternating Current Phenomena
Theory and Calculation of Alternating Current Phenomena, Chapter V, printed page 31, PDF page 59; Fig. 22

Theory and Calculation of Alternating Current Phenomena
Theory and Calculation of Alternating Current Phenomena, Chapter V, printed page 32, PDF page 60; Fig. 23
Modern Guide Diagrams
Section titled “Modern Guide Diagrams”Modern reading aid for induction-machine field language in AC and Theoretical Elements sources.
symbolic-method, magnetism, phase, induction-motor
Modern reading aid for line capacity, inductance, leakage, waves, and transients.
distributed-constants, capacity, inductance, waves
Modern reading aid for conductance, susceptance, and reciprocal impedance.
admittance, conductance, susceptance, symbolic-method
Modern reading aid for wave-shape analysis and higher harmonics.
harmonics, wave-shape, fourier-analysis
Modern reading aid for the Steinmetz law and magnetic energy loss per cycle.
hysteresis, magnetic-loss, effective-resistance
Modern reading aid for the Commonwealth Edison report and system-stability mathematics.
synchronizing-power, power-limiting-reactors, reactance
Modern reading aid for number, direction, and symbolic calculation in Engineering Mathematics.
complex-quantities, number, symbolic-method
Modern redraw sheet for rectangular components, resultant addition, and quarter-period j rotation.
symbolic-method, complex-quantities, phasor, operator-j
Modern reading aid for vector and complex-number representation of alternating quantities.
symbolic-method, complex-quantities, phase, phasor
Modern guide for magnetic lag, loop area, and energy loss per cycle.
hysteresis, magnetism, magnetic-loss, effective-resistance
Modern guide for resistance, reactance, impedance, phase angle, and symbolic quantities.
impedance, reactance, power-factor, symbolic-method
Modern reading aid for station sections, power-limiting reactors, tie cables, and synchronism.
power-limiting-reactors, synchronizing-power, reactance, power-systems
Candidate Figure Leads
Section titled “Candidate Figure Leads”| Candidate | Caption lead | Source section | Routes |
|---|---|---|---|
elementary-lectures-electric-discharges-waves-impulses-fig-025Fig. 25 | frequency, and as the result an increase of voltage and a distor- tion of the quadrature phase occurs, as shown in the oscillogram Fig. 25. Various momentary short-circuit phenomena are illustrated by the os… | Elementary Lectures on Electric Discharges, Waves and Impulses, and Other Transients Lecture 4: Single-Energy Transients In Alternating Current Circuits | source research review |
engineering-mathematics-fig-005Fig. 5 | ■e- FiG. 5. tance in the direction rotated 90 deg. from +2, or in quadrature | Engineering Mathematics: A Series of Lectures Delivered at Union College Chapter 1: The General Number | source research review |
engineering-mathematics-fig-006Fig. 6 | +3 Fig. 6. For instance, in problems dealing with plain geometry, as in | Engineering Mathematics: A Series of Lectures Delivered at Union College Chapter 1: The General Number | source research review |
engineering-mathematics-fig-010Fig. 10 | There are therefore n different valuesof av^ + 1, which lie equidistant on a circle with radius 1, as shown for n = 9 in Fig. 10. 14. In the operation of addition, a + 6 = c, the problem is, a and 6 being gi… | Engineering Mathematics: A Series of Lectures Delivered at Union College Chapter 1: The General Number | source research review |
engineering-mathematics-fig-020Fig. 20 | d) — I — 1 0 (D — I — I — I — I — I — I — I — © — I — • — I O A B C Fig. 20. horses, multiplication has no physical meaning. If they repre- sent feet, the product of multiphcation has a physical meaning, | Engineering Mathematics: A Series of Lectures Delivered at Union College Chapter 1: The General Number | source research review |
engineering-mathematics-fig-046Fig. 46 | of the exactness of the results resulting from the limited num- FiG. 46. ber of numerical values of i, on which the calculation is based. | Engineering Mathematics: A Series of Lectures Delivered at Union College Chapter 3: Trigonometric Series | source research review |
engineering-mathematics-fig-047Fig. 47 | able to supply the charging current of the line, due to the Fig. 47. wave shape distortion, more than two generators are required. | Engineering Mathematics: A Series of Lectures Delivered at Union College Chapter 3: Trigonometric Series | source research review |
engineering-mathematics-fig-048Fig. 48 | purposes, as short-distance distribution. Fig. 48. In Figs. 47 and 48 are plotted the voltage wave and the current wave, from equations (9) and (14) repsectively, and | Engineering Mathematics: A Series of Lectures Delivered at Union College Chapter 3: Trigonometric Series | source research review |
engineering-mathematics-fig-049Fig. 49 | As seen from Fig. 49, the fundamental wave has practically Fig. 49. vanished, and the voltage wave is the seventh harmonic, modi- | Engineering Mathematics: A Series of Lectures Delivered at Union College Chapter 3: Trigonometric Series | source research review |
engineering-mathematics-fig-057Fig. 57 | ?ro (62) Fig. 57. Substituting (61) into (62) gives, | Engineering Mathematics: A Series of Lectures Delivered at Union College Chapter 3: Trigonometric Series | source research review |
theory-calculation-alternating-current-phenomena-fig-006Fig. 6 | maximum variation of the sine is equal to the variation of the Fig. 6. Fig. 7. | Theory and Calculation of Alternating Current Phenomena Chapter 2: Instantaneous Values And Integral Values | source research review |
theory-calculation-alternating-current-phenomena-fig-007Fig. 7 | Fig. 6. Fig. 7. corresponding arc, and consequently the maximum variation of | Theory and Calculation of Alternating Current Phenomena Chapter 2: Instantaneous Values And Integral Values | source research review |
theory-calculation-alternating-current-phenomena-fig-010Fig. 10 | 21 Fig. 10. phase angle — /3’ = — (a’ — ??]) = 10 A, and the equations of | Theory and Calculation of Alternating Current Phenomena Chapter 4: Vector Representation | source research review |
theory-calculation-alternating-current-phenomena-fig-016Fig. 16 | ^E, Fig. 16. Fig. 17. | Theory and Calculation of Alternating Current Phenomena Chapter 4: Vector Representation | source research review |
theory-calculation-alternating-current-phenomena-fig-017Fig. 17 | Fig. 16. Fig. 17. the current by the angle, Q. The voltage consumed by the resist- | Theory and Calculation of Alternating Current Phenomena Chapter 4: Vector Representation | source research review |
theory-calculation-alternating-current-phenomena-fig-019Fig. 19 | Ei-< «; Fig. 19. The primary impressed e.m.f., Ep, must thus consist of the three components OEi, OEr, and OE^, and is, therefore, their | Theory and Calculation of Alternating Current Phenomena Chapter 4: Vector Representation | source research review |
theory-calculation-alternating-current-phenomena-fig-024Fig. 24 | 33 Fig. 24. polar coordinates by a vector of opposite direction, and denoted | Theory and Calculation of Alternating Current Phenomena Chapter 5: Symbolic Method | source research review |
theory-calculation-alternating-current-phenomena-fig-025Fig. 25 | ,,U— — L Fig. 25. Fig. 26. | Theory and Calculation of Alternating Current Phenomena Chapter 6: Topographic Method | source research review |
theory-calculation-alternating-current-phenomena-fig-026Fig. 26 | Fig. 25. Fig. 26. in the opposite direction, from terminal B to terminal A in op- | Theory and Calculation of Alternating Current Phenomena Chapter 6: Topographic Method | source research review |
theory-calculation-alternating-current-phenomena-fig-029Fig. 29 | NON-INDUCTIVE LOAD Fig. 29. Fig. 30. | Theory and Calculation of Alternating Current Phenomena Chapter 6: Topographic Method | source research review |
theory-calculation-alternating-current-phenomena-fig-030Fig. 30 | Fig. 29. Fig. 30. these currents are represented in Fig. 29 by the vectors 01 1 = | Theory and Calculation of Alternating Current Phenomena Chapter 6: Topographic Method | source research review |
theory-calculation-alternating-current-phenomena-fig-031Fig. 31 | CAPACIir AND RESISTANCE Fig. 31. Fig. 32. | Theory and Calculation of Alternating Current Phenomena Chapter 6: Topographic Method | source research review |
theory-calculation-alternating-current-phenomena-fig-032Fig. 32 | Fig. 31. Fig. 32. triangle, Ei^E^^Ez^, the voltages at the receiver’s circuit, Ei, E2, | Theory and Calculation of Alternating Current Phenomena Chapter 6: Topographic Method | source research review |
theory-calculation-alternating-current-phenomena-fig-033Fig. 33 | RESISTANCE AND LEAKAGE Fig. 33. 16 I TRANSMISSION | Theory and Calculation of Alternating Current Phenomena Chapter 6: Topographic Method | source research review |
Formula Leads That Pair With The Visual Topic
Section titled “Formula Leads That Pair With The Visual Topic”| Candidate | OCR/PDF text | Source section | Routes |
|---|---|---|---|
engineering-mathematics-eq-candidate-0273engineering-math | Let A = a(cos a+j sin a) be divided by J5 = 6(cos ,5+y sin /5), | Engineering Mathematics: A Series of Lectures Delivered at Union College Chapter 1: The General Number | source research review |
engineering-mathematics-eq-candidate-0286engineering-math | If, A=ai +ja2 = a (cos a+j sin a), then | Engineering Mathematics: A Series of Lectures Delivered at Union College Chapter 1: The General Number | source research review |
engineering-mathematics-eq-candidate-0150engineering-math | and ai + ja2 = a (cos 6 + j sin d) ; | Engineering Mathematics: A Series of Lectures Delivered at Union College Chapter 1: The General Number | source research review |
engineering-mathematics-eq-candidate-0151engineering-math | or ai —ja2 = A(cos 0+j sin 6). | Engineering Mathematics: A Series of Lectures Delivered at Union College Chapter 1: The General Number | source research review |
engineering-mathematics-eq-candidate-0157engineering-math | and A ==5 (cos 37 deg. H-j sin 37 deg). | Engineering Mathematics: A Series of Lectures Delivered at Union College Chapter 1: The General Number | source research review |
engineering-mathematics-eq-candidate-0252engineering-math | C = AB = ah (cos a+j sin a) (cos /?+ / sin /5) | Engineering Mathematics: A Series of Lectures Delivered at Union College Chapter 1: The General Number | source research review |
engineering-mathematics-eq-candidate-0279engineering-math | A = ai +ja2 = a(cos a+j sin a), | Engineering Mathematics: A Series of Lectures Delivered at Union College Chapter 1: The General Number | source research review |
theory-calculation-alternating-current-phenomena-eq-candidate-0167symbolic-ac | B = 6’ + jh” = 6(cos 13 + j sin /3) | Theory and Calculation of Alternating Current Phenomena Chapter 5: Symbolic Method | source research review |
theory-calculation-alternating-current-phenomena-1900-eq-candidate-0240symbolic-ac | is r - j (x -f x0} = r = .6, x + x0 = 0, and tan S>0 = 0 ; | Theory and Calculation of Alternating Current Phenomena Chapter 8: Circuits Containing Resistance, Inductance, And Capacity | source research review |
theory-calculation-alternating-current-phenomena-eq-candidate-0294symbolic-ac | is r - j {x + Xo) = r = 0.6, x -{- Xo = 0, and tan do = 0; that | Theory and Calculation of Alternating Current Phenomena Chapter 9: Circuits Containing Resistance, Inductive Reactance, And Condensive Reactance | source research review |
engineering-mathematics-eq-candidate-0127engineering-math | 20. If ai+y6i=6+2.5 J is represented by the point Pi; | Engineering Mathematics: A Series of Lectures Delivered at Union College Chapter 1: The General Number | source research review |
engineering-mathematics-eq-candidate-0129engineering-math | and the vertical distance 6i=2.5. If a2+jb2 = S+4:j is repre- | Engineering Mathematics: A Series of Lectures Delivered at Union College Chapter 1: The General Number | source research review |
theory-calculation-alternating-current-phenomena-1900-eq-candidate-0001symbolic-ac | 1.) Ohm’s law : i = e j r, where r, the resistance, is a | Theory and Calculation of Alternating Current Phenomena Chapter 1: Introduction | source research review |
theory-calculation-alternating-current-phenomena-1897-eq-candidate-0001symbolic-ac | 1.) Ohm’s law : i = e j r, where r, the resistance, is a | Theory and Calculation of Alternating Current Phenomena Chapter 1: Introduction | source research review |
theory-calculation-alternating-current-phenomena-1900-eq-candidate-0131symbolic-ac | or, if E = e —je’ is the impressed E.M.F., and 7 = i ’ — ji’ | Theory and Calculation of Alternating Current Phenomena Chapter 5: Symbolic Method | source research review |
theory-calculation-alternating-current-phenomena-1900-eq-candidate-0156apparatus-systems | E.M.F. of the generator OE°, where Z0 = r0 - jx0 = inter- | Theory and Calculation of Alternating Current Phenomena Chapter 6: Topographic Method | source research review |
theory-calculation-alternating-current-phenomena-eq-candidate-0206symbolic-ac | /, upon the e.m.f., or by IE cos d, where 9 = angle of time- | Theory and Calculation of Alternating Current Phenomena Chapter 7: Polar Coordinates And Polar Diagrams | source research review |
theory-calculation-alternating-current-phenomena-1897-eq-candidate-0161symbolic-ac | but E = E^y I^E^j z. If x^ > - 2,t-, it raises, if ;r < - 2 jr, | Theory and Calculation of Alternating Current Phenomena Chapter 8: Capacity | source research review |
Editorial Use
Section titled “Editorial Use”This gallery is meant for discovery, not final citation. The strongest current source distribution is: Theory and Calculation of Alternating Current Phenomena (1168), Engineering Mathematics: A Series of Lectures Delivered at Union College (309), Elementary Lectures on Electric Discharges, Waves and Impulses, and Other Transients (39), Investigation of Some Trouble in the Generating System of the Commonwealth Edison Co. (26). Promote a diagram or formula only after the scan, page label, exact caption, and mathematical notation are checked.