Energy Storage in Fields Concordance
Energy Storage in Fields
Section titled “Energy Storage in Fields”Concordance status: generated from processed OCR/PDF text. Treat these as source-location aids until each passage is checked against the scan.
213 hits
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12 sources
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42 sections
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Matched Aliases
Section titled “Matched Aliases”energy of the field, energy stored, stored energy, stored in the field
Source Distribution
Section titled “Source Distribution”| Source | Hits | Sections |
|---|---|---|
| Elementary Lectures on Electric Discharges, Waves and Impulses, and Other Transients | 75 | 10 |
| Elementary Lectures on Electric Discharges, Waves and Impulses, and Other Transients | 71 | 9 |
| Theory and Calculation of Transient Electric Phenomena and Oscillations | 43 | 11 |
| General Lectures on Electrical Engineering | 11 | 2 |
| Theoretical Elements of Electrical Engineering | 3 | 1 |
| Theory and Calculation of Electric Circuits | 3 | 3 |
| Radiation, Light and Illumination | 2 | 1 |
| Theory and Calculation of Alternating Current Phenomena | 1 | 1 |
| Theory and Calculation of Electric Apparatus | 1 | 1 |
| Four Lectures on Relativity and Space | 1 | 1 |
| Theory and Calculation of Alternating Current Phenomena | 1 | 1 |
| Theory and Calculation of Alternating Current Phenomena | 1 | 1 |
Section Hits
Section titled “Section Hits”Representative Source Snippets
Section titled “Representative Source Snippets”Lecture 1: Nature And Origin Of Transients - 25 hit(s)
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... re phenome- non. While electric power flows over the line A, there is a magnetic field surrounding the line conductors, and an electrostatic field issuing from the line conductors. The magnetic field and the electrostatic or " dielectric " field represent stored energy. Thus, during the permanent conditions of the flow of power through the circuit Fig. 3, there is electric energy stored in the space surround- ing the line conductors. There is energy stored also in the genera- tor and in the load ; for instance, the mech ...Lecture 1: Nature And Origin Of Transients - 25 hit(s)
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... re phenome- non. While electric power flows over the line A , there is a magnetic field surrounding the line conductors, and an electrostatic field issuing from the line conductors. The magnetic field and the electrostatic or "dielectric " field represent stored energy. Thus, during the permanent conditions of the flow of power through the circuit Fig. 3, there is electric energy stored in the space surround- ing the line conductors. There is energy stored also in the genera- tor and in the load ; for instance, the mech ...Lecture 8: Traveling Waves - 13 hit(s)
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... al short circuit a quantity of magnetic energy is impressed upon a part of the circuit. This energy then gradually distributes over the circuit, as indicated by the curves B, C, etc., of Fig. 39, that is, moves along the circuit, and the dissipation of the stored energy thus occurs by a flow of power along the circuit. 90 ELECTRIC DISCHARGES, WAVES AND IMPULSES. Such a flow of power must occur in a circuit containing sec- tions of different dissipation constants u. For instance, if in a circuit consisting of an unloa ...Lecture 8: Traveling Waves - 13 hit(s)
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... al short circuit a quantity of magnetic energy is impressed upon a part of the circuit. This energy then gradually distributes over the circuit, as indicated by the curves B, C, etc., of Fig. 39, that is, moves along the circuit, and the dissipation of the stored energy thus occurs by a flow of power along the circuit. 90 ELECTRIC DISCHARGES, WAVES AND IMPULSES. Such a flow of power must occur in a circuit containing sections of different dissipation constants u. For instance, if a circuit consists of an unloaded tra ...Chapter 1: The Constants Of The Electric Circuit - 11 hit(s)
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... t elapse during which the energy of the electric field is stored, and the generator therefore gives more power than consumed in the conductor and delivered at the receiving end; again, the flow of electric energy cannot be stopped instantly, but first the energy stored in the electric field has to be expended. As result hereof, where the flow of electric energy pulsates, as in an alternating- current circuit, continuously electric energy is stored in the field during a rise of the power, and returned to the circuit aga ...Lecture 7: High Frequency Oscillations And Surges - 10 hit(s)
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... age ■^ occurs as electrostatic energy, or electrostatic charge due to the voltage on the line (capacity) ; and as electromag- netic energy, or magnetic field of the current in the line (inductance). In the long distance transmission line, both amounts of stored energy are very considerable, and of about equal magnitude; the former varying with the voltage, the latter with the current in the line. Any change of the voltage on the line, or the current in the line, or the relation between volt- age and current, therefore ...Chapter 7: Power And Energy Of The Complex Circuit - 10 hit(s)
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... ction of length A' to the rest of the circuit, or received by the section from the rest of the circuit, is proportional to the length of the section, A', to its trans- fer constant, s, and to the sum of the power of main wave and reflected wave. 51. The energy stored by the inductance L of a circuit element dXj that is, in the magnetic field of the circuit, is 'LV dwl =-^~A where U = inductance per unit length of circuit expressed by the distance coordinate A. Since L = the inductance per unit length of circuit, ...Lecture 6: Double-Energy Transients - 8 hit(s)
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LECTURE VI. DOUBLE-ENERGY TRANSIENTS. 24. In a circuit in which energy can be stored in one form only, the change in the stored energy which can take place as the result of a change of the circuit conditions is an increase or decrease. The transient can be separated from the permanent condition, and then always is the representation of a gradual decrease of energy. Even if the stored ene ...Lecture 9: Oscillations Of The Compound Circuit - 8 hit(s)
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... ms of such circuits have been shown in the previous lecture. If we have a circuit consisting of sections 1, 2, 3 . . . , of the respective lengths (in velocity measure) Xi, X2, X3 . . . , this entire circuit, when left to itself, gradually dissipates its stored energy by a transient. As function of the time, this transient must decrease at the same rate Uq throughout the entire circuit. Thus the time decrement of all the sections must be Every section, however, has a power-dissipation constant, Ui, U2, U3 . . . , whic ...Lecture 6: Double-Energy Transients - 8 hit(s)
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LECTURE VI. DOUBLE-ENERGY TRANSIENTS. 24. In a circuit in which energy can be stored in one form only, the change in the stored energy which can take place as the result of a change of the circuit conditions is an increase or decrease. The transient can be separated from the permanent condition, and then always is the representation of a gradual decrease of energy. Even if the stored ene ...Lecture 9: Oscillations Of The Compound Circuit - 8 hit(s)
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... ms of such circuits have been shown in the previous lecture. If we have a circuit consisting of sections 1, 2, 3 . . . , of the respective lengths (in velocity measure) Xi, X2, X3 . . . , this entire circuit, when left to itself, gradually dissipates its stored energy by a transient. As function of the time, this transient must decrease at the same rate u0 throughout the entire circuit. Thus the time decrement of all the sections must be 6-**. Every section, however, has a power-dissipation constant, u\t Uz, u3 . . ...Chapter 6: Transition Points And The Complex Circuit - 6 hit(s)
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... ch is the same throughout the entire circuit. In an isolated section, of time constant u, the time decrement, from Chapters III and V, is, however, e~ut; that is, with the decrement e~ut the wave dies out in the isolated sec- tion at the rate at which its stored energy is dissipated by the power lost in resistance and conductance. In a section of the circuit connected to other sections the time decrement e~U(* does not correspond to the power dissipation in the section; that is, the wave does not die out in each section ...Lecture 2: The Electric Field - 5 hit(s)
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... electric field of the conductor. 8. The magnetic field or magnetic flux of the circuit, $, is pro- portional to the current, i, with a proportionality factor, L, which is called the inductance of the circuit. $ = L^.* (1) The magnetic field represents stored energy ly. To produce it, power, p, must therefore be supplied by the circuit. Since power is current times voltage : P = e'i, (2) * n^, if the flux <l> interlinks the circuit n fold. 12 ELECTRIC DISCHARGES, WAVES AND IMPULSES. to produce the magnetic fie ...Lecture 3: Single-Energy Transients In Continuous Current Circuits - 5 hit(s)
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LECTURE III. SINGLE-ENERGY TRANSIENTS IN CONTINUOUS- CURRENT CIRCUITS. 13. The simplest electrical transients are those in circuits in which energy can be stored in one form only, as in this case the change of stored energy can consist only of an increase or decrease ; but no surge or oscillation between several forms of energy can exist. Such circuits are most of the low- and medium-voltage circuits, — 220 volts, 600 volts, and 2200 volts. In them the capac- ity is small, d ...Lecture 2: The Electric Field - 5 hit(s)
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... ctric field of the conductor. 8. The magnetic field or magnetic flux of the circuit, <£, is pro- portional to the current, i, with a proportionality factor, L, which is called the inductance of the circuit. = Li. (1) The magnetic field represents stored energy w. To produce it, power, p, must therefore be supplied by the circuit. Since power is current times voltage, p = e'i. (2) 12 ELECTRIC DISCHARGES, WAVES AND IMPULSES. To produce the magnetic field $ of the current i, a voltage ef must be consumed in ...Lecture 3: Single-Energy Transients In Continuous Current Circuits - 5 hit(s)
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LECTURE III. SINGLE-ENERGY TRANSIENTS IN CONTINUOUS- CURRENT CIRCUITS. 13. The simplest electrical transients are those in circuits in which energy can be stored in one form only, as in this case the change of stored energy can consist only of an increase or decrease ; but no surge or oscillation between several forms of energy can exist. Such circuits are most of the low- and medium-voltage circuits, — 220 volts, 600 volts, and 2200 volts. In them the capac- ity is small, d ...Chapter 6: Oscillating Currents, - 5 hit(s)
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... an effective resistance, which increases the rapidity of the decay of the oscillation, and thus limits the power, and, when approaching the critical value, also lowers the frequency. This is obvious, since the oscillating current is the dissipation of the energy stored electrostatically in the condenser, and the higher the resistance of the circuit, the more rapidly is this energy dissipated, that is, the faster the oscillation dies out. With a resistance of the circuit sufficiently low to give a fairly well sustained ...Lecture 4: Single-Energy Transients In Alternating Current Circuits - 4 hit(s)
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LECTURE IV. SINGLE-ENERGY TRANSIENTS IN ALTERNATING- CURRENT CIRCUITS. 17. Whenever the conditions of an electric circuit are changed in such a manner as to require a change of stored energy, a transi- tion period appears, during which the stored energy adjusts itself from the condition existing before the change to the condition after the change. The currents in the circuit during the transition period can be considered as consisting of the ...