DIELECTRIC CHARACTERISTICS Three factors were shown to affect the capacitance of a capacitor. One factor is the type of insulating material used for the dielectric. Most capacitors are constructed using a dielectric material having a higher dielectric constant than air. The dielectric constant of an insulating material measures the effectiveness of the material when it […]
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ALTERNATING CURRENT GENERATORS
Capacitors and RC Time Constants : Dielectric characteristics , Capacitance formulas and Capacitors in parallel.
DIELECTRIC CHARACTERISTICS Three factors were shown to affect the capacitance of a capacitor. One factor is the type of insulating material used for the dielectric. Most capacitors are constructed using a dielectric material having a higher dielectric constant than air. The dielectric constant of an insulating material measures the effectiveness of the material when it […]
Continue reading…
Capacitors and RC Time Constants : Capacitors in series , Capacitors in network systems , Energy in a capacitor and RC time constants.
CAPACITORS IN SERIES When capacitors are connected in series, the dielectrics of the individual capacitors are connected one after the other to form a single circuit path. This arrangement is equivalent to increasing the thickness of the dielectric of one capacitor. This means that the total capacitance of the circuit is less than the capacitance […]
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Capacitors and RC Time Constants : Capacitors in series , Capacitors in network systems , Energy in a capacitor and RC time constants.
CAPACITORS IN SERIES When capacitors are connected in series, the dielectrics of the individual capacitors are connected one after the other to form a single circuit path. This arrangement is equivalent to increasing the thickness of the dielectric of one capacitor. This means that the total capacitance of the circuit is less than the capacitance […]
Continue reading…
Principles of ac voltage control and summary of alternating current generators .
PRINCIPLES OF AC VOLTAGE CONTROL In an alternator, an alternating voltage is induced in the armature windings when magnetic fields of alternating polarity are passed across these windings. The amount of voltage induced in the windings depends mainly on three things: (1) the number of conductors in series per winding, (2) the speed (alternator rpm) […]
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Principles of ac voltage control and summary of alternating current generators .
PRINCIPLES OF AC VOLTAGE CONTROL In an alternator, an alternating voltage is induced in the armature windings when magnetic fields of alternating polarity are passed across these windings. The amount of voltage induced in the windings depends mainly on three things: (1) the number of conductors in series per winding, (2) the speed (alternator rpm) […]
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Principles of ac voltage control and summary of alternating current generators .
PRINCIPLES OF AC VOLTAGE CONTROL In an alternator, an alternating voltage is induced in the armature windings when magnetic fields of alternating polarity are passed across these windings. The amount of voltage induced in the windings depends mainly on three things: (1) the number of conductors in series per winding, (2) the speed (alternator rpm) […]
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Single-phase alternators, three-phase alternator and frequency
ANSWERS TO QUESTIONS Q1. THROUGH Q21. A1. A conductor and a magnetic field. A2. Armature. A3. Rotating armature and rotating field. A4. Output voltage is taken directly from the armature (not through brushes or slip rings). A5. To provide dc current for the rotating field. A6. Kilovolt-amperes (volt amperes). A7. Steam turbine. A8. Internal combustion […]
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Single-phase alternators, three-phase alternator and frequency
ANSWERS TO QUESTIONS Q1. THROUGH Q21. A1. A conductor and a magnetic field. A2. Armature. A3. Rotating armature and rotating field. A4. Output voltage is taken directly from the armature (not through brushes or slip rings). A5. To provide dc current for the rotating field. A6. Kilovolt-amperes (volt amperes). A7. Steam turbine. A8. Internal combustion […]
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Single-phase alternators, three-phase alternator and frequency
ANSWERS TO QUESTIONS Q1. THROUGH Q21. A1. A conductor and a magnetic field. A2. Armature. A3. Rotating armature and rotating field. A4. Output voltage is taken directly from the armature (not through brushes or slip rings). A5. To provide dc current for the rotating field. A6. Kilovolt-amperes (volt amperes). A7. Steam turbine. A8. Internal combustion […]
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