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See searches and references containing ELECTRICAL REACTANCE!ELECTRICAL REACTANCE
Opposition to current by inductance or capacitance
elements involve transfer of electrical energy, no dissipation of electrical energy as heat occurs in reactance; instead, the reactance stores energy until a
Electrical_reactance
Topics referred to by the same term
Reactance may refer to: Electrical reactance, the opposition to a change in voltage due to capacitance (capacitive reactance) or in current due to inductance
Reactance
Constants in electrical engineering
sequence reactance X1, a negative sequence reactance X2 and a zero sequence reactance X0. Das identifies the following reactances: leakage reactance Xl. Potier
Reactances of synchronous machines
Reactances_of_synchronous_machines
Methods and tools to measure electricity
Voltage Electric current Electrical resistance and electrical conductance Electrical reactance and susceptance Magnetic flux Electrical charge by the means
Electrical_measurements
SI derived unit of power
equivalent for simple resistive circuits, they differ when loads exhibit electrical reactance. Radio stations usually report the power of their transmitters in
Watt
Parameter characterizing an AC conductor
at its feedpoint electrically equivalent to a resistance in series with a reactance. Adding an equal but opposite type of reactance in series with the
Electrical_length
Imaginary part of electrical admittance
frequency: C is very nearly, but not quite a constant. Reactance is defined as the imaginary part of electrical impedance, and is analogous to but not generally
Electrical_susceptance
Opposition of a circuit to a current when a voltage is applied
In electrical engineering, impedance is the opposition to alternating current presented by the combined effect of resistance and reactance in a circuit
Electrical_impedance
Fourth letter in the Greek alphabet
exogenous growth model in macroeconomics. In a system that exhibits electrical reactance, the angle between voltage and current. Partial charge in chemistry
Delta_(letter)
Electrical network theorem
Foster's reactance theorem is an important theorem in the fields of electrical network analysis and synthesis. The theorem states that the reactance of a
Foster's_reactance_theorem
Physical model of propagating energy
energy withdrawn by a receiver causing increased load (decreased electrical reactance) on the source. The near field does not propagate freely into space
Electromagnetic_radiation
Fluid pressure gradient required to cause a unit change in volumetric flow rate
small-signal analysis, an inertance can be represented as a fluid reactance (cf. electrical reactance) through the relation: X = j ω I {\displaystyle X=j\omega
Inertance
Opposition to the passage of an electric current
The electrical resistance of an object is a measure of its opposition to the flow of electric current. Its reciprocal quantity is electrical conductance
Electrical resistance and conductance
Electrical_resistance_and_conductance
Physical quantity of circuits related to magnetic flux, voltage and current
{\displaystyle L={\frac {n^{2}}{R}}} is called the inductance. Since the electrical reactance of an inductor X = ω L = 2 π f L {\displaystyle X=\omega L=2\pi fL}
Flux_linkage
Device that transmits and receives radio waves
capacitive (negative) reactance; by adding an appropriate size "loading coil" – a series inductance with equal and opposite (positive) reactance – the antenna's
Antenna_(radio)
Adjusting input/output impedances of an electrical circuit for some purpose
the general case when resistance and reactance are both significant, and the special case in which the reactance is negligible. Complex conjugate matching
Impedance_matching
Electrical device
self-capacitance. The electrical connection of capacitance and inductance leads to a frequency where the electrical reactance of the self-inductance
Balun
Device to couple energy between circuits
Core loss and reactance is represented by the following shunt leg impedances of the model: Core or iron losses: RC Magnetizing reactance: XM. RC and XM
Transformer
Assemblage of connected electrical elements
An electrical network is an interconnection of electrical components (e.g., batteries, resistors, inductors, capacitors, switches, transistors) or a model
Electrical_network
Type of overhead power line conductor
vs AC frequency. Often not tabulated with ACSR conductors is the electrical reactance of the conductor, which is due largely to the spacing between the
Aluminium-conductor steel-reinforced cable
Aluminium-conductor_steel-reinforced_cable
Measure of the opposition to current flow by an external electrical load
both static (resistance) and dynamic (reactance), into a load network or circuit that is external to the electrical source network. The input admittance
Input_impedance
Device to limit the current in lamps
to fail. To prevent this, a ballast provides a positive resistance or reactance that limits the current available to that device. Ballasts can also be
Electrical_ballast
Alteration of the original shape of a signal
loudspeaker impedance, etc. This form of distortion mostly occurs due to electrical reactance. Here, all the components of the input signal are not amplified with
Distortion
Electrical circuit with negligible impedance
deliberately designed to have a certain amount of leakage reactance. The leakage reactance (usually about 5 to 10% of the full load impedance) helps limit
Short_circuit
joule (J) w {\displaystyle w} width meter (m) X {\displaystyle X} electrical reactance ohm (Ω) x {\displaystyle \mathbf {x} } position vector meter (m)
List of common physics notations
List_of_common_physics_notations
Type of radio frequency antenna
antenna (given by the graph below), and includes a reactance, usually a loading coil, to tune out the reactance of the antenna, to make it resonant at the operating
Mast_radiator
Measure of a substance's ability to resist or conduct electric current
In physics, electrical resistivity and electrical conductivity are two intrinsic properties of materials that measure a material's local, intrinsic ability
Electrical resistivity and conductivity
Electrical_resistivity_and_conductivity
Association of electrical terms into pairs based on interchanging voltage and current
division – current division impedance – admittance capacitance – inductance reactance – susceptance short circuit – open circuit Kirchhoff's current law (KCL)
Duality_(electrical_circuits)
Electromagnetic frequencies ranging from 9 kHz to 300 GHz
like the dielectric insulator of a capacitor. This is because capacitive reactance in a circuit decreases with increasing frequency. In contrast, RF current
Radio_frequency
Passive component (choke) suppressing high-frequency noise in electronic circuits
inductor's reactance may commonly be referred to simply as impedance, impedance generally can be any combination of resistance and reactance. [citation
Ferrite_bead
Graphical representation of the performance of an electrical machine
where Rs, Xs: Stator resistance and leakage reactance Rr′, Xr′, ...s: Rotor resistance and leakage reactance referred to the stator and rotor slip Rc, Xm
Circle_diagram
Type of AC electric motor
resistance and leakage reactance ( R s {\displaystyle R_{s}} , X s {\displaystyle X_{s}} ). Rotor resistance, leakage reactance, and slip ( R r {\displaystyle
Induction_motor
Type of electronic test equipment
impedance analyzers come with a reactance chart which shows the reactance values for capacitive reactance XC and inductive reactance XL for a given frequency
Impedance_analyzer
High-voltage electric circuit
signal losses. The inductive reactance of the line trap presents a high reactance to high-frequency signals but a low reactance to mains frequency. This prevents
Line_trap
Electronic component
A capacitor is a device that stores electrical energy by accumulating electric charges on two closely spaced surfaces that are insulated from each other
Capacitor
Measure of the opposition to current flow by an internal electrical load
static (resistance) and dynamic (reactance), into the load network being connected that is internal to the electrical source. The output impedance is a
Output_impedance
Method for estimating body composition
the voltage is measured in order to calculate impedance (resistance and reactance) of the body. These measurements can be used to estimate body fat, body
Bioelectrical impedance analysis
Bioelectrical_impedance_analysis
Interconnected network for delivering electricity to consumers
An electrical grid (or electricity network) is an interconnected network for electricity delivery from producers to consumers. Electrical grids consist
Electrical_grid
Testing to ensure the compliance of electrical systems with safety standards
In relation to electrical usage, electrical safety testing aims to ensure that electrical products and installations are safe. To meet this goal, governments
Electrical_safety_testing
once called current limiting reactance coils, were first presented in 1915. The inventor of the current limiting reactance coil was Vern E. Alden who filed
Current_limiting_reactor
Decrease in electric potential along the flow of current in a circuit
specific frequency. Electrical impedance is computed as the vector sum of electrical resistance, capacitive reactance, and inductive reactance. The amount of
Voltage_drop
SI unit of electric conductance
Conductance, susceptance, and admittance are the reciprocals of resistance, reactance, and impedance respectively; hence one siemens is equal to the reciprocal
Siemens_(unit)
Ease of electrical current flow
into account not only the resistance but also dynamic effects (known as reactance). Likewise, admittance is not only a measure of the ease with which a
Admittance
Magnetic perturbation of imperfectly coupled transformers
flux that does not link with all turns of each coupled winding. Leakage reactance is usually the most important element of a power system transformer due
Leakage_inductance
Graphical calculator used in electrical engineering
( z ) {\displaystyle \operatorname {Re} (z)} ) and arcs of constant reactance ( Im ( z ) {\displaystyle \operatorname {Im} (z)} ). Standard charts
Smith_chart
Tube used to protect and route electrical wiring in a building or structure
An electrical conduit is a tube used to protect and route electrical wiring in a building or structure. Electrical conduit may be made of metal, plastic
Electrical_conduit
Class of electronic filter
in the tank circuit become too small to be practical. Since the electrical reactance of an inductor of a certain inductance increases linearly with respect
RF_and_microwave_filter
Canceling impedances at a particular frequency
converting all the current into useful work. Since the inductive reactance and the capacitive reactance are of equal magnitude, ω L = 1 ω C {\displaystyle \omega
Electrical_resonance
Term in electrical engineering
act as a synchronous voltage source to support transient reactance and sub-transient reactance, also providing the inertial response and fault current
Short circuit ratio (electrical grid)
Short_circuit_ratio_(electrical_grid)
American electrical engineer and inventor (1931–2022)
freepatentsonline.com/3235802.pdf GB Patent 1017095, James R. Biard, "Electrical Reactance Amplifiers", Filed: May 22, 1962, Issued: January 12, 1966. http://worldwide
James_R._Biard
Law of electrical current and voltage
varies in time, then reactance must be added to resistance to account for self-inductance, see electrical impedance. The reactance may be strong if the
Ohm's_law
Model for magnetic circuits
F) is the analogy to inductance in an electrical circuit. For phasor analysis the magnetic inductive reactance is x L = ω L M , {\displaystyle x_{\text{L}}=\omega
Gyrator–capacitor_model
Relationship between harmonic force and velocity
{\displaystyle \omega m} is known as the inertial reactance, while − k / ω {\displaystyle -k/\omega } is the elastic reactance. At the resonant frequency ω 0 = k /
Mechanical_impedance
Passive two-terminal electrical component that stores energy in its magnetic field
capacitance between turns of the wire. A capacitive reactance rises with frequency while inductive reactance falls. At a certain frequency, the inductor will
Inductor
Electronics component
in a current. That resistance is called inductive reactance, measured in ohms. Inductive reactance depends on how quickly the current is changing: quick
Speaker_wire
Rate at which electrical energy is transferred by an electric circuit
current flow reverses twice each cycle. In resistive circuits, with no reactance, in which the current reverses at the same instant as the voltage reverses
Electric_power
Machinery used to adjust conditions on the electric power transmission grid
appearing across the stator inductance L: VL=IsXL where XL is the stator reactance. Now the stator current Is is no longer zero. Since the machine is ideal
Synchronous_condenser
Type of power supply using a capacitor
capacitive dropper is a type of power supply that uses the capacitive reactance of a capacitor to reduce higher AC mains voltage to a lower DC voltage
Capacitive_power_supply
Electrical pre-breakdown phenomenon
In electrical engineering, treeing is an electrical pre-breakdown phenomenon in solid insulation. It is a damaging process due to partial discharges and
Electrical_treeing
inverse of the saturated direct-axis synchronous reactance (in p.u.): SCR=1XS Higher SCR requires lower reactance XS that in practice means a larger air gap
Short circuit ratio (synchronous generator)
Short_circuit_ratio_(synchronous_generator)
Large dummy load for testing electric power transmission systems
Capacitive reactance is equal to 1/(2⋅π⋅f⋅C), and inductive reactance is equal to 2⋅π⋅f⋅L. The unit of reactance is the ohm. Inductive reactance resists
Load_bank
Opposition that a system presents to an acoustic pressure
acoustic reactance, denoted XL, and capacitive acoustic reactance, denoted XC, are the positive part and negative part of acoustic reactance respectively:[citation
Acoustic_impedance
Electrical engineering standard
steady-state AC circuit, all the energy stored in reactances is returned within the AC cycle, so a pure reactance, a capacitor or inductor, neither consumes
Passive_sign_convention
American electrical engineer and inventor (1877–1956
561,483 - Distinguishing dielectric sheets U.S. patent 1,676,745 - Electrical reactance and method and apparatus U.S. patent 1,907,571 - Radio Receiving
Greenleaf_Whittier_Pickard
Subfield of electronics
analog circuits, but tend to occupy a larger chip area due to their lower reactance at low frequencies. Gyrators can replace them in many applications. As
Microelectronics
Decrease of the carbon content in metals (usually steel)
FeO → CO + Fe Electrical steel is one material that uses decarburization in its production. To prevent the atmospheric gases from reacting with the metal
Decarburization
Type of radio antenna
loading at the top does reduce capacitive reactance at the base, usually some residual capacitive reactance remains. For transmitting antennas that must
T-antenna
current at normal voltage, power factor on short circuit, total leakage reactance, and starting torque of the motor can be found. It is very important to
Blocked_rotor_test
Type of variable reactance inductor
of the saturable reactor drops dramatically. This decreases inductive reactance and allows increased flow of the alternating current (AC). Saturable reactors
Saturable_reactor
Discrete device in an electronic system
products, available in a singular form and are not to be confused with electrical elements, which are conceptual abstractions representing idealized electronic
Electronic_component
Fundamental interaction between charged particles
Electromagnetism also plays several crucial roles in modern technology: electrical energy production, transformation and distribution; light, heat, and sound
Electromagnetism
Type of capacitor
of ESR, by a capacitive reactance XC X C = − 1 ω C {\displaystyle X_{C}=-{\frac {1}{\omega C}}} and by an inductive reactance XL (Inductance) X L = ω
Electrolytic_capacitor
British mathematician and electrical engineer (1850–1925)
A., "A propos de la reactance", L'Industrie Electrique, 10 May 1893. This is confirmed by Heaviside himself, "The term 'reactance' was lately proposed
Oliver_Heaviside
Type of electrical transformer
providing electrical isolation between primary and secondary circuits. Other advantages of autotransformers include lower leakage reactance, lower losses
Autotransformer
(disambiguation) Electrical breakdown Electrical conductance Electrical impedance Electrical mobility Electrical network Electrical phenomena Electrical reactance Electrical
Index_of_physics_articles_(E)
Electrical capacitor with an insulating plastic film as the dielectric
Capacitance (Capacitive reactance) : X C = − 1 ω C {\displaystyle X_{C}=-{\frac {1}{\omega C}}} Inductance(Inductive reactance): X L = ω L E S L {\displaystyle
Film_capacitor
Heat from a current in an electric conductor
interest than the instantaneous power. For an ideal resistor, with zero reactance, the average Joule-heating power is P a v g = U rms I rms = ( I rms )
Joule_heating
Antenna used for radio broadcasts
antenna's electrical height exceeds about 5/8 wavelengths tall. Reactance is zero only for towers slightly shorter than 1/4 wavelength, but the reactance will
Folded_unipole_antenna
Type of electrolytic capacitor
of ESR, by a capacitive reactance XC X C = − 1 ω C {\displaystyle X_{C}=-{\frac {1}{\omega C}}} and by an inductive reactance XL (Inductance) X L = ω
Tantalum_capacitor
Frequencies in coupled oscillators
antiresonance is the condition for which the reactance vanishes but the resistive impedance of an electrical circuit is none the less very high, approaching
Antiresonance
Circuit used to measure inductance
the measurement results. The capacitive reactance in the bridge will exactly oppose the inductive reactance of the load when the bridge is balanced,
Maxwell_bridge
American inventor and engineer (1901–1988)
Resistance (Electrical)", issued on Jan 3, 1928 1,710,149: "Reactance Coil (Electrical)", issued on Mar 11, 1930 1,804,852: "Circuit Controlling Reactance Coil
Frank_Zamboni
Tool used to measure dimensions of an object
overlapping area results in a variable capacitive reactance, which changes the phase position of the electrical signals. A linear function between the mechanical
Calipers
Topics referred to by the same term
controlling a fusion power reaction An inductor (possessing reactance) in an electrical power grid A current limiting reactor is used to limit starting
Reactor
Low resistance electrical conductor for high current transmission and distribution
drop by virtue of close spacing of bus bars, which reduces inductive reactance. A trolley busway provides power to equipment that must be frequently
Bus_duct
Lower bound on the quality factor of small radio antennae
resistance and relatively high reactance, so that a tuning component must be added in series with the antenna to cancel its reactance and assist matching to the
Chu–Harrington_limit
Difference between phase angles
\over X}} where Z0 is the characteristic impedance of the line X is the reactance of the inductance or capacitance, given respectively by ωL or −1⁄ωC L
Reflection_phase_change
Type of electrical resistance from an antenna
{\displaystyle \ R_{\mathsf {in}}\ } and a reactance (capacitance or inductance) equal but opposite to the antenna's reactance. If these impedances are not matched
Radiation_resistance
Type of capacitor
ESR, by a capacitive reactance (Capacitance) X C = − 1 ω C {\displaystyle X_{C}=-{\frac {1}{\omega C}}} and by an inductive reactance (Inductance) X L =
Aluminum electrolytic capacitor
Aluminum_electrolytic_capacitor
Medical diagnostic method
(fluid) and reactance (membrane) to impedance, multifrequency EIM may allow a more comprehensive assessment of disease. Resistance, reactance, or phase
Electrical impedance myography
Electrical_impedance_myography
Electrical safety device used in household wiring
interrupter (GFCI) is an electrical safety device, more specifically a form of earth-leakage circuit breaker, that interrupts an electrical circuit when the current
Residual-current_device
Theorem in electrical engineering
real power transfer. This is done by adding a reactance to the load to balance out the load's own reactance, changing the reactive load impedance into a
Maximum power transfer theorem
Maximum_power_transfer_theorem
Type of AC electrical generator
current. This can be supplied from the electrical grid or, once it starts producing power, from a capacitive reactance. The generating mode for induction
Induction_generator
Electron flow-powered mechanical device
In electrical engineering, an electric machine is a general term for a machine that makes use of electromagnetic forces and their interactions with voltages
Electric_machine
Property of electrical conductors
X_{L}={\frac {V_{p}}{I_{p}}}=2\pi f\,L} Reactance has units of ohms. It can be seen that inductive reactance of an inductor increases proportionally with
Inductance
Fixed-value capacitor using ceramic
wherein the capacitive reactance (Capacitance) is X C = − 1 ω C {\displaystyle X_{C}=-{\frac {1}{\omega C}}} and an inductive reactance (Inductance) is X L
Ceramic_capacitor
Linear circuit that produces an output voltage that is a fraction of its input voltage
the impedance of the capacitor, given by Z2=−jXC=1jωC , where XC is the reactance of the capacitor, C is the capacitance of the capacitor, j is the imaginary
Voltage_divider
Manufacturing styles of an electronic device
total reactance at the angular frequency ω {\displaystyle \omega } therefore is given by the geometric (complex) addition of a capacitive reactance (Capacitance)
Capacitor_types
Type of material
coatings, composites, use in electronics, electrical components (e.g. for chips on board), LEDs, high-tension electrical insulators, paintbrush manufacturing
Epoxy
Topics referred to by the same term
which is neither acidic nor basic Neutral particle, a particle without electrical charge Neutral element or identity element, in mathematics, a special
Neutral
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