resonance circuits
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This document discusses reactance in series and parallel circuits. It explains how vectors can be used to represent voltages and currents in reactive circuits, accounting for phase differences. Key concepts covered include reactance, impedance, power dissipation, and resonance, which occurs when a circuit's inductive and capacitive reactance are balanced. Figures and diagrams are provided to illustrate these electrical concepts.
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1. The document discusses series and parallel resonant circuits, explaining that in a series resonant circuit the inductive and capacitive reactances cancel out at resonance, resulting in minimum impedance equal to resistance. In a parallel resonant circuit, the currents through the inductor and capacitor are equal and opposite at resonance, resulting in minimum current drawn from the power supply.
2. Experiments are described to obtain the characteristics of series and parallel resonant circuits by varying frequency, inductance, or capacitance and measuring current. Current reaches a maximum in series resonance and minimum in parallel resonance.
3. Circuit diagrams and tables are provided to record experimental results for series and parallel resonant circuits when varying frequency, inductance, or capacitance.
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1. The document discusses series and parallel resonant circuits, explaining that in a series resonant circuit the inductive and capacitive reactances cancel out at resonance, resulting in minimum impedance equal to resistance. In a parallel resonant circuit, the currents through the inductor and capacitor are equal and opposite at resonance, resulting in minimum current drawn from the power supply.
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11. sma kelas xii rpp kd 3.6;4.6 arus bolak balik (karlina 1308233)
bila terdapat kekurangan kesalahan bisa di email ke dasepggl@gmail.com atau sms ke 0856 5990 0626
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1. Resonance occurs when the inductive reactance (XL) equals the capacitive reactance (XC).
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3. Very high currents can exist at resonance in AC power systems, so it should be avoided. However, resonance is used in tuned circuits like radio.
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The document summarizes an experiment on analyzing series and parallel RLC circuits. It describes:
1) Calculating the theoretical resonance frequency of a series RLC circuit as 18.8 kHz, but measuring it experimentally as 16.73 kHz, a difference of 11.1%.
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The document discusses inductive reactance (XL) in alternating current circuits. It explains that XL increases with increasing frequency and inductance, reducing the amount of current. The formula for calculating XL is given as XL = 2πfL, where f is the frequency and L is the inductance. Methods for calculating total XL in series and parallel circuits are also described. Examples of typical inductance values needed for different frequencies are provided. Finally, the document explains that the voltage induced across an inductor (VL) by a sine wave current will be 90 degrees out of phase with the current.
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3. Very high currents can exist at resonance in AC power systems, so it should be avoided. However, resonance is used in tuned circuits like radio.
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* Apparent power (S) = √(P^2 + Q^2)
* = √(3,000^2 + 4,000^2)
* = √(9,000,000 + 16,000,000)
* = √25,000,000
* = 5,000 VA = 5 kVA
The apparent power is 5 kVA. The answer is b.
Ac circuits 15 april 2013(1)
Here are the key steps to solve this problem:
1) Draw the circuit diagram showing R, L, C in series with the AC voltage source.
2) Write the impedance equation:
Z = √(R2 + (XL - XC)2)
3) Calculate the individual reactances:
XL = 2πfL
XC = 1/(2πfC)
4) Calculate the net reactance:
Xnet = XL - XC
5) Calculate the impedance Z by plugging values into the impedance equation.
6) Use Ohm's law to calculate the current:
Irms = Vrms/Z
Ac circuits 15 april 2013(1)
Okay, let's think through this step-by-step:
* When just the resistor is connected, power is 1.000 W
* When the capacitor is added, power is 0.500 W
* When the inductor is added (without the capacitor), power is 0.250 W
* Power delivered depends on the impedance of the circuit. Adding more reactive elements (capacitor, inductor) increases the total impedance.
* When both the capacitor and inductor are added, they will combine to further increase the total impedance compared to having just one of them.
* Using the power formula P = V2/Z, as Z (impedance) increases, power delivered decreases.
Ac circuits 15 april 2013(1)
Okay, let's think through this step-by-step:
* When just the resistor is connected, power is 1.000 W
* When the capacitor is added, power is 0.500 W
* When the inductor is added (without the capacitor), power is 0.250 W
* Power delivered depends on the impedance of the circuit. Adding more reactive elements increases the total impedance.
* With just the resistor, impedance is minimum, so power is maximum.
* With resistor + capacitor, impedance increases, so power decreases to 0.500 W.
* With resistor + inductor, impedance increases further, so power decreases more to 0.250 W
Ac circuits 15 april 2013(1)
Okay, let's think through this step-by-step:
* When just the resistor is connected, power is 1.000 W
* When the capacitor is added, power is 0.500 W
* When the inductor is added (without the capacitor), power is 0.250 W
* Power delivered depends on the impedance of the circuit. Adding more reactive elements (capacitor, inductor) increases the total impedance.
* When both the capacitor and inductor are added, they will combine to further increase the total impedance compared to having just one of them.
* Based on the trend so far, we can infer that adding both reactive elements will deliver even less power than having just one.
Augmentation of Real & Reactive Power in Grid by Unified Power Flow Controller
In this paper, a Power Flow Control in transmission line with respect to voltage condition (L-G, L-L-G, L-L)
over come by using unified power flow controller. The existing system employs UPFC with transformer less
connection with both series and shunt converter. This converter have been cascaded with multilevel inverters
which is more complicated to enhance the performance of UPFC.A proposed system consist of three terminal
transformer for shunt converter and six terminal transformer for series converter. Shunt converter & series
converter is coupled with common DC capacitor. DC link capacitor voltage is maintained using PID controller
and synchronous reference frame theory (SRF) is used to generate reference voltage & current signal.
Simulation studies are carried out for (L-G, L-L-G, L-L real & reactive power compensation results will be
shown in this paper)
resistive ac circuits
This document discusses basic AC resistive circuits including series and parallel configurations. It explains that in a basic AC circuit, the voltage and current are in phase for a resistive load. The document also covers that voltage drops, applied voltage, and current are all in phase for series AC circuits, and that the applied voltage, total current, and branch currents are in phase for parallel AC circuits. Power in resistive AC circuits relates current and voltage similarly to DC circuits.
ELC 131 Lab 4 Series-Parallel and Bridge CircuitsIntroduction Vi.docx
This document outlines the requirements for laboratory reports in an electronics and computer engineering course. Laboratory reports must be submitted within one week and include: a professional presentation; pre-lab completion; data tables and graphs in an appendix; an abstract, work description, and results/discussion sections; and completed questions. The report should follow a memorandum format, which concisely communicates the key information and conclusions to a knowledgeable reader in 1-3 pages. Required sections include a heading, abstract, work description, results and discussion, and appendix. Data must be displayed in clear tables and graphs with labels and units.
FACT.pptx
This document discusses power flow in transmission lines and how FACTS (Flexible AC Transmission System) controllers can be used to control power flow. It begins by describing the basic model of power flow on a transmission line connected between two buses and defines key variables. It then discusses different types of FACTS controllers - series controllers that inject voltage in series with the line, shunt controllers that inject current at the point of connection, and combined configurations. The key points are that series controllers can provide powerful control of active power flow by varying the line reactance or angle, while shunt controllers are more effective for reactive power control by varying bus voltages. Combined configurations allow control of both active and reactive power.
Ac circuits
Okay, let's think through this step-by-step:
* When just the resistor is connected, power is 1.000 W
* When the capacitor is added, power is 0.500 W
* When the inductor is added (without the capacitor), power is 0.250 W
* Power delivered is proportional to the square of the current. As impedance increases, current decreases.
* With just the resistor, impedance is lowest so current is highest and power is 1.000 W
* Adding the capacitor increases impedance, so current decreases and power is 0.500 W
* Adding the inductor further increases impedance, so current decreases more and power is 0.250 W
Alternating Current
Alternating current signal
AC means Alternating Current and DC means Direct Current. AC and DC are also used when referring to voltages and electrical signals which are not currents! For example: a 12V AC power supply has an alternating voltage (which will make an alternating current flow).
The MATLAB File by Akshit Jain .pdf on .
"Unlock the Power of Data Analysis and Computational Modeling with this MATLAB File!
This MATLAB file is a versatile tool designed to revolutionize your data analysis and computational modeling processes. Whether you're a scientist, engineer, researcher, or student, MATLAB empowers you to tackle complex problems with ease.
With an intuitive interface and robust functionality, this file enables you to manipulate, visualize, and interpret data with precision. From statistical analysis and signal processing to machine learning and optimization, MATLAB offers a comprehensive suite of tools to meet your diverse needs.
Additionally, this file provides access to a vast library of built-in functions and toolboxes, allowing you to customize and extend its capabilities to suit your specific requirements. Whether you're analyzing experimental data, simulating dynamic systems, or developing algorithms, MATLAB empowers you to turn your ideas into reality.
Experience the power and versatility of MATLAB today and unlock new possibilities in data analysis and computational modeling!"
Electrical Engineering
Electrical Engineering is the Branch of Engineering. Electrical Engineering field requires an understanding of core areas including Thermal and Hydraulics Prime Movers, Analog Electronic Circuits, Network Analysis and Synthesis, DC Machines and Transformers, Digital Electronic Circuits, Fundamentals of Power Electronics, Control System Engineering, Engineering Electromagnetics, Microprocessor and Microcontroller. Ekeeda offers Online Mechanical Engineering Courses for all the Subjects as per the Syllabus Visit : https://ekeeda.com/streamdetails/stream/Electrical-Engineering
Alternating current circuits
This document provides an outline and overview of key concepts in alternating current (AC) circuits including:
1. AC sources and how AC voltage and current vary sinusoidally over time.
2. The behavior of resistors, inductors, and capacitors in AC circuits, including how their current and voltage are phase shifted.
3. Series RLC circuits and the concept of resonance where the current is at its maximum.
4. Power calculations in AC circuits and the power factor.
5. Transformers and how they are used for power transmission. Electrical filters are also discussed.
Unit -1 Introdcution to PSA.pptx
This document contains information about power system components and fault analysis. It includes:
- An introduction to one-line diagrams and their use in representing power systems through standardized schematic symbols. One-line diagrams simplify three-phase systems and are useful for power flow studies.
- Descriptions of impedance diagrams and reactance diagrams, which represent power system components through equivalent circuits by replacing elements like generators, transformers, and transmission lines with their impedances or reactances.
- Examples of drawing one-line, impedance, and reactance diagrams for given power system configurations. Resistances are often omitted from reactance diagrams for fault analysis calculations.
- Explanations of symmetrical components and their use
Growth of current R-L and R-C Series circuit
1) The document discusses growth of current in an R-L series circuit and growth of charge in an R-C series circuit.
2) It explains that in an R-L series circuit, the current does not reach its maximum value instantly due to the inductor's property of opposing changes in current. It defines the inductive time constant as the time required for the current to reach 63% of its maximum value.
3) Similarly, in an R-C series circuit, the charge on the capacitor increases gradually and not instantly. It defines the capacitive time constant as the time required for the charge to increase to 63% of its maximum value.
Hp 18 win
This document provides instructions for navigating a presentation on electric circuits. It begins with an overview slide and table of contents. It then covers topics like schematic diagrams, components of electric circuits, and calculating equivalent resistances and currents in series and parallel circuits. Examples are provided, such as calculating the equivalent resistance and current in a complex circuit.
Ac circuits 15 april 2013
This document discusses alternating current (AC) circuits containing resistors, capacitors, and inductors. It begins by introducing AC circuits and defining the sinusoidal output of an AC generator. It then examines each circuit element individually:
- Resistors allow current proportional to voltage in an AC circuit, similar to DC circuits. RMS values are used to quantify AC power dissipation in resistors.
- Capacitors oppose changes in voltage by drawing/supplying current, causing the voltage to lag the current by 90 degrees. Capacitive reactance describes this opposition.
- Inductors oppose changes in current by inducing a back EMF, causing the current to lag the voltage by 90 degrees. Inductive
Dependence of Power Factor on Inductive Loads for Microcontroller based Power...
This document investigates the effect of inductive loads on power factor in microcontroller-based power systems. Different combinations of resistive and inductive loads were tested by varying the inductance from 269.1 to 1232 mH while keeping resistance at 124 ohms. The current through the load decreased with increasing inductance, while voltage remained constant. Power factor was calculated from the phase difference between load voltage and current. Power factor ranged from 0.305 to 0.829, with lower power factors occurring at higher inductances. The research aims to understand how impedance affects power factor in electrical power systems.
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resonance circuits
- 2. Reactance in Series Circuits Figure 17-1. DC resistive circuit.
- 3. Reactance in Series Circuits (cont’d.) Figure 17-2. AC resistive circuit.
- 4. Reactance in Series Circuits (cont’d.) Figure 17-3. In a resistive AC circuit, current and voltage are in phase.
- 5. Reactance in Series Circuits (cont’d.) Figure 17-4. Voltage in either RL circuits such as this one or in RC circuits is not in phase and cannot be added directly.
- 6. Reactance in Series Circuits (cont’d.) Figure 17-5. Vectors can be used to show the relationship between voltages in a reactive circuit.
- 7. Reactance in Series Circuits (cont’d.) Figure 17-7. Vectors can also be used to describe impedance.
- 8. Reactance in Series Circuits (cont’d.) Figure 17-8. Vectors can be used to describe capacitive AC circuits, the same as inductive circuits.
- 9. Reactance in Parallel Circuits Figure 17-10. Vectors can be used to analyze parallel inductance circuits. Current flow, not voltage, is used because the voltage across each component is equal and in phase.
- 10. Figure 17-11. Vectors can be used to analyze parallel capacitance circuits.
- 11. Power Figure 17-13. Power dissipation in a resistive circuit has a non-zero value (A). In a reactive circuit, there is no average or net power loss (B).
- 12. Power (cont’d.) Figure 17-14. In a reactive circuit, the true power dissipated with resistance and the reactive power supplied to its reactance vectorly sum to produce an apparent power vector.
- 13. Introduction to Resonance Resonant circuits Pass desired frequencies and reject all others Resonance When a circuit’s inductive and capacitive reactance are balanced
- 14. Summary Ohm’s law applies to AC circuits, just as it does to DC circuits Vector representation allows the use of trigonometric functions to determine voltage or current when the phase angle is known Resonance is desired for radio frequency in tuning circuits