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- 08:25, 22 November 2020 diff hist 0 N File:TX Inrush Simple.png current
- 08:25, 22 November 2020 diff hist 0 N File:TX Inrush Flux.png current
- 08:23, 22 November 2020 diff hist +58 RL Circuit Switching current
- 08:21, 22 November 2020 diff hist +6,060 N RL Circuit Switching Created page with "== Introduction == The RL switching / closing transient is one of the most common electrical transients that is encountered in practice, and is also the basis for the computa..."
- 08:21, 22 November 2020 diff hist 0 N File:RL Transient.png current
- 08:21, 22 November 2020 diff hist 0 N File:RL Switching.PNG current
- 08:20, 22 November 2020 diff hist +3,257 N Resonance Created page with "== Classical Derivations == === Series Resonance === right|thumb|264px|Figure 1. Classical series resonance circuit The classical circu..." current
- 08:20, 22 November 2020 diff hist 0 N File:Practical Series Resonance.png current
- 08:20, 22 November 2020 diff hist 0 N File:Practical Parallel Resonance.png current
- 08:19, 22 November 2020 diff hist 0 N File:Parallel Resonance Basic1.png current
- 08:19, 22 November 2020 diff hist 0 N File:Series Resonance Basic.png current
- 08:18, 22 November 2020 diff hist +630 N Remote Earth Created page with "Remote earth is a concept used to describe the resistance between one point in earth and an arbitrarily distant point (also in earth). The earth resistance between any two poi..." current
- 08:17, 22 November 2020 diff hist +1,895 N Referring Impedances Created page with "In a system with multiple voltage levels, it is sometimes necessary convert impedances from one voltage to another, i.e. so that they can be used in a single equivalent circui..." current
- 08:17, 22 November 2020 diff hist +6,289 N Photovoltaic Cell Model Created page with "The photovoltaic (PV) cell converts solar energy into electrical energy (direct current). It is often useful to take a cell operating at a certain solar irradiance and tempera..." current
- 08:16, 22 November 2020 diff hist 0 N File:PV ISDM.png current
- 08:16, 22 November 2020 diff hist 0 N File:PV SDM.png current
- 08:15, 22 November 2020 diff hist +3,073 N Network Interfacing Created page with "In dynamic time-domain simulations, network interfacing refers to the interfacing of dynamic models to the network and involves two main tasks: :* Reference frame transformat..." current
- 08:15, 22 November 2020 diff hist 0 N File:Norton equiv machine interface.png current
- 08:14, 22 November 2020 diff hist +1,390 N Explicit Numerical Integrators Created page with "== Modified Euler Method == The modified Euler (or Heun's) method is a two-stage [http://en.wikipedia.org/wiki/Predictor%E2%80%93corrector_method predictor-corrector method]:..." current
- 08:12, 22 November 2020 diff hist +8,512 N Inertia Created page with "In power systems engineering, "inertia" is a concept that typically refers to rotational inertia or rotational kinetic energy. For synchronous systems that run at some nominal..." current
- 08:12, 22 November 2020 diff hist 0 N File:Industrial GT shaft.png current
- 08:12, 22 November 2020 diff hist 0 N File:Combustion engine shaft.png current
- 08:12, 22 November 2020 diff hist 0 N File:Hydro turbine shaft.jpg current
- 08:11, 22 November 2020 diff hist 0 N File:Aero GT shaft.png current
- 08:11, 22 November 2020 diff hist 0 N File:Steam turbine shaft.jpg current
- 08:11, 22 November 2020 diff hist 0 N File:EirGrid Inertia.png current
- 08:11, 22 November 2020 diff hist 0 N File:Inertia and Frequency Response.png current
- 08:10, 22 November 2020 diff hist 0 N File:Arc circle.png current
- 08:09, 22 November 2020 diff hist +82 Induction Motor Performance
- 08:08, 22 November 2020 diff hist +571 N Induction Motor Performance Created page with "Induction motors typically run at highest efficiency and power factor at full-load. However when motors are run at lower load factors, there is generally a cor..."
- 08:08, 22 November 2020 diff hist 0 N File:Motor performance.png current
- 08:08, 22 November 2020 diff hist +35 Induction Motor Torque current
- 08:07, 22 November 2020 diff hist +35 Induction Motor Model →Related Topics current
- 08:05, 22 November 2020 diff hist +169 Overhead Line Constants →Kron Reduction current
- 08:02, 22 November 2020 diff hist +4 Motor Parameter Estimation from Steady-State Models →Software current
- 08:01, 22 November 2020 diff hist +11,587 N Motor Parameter Estimation from Steady-State Models Created page with "Estimation of an induction motor's equivalent circuit parameters from steady-state models and manufacturer performance data is the most common approa..."
- 08:00, 22 November 2020 diff hist 0 Induction Motor Torque →Related Topics
- 08:00, 22 November 2020 diff hist +4,203 N Induction Motor Torque Created page with "The torque developed in an induction machine can be calculated from the motor model / equivalent circuit because the torque developed is proportional..."
- 07:59, 22 November 2020 diff hist 0 N File:Torque-speed curve.png current
- 07:59, 22 November 2020 diff hist +30 Induction Motor Model →Related Topics
- 07:58, 22 November 2020 diff hist +8,100 N Induction Motor Model Created page with "== Single Cage Model == right|thumb|350px|Figure 1. Single cage model equivalent circuit The single cage model has the following para..."
- 07:58, 22 November 2020 diff hist 0 N File:Dbl cage equiv circuit2.png current
- 07:57, 22 November 2020 diff hist 0 N File:Dbl cage equiv circuit.png current
- 07:57, 22 November 2020 diff hist 0 N File:Single cage equiv circuit2.png current
- 07:57, 22 November 2020 diff hist 0 N File:Single cage equiv circuit.png current
- 07:55, 22 November 2020 diff hist +1,810 N Motor Driven Load Created page with "== Load Characteristics == === Constant Torque Loads === In this load characteristic, the torque is constant across the entire speed range. The power is therefore directly p..." current
- 07:55, 22 November 2020 diff hist 0 N File:Variable torque.png current
- 07:55, 22 November 2020 diff hist 0 N File:High start torque.png current
- 07:55, 22 November 2020 diff hist 0 N File:Constant torque power.png current
- 07:54, 22 November 2020 diff hist 0 N File:Constant torque.png current
- 07:54, 22 November 2020 diff hist 0 N File:Constant power.png current
- 07:53, 22 November 2020 diff hist 0 N File:DQ voltage.png current
- 07:53, 22 November 2020 diff hist 0 N File:DQ current.png current
- 07:52, 22 November 2020 diff hist 0 N File:DQ reference frame.png current
- 07:52, 22 November 2020 diff hist +9,067 N Dq0 Transform Created page with "The dq0 transform (often called the Park transform) is a space vector transformation of three-phase time-domain signals from a stationary phase coordinate system (ABC) to a ro..." current
- 07:51, 22 November 2020 diff hist +9,481 N Clarke Transform Created page with "The Clarke or <math>\alpha \beta 0 \,</math> transform is a space vector transformation of time-domain signals (e.g. voltage, current, flux, etc) from a natural three-phase co..." current
- 07:51, 22 November 2020 diff hist 0 N File:Clarke transform3.png current
- 07:50, 22 November 2020 diff hist 0 N File:Clarke transform2.png current
- 07:50, 22 November 2020 diff hist 0 N File:Clarke transform1.png current
- 07:48, 22 November 2020 diff hist +5,705 N Complex Electrical Quantities Created page with "== Derivation == In 1897, [http://en.wikipedia.org/wiki/Charles_Proteus_Steinmetz Charles Proteus Steinmetz] first suggested representing sinusoidal AC waveforms as complex q..." current
- 07:48, 22 November 2020 diff hist 0 N File:ComplexQuantity2.PNG current
- 07:48, 22 November 2020 diff hist 0 N File:ComplexQuantity1.PNG current
- 07:46, 22 November 2020 diff hist +6,042 N Frequency Dependent Line Model Created page with "== Motivation == right|thumb|500px|Figure 1. A generic single-phase distributed parameter line model In this section, we try to answer the que..." current
- 07:45, 22 November 2020 diff hist 0 N File:Under construction.png current
- 07:45, 22 November 2020 diff hist -3 Bergeron Line Model →Related Topics current
- 07:45, 22 November 2020 diff hist 0 N File:Bergeron model.png current
- 07:44, 22 November 2020 diff hist +13,140 N Bergeron Line Model Created page with "== Introduction == The Bergeron line model is a discrete-time representation of the travelling wave model with constant line parameters that is..."
- 07:44, 22 November 2020 diff hist 0 N File:Multiconductor bergeron.png current
- 07:44, 22 November 2020 diff hist 0 N File:Lossy Bergeron.png current
- 07:43, 22 November 2020 diff hist 0 N File:Bergeron lossless line.png current
- 07:43, 22 November 2020 diff hist 0 N File:Generic bergeron.png current
- 07:42, 22 November 2020 diff hist 0 N File:Travelling wave iplus2.png current
- 07:42, 22 November 2020 diff hist 0 N File:Travelling wave iplus.png current
- 07:42, 22 November 2020 diff hist 0 N File:Travelling wave model.png current
- 07:41, 22 November 2020 diff hist +2,533 N Talk:Travelling Wave Line Model Created page with "== Footnotes == === Derivation of Voltage Equation === The general solution to the transmission line wave equations are: : <math> I(x, t) = i^{+}(x - vt) + i^{-}(x + vt) \,..." current
- 07:41, 22 November 2020 diff hist +18,634 N Travelling Wave Line Model Created page with "== Introduction == left|thumb|500px|Figure 1. Travelling wave along a line (image courtesy of [http://en.wikipedia.org Wikipedia]) A travelling w..." current
- 07:41, 22 November 2020 diff hist 0 N File:Wave equation.gif current
- 07:40, 22 November 2020 diff hist +3,149 N Talk:Distributed Parameter Line Model Created page with "== Footnotes == === Derivation of A<sub>1</sub> and A<sub>2</sub> === Based on the boundary conditions at the receiving end of the line (<math>x = 0 \, </math>), i.e. : <ma..." current
- 07:39, 22 November 2020 diff hist 0 N File:Distributed parameter line.png current
- 07:38, 22 November 2020 diff hist +28,577 N Distributed Parameter Line Model Created page with "This article describes the steady-state or frequency domain distributed parameter line model. By steady-state, we mean that the voltage and current along the line are steady a..." current
- 07:37, 22 November 2020 diff hist 0 N File:Multi pi line.png current
- 07:36, 22 November 2020 diff hist +9,646 N Multi-conductor Line Models Created page with "== Introduction == Image:DSCI0402.JPG|right|thumb|250px|Figure 1. Three-phase, single-circuit tower line (image courtesy of [http://en.wikipedia.org/wiki/File:DSCI0402.JPG..." current
- 07:35, 22 November 2020 diff hist +5,475 N Talk:Single-Phase Line Models Created page with "== Footnotes == === Derivation of Adjusted Line Parameters for Equivalent <math>\pi</math> Model === In order to get the same ABCD parameters as the distributed parameter li..." current
- 07:35, 22 November 2020 diff hist +11,935 N Single-Phase Line Models Created page with "== ABCD Parameters (Generalised Line Constants) == Consider the overhead line represented as a [http://en.wikipedia.org/wiki/Two-port_network two-port network] of the form:..." current
- 07:34, 22 November 2020 diff hist 0 N File:Nominal Pi Line.png current
- 07:34, 22 November 2020 diff hist 0 N File:LC Line.png current
- 07:34, 22 November 2020 diff hist 0 N File:L Line.png current
- 07:33, 22 November 2020 diff hist 0 N File:RL Line.png current
- 07:33, 22 November 2020 diff hist 0 N File:Two-port-network.png current
- 07:32, 22 November 2020 diff hist +2 Main Page
- 07:32, 22 November 2020 diff hist +2 Modified Admittance Matrix current
- 07:31, 22 November 2020 diff hist +2 Ill-Conditioning current
- 07:31, 22 November 2020 diff hist +2 2 Winding Transformer Models current
- 07:31, 22 November 2020 diff hist +2 Synchronous Machine Models current
- 04:25, 19 November 2020 diff hist +143 Main Page
- 14:29, 18 November 2020 diff hist -56 Overhead Line Models →Taxonomy of Overhead Line Models current
- 14:27, 18 November 2020 diff hist +2,645 N Sequence Networks Created page with "right|thumb|450px|Reduced sequence networks: (a) Positive sequence, (b) Negative sequence, (c) Zero sequence In Symmetrical Components|symme..." current
- 14:27, 18 November 2020 diff hist 0 N File:Sequence Test Network.PNG current
- 14:26, 18 November 2020 diff hist 0 N File:Sequence Representations.PNG current
- 14:26, 18 November 2020 diff hist 0 N File:Sequence Networks Example.PNG current
- 14:26, 18 November 2020 diff hist 0 N File:Sequence networks.PNG current
- 14:25, 18 November 2020 diff hist +11,007 N Symmetrical Components Created page with "Symmetrical components is a mathematical method for representing an unbalanced set of phasors into three decoupled (independent) sets of phasors - two balanced sets and a thir..." current
- 14:24, 18 November 2020 diff hist 0 N File:Zero seq.PNG current
- 14:24, 18 November 2020 diff hist 0 N File:Negative seq.PNG current
- 14:24, 18 November 2020 diff hist 0 N File:Positive seq.PNG current
- 14:24, 18 November 2020 diff hist 0 N File:Unbalanced phasors.PNG current
- 14:23, 18 November 2020 diff hist 0 N File:Original phasors.png current
- 14:16, 18 November 2020 diff hist -32 Overhead Line Constants →Carson Earth Correction Factors
- 14:14, 18 November 2020 diff hist +9,439 N Overhead Line Constants Created page with "left|thumb|700px|Figure 1. Circuit representation of a multi-conductor line segment <br clear=all> Image:DSCI0402.JPG|right|thumb|250px..."
- 14:14, 18 November 2020 diff hist 0 N File:Multiconductor segment.png current
- 14:13, 18 November 2020 diff hist 0 N File:Line constants geometry.png current
- 14:13, 18 November 2020 diff hist 0 N File:DSCI0402.JPG current
- 14:12, 18 November 2020 diff hist +7,575 N Overhead Line Models Created page with "== Introduction == This article describes the most common overhead line (OHL) models used in power systems analysis. By line models, we mean equivalent circuits composed of el..."
- 14:10, 18 November 2020 diff hist +2,512 N Infinite Bus Created page with "The infinite bus concept is a simplifying assumption that is applied to buses or nodes with an infinite upstream fault capacity (or an equivalent upstream source impedance of..." current
- 14:06, 18 November 2020 diff hist 0 N File:Gen bus house load point.gif current
- 14:06, 18 November 2020 diff hist 0 N File:Inf bus vf.gif current
- 14:04, 18 November 2020 diff hist +4,858 N Simple Power Flow Example Created page with "Consider the simple model shown in Figure 1, where a large stiff network supplies a constant power load <math>\boldsymbol{S} \, </math> through an impedance <..." current
- 14:04, 18 November 2020 diff hist 0 N File:Simple Power Flow Fig1.png current
- 14:03, 18 November 2020 diff hist +19,158 N Newton-Raphson Power Flow Created page with "The Newton-Raphson algorithm is the most commonly used iterative method to solve the power flow problem. == Derivation of the Newton-Raphson Method using Taylo..." current
- 14:03, 18 November 2020 diff hist 0 N File:Taylor Example 1.png current
- 14:02, 18 November 2020 diff hist +3 Power Flow →Calculated Bus Power Injections current
- 14:00, 18 November 2020 diff hist 0 N File:Three bus SLD.png current
- 14:00, 18 November 2020 diff hist 0 N File:Three bus nodal.png current
- 13:59, 18 November 2020 diff hist +19,619 N Power Flow Created page with "== Introduction == The objective of the '''power flow''' (or '''load flow''') calculation is to determine the steady-state operating conditions of an electrical network. The..."
- 13:59, 18 November 2020 diff hist 0 N File:Network Analyser.jpg current
- 13:56, 18 November 2020 diff hist +6 Electrical Power →Derivation current
- 13:55, 18 November 2020 diff hist +2 Electrical Power →DC Power
- 13:55, 18 November 2020 diff hist +15,570 N Electrical Power Created page with "How do the various formulae for electrical power fit together? What is the difference between DC, AC and complex power and how do they harmonise with our physical conceptions..."
- 13:54, 18 November 2020 diff hist 0 N File:ComplexPower2.PNG current
- 13:54, 18 November 2020 diff hist 0 N File:ComplexPower1.PNG current
- 13:53, 18 November 2020 diff hist 0 N File:Power2.PNG current
- 13:53, 18 November 2020 diff hist 0 N File:Power1.PNG current
- 13:52, 18 November 2020 diff hist +4,925 N AC Power Transmission Created page with "== Introduction == Consider the following model depicting the transfer of AC power between two buses across a line: Image:AC_Transmission_Model.PNG|left|frame|250px|Figure..." current
- 13:52, 18 November 2020 diff hist 0 N File:PV Curve.PNG current
- 13:51, 18 November 2020 diff hist 0 N File:Lossless Transmission.PNG current
- 13:51, 18 November 2020 diff hist 0 N File:AC Transmission Model.PNG current
- 13:50, 18 November 2020 diff hist +7,931 N Transformer Impedance Created page with "== Positive Sequence Impedance == The transformer positive sequence impedance is also called the short circuit impedance (because it is measured from a short circuit test) or..." current
- 13:50, 18 November 2020 diff hist 0 N File:TX 2W Zero Seq Test.PNG current
- 13:49, 18 November 2020 diff hist 0 N File:TX 2W Impedance Test.PNG current
- 13:48, 18 November 2020 diff hist +4,458 N 2 Winding Transformer Models Created page with "== Positive Sequence Model == right|thumb|500px|Figure 1. Positive sequence two-winding transformer equivalent circuit The standard positive s..."
- 13:48, 18 November 2020 diff hist 0 N File:TX Zero Sequence Current Flows.png current
- 13:47, 18 November 2020 diff hist 0 N File:TX Zero Sequence.png current
- 13:47, 18 November 2020 diff hist 0 N File:TX equiv circuit.png current
- 13:59, 16 November 2020 diff hist -56 m IP Rating →Summary of IP Ratings current
- 13:58, 16 November 2020 diff hist +4,311 N IP Rating Created page with "== Introduction == IP Rating refers to the International Protection or Ingress Protection of electrical enclosures, against the intrusion of solid objects, water, dust and ac..."
- 13:55, 16 November 2020 diff hist +3,331 N Cable Voltage Grade Created page with "== Definition == right|thumb|400px|Figure 1. Meaning of U and U0 AC cables are designed to be suitable for specific design voltages, which i..."
- 13:54, 16 November 2020 diff hist 0 N File:Cable Voltage Grade.png current
- 13:52, 16 November 2020 diff hist +4,576 N Modified Admittance Matrix Created page with "In dynamic time-domain simulations, the network model is based on a steady-state power flow solution, which also provides the initial conditions for the dynamic..."
- 13:50, 16 November 2020 diff hist +2,356 N Complex Impedance Created page with "Complex impedances are commonly used quantities in the analysis of AC power systems. A complex impedance is represented by the following relation: : <math> Z = R + jX \, </ma..." current
- 13:47, 16 November 2020 diff hist +2,498 N Ill-Conditioning Created page with "In some power systems, the Jacobian matrix can be ill-conditioned, leading to difficulties in reaching a valid a power flow solution. == Ill-Conditioned Matrices == A matrix..."
- 13:46, 16 November 2020 diff hist +6,973 N Per-unit System Created page with "== Introduction == The per-unit system is a method of expressing quantities in an electrical system (e.g. voltage, current, impedance, etc) as a proportion of pre-defined bas..." current
- 13:44, 16 November 2020 diff hist +3,841 N Kron Reduction Created page with "The Kron Reduction is a relatively simple technique for eliminating nodes from a network when the voltage or current at that node is zero. The technique is named after [http:/..." current
- 13:42, 16 November 2020 diff hist -3 m Synchronous Machine Models
- 13:41, 16 November 2020 diff hist +9,536 N Synchronous Machine Models Created page with "This page describes the most common synchronous machine models used in stability studies. == Nomenclature == The standard machine parameters are defined as follows: * <math..."
- 14:18, 15 November 2020 diff hist -626 Main Page