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Electric Circuits In Depth Part 1

Muhammad Kashif via Udemy

(14 Reviews)

Overview

Following Topics are Covered

Ohms Law

•Resistance , Voltage

•Calculate Current

•What is Voltage Drop

•What is Potential Difference

•Source & load voltages

•Source Impedance

•Line Impedance

•Load Impedance

•Voltage drop across line

•Voltage drop across Source impedance

•Voltage drop across load

•What is Power Loss, I2R Loss

•What is % Voltage Drop

•What is reference / Neutral Voltage

•Concept of Potential difference.

•What will happen if neutral voltage rise

•Concept of Constant Voltage Source

•Concept of Constant Current Source

•Rated Current & Short Circuit Current

•Which is good high or low source impedance merit & De-merit

•Ohm’s law states that the voltage or potential difference between two points is directly proportional to the current or electricity passing through the resistance, and directly proportional to the resistance of the circuit. The formula for Ohm’s law is V=IR. This relationship between current, voltage, and relationship was discovered by German scientist Georg Simon Ohm. Let us learn more about Ohms Law, Resistance, and its applications.

•Most basic components of electricity are voltage, current, and resistance. Ohm’s law shows a simple relation between these three quantities. Ohm’s law states that the current through a conductor between two points is directly proportional to the voltage across the two points.

•Voltage= Current× Resistance
V= I×R
V= voltage, I= current and R= resistance

•The SI unit of resistance is ohms and is denoted by Ω

•This law is one of the most basic laws of electricity. It helps to calculate the power, efficiency, current, voltage, and resistance of an element of an electrical circuit.

•Ohm’s law helps us in determining either voltage, current or impedance or resistance of a linear electric circuit when the other two quantities are known to us. It also makes power calculation simpler.

•In order to establish the current-voltage relationship, the ratio V / I remains constant for a given resistance, therefore a graph between the potential difference (V) and the current (I) must be a straight line.

•It is the constant ratio that gives the unknown values of resistance,

•For a wire of uniform cross-section, the resistance depends on the length l and the area of cross-section A. It also depends on the temperature of the conductor. At a given temperature the resistance,

•A series generally means connected along a line, or in a row, or in an order. In electronics, series resistance means that the resistors are connected one after the other and that there is only one path for current to flow through.

•Individual resistance add up to the total circuit resistance

•Current through the circuit is the same at every point.

•Individual voltages throughout the circuit add up to the total voltage.

•There are many different ways to organize a parallel circuit. In the practical world, most of the wiring is done in parallel so that the voltage to any one part of the network is the same as the voltage supplied to any other part of it.

•The reciprocals of all the individual resistances add up to the reciprocal of the total circuit resistance.
1/RT = 1/R1 + 1/R2 + 1/R3 …

•Voltage through the circuit is the same at every point.

•Individual current draws throughout the circuit add up to the total current draw.

Who this course is for:

  • Student, Engineer, Professionals

Course Content

2 sections - 15 lectures - 01:56:01 total length

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Instructor

Muhammad Kashif

  • 3 Instructor Rating
  • 190 Reviews
  • 2614 Students

Total 16 plus years of Experience in Electrical Grids / Substations. I have lead & completed 20 substation projects. Worked at 380/132/11kV Voltage Levels in Saudi Arab and 500/220/132/11kV Substation in NTDC Pakistan. I started my career from NTDC pakistan where I served at protection engineer at 500/220/132/11kV Substation Jamshoro & 132/11kV substation Vehari and I also completed 36 weeks long protection & instrumentation training in Lahore & Tarbela(2003-2008). I further move to Siemens Saudi as Protection Engineer & completed Projects with Clients that include Saudi Aramco, Petrofac , Marafiq, Saudi Electricity (Eastern, Central & Western Region), SIPCHEM (Saudi International Petrochemical Company), SABIC,YANSAB Yanbu National Petrochemical Company. Having plate form of Siemens Saudi. I have core competancy in Protection Relays, Protection Scheme, GIS/AIS equipment testing, Control Schemes, automation system etc.I have Total 10 years of experience in Saudi Arab at 380/132/11kV voltage levels. And completed several trainings related to protection relays & automations system in Saudi Arab & Germany. Previleged to work in Pakistan for 6 plus years with NTDC ( National Transmission & Dispatched Services ), WAPDA ( Water & Power Developement Authority) & Pioneer Member of ETCS ( Erection Testing & Commissioning Services) , Completed Projects in Pakistan with clients K.E ( K-Electric), GETZ Pharma, Amreli Steel, DHA( Defence Housing Authority).