Fundamental of Electrical Power System Protection

Fundamental of Electrical Power System Protection

Study straight from a World Skilled Electrical Engineer with +17 years of Area Expertise , Safety & Management

What you’ll be taught

  • Introduction to Electrical Safety Philosophy
  • Going via historical past of energy system community
  • Benefits & Disadvantages of Energy Community
  • Introduce to idea of SCADA, Good Metering, Micro Grid
  • Introduction to Cascade Faults in community
  • How Energy High quality of Community is assessed
  • Briefing on Flase Tripping on account of poor relay coordination
  • What’s that means of localization of fault
  • What are Fault & Even Information
  • Fault investigation
  • What’s Comtrade file
  • Synch & Auto Reclosing, Energy Swing
  • What’s required to guard
  • Step & Contact Potential Hazards
  • Lighting Safety Defined
  • What’s objective of safety
  • Step Potential Hazard close to fallen conductor
  • Purpose of Large Blackouts and easy methods to keep away from them
  • Restrict harm
  • Why Gravel is laid in AIS
  • Voltage or Present Which is deadly
  • Introduction to earth leakage Relay
  • Safety System Traits Selectivity. Sensitivity. Pace. Reliability. Simplicity. Economic system.
  • Relationship of Sensitivity and relay burden
  • Which relay have extra buden 1 Amp of 5 Amp?
  • Determine what main, secondary and management equipments are
  • Distinction amongst Circuit Breaker, Isolator & Load Break Swap
  • System Main Parts, Lighting Arrestor, CT,VT CB, Isolator, Busbar, Lighting Mast, AIS, GIS, T/F,MV SWGR, Batteries, Chargers
  • Introduction to Single Line Diagram
  • Introduction of Schematics / Element Drawings
  • Introduction to Interlock Logic Diagram
  • Defined GIS, LCC, Fuel Diagram, Fuel compartment
  • Defined primary elements Harting Plug, terminal block Din Rail
  • Auxiliary Relays and its sort
  • Magnetic Contactors
  • Principal Relays & Safety Panels
  • What’s Burden and easy methods to discover relay rated burden
  • Engineering Design Section intro
  • Manufacturing & Supply Section intro
  • Set up Testing & Commissioning Section
  • Upkeep Section , idea of life cycle price, Upkeep price
  • What are Zones of Safety, Zone Over lapping, Main & Backup safety, duplicate safety
  • Feeder, motor, Generator & Line safety Zone by instance
  • Perceive Selectivity & Zones of safety
  • How Zones assist to localize the fault
  • What’s that means of shut & open zone
  • Tele Safety , Backup safety at native & Distant loaction
  • Understanding how totally different parts of Safety system operates
  • Classification of Relays
  • Electromechnical , Digital , Microprocessor based mostly & Numerical Relays
  • Attracted Armature Kind, Plunger Kind, Induction Disk sort, Induction cup sort, D´Arsonval unit, Thermal Relays
  • Interposing C.T , Section & Ration Compensation necessities for transformer differential safety
  • Intro to Sensor, SF6 Gauges, Winding & Oil Temperature Gauges, Stress aid gadget, sudden strain gadget, Buchholz Relays
  • Introduction to particular time and inverse time Over Present Relays
  • Introduction to Directional Over Present Relays
  • Introduction to Magnitude & Differential Safety
  • What are section comparability relays and the way they function
  • Introduction to breaker fail & busbar safety
  • Elements Influencing Relay Efficiency
  • Primary Electrical Idea, Ohm’s Legislation, Kirchhoff’s Present Legislation, Kirchhoff’s Voltage Legislation, Per unit System
  • calculate three section energy, rated main and secondary present of Energy transformer
  • calculate brief circuit MVA, brief circuit HV & LV present of transformer
  • Calculate Arc flash Hazard of transformer
  • Understanding Phases, Steadiness & Unbalance System, Three Section, Section to Section & Single Section Faults
  • Understanding Symmetrical Parts
  • Present Transformer, Sorts, polarity, Saturation, ratio, error of C.T, Metering & Safety Core, Knee Level, Burden
  • Why C.T ought to by no means be open circuited, Why C.T secondary is grounded, Why Single level earthing is completed.
  • What’s star level in the direction of line and bus means
  • Perceive Accuracy restrict issue & Identify plate of C.T, Lessons of C.T
  • Voltage transformer & its sort, Error in voltage transformer, what’s CCVT,
  • Ferro Damping & Compensating Reactor in CCVT, Why V.T secondary is grounded, Why Single level earthing is completed.
  • Metering & Safety Core of V.T, Accuracy class, join V.T secondary, Star & Open delta connections
  • Voltage Drop in V.T circuit, Voltage Issue, Ferro-Resonance in Magnetic Voltage Transformer
  • Substation Batteries, Why Batteries are required, sorts of batteries
  • measure capability of Battery, What imply by AH, Particular gravity, Hydro Meter, Voltage per Cell & per financial institution
  • Defined DC system Single Line Diagram , do Upkeep of Batterries
  • Battery Charger, What’s charger scheme in substation, Dropping Diodes, Terminal voltage, Float Boast & Trickle Charging,
  • Understanding Single Line Diagram of Charger
  • Floor of DC System, Why it’s required, How it’s achieved, DC Earthing downside in substation
  • What are capacitor storage journey models
  • Introduction to ANSI gadget numbers
  • Relays Utility for Feeder, Generator, Motor, transformer, busbar. Which sort of safety relays are put in
  • Idea of inside, exterior & via fault
  • Why transformer differential is totally different from Busbar differential
  • Introduction to Circuit Breaker, sorts of circuit breaker, . Bulk oil circuit-breaker B. Minimal oil circuit-breaker C. Air blast circuit-breaker D. Vacuum circuit-breaker E. SF6 circuit-breaker F. HVDC circuit-breaker
  • Perceive Circuit Breaker Working Cycle
  • Circuit Breaker, Anti pumping, Pole discrepancy, Journey Circuit Supervision Schems
  • Determine what main, secondary and management equipments are
  • Clarify how an over present & earth fault relay operates
  • Clarify how the currents and voltages differ throughout all three section fault circumstances
  • Draw what {an electrical} safety system appears to be like like
  • Equip a safety panel and determine the entire principal equipments
  • Perceive the necessities for a present transformer


  • The essential electrical rules
  • A primary understanding {of electrical} engineering


Safety & management programs are a essential a part of the transmission & distribution programs that feed energy to megacities & industries.

This course goals to introduce the entire primary rules related to electrical energy programs safety with examples.

I’ve tried my greatest to incorporate a sensible instance from the sphere as I’ve 17 years of discipline expertise in substations. I’ve included actual examples, gear nameplate, Single line diagram, actual discipline examples.

The course will go into element for the next key subjects:-

· Introduce the entire key ideas of a safety system, energy high quality, reliability, fault & occasion recording.

· Present the fundamental rules behind electrical safety philosophy

· Defined cascade tripping, Comtrade information, easy methods to localize the faults

· Have a look at step & contact potential idea, Voltage or Present which is deadly

· Why gravel is utilized in substation, defend gear & human

· Have a look at Earth Leakage Relay, The way it operates

· Perceive safety philosophy, A)Selectivity. B) Sensitivity. C) Pace. D) Reliability. E) Simplicity. D)Economic system.

· Relationship between selectivity and zones of safety. open & shut zones, tele safety

· Have a look at Main, backup & duplicate safety

· Have a look at relay classification, Electromechanical, Digital, Microprocessor & Numerical relays

· What are section & ration compensation in transformer differential safety, interposing C.Ts

· How Over Present, Earth fault relay operates

· How Course Overcurrent relay, Particular time & inverse time overcurrent relay operates.

· Perceive Magnitude, differential & section comparability rules

· have a look at the working precept of Breaker failure relay

· have a look at the fundamental electrical concept, Ohms Legislation, KVL, KCL, Calculate HV & LV rated & brief circuit present transformer

· Introduction to the per-unit system, easy methods to consider arc flash hazard utilizing the per-unit system

· have a look at three-phase programs, balanced, unbalanced, three-phase fault, section to section fault, section to floor fault

· Perceive Symmetrical elements

· Have a look at main & secondary gear, electrical wiring fundamentals

· Perceive Auxiliary relays, Principal relays, Contactors

· Distinction between Circuit Breaker & Isolator & Load Break Swap

· Perceive the idea of interlocking

· Perceive surge arrestor & surge counter

· have a look at GIS, AIF & MV SWGR

· Have a look at CB working cycle, pole discrepancy, anti pumping, journey circuit supervision schemes.

· Intro to ANSI gadget codes

· Introduction to inside, exterior & via faults

· Have a look at Capacitor Storage journey models

· Present batteries & charger, how they work, Single Line Diagram of DC system, Single Line Diagram of Charger

· have a look at LCC, Fuel diagram, Fuel compartment, Fuel permeable & Fuel tight

· introduction to Relay Coordination

· Have a look at full safety engineering cycle Design Section, Manufacturing Section, Cargo Section, Inspection, T&C, Upkeep

· Have a look at three-phase currents and see how they are often damaged down into sequence elements and harmonics.

· Present the fundamental rules behind present transformers, how they function and have to be linked

· Present how voltage transformers function and introduce the important thing sorts

· Go into element on what occurs when a fault happens on the system

· Look into circuit breaker management and safety programs and the way they work together with the safety programs.

· The principle safety relay we’ll have a look at on this course is over safety. We go into element on the fundamental and extra superior variations and present how this relay may be put to good use to offer nice fault discrimination

· Have a look at the several types of earth fault relays and see how they can be utilized to guard some key equipments

By the tip of the course, the scholar will have the ability to determine the entire key elements of a safety & management system, perceive how all of those elements match collectively to create a completely built-in system, safety basic idea, safety schemes & relays, battery charger & batteries.

Keep in mind that Udemy presents a 30-day money-back assure. I’m additionally at all times obtainable for questions whilst you undergo the course to make sure the whole lot is obvious.

See you within the course!

Who this course is for:

  • Electrical Engineering Undergraduates
  • Electrical Engineering Graduates
  • Technicians
  • Energy/Utility Engineer
  • Anybody all for electrical engineering

Course content material

25 sections • 86 lectures • 8h 56m whole size
  • Introduction
  • Safety Philosophy
  • Main and Secondary Equipments
  • Base Design, Element Design & Interlocking
  • GIS, LCC, Fuel Compartments
  • Safety System Parts
  • Understanding Burden
  • Safety Engineering Cycle
  • Zones of Safety
  • Main, Again up & Duplicate Safety
  • Communication Added Tripping Scheme
  • Components of Energy System
  • Relay Classification
  • Stage Detection Relays, Over Present & Earth Fault Relays
  • Magnitude, Differential & Section Angle Comparability Relays
  • Breaker Failure & Busbar Safety
  • Elements Influencing Relay Efficiency
  • Primary Electrical Idea, Phasors, Symmetrical Parts, Per Unit System, Arc
  • Present and Voltage Transformers
  • Batteries, Charger, DC System
  • Breaker Journey System When DC provide fail
  • Relay put in at totally different safety and relay gadget Code / ANSI code
  • Circuit Breaker
  • ACDB
  • Final Phrases
Created by: Muhammad Kashif,  ENGINEER
Final up to date 4/2021
English [Auto]
Direct Obtain Accessible
Sizzling & New
Ranking: 5.Zero out of 5
(5 rankings)
62 college students

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