MP4 | Video: h264, 1280x720 | Audio: AAC, 44.1 KHz, 2 Ch
Genre: eLearning | Language: English + srt | Duration: 86 lectures (8h 39m) | Size: 2.57 GB
This course introduces electrical engineering about Substation power system protection with field examples.
Introduction to Protection Philosphy
Going through history of power system network
Advantages & Disadvantages of Power Network
Introduce to concept of SCADA, Smart Metering, Micro Grid
Introduction to Cascade Faults in network
How Power Quality of Network is assessed
Briefing on Flase Tripping due to poor relay coordination
What is meaning of localization of fault
What are Fault & Even Records
Fault investigation
What is Comtrade file
Synch & Auto Reclosing, Power Swing
What is required to protect
Step & Touch Potential Hazards
Lighting Protection Explained
What is purpose of protection
Step Potential Hazard near fallen conductor
Reason of Massive Blackouts and how to avoid them
How to Limit damage
Why Gravel is laid in AIS
Voltage or Current Which is lethal
Introduction to earth leakage Relay
Protection System Characteristics Selectivity. Sensitivity. Speed. Reliability. Simplicity. Economy.
Relationship of Sensitivity and relay burden
Which relay have more buden 1 Amp of 5 Amp?
Identify what primary, secondary and control equipments are
Difference among Circuit Breaker, Isolator & Load Break Switch
System Primary Components, 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 / Detail Drawings
Introduction to Interlock Logic Diagram
Explained GIS, LCC, Gas Diagram, Gas compartment
Explained basic components Harting Plug, terminal block Din Rail
Auxiliary Relays and its type
Magnetic Contactors
Main Relays & Protection Panels
What is Burden and how to find relay rated burden
Engineering Design Phase intro
Manufacturing & Delivery Phase intro
Installation Testing & Commissioning Phase
Maintenance Phase , concept of life cycle cost, Maintenance cost
What are Zones of Protection, Zone Over lapping, Primary & Backup protection, duplicate protection
Feeder, motor, Generator & Line protection Zone by example
Understand Selectivity & Zones of protection
How Zones help to localize the fault
What is meaning of close & open zone
Tele Protection , Backup protection at local & Remote loaction
Understanding how different elements of Protection system operates
Classification of Relays
Electromechnical , Digital , Microprocessor based & Numerical Relays
Attracted Armature Type, Plunger Type, Induction Disk type, Induction cup type, D´Arsonval unit, Thermal Relays
Interposing C.T , Phase & Ration Compensation requirements for transformer differential protection
Intro to Sensor, SF6 Gauges, Winding & Oil Temperature Gauges, Pressure relief device, sudden pressure device, Buchholz Relays
Introduction to definite time and inverse time Over Current Relays
Introduction to Directional Over Current Relays
Introduction to Magnitude & Differential Protection
What are phase comparison relays and how they operate
Introduction to breaker fail & busbar protection
Factors Influencing Relay Performance
Basic Electrical Theory, Ohm's Law, Kirchhoff's Current Law, Kirchhoff's Voltage Law, Per unit System
How to calculate three phase power, rated primary and secondary current of Power transformer
How to calculate short circuit MVA, short circuit HV & LV current of transformer
Calculate Arc flash Hazard of transformer
Understanding Phases, Balance & Unbalance System, Three Phase, Phase to Phase & Single Phase Faults
Understanding Symmetrical Components
Current Transformer, Types, polarity, Saturation, ratio, error of C.T, Metering & Protection Core, Knee Point, Burden
Why C.T should never be open circuited, Why C.T secondary is grounded, Why Single point earthing is done.
What is star point towards line and bus means
Understand Accuracy limit factor & Name plate of C.T, Classes of C.T
Voltage transformer & its type, Error in voltage transformer, what is CCVT,
Ferro Damping & Compensating Reactor in CCVT, Why V.T secondary is grounded, Why Single point earthing is done.
Metering & Protection Core of V.T, Accuracy class, How to connect V.T secondary, Star & Open delta connections
Voltage Drop in V.T circuit, Voltage Factor, Ferro-Resonance in Magnetic Voltage Transformer
Substation Batteries, Why Batteries are required, types of batteries
How to measure capacity of Battery, What mean by AH, Specific gravity, Hydro Meter, Voltage per Cell & per bank
Explained DC system Single Line Diagram , How to do Maintenance of Batterries
Battery Charger, What is charger scheme in substation, Dropping Diodes, Terminal voltage, Float Boast & Trickle Charging,
Understanding Single Line Diagram of Charger
Ground of DC System, Why it is required, How it is done, DC Earthing problem in substation
What are capacitor storage trip units
Introduction to ANSI device numbers
Relays Application for Feeder, Generator, Motor, transformer, busbar. Which type of protection relays are installed
Concept of internal, external & through fault
Why transformer differential is different from Busbar differential
Introduction to Circuit Breaker, types of circuit breaker, . Bulk oil circuit-breaker B. Minimum oil circuit-breaker C. Air blast circuit-breaker D. Vacuum circuit-breaker E. SF6 circuit-breaker F. HVDC circuit-breaker
Understand Circuit Breaker Operating Cycle
Circuit Breaker, Anti pumping, Pole discrepancy, Trip Circuit Supervision Schems
Identify what primary, secondary and control equipments are
Explain how an over current & earth fault relay operates
Explain how the currents and voltages vary during all three phase fault conditions
Draw what an electrical protection system looks like
Equip a protection panel and identify all of the main equipments
Understand the requirements for a current transformer
Requirements
The basic electrical principles
A basic understanding of electrical engineering
Description
Protection & control systems are a critical part of the transmission & distribution systems that feed power to mega cities & industries.
The aim of this course is to introduce all of the basic principles associated with electrical power systems protection with examples.
I have try my best to include practical example from the filed as I have 17 years of field experience in substations. I have included real examples, equipment name plate, Single line diagram, real field examples.
The course will go into detail for the following key topics :-
Introduce all of the key concepts of protection system, power quality, reliability, fault & event recording.
Show the basic principles behind electrical protection philosophy
Explained cascade tripping, Comtrade files, how to localize the faults
Look at step & touch potential concept, Voltage or Current which is lethal
Why gravel is used in substation, How to protect equipment & human
Look at Earth Leakage Relay, How it operates
Understand protection philosophy, A)Selectivity. B) Sensitivity. C) Speed. D) Reliability. E) Simplicity. D)Economy.
Relationship between selectivity and zones of protection. open & close zones, tele protection
Look at Primary, backup & duplicate protection
Look at relay classification, Electromechanical, Digital, Microprocessor & Numerical relays
What are phase & ration compensation in transformer differential protection, interposing C.Ts
How Over Current , Earth fault relay operates
How Direction Over current relay, Definite time & inverse time over current relay operates.
Understand Magnitude, differential & phase comparison principles
look at working principal of Breaker failure relay
look at basic electrical theory, Ohms Law, KVL, KCL, Calculate HV & LV rated & short circuit current transformer
Introduction to per unit system, how to evaluate arc flash hazard using per unit system
look at three phase systems, balanced, unbalanced, three phase fault, phase to phase fault, phase to ground fault
Understand Symmetrical components
Look at primary & secondary equipment
Understand Auxiliary relays, Main relays, Contactors
Difference between Circuit Breaker & Isolator & Load Break Switch
Understand concept of interlocking
Understand surge arrestor & surge counter
look at GIS, AIF & MV SWGR
Look at CB operating cycle, pole discrepancy, anti pumping, trip circuit supervision schemes.
Intro to ANSI device codes
Introduction to internal, external & through faults
Look at Capacitor Storage trip units
Show batteries & charger, how they work, Single Line Diagram of DC system, Single Line Diagram of Charger
look at LCC, Gas diagram, Gas compartment, Gas permeable & Gas tight
introduction to Relay Coordination
Look at complete protection engineering cycle Design Phase, Manufacturing Phase, Shipment Phase, Inspection , T&C, Maintenance
Look at three phase currents and see how they can be broken down into sequence components and harmonics.
Provide the basic principles behind current transformers, how they operate and need to be connected
Show how voltage transformers operate and introduce the key types
Go into detail on what happens when a fault occurs on the system
Look into circuit breaker control and protection systems and how they interact with the protection systems.
The main protection relay we will look at on this course is over protection. We go into detail on the basic and more advanced versions and show how this relay can be put to good use to provide great fault discrimination
Look at the different types of earth fault relays and see how they can be used to protect some key equipment\s
By the end of the course the student will be able to identify all of the key components of a protection & control system, understand how all of these components fit together to create a fully integrated system, protection fundamental concept, protection schemes & relays, battery charger & batteries.
By the end of the course the student will be able to
Remember that Udemy offers a 30-day money-back guarantee. I am also always available for questions while you go through the course to ensure everything is clear.
See you in the course!
Who this course is for
Electrical Engineering Undergraduates
Electrical Engineering Graduates
Technicians
Power/Utility Engineer
Anyone interested in electrical engineering
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