Download fundamentals of power system protection by y. The ip code is a coding system to indicate protection index. Moharana, department of mechanical engineering, national institute of technology rourkela, rourkela. Nptel lectures power system protection and switchgear. Sunil s rao, switchgear protection and power systems, khanna publishers, new delhi, 11 th edition reprint 3 rd edition, 2008 references. Mechanical engineering local authors anna university books. Switchgear and protection topics covered introduction types of fault short circuit fault open circuit fault arrangement of protecting equipment lightning arrester capacitance voltage. It applies to enclosure of electrical equipments with a. Ee2402 protection and switchgear l t p c 3 0 0 3 unit i introduction 9 importance of protective schemes for electrical apparatus and power system. The relay opens the breaker to avoid damage to the equipment. Download protection and switchgear by u a bakshi and m v bakshi pdf.
Its through such a system that homes and industries in a region receive power. Describe necessity of apparatus and system protection. In an electric power system, switchgear is the combination of electrical disconnect switches, fuses or circuit breakers used to control, protect and isolate electrical equipment. Vinod john,department of electrical engineering,iisc bangalore. Impedance is inserted in the earthing lead to limit the magnitude of the earth fault current.
Electromechanical contracting company, founded in april 2002. The book offers a blend of application practices and theoretical concepts to comprehend the subject of power system protection. Pdf ee6702 protection and switchgear ps books, lecture. The neutral point of the generator is usually earthed, so as to facilitate the protection of the stator winding and associated system. Basics of materials engineering, mechanical engineering, prof. What are the functions of protective relays to detect the fault and initiate the operation of the circuit breaker to isolate the defective element from the rest of the system, thereby protecting the system from damages consequent to the fault. Electrical switchgear is consider as low voltage switchgear if it is rated upto a 400 v. To give adequate protection to the motor under all conditions. It is a special type of cb in which a mechanism is provided so that the contacts of the cb will open when there is a fault on the system and will automatically try to close after a short delay. The focus of the document is on electromechanical switchgear, however electronic devices used in lowvoltage engineering have also been included. The present technical manual is intended as an aid in project design and the application of lowvoltage switchgear and controlgear in switchgear assemblies and machine control.
Electrical engineering power system protection nptel. The idea of the protection is that when we have an overcurrent or overvoltage, a relay will notice it and react. It is a general term covering a wide range of equipment concerned with switching and protection. Sep 02, 2014 latest switchgear protections questions and answers list 1. Introduction electrical energy management system ensures supply of energy to every customers at all time at rated voltage, rated frequency and specified waveform. Lecture notes on switchgear and protection devices for. Chander, power system protection and switchgear, wiley eastern ltd. Latest switchgear protections questions and answers list 1. Transformer dc machines induction machine power system power electronics analog electronics prof. Protection and switchgear by bakshi faadooengineers. Switchgear and protection textbook free download by bakshi. Latest economics of power generation electrical engineering objective type questions and answers pdf. Switch gear and protection textbook are one of the famous textbook for engineering students.
Bakshi explained every information neatly without any mistake. Switchgear is used both to deenergize equipment to allow work to be done and to clear faults downstream. Switchgear and protection switchgear and protection switchgear and protection switchgear and protection switchgear. Apply to electrical engineer, electrical designer, control panel technician and more. Electromagnetic relays electromechanical relays research began at the end of the 19th century the relay family was completed in the 1930s. Philosophy of protection, nature, causes and consequences of faults, zone of. Oct 08, 2017 switchgear and protection lecture 1 1. Switchgear protections objective type questions and answers pdf 61.
Download switchgear protection and power systems by sunil s rao pdf. Switchgear is a general term which uses to covers the switching device and its various combinations with some associated control, measuring all parameter, protective and regulating equipment, together with accessories, enclosures and supporting structures. Lec 01 introduction to power plant engineering youtube. Switchgear and protection electrical engineering mcq. Switchgear protections objective type questions and. Power system protection and switchgear, electrical engineering, prof. The focus of the document is on electromechanical switchgear, however electronic. Switchgear protections mcqs answers electrical engineering multiple choice questions answers pdf download. How to download switchgear protection and power systems by. Assembly of such devices in a logical manner forms switchgear.
Sgp 2170908 switch gear and protection list of text. To reverse the direction of rotation when required. Inspection, testing and commissioning of electrical. Switchgear and protection introduction power system. Protection and switchgear lecture notes authorstream. Switchgear and protection summary in an electric power system, switchgear is the combination of electrical disconnect switches, fuses or circuit breakers used to control, protect and isolate electrical equipment. Apply to electrical engineer, mechanical engineer, field service engineer and more. Switchgear and protection lecture 1 linkedin slideshare. Nptel handwritten notes these notes has been made by me after watching nptel lectures given by various professor from different iits and iisc. Home category electrical engineering mcq questions and answers switchgear and protection. Switchgear engineering services ltd provide comprehensive, cost effective solutions for the switchgear industry. Discuss evolution of relays from electromechanical to numerical relay. Nptel video lectures, iit video lectures online, nptel youtube lectures, free video lectures, nptel online courses, youtube iit videos nptel courses. Protection engineering concerned with the design and operation.
Top 100 switchgear and protection interview questions. Switchgear and protection textbook free download switchgear and protection textbook by bakshi free download in pdf. Lecture notes on switchgear and protection devices for students. Power system protection video lecture study material in dvd and. Under frequency or over frequency of a generator may result in mechanical damage to its turbine requiring tripping of an alternator. Protection schemes have to be devised for these power systems, so that damage to life and property is reduced to a minimum in case of any.
This type of equipment is directly linked to the reliability of the electricity supply. Fundamentals of power system protection lecture 1 nptel. It applies to enclosure of electrical equipments with a rated voltage of less then or equal to 72. Bhide a power system is an electrical network responsible for supplying and transmitting power. Jan 08, 2018 switchgear is responsible to connect and disconnect the electric power supplies and systems. Apr 22, 2016 what are the functions of protective relays to detect the fault and initiate the operation of the circuit breaker to isolate the defective element from the rest of the system, thereby protecting the system from damages consequent to the fault. Engineering books pdf download free engineering books. Ee2402 protection and switchgear sasurie college of engineering. Apr 16, 2016 what are the main functions of control gear. Large internal faults are protected by a merz price percentage differential protection b mho and ohm relays c horn gaps and temperature relays d earth fault and positive sequence. Nptel, iit, lectures, courses, video, engineering, online.
Provides information about academic calendar, notices, gtu results, syllabus,gtu exams,gtu exam question papers,gtu colleges. In other words systems used for switching, controlling and. Contents of power system protection lecture, iit bombay. I have written only those lectures which i found important and which are in the gate syllabus. Mcqs on switchgear and protection how engineering works. The main function of a fuse is to a protect the line b open the circuit c protect the appliance d prevent excessive currents e none of the above ans. Engineering books pdf, download free books related to engineering and many more. Circuit breakers provide a manual means of energizing and deenergizing a circuit. Power system protection part power system protection. These notes has been made by me after watching nptel lectures given by various professor from different iits and iisc. It also includes all devices associated with control, metering and regulating of electrical power systems.
September 17 pdf higher engineering mathematics by b. I think this book is enough for engineering students who. Basics of software defined radios and practical applications. Pdf civil engineering books huge collections subject wise free download. Break of conductors wrong connections switch gear 12 insulation failure leakage of airoilgas mechanical defect. Switchgear and protection electrical engineering mcq questions and answers. Switchgear is responsible to connect and disconnect the electric power supplies and systems. Switchgear protections mcqs answers pdf electrical engg. Switchgear protection electrical engineering mcqs for android free download.
Power system protection part power system protection lecture. Nptel provides elearning through online web and video courses various streams. The circuit protection components of the switchboard are the masterpact nw circuit breakers in 8006000 a fr ame sizes, masterpact nt circuit breakers in 8001200 a frame sizes, and powerpact h, j, and d circuit breakers in 15600 a frame sizes. All equipment associated with fault clearing process are covered by the term switchgear.
Switchgear protection and power systems by sunil s rao. Fire protection, services and maintenance management of. Whenever a shortcircuit occurs, the current flowing through the coil increases to an enormous value. Lecture notes on power system engineering ii subject code. Mohammed tawfeeq 1 power system protection lecture notes mohammed t. To provide a means of starting and stopping the motor and, at the same time, of limiting the starting current if required. Ee8602 protection and switchgear lecture notes, books. Electric power system electricity is generated at a power plant 1 voltage is steppedup for transmission2 energy travels along a transmission line to the area where the power is needed 3 voltage is decreased or steppeddown at another substation 4 a distribution power line 5 carries that electricity until it reaches a home or business 6.
In other words systems used for switching, controlling and protecting the electrical power. Moharana, department of mechanical engineering, national institute of technology rourkela, rourkela 769008 odisha india. Download link is provided and students can download the anna university electrical and electronic engineering seventh semester syllabus question bank lecture notes syllabus part a 2 marks with answers part b 16 marks question bank with answer, all the materials are listed below for the students to make use of it and score good maximum marks with our study materials. The main function of a fuse is to a protect the line b open the circuit c protect the appliance d prevent excessive currents. We handle millions of customer transactions every year and proved ourselves as a provider of outstanding clientele experience. Switchgear and protection electrical engineering mcq questions and answers home category electrical engineering mcq questions and answers switchgear and protection 1 in the following figure, which component ensures the safety of the line from damage.
Design control and protection for medium voltage switchgear. To provide means of braking the motor when required. The protection index is the level of protection provided to by an enclosure against access to hazardous parts, the penetration of solid foreign bodies and of water. Switchgear and protective devices 2015 3 p a g e syllabus switchgear and protective devices 310 modulei 10 hours protective devices. Theoretical support and mathematical background is given in the text to support key concepts. Here you can find switchgear protection and power systems by sunil s rao a very nice book free download shared files. Jul 07, 2018 switchgear and protection topics covered introduction types of fault short circuit fault open circuit fault arrangement of protecting equipment lightning arrester capacitance voltage. Here you can find protection and switchgear by bakshi free download shared files.
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