Only two phase and one earth fault relay is required for complete protection of three phase line. Lecture notes on switchgear and protection devices for students generators which are directly connected to the transmission or distribution system are usually earthed through a resistance which will pass approximately rated current to a terminal earth fault. Pdf made easy machine design handwritten classroom notes for ies ias. Protection and switchgear ee6702 notes, question papers. Characteristics and functions of relays and protection schemes. Nptel lectures power system protection and switchgear. Protection and switchgear notes ee8602 pdf free download.
Chapter 15 of numerical protection and automation guide. Pdf ee6702 protection and switchgear ps books, lecture. Contents relay buchholz relay circuit breakers instrument transformer 3. For industrial applications, a transformer and switchgear lineup may be combined in one housing, called a unitized substation or uss. Switchgear and protection fuse, circuit breaker and. Link to paper reliable busbar and breaker failure protection with advanced zone selection this takes you to the sel web site, free registration may be required link to paper. During the operation of power system, it is often desirable and necessary to switch on or off the various circuits e.
The neutral point of the generator is usually earthed, so as to facilitate the protection of the stator winding and associated system. Switchgear and protection notes sgp notes sgp pdf notes fundamentals of power system protection by paithankar and s. Zones of protection by dividing the power system into protection zones the extent of disconnections can be limited. Jan 12, 2020 anna university ee8602 protection and switchgear notes are provided below. Scribd is the worlds largest social reading and publishing site. Distance protection is costly so far distribution network, electric utilities and on sub transmission lines over current protection. Apparatus protection, static and numerical relays functioning of circuit breaker. Depending on the nature of the system the substations may be required to accommodate mv andor lv switchgear, transformers and protective and control. Ee6702 protection and switchgear notes regulation 20 anna university free download. Cardenas, bus differential protection, 22nd annual western protective relaying conference. Ee 6702 notes syllabus all 5 units notes are uploaded here. A switch is a static device, which is use to open or close an electrical circuit in a convenient way. Jul 01, 2016 protection and switchgear lecture notes. The general layout of a protection system may be viewed as given in the following figure.
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. Pdf ee6702 protection and switchgear lecture notes, books. Ee6702 protection and switchgear syllabus notes question. Impedance is inserted in the earthing lead to limit the magnitude of the earth fault current. Ee8602 protection and switchgear syllabus notes question. Ee2402 protection and switchgear all 5 units lecture notes authorstream presentation. Anna university ee8602 protection and switchgear notes are provided below. Introduction to protection system and its elements, functions of protective relaying, protective zones, primary and backup protection, desirable qualities of protective relaying, basic terminology. Lecture notes on switchgear and protection devices for students. Power system protection college of engineering and. December 31 pdf design of steel structures by l negi book free download. Protection and switchgear lecture notes authorstream. 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.
Switchgear protection and power systems by sunil s rao. Lecture notes power system switchgear and protection be located in a building, with mediumvoltage circuit breakers for distribution circuits, along with metering, control, and protection equipment. If the area of xsection of the arc is reduced, the voltage necessary to maintain the arc is increased. Switchgear is used both to deenergize equipment to allow work to be done and to clear faults downstream. Introduction to protection system and its elements, functions of protective relaying, protective zones, primary and backup protection, desirable qualities of protective.
The ip code is a coding system to indicate protection index. Download ee6702 protection and switchgear lecture notes, books, syllabus parta 2 marks with answers ee6702 protection and switchgear important partb 16 marks questions, pdf books, question bank with answers key. Download link is provided and students can download the anna university ee6702 protection and switchgear ps 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. Question papers ee6702 qn papers download semester notes ee6702 uploaded by notes available. Protection and switchgear by bakshi faadooengineers. Pdf switchgear and protection pdf notes sgp notes 2019 sw. 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. Ee6702 notes protection and switchgear pdf free download. Switchgear and protection fuse, circuit breaker and relay. Ee8602 ps notes, protection and switchgear notes eee. Home technical articles mvlv power substations design and schematics notes.
Contents of power system protection lecture, iit bombay. Differential protection, frame leakage protection the systems in which selectivity is relative are nonunit systems. It is the ability of the protection system to operate correctly. Pdf ee6702 protection and switchgear lecture notes. How to download switchgear protection and power systems by. Ee8602 notes protection and switchgear to impart knowledge on the following topics causes of abnormal operating conditions faults, lightning and switching surges of the apparatus and system.
Sep 17, 20 over current protection though simple and economical, require readjustment if change in circuit condition occurs. Here you can find protection and switchgear by bakshi free download shared files. Read, highlight, and take notes, across web, tablet, and phone. Trending today pdf ee8301 electrical machines i emi books, lecture notes, 2. Pdf pdf of switchgear and protection pdf of switchgear and. Switchgear protection department of eee,aitstirupati page 5 3. Download protection and switchgear by u a bakshi and m. There are various types of switchgear and protection devices in power system. 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. Switchgear and protective devices 2015 8 p a g e risk of synchronous motors in large industrial premises falling out of step and tripping out. It also includes all devices associated with control, metering and regulating of electrical power systems.
Switchgear protection department of eee,aitstirupati page 2 circuit breaker unit i introduction. Ability to understand and analyze power system operation, stability, control and protection. Relay is a sensing device which senses abnormal voltage and current conditions in power system and sends signal to circuit breaker to. A relay that operates or picks up when its current exceeds a predetermined value setting value is called over current relay. Anna university regulation 2017 eee ee8602 ps notes, protection and switchgear lecture handwritten notes for all 5 units are provided below. Assembly of such devices in a logical manner forms switchgear. Protective relays and relaying system detect abnormal conditions like faults in electric circuits and operate automatic switchgear to isolate faulty equipment from the system as quickly as possible. The nec also covers minimum requirements for special occupan cies including hazardous locations and special use type facilities such as healthcare facilities, places of.
See our further post also for detailed knowledge of these devices. In other words, the resistance of the arc path is increased. It is used for protection of element of a power system against phase faults. Lecture notes on switchgear and protection devices for. Download link for eee 6th sem protection and switchgear notes are listed down for students to make perfect utilization and score maximum marks with our study materials. Ee8602 notes protection and switchgear regulation 2017. Switchgear is used both to deenergize equipment to allow work to be done. Students are requested to make use of these study materials to prepare for their semester exams click here to share with your classmates. It is used for protection of element of a power system against earth faults. Elementary principles of arc interruption, recovery, restriking voltage and recovery voltages. In other words systems used for switching, controlling and. A switchgear is a generic term which includes all the switching devices associated with power system protection. Mvlv power substations design and schematics notes. Download protection and switchgear by u a bakshi and m v bakshi pdf.
Rao, switchgear and protection, khanna publishers, new delhi, 2008. Switchgear and protection pdf notes sgp pdf notes smartzworld. Anna university ee6702 protection and switchgear syllabus notes 2 marks with answer is provided below. Ee8602 protection and switchgear lecture notes, books. Ee6702 protection and switchgear notes regulation 20.
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