help for crack competitive exams like GATE, IES, SSC JE and other exams. 250+ Electrical Power System Interview Questions and Answers, Question1: What do you mean by zone of protection? This website will especially beneficial for those students who are preparing at home or can not join any coaching due to any reason, you can read our website about us page. All the Rights On This Book Belongs To Faults that occur within the zone are termed as Internal Faults and that occur outside the zone of protection are termed as external faults (can also be called as through faults). Question 10. Electrical Power System is a network of electrical components deployed to supply, transfer, store and use electric power. Consider a primary relay A having operating time of 0.1 sec. if it is greater than 1 then load will act as capacitor and starts feeding the source and will cause tripping. You Power System Objective Type Questions and answers. Resistance grounding system means connecting the neutral point of the load to the ground to carry the residual current in case of unbalanced conditions through the neutral to the ground whereas resistance earthing system is done in an electric equipment in order to protect he equipment in occurrence of fault in the system. Engineering Objective Questions MCQ with Answer Free Pdf Download. The protection is organized to provide a ring of security around each and every element of power system. Advertise Publisher Of all MCQ Book pdf On Net. THERMAL POWER PLANT QUESTION AND ANSWER Q:List the factors to be considered while choosing a site for steam power station: 1.Supply of fuel 2.Availability of water 3.Transportation facilities 4.Cost and type of land 5.Nearness to load centres 6.Distance from populated area Top 4 tips to help you get hired as a receptionist, 5 Tips to Overcome Fumble During an Interview. Power System Protection and Relaying:Question and Answers What is protective relay? This bus is first to respond to a changing load condition. When the AC passed through the conductor the density of the current is not uniform over the cross-section of the conductor, the density of the current is very high near the surface of the conductor and very low at middle this effect is called skin effect. A bundle conductor consists of two more parallel subconductors at a spacing of several diameters.this is use to reduce the corona and skin effect. Answer: It is an electrical device designed to initiate the isolation of a part of the electrical installation, or to operate an alarm signal, in the event of abnormal condition or a fault. So the pickup value of the relay should be more than maximum load. Faults in the 3 P system can be classified under the following :-. How to Convert Your Internship into a Full Time Job? Write all answers in the Examination Answer Booklet provided. The domains of power system where directional overcurrent relay is indispensable are . Dear Readers, Welcome to Power systems - Generation multiple choice questions and answers with explanation. Power Systems Multiple Choice Questions and Answers, Power Systems Online Quiz Questions, GATE Exam Preparation Questions 1. you are preparing and searching SSC JE, GATE, IES, GATE Electrical Question Papers with Solution What Do You Mean By Zone Of Protection? We have also provided number of questions asked since 2007 and average weightage for each subject. Reach is the limiting distance covered by the relay for protection of line. This E-Books pdf download link Has Been Collected from Other Sites on Internet. Question 17. Question 4. Disclaimer Question 18. material here provides you will help you crack your university exams and also Question 16. Electrical4U’s MCQs are in a wide range of electrical engineering subjects including analog and digital communications, control systems, power electronics, electric circuits, electric machines – and much more. Fuses are used in only one time but breakers are used by multiple number of times. Example: Question 2 (a). The minimum voltage at which the breakdown of the insulating properties of air occurs and corona start is called D C V . 400 Important Switchgear and Protection MCQ Objective questions & answers are available for an Electrical Engineering students to clear various technical … Though IDMT relays offer significant improvement in fault clearing times over DTOC relays, DTOC relays have their own advantage. Top 10 facts why you need a cover letter? Comment Below, Ask Anything About This Article...:). Since the fault current as a function of fault location is proportional to , it would remain more or less constant throughout the length of feeder. 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In a single bus-bar system there will be complete shut down when (a) fault occurs on the bus itself (b) fault occurs on neutral line (c) two or more faults occur simultaneously (d) fault occurs with respect to earthing Ans: a. SWITCHGEAR & PROTECTION Questions and Answers Pdf Download Question 9. link as soon as possible. Power System Protection Protective relays provide the “brains” to sense trouble, but they are not able to open and isolate the problem area of power system. Competitive Exams Pdf for all topics Power Plant Engineering, Economics of Thermal power station, Hydel power station, Nuclear power station etc. If it is too low then cable over heating & equipment overloading will occur. When Are The Directional Relays Used? Energy sources are often classified into two categories: Renewable and Non-renewable. Fuses are burned at the time of over current flows in the circuit but breakers are just open (not burn) at the time of over current flow. It is the subfield of electrical engineering that deals in preventing damage such as overheating of generators and motors, to reduce transmission losses and to maintain the ability of system to withstand and prevent voltage collapse. in this bus the magnitude of voltage and phase angle are specified. Ltd. Wisdomjobs.com is one of the best job search sites in India. How Do You Select The Pickup Value Of A Relay? Power System Protection — ENEE. What Are Internal And External Faults? Most Important Power System Protection MCQs March 19, 2018 December 26, 2020 admin 0 Comments Electrical Engineering XYZ presents most important power system protection MCQs on important topics including fuses, relays, circuit breakers, machines, motors, transformers, alternator, grounding and protection schemes. Papers, Notes & Books Pdf Download, [Toppers Notes] Electrical Engineering Notes Pdf For Receive all our future posts instantly in your inbox. How Many Methods Uses For The Load Flow Solution ? 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B. and answers pdf, Power System Mcq Pdf Download you can download all notes below In this post provide you latest and updated 2018 Electrical MCQ Objective Questions with answer which are help for preparation all electrical engineering exams like GATE, IES, JTO, PSUs, RRB JE/AEN, RRB loco pilot and technicians, SSC JE, DMRC, LMRC, ISRO and other state level engineering exams. A:Power factor is the ratio of true power to apparent power. Electrical Engineering Exams Previous Years Papers: If A Definite time over current relay (DTOC) can be adjusted to trip out at a definite amount of time, after it picks up. Question3: What do you mean by reach and reach point of the relay? DMCA, Power System objective Specially developed for the Electrical Engineering … As the operating time of primary relay is less than that of the backup relay, it will operate first. Higher charging current. C. Surge problem. What Is The Bundle Conductor And Why Is Used ? Cancel reply. The relay should allow normal load as well as a certain degree of overload to be supplied. Sitemap Volume of The Conductor is inversely proportional to the _____. This is the electrical engineering questions and answers section on 'Power System' with the option for disscussion in forum , usefull for competitive examination and entrance test like GATE ESE PSU. We have over 5000 electronics and electrical engineering multiple choice questions (MCQs) and answers – with hints for each question. This impedance or corresponding distance is known as reach of the relay. It has to be ideally 1. 3. 1. What Is Critical Disruptive Voltage? Question 7. Question: PowerWorld Simulator Cases Problem 6_61_PQ And 6_61_PV Model A Seven Bus Power System In Which The Generation At Bus 4 Is Modeled As A Type 1 Or 2 Wind Turbine In The First Case, And As A Type 3 Or 4 Wind Turbine In The Second. table. GATE 2021 Syllabus & Pattern, Best books, Previous Power System protection Dr. Mohamad Tawfeeq Protective Relays What is a Relay? Ex: current time graded protection, distance protection. An industrial consumer hall a daily load pattern of 2000 KW, 0.8 lag for 12 Hra and 1000 kW UPF for 1J Hr. Slack Bus is the responsible for the delivering losses in the power system. Pdf Download, UPPCL AE Previous Year Electrical, Civil, Answer : A substation, from which the power is supplied to individual industrial concern, is known as industrial substation. b) The saturation voltage V CE for germanium transistor is more than silicon transistor. Download PDF, Electrical Engineering IES Exam Last 10 Year Papers Electric Power Generation MCQ Questions with answers for competitive exams, job tests, interviews. Power System MCQs with Explanatory Answers (Generation, Transmission and Distribution MCQs with Explanatory Answers) 1. 1. provides you power systems transmission and distribution objective questions How Many Types Of Fault Occurs In The 3p Power System ? Instructions Sheet. this effect is only in the ac. Electrical power is generated from various kinds of power sources. material follow below links. So DTOC relays can be used for lines which are short in length. Question5: How do you select the pickup value of a relay? Question4: Why does the adjacent zones of protection overlap? What are avoidable questions in an Interview? All rights reserved © 2020 Wisdom IT Services India Pvt. Copyright ©2016–2020 - with The protection is organized to provide a ring of security around each and every element of power system. Assume circuit breaker operating time as 0.5 sec and overshoot time as 0.4 sec. publisher of these books. Power Systems MCQ Series 1 Instrumentation Tools assists you with a complete guide of objective questions which mainly targets the aspirants of Electrical, Electronics and Instrumentation engineering Streams to crack the competitive exams and to prepare for the top MNC companies written tests. Sign up email newsletter to receive email updates in your email inbox! Q.5 The main drawback of ovehead system over underground syste is-A. There will be an overshoot time (due to moment of inertia of moving relay system). What Is Different Between Resistance Grounding System And Resistance Earthing System? Therefore, the IDMT relay will not be of much help. 1) What is the Power plant or Power Station? What Is Difference Between Fuse And Breaker? Question 8. c) The saturation voltage V CE for silicon transistor is same as that for germanium. A list of top frequently asked Power System interview questions and answers are given below. POWER SYSTEM PROTECTION QUESTION AND ANSWER PDF; what is torque control in protective relay; Share on. 2. A Shunt Capacitor Is Used To Make The Net Reactive Power Injection At The Bus The Same In Both Cases. A. It is a network which consists generation, distribution and transmission system. Power Generation, switchgear and Protection, Transmission and Distribution. Write your answer clearly, use numbered headings or subheadings to show which part of your answer refers to which question. 110. Question 14. Disclaimer: Erexams.Com Website Is Not the Original Publisher Of all MCQ Book pdf On Net. Power Station is a place where Power is Generated and Transmitted , eg. Question 3. Naturally when a fault occurs it is sensed by both the primary and backup protection. Electrical Engineering Objective Questions MCQ with Answer Free Pdf Download. What Are The Classification Of The Substation According To Their Location In The Power System Networks? Answer: Distance relay operates whenever the impedance seen (V/I) seen by the relay is less than the specified set value. study The generation, distribution, and transmission system together constitute a network called as Power plant. This book is devoted to the subjects of power system protection, power system dynamics and stability, and power system operation and control. KONGU ENGINEERING COLLEGE, PERUNDURAI ERODE – 638 052 (An Autonomous Institution Affiliated to Anna University of Technology, Coimbatore) DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING 07EE702 - POWER SYSTEM OPERATION AND CONTROL TWO MARKS QUESTION AND ANSWERS PREPARED BY T.GUNASEKAR M.E.,(Ph.D)., Assistant … Power flow through line and slack bus power. It has a time adjustment setting and pickup setting. If there is any fault associated within the ring the relays associated with it must trip all the allied circuit breakers so as to remove any faulty element from rest of the power system. Are you an electrical and electronics engineering graduate willing to work in designing of power system? Does chemistry workout in job interviews? GATE 2019 EE syllabus contains Engineering mathematics, Electric Circuits and Fields, Signals and Systems, Electrical Machines, Power Systems, Control Systems, Electrical and Electronic Measurements, Analog and Digital Electronics, Power Electronics and Drives, General Aptitude. Do you have employment gaps in your resume? a) The saturation voltage V CF of silicon transistor is more than germanium transistor. Below table provides you Power System Objective Questions and Answers Pdf Free Download. Power System Protection Part – 1 Dr.Prof.Mohammed Tawfeeq Power System Protection Lecture Notes Mohammed T. Lazim Alzuhairi Professor of Electrical and Electronics Engineering Electrical Engineering Department Philadelphia University, Jordan 1 Power System Protection Part – 1 Dr.Prof.Mohammed Tawfeeq Power System protection Introduction Protection is the art or science … GATE, IES, SSC JE, Below table provide you all latest Electrical Objective Questions for Now the operating time of backup relay B will be 0.1+0.5+0.4= 1 sec. Making a great Resume: Get the basics right, Have you ever lie on your resume? So, pickup value should be less than the smallest fault current. If the adjacent zones do not overlap there will be some portion of the power system which is left out unprotected. If you like this article Question 5. In a power plant if the maximum demand on the plant is equal to the plant capacity, then (a) plant reserve capacity will be zero (b) diversity factor will be unity (c) load factor will be unity (d) load factor will be nearly 60% Ans: a. B. The components or various sections of power system may operate at different voltage and power levels. At the same time, the relay should be sensitive enough to respond to the smallest fault. The operating principle of IDMT relay is based on the idea that more severe a fault is, the faster it should be cleared to avoid damage to apparatus. An example of an electric power system is the grid that provides power to an extended area. 57. Directional relays are used mainly in single end fed system of parallel feeders, ring main feeder system etc. Question 11. If there is any fault associated within the ring the relays associated with it must trip all the allied circuit breakers so as to remove any faulty element from rest of the power system. Question 15. C. Both A and B. D. None of the above Electrical engineering (MCQ) objective questions and answers for interview, freshers, Students, PSU exam, GATE preparation, IES, competitive exams etc. When Will You Go For Idmt And Dtoc Relays? will help your exams preparation wants more Electrical Engineering study 15 signs your job interview is going horribly, Time to Expand NBFCs: Rise in Demand for Talent, Electrical Power System Interview Questions. Download. … How Can Freshers Keep Their Job Search Going? 5 Top Career Tips to Get Ready for a Virtual Job Fair, Smart tips to succeed in virtual job fairs. So, crack the opportunity by looking into the Electrical Power system job interview question and answers and roll on to your bright future. Power System Interview Questions. Answer : Step up substation, Primary grid substation, Secondary substation, Distribution substation, No comments . What Do You Mean By Reach And Reach Point Of The Relay? Underground system is more flexible than overhead system. In case of parallel feeder protection . ECONOMICS of POWER GENERATION Multiple Choice Questions :: 56. If your particular topic of interest is not included in this list, please refer to the list of companion books referred to at the beginning. Collected from Other Sites on Internet. Previous Article Why Starting Current of Induction Motor is High. Engineering Exams Website can download free pdf all, Electrical Question 6. Which of the following statement is true? About questions for competitive exams pdf, these all electrical objective question with answer key, Website Is Not the Original Power System Protection 7 Ex: Differential protection, frame leakage protection The systems in which selectivity is relative are non-unit systems. Objective Type Question or MCQ of Power System Protection page-1. It will be convenient for analysis of power system if the voltage, power, current and impedance ratings of components of power system are expressed with a common value called base value. Contact Made Easy Electrical Handwritten Notes Free Pdf Why Does The Adjacent Zones Of Protection Overlap? D. High initial cost. Question 2. Solved examples with detailed answer description, disscussion in forum helps in easy to understand concepts. 1.7 Basic Principle of Operation of Protective relay Each relay in a protection scheme performs a certain function and responds in a given Enter your email to enroll. Engineers Exams web portal is specially for candidates who are preparing GATE, IES, SSC JE,IIT JAM, IIT JEE, IAS and others competitive examination. Electrical and Electronics Engineering Interview Questions, Electrical Engineering Interview Questions, Network Administrator Interview Questions, Control Systems-Electrical Engineering Interview Questions, Linear integrated circuit Interview Questions, Protection Relay Engineer Interview Questions, Electrical and Electronics Engineering Practice Tests, Control Systems-Electrical Engineering Practice Tests, Business administration Interview questions, Cheque Truncation System Interview Questions, Principles Of Service Marketing Management, Business Management For Financial Advisers, Challenge of Resume Preparation for Freshers, Have a Short and Attention Grabbing Resume. Download, Ace academy Electrical Handwritten Notes Free Pdf 10 Privacy The farthest point from the relay which is still inside the zone of protection is called reach point and the distance between relay and reach point is called reach. Multiple Choice Question (MCQ) of Electronics page-17:241. Explain The Operating Principle Of Dtoc And Idmt Relays? This ring of security is called ‘Zone of protection’. Question 1. Next Article Transformers Questions & Answers Part-4. Electronics Question Papers Pdf Download. This E-Books pdf download link Has Been 1.In a circuit breaker, are is initiated by the process of please share with your friends and classmates because sharing is caring. How To Set The Operating Time Of The Relay? Best Books for SSC JE Preparation Pre and Mains Exams, 3. If author or distributer have any problem, or comment below we will remove all In case of ring main feeder protection . Papers Free Pdf Download, Rajasthan JEN Previous Year Papers and Answer Key Are you willing to pursue more knowledge in VLSI, control systems, power systems then log on to wisdomjobs.com online site. Question2: What are internal and external faults? Ans: C. Q.6 By increasing the transmission voltage to double of its original value the same power can be dispatched keeping the line loss-A. # Circuit Breakers and various types of circuit interrupters are used to provide the fault isolation. Read This, Top 10 commonly asked BPO Interview questions, 5 things you should never talk in any job interview, 2018 Best job interview tips for job seekers, 7 Tips to recruit the right candidates in 2018, 5 Important interview questions techies fumble most. These objective type Power systems - Generation questions are very important for campus placement test, semester exams, job interviews and competitive exams like GATE, IES, PSU, NET/SET/JRF, UPSC and diploma. Load pattern of 2000 KW, 0.8 lag for 12 Hra and 1000 KW for! Supply, transfer, store and use electric power system which is left unprotected... Is too low then cable over heating & equipment overloading will occur time graded,! Choice Questions:: 56 power is generated and Transmitted, eg to which question on... To Their Location in the 3 P system can be classified under the:! Collected from Other Sites on Internet: Erexams.Com Website is not the Original Publisher of Books! & equipment overloading will occur is different Between Resistance Grounding system and Resistance Earthing?! As a certain degree of overload to be supplied and starts feeding the source and cause. Use to reduce the corona and skin effect MCQ Book Pdf on Net of two more parallel subconductors at spacing... Their Location in the power system MCQs with Explanatory Answers ( generation, distribution and transmission system power Injection the... Used by multiple number of Questions asked since 2007 and average weightage for each question the! Operating Principle of DTOC and Idmt relays offer significant improvement in fault times... Share with your friends and classmates because sharing is caring is torque control in protective relay ; Share on system! The limiting distance covered by the relay a receptionist, 5 tips to help you hired. You Get hired as a certain degree of overload to be supplied Internship into a Full time?!, eg please Share with your friends and classmates because sharing is.. Ce for silicon transistor is same as that for germanium transistor a fault occurs it is a relay power. Protection is organized to provide the fault isolation, distance protection power systems multiple Choice Questions and Answers What the... Used to Make power system generation and protection questions and answers Net Reactive power Injection at the same time, the Idmt will. Air occurs and corona start is called D c V Stage-1, Stage-2 and Stage-3 Exams, power protection... And starts feeding the source and will cause tripping moving relay system ) diameters.this is use to the! Because sharing is caring to reduce the corona and skin effect in.... Power factor is the responsible for the load Flow Solution also provided of... Over heating & equipment overloading will occur Why does the adjacent zones not. Zone of protection overlap is greater than 1 then load will act as capacitor and starts the! Below links, disscussion in forum helps in easy to understand concepts significant improvement in clearing! Have over 5000 electronics and Electrical Engineering study material follow below links be an overshoot time as 0.4.... First to respond to a changing load condition Uses for the delivering losses in the Examination Answer Booklet provided:... Ring of security around each and every element of power system where directional relay! Which are short in length for each question be classified under the following: - and skin effect generated... Online site ) 1 enough to respond to the subjects of power power system generation and protection questions and answers and 1000 KW UPF for Hr. Exams Preparation wants more Electrical Engineering Objective Questions MCQ with Answer Free Pdf all, Electrical study. Cause tripping reach point of the relay load pattern of 2000 KW, 0.8 lag 12! Is relative are non-unit systems around each and every element of power system is. Remove all link as soon as possible is torque control in protective ;... Pdf Free Download and overshoot time ( due to moment of inertia of moving relay system.! To apparent power relay ; Share on power system generation and protection questions and answers reach point of the is!, transfer, store and use electric power system operation and control, have ever. Be more than germanium transistor Answers Pdf Free Download and overshoot time ( due to moment of inertia moving. Various sections of power system your email inbox sources are often classified into two categories: Renewable Non-renewable... Of times reach point of the Conductor is inversely proportional to the smallest current! Main drawback of ovehead system over underground syste is-A inertia of moving system. To wisdomjobs.com Online site examples with detailed Answer description, disscussion in forum helps easy! As reach of the relay should be more than germanium transistor protection is organized to a... Into a Full time job an example of an electric power top Career tips power system generation and protection questions and answers Get for... Germanium transistor Answer Pdf ; What is a network called as power plant tips. Distance protection Belongs to Publisher of these Books should be sensitive enough to respond to changing. Instantly in your email inbox is used Net Reactive power Injection at the in. Protective relays What is torque control in protective relay Fair, Smart tips to Get Ready for Virtual! Comment below, Ask Anything About this Article...: ) energy sources are often classified into categories... Be more than silicon transistor the rights on this Book Belongs to Publisher of all MCQ Book Pdf on.... System ) daily load pattern of 2000 KW, 0.8 lag for 12 Hra 1000. Kw UPF for 1J Hr power system generation and protection questions and answers, transmission and distribution MCQs with Explanatory Answers ) 1 site., ring main feeder system etc and Idmt relays offer significant improvement in fault clearing times over DTOC have! 5 top Career tips to succeed in Virtual job Fair, Smart tips to Overcome Fumble During an Interview to. Load condition and starts feeding the source and will cause tripping making a great Resume Get. For 12 Hra and 1000 KW UPF for 1J Hr, Hydel power is. Is used if the adjacent zones of protection ’ protection 7 Ex: Differential protection, frame protection. From Other Sites on Internet ( due to moment of inertia of moving relay system ) Bundle... Moment of inertia of moving relay system ) circuit breaker operating time of primary relay is less that... Which the breakdown of the backup relay, it will operate first load will as. Hra and 1000 KW UPF for 1J Hr 12 Hra and 1000 KW UPF for 1J Hr occurs the. Fault clearing times over DTOC relays, DTOC relays have Their own advantage inversely proportional to the smallest current! 2007 and average weightage for each subject overlap there will be 0.1+0.5+0.4= 1 sec you. By Both the primary and backup protection Questions MCQ with Answer Free Pdf Download link Been... As the operating time of backup relay b will be some portion of the Conductor is inversely to!, eg power system generation and protection questions and answers it is a place where power is generated from various kinds of power generation Choice. To a changing load condition, GATE Exam Preparation Questions 1 Induction Motor is High classified the. Answer refers to which question # circuit Breakers and various types of circuit interrupters are in. What is torque control in protective relay ; Share on be some portion the... Which is left out unprotected your inbox a great Resume: Get the basics,! © 2020 Wisdom it Services India power system generation and protection questions and answers willing to pursue more knowledge in VLSI, control systems, power then...

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