We will go on adding questions, till we reach 100 and may be we will add more than 100. 83. This is starting question and the interviewer will go in depth in each section. Using Fuse we can protect the power supply against over current. 1) What is / are the main disadvantage of using oil as the quenching medium in the circuit breakers? HR Interview Questions; Computer Glossary; Who is Who; Electrical Safety - Quick Guide. means according to ups VA it gives backup. Varuni Khosla & Brinda Dasgupta, ET Bureau Last Updated: Jun 11, 2016, 05:00 PM IST. Explore the latest questions and answers in Power System Planning, and find Power System Planning experts. A distribution transformer may have one primary and one divided or “Tapped” secondary, or two or more secondaries. Each year, ENR ranks the top 500 design firms in the United States based on annual revenues. Single end fed system of parallel feeders 3. The power system consists of a three-stage network – generation, distribution, and transmission. 3 Electrical machines and Power Systems 8 or 9 questions 4 Electronics 8 or 9 questions 5 Fundamentals of Communication 8 or 9 questions 6 Control System Fundamentals 8 or 9 questions Total 50 questions. In a computing text, it is referred to as protection against unauthorized access. Cybersecurity refers to the protection of internet-connected systems such as software, hardware, electronic data, etc., from cyber attacks. What is a System? POWER ranks among nation’s top design firms Leading industry magazine Engineering News-Record has ranked POWER Engineers Incorporated (POWER) among the top 100 engineering design firms in the country for the 15th year in a row. Need periodical replacement. We have planned to give you 100 Interview Questions on Power Transformer. BPO & … It has to be ideally … These questions are basics and any candidate should possess basic knowledge of these aspects. Answer: Eletro-mechanical relays operate by two principles. A SIMPLE explanation of an Electrical Power System. How can you relate power engineering with electrical engineering? Ans. Review a list of frequently asked Electrical interview questions for electrical graduates. 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. 13 interview questions that can decide your future. I was interviewed by two persons. Building “A” is supplied with 120/240 volt single-phase power from building “B” on the same property. This year, POWER was named the number 3 firm in the power … 2. online ups having high volt and amp for long time backup with with high dc voltage.but ups start with 12v dc with 7 amp. Frequently asked interview questions with answers under the subjects like electrical machines,Transmission and distribution,Power electronics and some general basic questions. Power Systems (Switchgear & Protection) Expected MCQ PDF 1 For Coal India Limited (CIL) MT Exam 2017 . Find the phase and residual relay currents. d. … Ring main feeder system. I was asked a number of questions from more basics such as frequency of electricity network in the UK to more daunting like loosing a big generation in the network and the available time to act (with regard to system's inertia). either by direct strokes on the equipment or by the strokes on the transmission lines that reach the equipment as travelling waves. Electrical Q & A. generators, transformers etc.) Advertisements. This is most general interview question related to power supply. Previous Page. Power System Protection Interview Questions 2; Answer: The relays are connected to the power system through the current transformer (CT) or potential transformer (PT). Explain differential protection? In this topic you will find the most common Questions and the Model Answers that you may expose to in your Interview for a Planning Engineer Position. Electrical Power System Interview Questions ; Question 16. point A in this case. Kuwait Society Of Engineers 2018 Fundamentals of Electrical Circuits: - Circuit variables and elements - Circuit laws and simple resistive circuits - Inductance and Capacitance - … To maintain continuity of supply the breaker should not trip in such condition. What is fault clearance time? ups is also two types : on line and offline . Power transformers generally operate at nearly full – load. This interview question for technical support tests your knowledge and if you updated with the latest technological trends. Interview. Name the latest computer processors? Q. ET Power Talks. And electrical engineering & electronics engineering ?
Answer:uninterrupt power supply is mainly use for short time . Air blast circuit breakers for 400 kV power system are designed to operate in (a) 100 microsecond (b) 50 millisecond (c) 0.5 sec (d) 0.1 sec Ans: b. Electrical Interview Questions & Answers visit www.eeekenya.com Page | 1 ... Power factor should be high in order to get smooth operation of the system. Figure shows a single line diagram of a radial system for a DC distribution where a feeder OC supplies a distributor AB at a point A. 5. Ans : In the power system sometimes a very temporary nature of fault persists for a short period of 2 or 3 seconds and after which the fault is automatically cleared. 1.Why star delta starter is preferred with induction motor? 4. As with all challenging interview questions, an employer will observe your voice and body language, since they’ll indicate how well you cope under pressure. We have to … Why AC systems are preferred over DC systems? Aside from the fact that most of these are silly questions for a technical job interview, the answer provided to your second question is just plain wrong. Device drivers are also a piece of software that considered mandatory to run the hardware components in the system. How to answer. Switchgear and Protection - Electrical Engineering (MCQ) questions and answers Home >> Category >> Electrical Engineering (MCQ) questions and answers >> Switchgear and Protection 1) In a circuit breaker the contact space is ionised by what? What Is Called Mobile Substation? Overfluxing protection is recommended for (a) distribution transformer (b) generator transformer of the power plant (c) auto-transformer of the power plant (d) station transformer of the power plant Ans: b. Describe the skills and competencies that make you a perfect fit for the role, advises Kim Whitfield, head of resourcing at M&S. What is protective relay? By . c. Possibility of causing fire hazards. What are different types of principles of operation of electro-mechaical relays? Electrical Safety - Power System . I A 75 A I B 0 A I To know the answer in detail, click on the link given in the answer. Obviously the distributor is fed at one end only i.e. Differential protection is based on the fact that any fault within an electrical equipment would cause the current entering it, to be different, from that leaving it. Let’s start. Jobs Again, assume that the A phase cur- rent is at 0°. SECTIONS. In India, industry uses 415 Volts 3 phase AC power at 50 Hz. Planning Engineer team reviewed questions and answers to remove duplicated ones, added more explanations and graphs to the answers, and produce the final product in a good shape. The circuit has an A phase to ground fault on the line, with fault current magnitude of 9000 A. 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. Low power factor means losses will be more.it is the ratio of true power to apparent power. You could mention: punctuality, work ethic, team-working skills, interpersonal skills. Power System Protection and Relays Questions & Answers . [2] How to provide Over current protection in a power supply? Risk of formation of explosive mixture with air. 84. Interview question for Management Trainee in Greater Noida.basic questions from power electronics, power system protection and machines Here For You During COVID-19 NEW! Q2) What is Cryptography? Great Manager Awards. Harikesh Yadav March 10, 2017 EE MCQ PDF, General. The lightning surges may cause serious damage to the expensive equipments in the power system (e.g. Electrical Engineering Objective Questions MCQ with Answer Free Pdf Download. Open Up India. Answer: Relay time is the interval between the occurrence of the fault and the closure of the relay contacts is called relay time. power systems relay questions; power system protection question and answers pdf; protective relay and circuit breaker interview question; protective relay isolation; POWER SYSTEM PROTECTION QUESTION AND ANSWER PDF; what is torque control in protective relay; Share on. Business News › Jobs › 13 interview questions that can decide your future. Therefore, breaker should be able to carry high current safely for some for some specified period during running i.e. “B” is supplied from a three-wire with two ungrounded conductors and one neutral without any metallic water pipe or other metal equipment connections to the building or equipment ground fault protection installed. SAS Interview Questions; Computer System Analyst (Software) Interview Questions; DATA ANALYTICS :- More Interview Questions; Business Intelligence. POWER-SYSTEM PROTECTION 15.3 2. … Cyber Security Interview Questions and Answers Q1) Define Cybersecurity? ETRise Top MSMEs. b. Switchgear protection plays a vital role in modern power system network, right from generation through transmission to distribution end. Double end fed power system 2. Next Page . Question #1. Learn what a Power System is, and the basics of Electrical Power Systems. Electrical Power System Interview Questions ; Question 24. Power System Protection and Relays 2 What is Relay Time? An example of a Power System is the Electrical Grid that provides power to homes and industry within an extended area. Electrical Engineering Interview Questions ; Question 25. The power system is responsible for the production of electricity with the help of energy such as coal and diesel. Next Article Transformers Questions … Hive Interview Questions ; Datastage Interview Questions; Oracle Warehouse Builder Interview Questions; Tableau Interview Questions; Apache Storm Interview Questions; Business Intelligence :- More Interview Quetions; Support. Highly-cited researchers. Home » Power System Protection and Relays Questions & Answers. ET Prime Women Leadership Awards. 1. A power transformer usually has one primary and one secondary, and one input and output. Questions (27) ... Power System Protection. Electrical Engineering interview questions and answers: Part 1 Part 2 Part 3 Part 4 Part 5 Part 6. Answer: When the fault occurs relay operates and close the trip coils and circuit breaker operates and open the contacts subsequently and fault is cleared. State the difference between generator and alternator 3. Answer : The substation, which is created for temporary requirements of mainly construction purposes, is called mobile substation. Please click on the Red Plus Icon to know the answer. What Are The Main Equipments And Accessories Used For Substation? Electro-magnetic attraction and electro-magnetic induction. The radial system is employed only when power generated at low voltage and substation is located at the center of the load. A. 13 interview questions that can decide your future. 13. Previous Article Why Starting Current of Induction Motor is High . Short time Over current is most general Interview question for technical support tests your knowledge and if you updated the., distribution, and the basics of Electrical power Systems ( Switchgear & protection ) Expected MCQ PDF,.. €¦ and Electrical engineering? < br / > answer: uninterrupt power supply Electrical.... Relays 2 what is Relay time called mobile substation period during running i.e types: on line and.. And amp for long time backup with with high dc voltage.but ups start with 12v dc with 7.... 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