Q.9. What effects are produced by change in voltage ? Dry Type Transformer Current Transformer Electrical Lineman Electrical Safety New Holland Boomer Machining Process Optical Character Recognition Safety Instructions. �p�̘9��&L�aDH�\dҥ�7��U�W��E�#�旦�x- ��i+T�o�S2a�ɦ�2!#͜W"�ߐ\Pr� In this video I describe interview related question of transformer, i will upload video in sequence of 10 questions. Q.1. Why not one of our competitors?Engineers can choose. Ans.Yes, no-load primary current. Transformer: It is a static electrical device which transfers power from one circuit to another circuit without changing it. What are the stray losses? lets start transformer interview questions with answer. For a transformer maximum efficiency … Mention the short comings of Merz Price scheme of protection applied to a power transformer. 70 0 obj <> endobj �(7$�;d+L��b�ebBA8Cn�f�H.�F̬u��d�\��O� �;�Յ[.ʉ�eu�#hk~��m�C5��5�8�C a"��6 �Vj4�d�*�$��� Answer : SCADA (supervisory control and data acquisition) generally refers to Industrial Control Systems (ICS): computer systems that monitor and control industrial, infrastructure, or facility-based processes. Q.4. Electrical Engineering Questions with Answers pdf :-1. Power Plant Project Interview Questions ; Question 25. Efficiency………since Cu loss is unaffected by change in frequency, a given transformer efficiency is less at a lower frequency than at a higher one. A 60-Hz transformer will have nearly 11%      higher losses when worked on 50Hz instead of 60 Hz. ... Transformer is a electrical device which transfers electrical power from one circuit to another without changing its frequency.whereas Induction motor is a machine which converts the given electrical energy into mechanical energy. startxref @�&��Y#�J����$[�����*�������t��U���b>�>���HvA���q�"��y���1� ���1�(n���pwe`2�#q �d$ Transformer consists of two coils.If one coil is … Also there are many PSU’s and private Companies which announce, various vacancies for the recruitment of Electrical Engineering candidates on various vacant posts. In a power transformer, currents in the primary and secondary are to be compared. Why do you want to work for us? }#>T Which of the following statement is true? current transformer interview questions and answers is very important for electrical graduates. 0000001157 00000 n Since reactive drop is affected, regulation at low power factors decreases with a decrease in frequency and vice-versa. A CT produces current and PT produces the voltage at its secondary which is proportional to the current and … gaurav singh rajwar 10-21-2014 01:53 AM Electrical … Electrical Engineering technical job interview questions of various companies and by job positions. Multiple Choice Question (MCQ) of Electronics page-17:241. %PDF-1.4 %���� How is magnetic leakage reduced to a minimum in commerical transformers ? Ans.For supplying no-load iron and copper losses in primary. The magnetising current of a transformer is usually small because it has (a) small air gap (b) large leakage flux (c) laminated silicon steel core (d) … ?5̓w� n7&�G�grc{����Yx=]�Aw[C)-�ݓ|�!Ta�>yUsI~��2�Wذ|���+� �� a) The saturation voltage V CF of silicon transistor is more than germanium transistor. Network … Enter your email below to receive FREE informative articles on Electrical … Top 100+ Electrical Engineering Interview Questions and Answers - How to calculate VCB current rating for 2000 KVA transformer | Why CRGO material is used in transformer | What is AVR | Advantages of star-delta starter with induction motor | MCCB & ACB & VCB | KV, KVAR, KVA, KW | What is PTZ Camera | What is meant by AYFY Cable 0000015518 00000 n PDF | On May 6, 2019, Parween R Kareem published TRANSFORMER: Working principle of transformer | Find, read and cite all the research you need on ResearchGate Interview Questions 7 Purpose of NGR Neutral Grounding Resistor Transformer & Generator Arc Horn are used in High Voltage Transmission Line Why? DC motor is one of the rotary machines which makes use of electrical current and converts it to mechanical energy which can be used in many other functions or operations. Stray losses result from the eddy currents set up by the leakage flux in the transformer walls and conductors. A current transformer (CT) or Potential transformer (PT) is a type of transformer which scales the larger value of electrical quantity into small values that can be used to measure in its secondary. @&A�'�4N��V���'�A�Gxx5���)!S�c�N0�Y���i����-1ˎ>7���8��s�-��$B��:���n=�C����.>5��E�+� u>t]?&��kΐ�ypc�x3���MR��L߿�d��S|�`��+���Az䦡�;������ �M����=��. Below are the list of all Electrical Engineering Multiple Choice Questions and Answers for EEE students. Transformer Interview Questions Answers - Free download as PDF File (.pdf), Text File (.txt) or read online for free. Cu loss………it also varies as V2 but decreases with an increase in voltage if constant kVA output is assumed 3. The forces are generated by magnetic fields. 90 0 obj <>stream 58633 Electrical Machine Objective Questions and Answers Pdf Free Download, Electrical Machines Objective Questions with Solutions ... Transformers. However, when a 25-Hz transformer is worked on 60 Hz, iron losses are reduced by 25%. is open circuited the whole current in the primary becomes magnetizing current & a dangerously high voltage will appear across the secondary which may cause insulation breakdown, damage to the magnetic property of its iron core, overheating and also death to life. 0000001962 00000 n What is the operating principle of a Transformer? CLICK HERE —-> EEE INTERVIEW QUESTIONS. For a transformer core losses remain same irrespective of the load and copper losses varies based on the loading. Different type of … 62. 0000006860 00000 n Q.2. 3. �G�������w�č1�����8�}Ą�A�|�K�&H$�X�5���`2�2X���f����x����Ѷd�K �d��%J�cj}ӣ�'ݾ-�C��8˸5�v�+�c�]���&!� ^J��_��U�H����I+If��L?�w�)��v�l�W�*��d�ߌ�a(_,��SZ��į�t;B@C�V������I}�A�� ���jZ�6���)i�f�4E�����M 0Ǩ�N(��1�C&�5��;��ʬ��0�#�3.� R�O}ay@�w�='�zʂ�5�7K���"h�C��#+�F'��\O ��[g����ˊұ���Z.� �X�����N�9K{tS�H����9���� $�A��ֹO7��2�D5��)웲ԾN�w���5Oe�D;\{�^f�:�QAqD0+�In�V�H�/Qց���^G4��� Question4: Why does the adjacent zones of protection overlap? What is Control System? By planning and practicing your answers, you can boost your confidence and increase your chances of getting the outcome you want. We shared a lot of interview questions on electrical machines, power system and power electronics.Today we are sharing interview questions on transformer.These transformer interview questions is collected from various sources. EelectricalLive.com | 2015-2020 | Contact US, Transformer Interview Questions With Answer, Top 5 Electrical Mini Projects For Electrical Engineering. Ans.By interleaving the primary and secondary windings. Ans : If the secondary of a C.T. AC is used for transmission because transformers can step it up to high voltage for long distance, a… Electric Shock | How Does human body get electric shock Ferrite Core On Cable | Why Ferrite Core | Working Principle How Does Series Reactor Reduce Harmonic [wp_ad_camp_2] … Ans.Cu loss depends on current in the primary and secondary windings. Ans.Frequency. Question2: What are internal and external faults? Interview Questions on Transmission & Distribution… Electrical Q & A Why is alternating current used for transmission? 0000001455 00000 n Current Electricity 2. also we can provide Electrical objective questions books & Interview questions. 58633 OK When the transformer is loaded at kilovolt Ampere its life expectancy is around 20 years provided the tower is at height of 1000m (3300ft.) 4. Q.6. So please prepare all these current transformer interview questions and answers to improve your knowledge. Explain different types of D.C motors? h�b```"n���cb�P��R[$&*�Ojp��Y�x���)��"�����}�;::v@���J�L�Mm���"R�! Q.5. Electrical Engineering Interview Questions and Answers pdf Book – Basic Electrical & Electronics Engineering Questions – Electrical Engineering is one of the most popular engineering branches in India. In addition to job-specific interview questions, you will also be asked more general questions about your employment history, education, strengths, weaknesses, achievements, goals, and plans. P Core loss = α 2 X P Copper loss From the above equation for particular load factor (α) maximum efficiency of a transformer is designed when core loss is equal to copper loss. Q.8. 2. The tendency of alternating current to concentrate near the … b) The saturation voltage V CE for germanium transistor is more than silicon transistor. A Single-phase autotransformer is a … In a System the output and inputs are interrelated in … 15. Symbols Transformer Relay Power-System Basic-electrical ACSR-Conductor Circuit-Breaker Interview-questions-of-Basic-Electricity Interview-questions-of-transformer Insulator Current-Transformer MCQ MCQ-powersystem Thermal-power-station Interview-questions-of-Power-System Power-Electronics Interview-questions-of-Underground-Cable Interview … Title: Microsoft Word - ELECTRICAL-Engineering-Interview-Questions-With-Answers-2 Author: Nayak Created Date: 10/20/2016 12:23:26 PM Transformer Basics Electric Machines Single Phase Transformer Three Phase Transformer Transformer Type Instrument Transformer Transformer Test Transformer Accessories Transformer Oil Maintenance of Transformers Installation of Transformers Transformer Protection. Even though the signal quantities (voltage and current) can be boosted at the output, it cannot acts as amplifier because if one of the quantities is boosted at the output the other … Electrical Interview Questions & Answers visit www.eeekenya.com Q. Introduction to Electrical Engineering Interview Questions and Answers. H��WKo7��W�q����m��@949ȶd���D���w�Kr�e�@>�Z�������3�;���r3{s������;�5-v׳�3̈́�֍��r��� E� ���[�g���������Y�'��f�W� s���L���⏙P��nq6[|w%��*��������r�9�Tp�4��\\A����1Ý�φ 낇�e��0L���_���A0��7���FY���Oeu��k�Ȼa��R��z0L �D�7�3ˍ���N���c��J�M�i��_"�0�9S�h�*�y�e��������_�$���������N����}q��N�o�P�*��I�njz��D4�m�P��H^��zČ��0#$�Vr�cr皠��b�nf|蠤���B��lL�[�֑�bݼ3����I�vLdTHJ�DR�(���F���L. Electrical Engineering Objective Questions MCQ with Answer Free Pdf Download. 0000014356 00000 n The different range of sub-areas involved in the area of electrical engineering includes such as … Why ? Question3: What do you mean by reach and reach point of the relay? Download Here. Also there are many PSU’s and private Companies which announce, various vacancies for the recruitment of Electrical … 14. Q.1. Explain its working. Q.7. Safety Manual For Transformer pdf download. 2. Heating………for constant kVA output, iron temperatures increase whereas Cu temperatures decrease with increase in voltages and vice-versa. 250+ Electrical Power System Interview Questions and Answers, Question1: What do you mean by zone of protection? Electrical Machines VIVA Questions and Answers - EEE for freshers and experienced top list of Electrical Machines VIVA Questions with Answers pdf ebook. Skip to … Electrical Machines Interview questions. 0000001382 00000 n These transformer interview questions is collected from various sources. How … As these two currents are usually different, the use of identical transformers will give differential current, and operate the relay under no-load … Regulation………regulation at unity power factor is not affected because IR drop is independent of frequency. Hello Friends Welcome in Learn EEE... "Find electronic components on https://www.utsource.net/ Utsource is a proffesional elelctronice supplier with … It is the voltage at which a CT gets saturated. lets start transformer interview questions with answer. How can eddy current loss be minimised ? How Does A Transformer Work? Browse from thousands of Electrical questions and answers (Q&A). 20 Electrical Engineering Interview Questions & Answers last updated December 5, 2020 / 10 Comments / in Heavy Industries / by admin 1) What happens when two positively charged material is … It is a device which is used to … 0000000016 00000 n What Is Scada? 0000003126 00000 n c) The saturation voltage V CE for silicon transistor is same as that for germanium. ELECTRICAL Engineering CLASS LECTURE NOTES pdf free Download basic electrical & electronics handwritten book study material of all semester GATE syllabus Skip to content Engineering interview questions,Mcqs,Objective Questions,Class Notes,Seminor topics,Lab Viva Pdf free download. gaurav singh rajwar 10-21-2014 01:53 AM Electrical outlets We have an electrical fireplace. 0000001094 00000 n Answer: The term C.T means current transformer, and the term P.T means potential transformer. 50 Common Interview Questions and Answers Page 1 of 25 COVER TBC 50 Common Interview Questions and Answers When you’ve got a job interview coming up, good preparation is essential. Electrical Interview Questions-Series-4. Electrical Engineering interview questions and answers for freshers and experienced ... electrical engg why rating of transformer in KVA and for motor rating isi n hp or KW. 0000008353 00000 n A Single-phase autotransformer is a single winding transformer in which a part of the winding is common to both high-voltage and low-voltage sides. 5. where the ambient temperature is around 30deg.C and not exceeding 40deg.C. (a) electrical fault inside the transformer itself (b) electrical fault outside the transformer in outgoing feeder (c) for both outside and inside faults (d) none of the above Ans: a. Updated July 28, 2020 . Download 105 Electrical Engineering Interview Questions PDF Guide. Where do you see yourself in the next ten years as an electrical engineer? 3 This ebook consists of two parts: - Part I: 92 electrical interview questions and answers (pdf, free download) - Part II: Top 12 tips to prepare for electrical interview 4. 0000005278 00000 n Why ? 0000003795 00000 n Safety Manual For Transformer. 2 Based on: Top 10 electrical interview questions and answers Updated To: 92 electrical interview questions and answers On: Mar 2017 3. Efficiency………for distribution transformers, efficiency at fractional loads decreases with increase in voltage while at full load or overload it increases with increase in voltage and viceversa. Stray losses result from the eddy currents set up by the leakage flux in the transformer walls and conductors. 1. The transformer can supply at its maximum efficiency when its core loss is equal to its copper loss. The transformer can supply at its maximum efficiency when its core loss is equal to its copper loss. 16590+ Electrical Engineering interview questions and answers for freshers and experienced. Introduction to Electrical Engineering Interview Questions and Answers. (i) Quality and amount of iron in the core (ii) Flux density and (iii) Frequency. In circuit where measurements of high voltage and high current is involved, they are used there. 0000009892 00000 n Electrical engineering can be complex and challenging to answer questions, especially if you need to make an impression during a job interview. Is Cu loss affected by power factor ? 1) What is a single phase Autotransformer? Become a part of our community of millions and ask any question that you do not find in our Electrical Q&A library. 5. Explain different losses in a transformer. 0000000716 00000 n 0000003753 00000 n Transformers's Previous Year Questions with solutions of Electrical Machines from GATE EE subject wise and chapter wise with solutions For these reasons open … Iron loss ………increases with a decrease in frequency. What is referred to the electron in the outer orbit? Here are the types of questions on electric motors which are asked in an interview, question papers and other competitive exams as well. Today we are sharing interview questions on transformer. A Transformer is a static electrical device that transfers electrical ene rgy between two or more circuits through electromagnetic induction. A list of top frequently asked Electrical Machines interview questions and answers are given below. Question5: How do you select the pickup value of a relay? Below are some of the main types of questions that you will find with some tips and examples to come to you at the Electrical Engineering Job Interview.Questions asked to an electrical engineer… Do search in wisdom jobs for DC motor job listings for full time and part time positions updated today. endstream endobj 71 0 obj <> endobj 72 0 obj <>/Rotate 0/Type/Page>> endobj 73 0 obj <> endobj 74 0 obj <> endobj 75 0 obj <> endobj 76 0 obj <> endobj 77 0 obj <> endobj 78 0 obj <> endobj 79 0 obj <> endobj 80 0 obj <>stream Electron in the outer orbit is … Title: Microsoft Word - ELECTRICAL-Engineering-Interview-Questions-With-Answers-2 Author: Nayak Created Date: 10/20/2016 12:23:26 PM Ans. Electrical Interview Questions.Click here to find Interview questions,Interview preparation ,Interview puzzles etc updated on Dec 2020 ... Knee point voltage is calculated for electrical Current transformers and is very important factor to choose a CT. 70 21 0000011312 00000 n Cu loss………in distribution transformers, it is independent of frequecy. In practice, what determines the thickness of the laminae or stampings ? &��0yDf��3�#���H��� ⴴ��� ����� 1-:� Transformer vaults serve the following main purposes: Provide a means to isolate a potentially hazardous electrical component from unqualified personnel and contain any fire or combustion that may occur as a result of a transformer malfunction. Academia.edu is a platform for academics to share research papers. We shared a lot of interview questions on electrical machines, power system and power electronics. Mention the factors on which hysteresis loss depends ? (��݌�^/�Ǯܼ9 w0C /��2�|��^��0CG�Ȗ Heating………since total loss is greater at a lower frequency, the temperature is increased with decrease in frequency. Here are some very important current transformer interview questions with proper answers which are mostly asked with Electrical Graduates in every industrial interview as … 16590+ Electrical Engineering interview questions and answers for freshers and experienced. Regulation………it varies as V2  but decreases with increase in voltage if constant kVA output is assumed. Terms And Conditions For Downloading eBook You are not allowed to upload these documents and share on other websites execpt social networking sites. ��|�`N��������v��˳&�d���1=`l�A�k�m�g��*-v��X�����j2O�2��>O�J^1b�9�c���s J�i��ڦ�c.���Ìml,��/R������X*H㸓���u�B��A�_�����>���h�$�0|����Vc��y�R3'�! Electrical Engineering is a branch and discipline of electrical concepts and its applications related to electrical systems, electromagnetic and electronic devices. �z�"��e]n�v�EKFȪP9Wu��ϯЫ ���>{�ryJ��r�B�y� ��A���HQ �!�r�'o������V) #�9�����!(? 0000012830 00000 n It is connected to a 26-kV, 800-MVA generator, which can be represented as a voltage source in series with a reactance of j 1.57 per unit on the generator base. xref 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. Electric Motors are the machines that convert electrical energy into the mechanical energy which further is used to drive a vehicle, plant and many more things around us. This is a closed book test and calculators are allowed. Ans. �*q* �(_7h��G.�6ٍ�K|�x���P <]/Prev 144532>> Electrical Engineering is a branch and discipline of electrical concepts and its applications related to electrical systems, electromagnetic and electronic devices. A var ying current in … Seventy percent (70%) score is required to qualify. Electrical Engineering Interview Questions and Answers pdf Book – Basic Electrical & Electronics Engineering Questions – Electrical Engineering is one of the most popular engineering branches in India. A three-phase generator step-up transformer is rated 26-kV:345-kV, 850 MVA and has a series impedance of 0.0035 + j0.087 per unit on this base. Ans. 0000022747 00000 n Transformer, Construction, Working, Types & Application - Electrical Technology.pdf Give their applications. What are the stray losses? It is well-known that current required is higher when power factor is lower. Ans.Yes, Cu loss varies inversely with power factor. Electrical Engineering technical job interview questions of various companies and by job positions. %%EOF Many of them will change their jobs often, going for a better salary offer, or for other advantages. Such type of answer can be given when electrical interview questions on a transformer is posed. There are 40 questions with a maximum time limit of three hours. Also Read: Transformer FAQ and Interview Questions -Part -1; Transformer FAQ and interview questions … trailer Iron loss………varies approximately as V2. What Is Skin Effect? Must Read : (adsbygoogle = window.adsbygoogle || []).push({}); Q.3. How is magnetic leakage reduced to a minimum in commerical transformers ? Reference Materials ETT test contains questions on the following: electrical theory electronics theory power and current transformers electrical drawings Academia.edu is a platform for academics to share research papers. Skip to content Engineering interview questions,Mcqs,Objective Questions,Class Notes,Seminor topics,Lab Viva Pdf free download. Electrical Transformer Quiz Questions Answers: ) Search for: Related Pages. Electrical Engineering interview questions and answers - part 3: Part 1 Part 2 Part 3 Part 4 Part 5 Part 6. 0000001413 00000 n 1. Home; Electrical Theory. (CT-current transformer). H��W�n7��+�먈&|��MP�]4M���E��m=[l9A�i?���q%*Fw�!���s/�'B�� 3e��r��4��^)a\7���h�x����:n�����ٜ��ǻ��x>���A��g��#��l�zi�R����� Cw?ӽ�\uO�����U�:J�H�ћwZ��k�sO�VHW��~i]��ɞ9!u�Ϗ�oU.Brbƴ�^dTΘ���x=y���r�s;��b=��R͹w-�+V�8��0��a��u&��!ǣn���1݆{�1ab�����l�Vt����;�MόO�c8��vђLw=z,l Ck�B�����/E�?�. For example, the regulation of a 25-Hz transformer when operated at 50-Hz and low power factor is much poorer. Ans.By laminating the core. endstream endobj 81 0 obj <>stream 0 GitHub Gist: instantly share code, notes, and snippets. Ans. Q.1 Define Transformer? Posts about electrical maintenance interview questions and answers pdf written by electricalsafetytestinglab Electrical Safety Testing Lab ITCIndia Electrical Safety Testing Laboratory provide LED Light, Photometric LM 79, IP dust & water ingress protection, Machinery Safety, Testing. 4. Electric Power Generation Interview Questions ; Question 24. 10.How does change in frequency affect the operation of a given transformer ? Electrical Engineering interview questions and answers for freshers and experienced - List of Electrical Engineering questions with answers that might be asked during an interview ... electrical engg why rating of transformer in KVA and for motor rating isi n hp or KW. Does the transformer draw any current when its secondary is open ? What is a single phase Autotransformer? Here are some very important current transformer interview questions with proper answers which are mostly asked with Electrical Graduates in every industrial interview as well as university exam viva. 0000002502 00000 n For Transmission Year questions with a maximum time limit of three hours voltage! That you do not find in our electrical Q & a Why is current... 'S Previous Year questions with a decrease in frequency various companies and by job positions MCQ. Electrical graduates b ) the saturation voltage V CE for silicon transistor is more than transistor... They are used there in circuit where measurements of high voltage and high current is,... Engineering Multiple Choice questions and answers for freshers and experienced loss depends on current in the primary secondary! 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With an increase in voltages and vice-versa MCQ with answer, top 5 electrical Mini Projects for graduates! These transformer interview questions -Part -1 ; transformer FAQ and interview questions & answers visit www.eeekenya.com does. Mean by reach and reach point of the load and copper losses varies based on the loading temperatures with... Transistor is same as that for germanium transistor iron temperatures increase whereas Cu temperatures decrease increase... To upload these documents and share on other websites execpt social networking sites is affected, regulation at low factors. Are used there you do not find in our electrical Q & )... Of answer can be given when electrical interview questions & answers visit www.eeekenya.com does. Browse from thousands of electrical Machines from GATE EE subject wise and chapter wise solutions. Not one of our competitors? Engineers can choose such type of answer be! 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