Answers: 6. Transformer Multiple Choice Questions and Answers; 21. Use mesh analysis to compute the voltage in Figure 3.80. Copper loss is a constant after the coil has been wound and therefore a measurable loss. <>/Metadata 271 0 R/ViewerPreferences 272 0 R>> �Yj]Qo�B���my��Gy�Z�����y|�.��]���\L *Dd�@��R�6�@v/�b\�ɋ�q�&����K/w�jWxJ���i����iLåI��|fFM�k��I The transformer works on the principle of electromagnetic induction. Browse from thousands of Electrical questions and answers (Q&A). Q.1 Define Transformer? That is electromagnetic induction between two circuits which is linked by a magnetic flux. Correct Answer. In this video I describe interview related question of transformer, i will upload video in sequence of 10 questions. Follow below links to download MCQ Set. ... Answer. Answer: TRANSFORMER LOSSES - Transformer losses have two sources-copper loss and magnetic loss. 140 TOP MOST TRANSFORMERS - Electrical Engineering Multiple Choice Questions and Answers Electrical Engineering Multiple Choice Questions.pdf - Free download as PDF File (.pdf), Text File (.txt) or read online for free. Comment. Ans : If the secondary of a C.T. S = V 1I 1 ⇒ I 1 = 60∗103 2400 = 25A S = V 1 I 1 ⇒ I 1 = 60 ∗ 10 3 2400 = 25 A. b. list the rated current in the secondary. 3. An ideal transformer will have maximum efficiency at a load such that. TRANSFORMER Interview Questions and Answers Pdf free download for freshers & Experienced. h�b```a``j ��R cb�k���uR2*��ܟ��w�uw��{oX%ߔm��[����?Tx���Ǫi��M�J�|w�ͭV������L�$e�8`��@� X~�iA ��(����e��^�'�syv߸k����g�6��S��Pr�dR�;�r���c�"���X�iF`�܁��k� �(�U� j�[� The input current is 0.25 A and the primary coil has 50 turns. In this page , we have dicussed about lots of transformer interview question.All transformer interview question have been collected from exprience Electrical Engineers.There are 13 nos. Your name: Your Email: Your Comments: You can send your comments directly at info@mechanicaltutorial.com. So please prepare all these current transformer interview questions and answers to improve your knowledge. ���=. Transformer interview questions paper-1. œ�$�?5��)g���ń�K����������rɓ�>)���}�v���"�IUJH�2�2�k�a��]�B70� 2@ or�#���kJ~����=��=��du;#+��O�3�i����;���1�Z`̽%����]�/oQXC;U��b(�\������ؓQ',�YxM�% Electrical Transformer Quiz Questions. C. Kw. Explain its working. %%EOF Free Online Quiz test transformer theory and practice. ) What is a transformer and how does it work? Updated July 28, 2020 . A transformer core is laminated to. (a) reduce hysteresis loss. (C) A common core for its primary and secondary windings. (a) Current (b) Voltage (c) Frequency (d) All of the above Ans: c. 2. Answers: 4. 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. endobj (b) reduce eddy current losses. (D) Core of stainless steel and winding of pure copper metal. What is the operating principle of a Transformer? The primary and secondary winding of transformer are linked each other by. Transformers multiple choice questions and answers on transformers MCQ questions quiz on transformers objectives questions. <>/ExtGState<>/XObject<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> %PDF-1.6 %���� 1:"�J�D(Z���:U�=�. The transformer ratings are usually expressed in..... A. Volts. A transformer has no 22. 361 0 obj <>/Filter/FlateDecode/ID[<9F4854448DE4E0449A8C2D0A1EBE56D7><881F1965406916468278E864FA1CA924>]/Index[342 62]/Info 341 0 R/Length 96/Prev 353506/Root 343 0 R/Size 404/Type/XRef/W[1 2 1]>>stream page of transformer interview question.Hope transformer interview question should be help you for preparing your interview. Answer : In a power transformer, currents in the primary and secondary are to be compared. Home; Electrical Theory. endstream endobj 343 0 obj <> endobj 344 0 obj <>/Resources 364 0 R/Rotate 0/TrimBox[36.0 36.0 631.83 809.13]/Type/Page>> endobj 345 0 obj <>stream 3 0 obj 342 0 obj <> endobj B. Show and hide multiple DIV using JavaScript. What Is A Transformer? 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Which of the following does not change in a transformer ? x��\mo��n���@�H���K����5R����z�D~A˕������Jkq�K�h6��Ȟ�3�/N_�VW�og_�輪��?N/��}Z��:��2[�|I�.����e��sA1��zA��?��㣳��ӟ9�?\^qb�+(�X��S��+��ޒ�%4Hn�On����'�����ٟ�Ǐ��˿���=>���'*T�k��������}=$��>=H&%,e��ͻ�͛��Z1ʳu�M����.P���DNn,�'b�y�&K�&��qMmn�1��P��E9��� �vA��TN�f���\�u�L=��BLR%U.�6W�����/�8kzb'�aj'��3���-3�U.�!�O��4� �^��B�I��(C^�='��NSo��\��~6s46 Z"����5�f$�R8r�FcV����Tih���S����sr1'��&�@�i64�S�b��I�=����� Transformers MCQ Questions and Answers Quiz. … Electrical Transformer Quiz Questions Answers: ) Search for: Related Pages. When a load is connected to a transformer current (say I 2 ) flows through secondary coil thus an M.M.F (N 2 I 2 ) is produced, this produces the secondary flux. A transformer is a static device which can transfer power from one circuit … What are the transformer losses? W�L.�0S4��ZJV>%.�\��I�[W��r��3�WZ_�r)!�6��g� =���D�����TNS����4Ƙ�i���˜��@b6-��9�v�7wFW�#�p@Mh2�\��p�2^���u r�(��&3�H��� }���-�3����j8��_Q�� 4 0 obj Ans. If the secondary circuit is open, the secondary voltage is 2.4 V. Page 2 info[at]objectivequiz[dot]com Mention The Short Comings Of Merz Price Scheme Of Protection Applied To A Power Transformer? Transformer Theory Quiz questions. Become a part of our community of millions and ask any question that you do not find in our Electrical Q&A library. A transformer works based on the principle of mutual induction. Two coils are wound on a common core. [Z��6�] �F>���m]�'I�kÖ(�u���إ� (A) No losses and magnetic leakage. A transformer has an output voltage of 40 V and an output current of 5 A. Part B – Transformer Basics 112 4–8 Transformer Primary and Secondary 113 4–9 Transformer Secondary and Primary Voltage 113 4–10 Autotransformers 113 4–11 Transformer Power Losses 113 4–12 Transformer Turns Ratio 114 4–13 Transformer Kva Rating 115 4–14 Transformer Current 115 Unit 4 – Questions 117 Chapter 2 NEC Calculations and List the rated current in the primary. h޴Y}S�8����`n`e���f JiHBۻ��8"�p��v(�����N�$����G�ZZ��v��LG )L��a`nanbnSar�3W����',����A~W transformer objective questions and answers pdf,transformer,transformer mcq question,transformer objective questions,transformer mcq,transformer mcq in hindi,transformer in hindi,power transformer in hindi,transformer objective questions and answers hindi,transformer question answer in hindi,transformer objective questions asked in ssc je,general science quiz in hindi,transformer … stream Copper losses are caused by the resistance of the wire (I2R).Magnetic losses are caused by eddy currents and hysteresis in the core. 7.) Use mesh analysis to compute the voltage in Figure 3.82. As compared the transformer with AC machines it is more efficient because. A 60-KVA single phase transformer with a primary voltage of 2,400 volts and a secondary voltage of 240 volts. this is ours best creations for electrical engineering upcoming exam unit name que 1 dc generators 124 2 dc motors 123 3 transformers 135 4 three phase induction motors 101 5 single phase induction motors 110 6 synchronous motors 124 7 transmission and distribution 102 8 cables 56 total 875 click here to download 875 que pdf electrical engineering important mcq pdf electrical engineering … D. Kva View Answer. D.Kva Your Comments. Home MCQ [PDF] 100+ Solved MCQs on Transformers [PDF] 100+ Solved MCQs on Transformers [PDF] 100+ Solved MCQs on Transformer. file 00412 Answer 3 E phase = 277 V Notes 3 More important than obtaining the correct answer is for students to explain what they did to get that endobj When AC supply is given to the transformer, the flux will depend on. 0 = , = = (50)(0.25 ) 5 =2.5 … The Following Section consists Multiple Choice Questions on Transformers. 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. Notify me of new posts by email. What will be the effect of open circuiting the secondary of a C.T. 1. 2. 1. In transformer, humming sound occurs due to. TRANSFORMERS Multiple Choice Questions with Answers :: 1. Answer: Option A. In a transformer the energy is conveyed from primary to secondary (a) through cooling coil (b) through air (c) by the flux (d) none of the above Ans: c. 3. Transformers Interview Questions & Answers Why is transformer flux constant? Required fields are marked * Name * Email * Website. The primary coil is connected to an AC voltage source. Take the Quiz and improve your overall Engineering. 2 0 obj 4. A. copper loss = iron loss. %���� h�bbd``b`NA@�����$�5��L �{ ��� �0��qu��$�6W !�$�w ��@B��~�����d�p �3^�` p�� }X�!�7��^QP��� 211. (c) … Leave a Reply Cancel reply. A transformer is an telectrical apparatus designed to convert alternating current from one voltage to another. endstream endobj startxref Basic Transformer Questions with Answers Short very important Lab viva Mcqs Objective Questions for gate 403 0 obj <>stream B. Amperes. Use mesh analysis to compute the current through the resistor, and the power supplied (or absorbed) by the dependent source shown in Figure 3.81. ����Z GGu͊�?�+$;,l��\Q�+��,n���U{��t/G�@�t�QaTP=;?��I�[*u�~֠���~���[�&����(����C�,�[��rD��k8c8��x�6 1 0 obj A current flowing in the primary coil generates a time-varying magnetic field in the core. a. Transformer interview Questions & Answers paper-12. File Description: File Type- PDF. Download 100 plus solved MCQs of Electrical Transformer. <> *Q���I #РK&��d�wp�у��t�����iz���b�@I��� ��)���$ַEIe, ���|��3���}�����%Qre��q��A�~�n���Ƒ��CWL#�-��u����r�v׃�8�s����厁���Ь)]�3�k�=�b�zkW*�%g�D��^���W�L]Da�S*�I�Q���c-$=�,������4�,�i�W[����{�X��]�|���$���GQ�����0��?��P�g7 �Fe,Ɔ�G�]~Y�O�x��x��:!�⢽�d�q�!���b^%R2����G��ˉ��M�]�r�j��ch���AM��@�\���Ӡ9�R��}�2KW6�RɅ�)S��8���pϾ�/1�v� Transformer, Construction, Working, Types & Application - Electrical Technology.pdf Your email address will not be published. All the MCQs are solved. Question 3 In a balanced Y-connected power system, calculate the phase voltage (E phase) if the line voltage (E line) is 480 volts. Fill in the table below for this transformer. <> %PDF-1.7 Notify me of follow-up comments by email. (B) Interleaved primary and secondary windings. It is a device which is used to transform electrical … File Size= 532 KB. Will be the effect of open circuiting the secondary of a C.T: c..! “ step up ” or “ step up ” or “ step down ” voltages and works on principle! Is a device which is used to transform electrical … transformer interview Questions Answers. Questions Quiz on transformers MCQ Questions Quiz on transformers objectives Questions::.. Induction between two circuits which is linked by a magnetic flux Protection Applied to a transformer... Constant after the coil has 50 turns sources-copper loss and magnetic loss loss is static. Connected to an AC voltage source electromagnetic induction [ dot ] com transformer Theory and practice. 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D ) core of stainless steel and winding of pure copper metal please prepare All these current transformer interview &. Maximum efficiency at a load such that a measurable loss following does not change in a?... Will upload video in sequence of 10 Questions compared the transformer works on t magnetic... Answers – with hints for each question it work 5 a 40 V and an output of...
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