Related InterviewSolutions

• How many factors are present in the behavior of transformer under short circuit conditions?(a) 2(b) 3(c) 4(d) 5I got this question in a national level competition.Question is taken from Turns Compensation in section Design of Current Transformers (CT) of Design of Electrical Machines
• What is the dimension of the round copper wire made use of in the windings of current transformer?(a) 3 cm^2(b) 3 mm^2(c) 3 m^2(d) 3 cmThis question was posed to me during an online interview.This is a very interesting question from Turns Compensation topic in section Design of Current Transformers (CT) of Design of Electrical Machines
• The phase angle error is significantly affected by the small change in secondary turns.(a) true(b) falseI had been asked this question in an internship interview.The query is from Turns Compensation in chapter Design of Current Transformers (CT) of Design of Electrical Machines
• What is the range of current density in the windings of the current transformer?(a) 1-3 A per mm^2(b) 2-3 A per mm^2(c) 1-2 A per mm^2(d) 0.5-2 A per mm^2I got this question in homework.Question is taken from Turns Compensation in chapter Design of Current Transformers (CT) of Design of Electrical Machines
• What is the best number of secondary turns of the current transformer?(a) 1(b) 2(c) 1 or 2 less than the number such that the turns ratio is equal to the nominal current ratio(d) 1 or 2 more than the number such that the turns ratio is equal to the nominal current ratioI had been asked this question in exam.My enquiry is from Turns Compensation in portion Design of Current Transformers (CT) of Design of Electrical Machines
• What is the formula of the actual ratio?(a) actual ratio = turns ratio + load current * secondary current(b) actual ratio = turns ratio * load current * secondary current(c) actual ratio = turns ratio + load current / secondary current(d) actual ratio = turns ratio / load current * secondary currentI had been asked this question in a job interview.My question is from Turns Compensation topic in chapter Design of Current Transformers (CT) of Design of Electrical Machines
• What happens if the number of secondary turns is reduced?(a) the primary turns is reduced(b) the output is reduced(c) the efficiency is reduced(d) the transformation ratio is reducedI got this question in an online interview.I'm obligated to ask this question of Turns Compensation topic in division Design of Current Transformers (CT) of Design of Electrical Machines
• What is the use of the turns compensation in current transformer?(a) to increases the ratio error(b) to reduce the ratio error(c) to increase the phase angle error(d) to reduce the phase angle errorThis question was addressed to me in class test.My enquiry is from Turns Compensation topic in section Design of Current Transformers (CT) of Design of Electrical Machines
• What is the rating of the primary current in the current transformer?(a) 200 A(b) 300 A(c) 400 A(d) 500 AI got this question in an international level competition.Origin of the question is Design Principles topic in chapter Design of Current Transformers (CT) of Design of Electrical Machines
• What is the ideal condition with respect to the primary current rating?(a) ratio of secondary mmf to primary mmf should be high(b) ratio of secondary mmf to primary mmf should be low(c) ratio of excitation mmf to primary mmf should be high(d) ratio of excitation mmf to primary mmf should be lowThe question was posed to me by my school principal while I was bunking the class.Question is from Design Principles topic in division Design of Current Transformers (CT) of Design of Electrical Machines