Line and phase current relationship interview

Chapter 5: Personal Interviews

line and phase current relationship interview

Where can I get Electrical Engineering Three-Phase Systems in Power Systems in Power Applications questions and answers for interview and entrance A. load voltage and line voltage are one-third the source voltage for a given phase. Clarifying rotating equipment fundamentals will aid in electrical design and troubleshooting. The current from each phase enters a coil on one side of the stator and exits through a coil field rotates is called the synchronous speed and is described by the following equation: . Lines and paragraphs break automatically. Three-phase “Y” connection has three voltage sources connected to a common The terms line current and phase current follow the same logic: the former.

Nevertheless, I structured my workweek in a manner that allowed me to utilize my time with efficiency. This made me very productive while not experiencing burnout. My supervisor and professor were very cooperative and gave me more time to work on my thesis. Describe a time when your team or company was undergoing some change. How did that affect you, and how did you adapt? My advertising department was merged with a marketing division. My team created commercials while the marketing team was responsible for studying demographics.

Initially, we did not get along so well because we were too different, but quickly realized we could learn a lot from each other.

line and phase current relationship interview

Hence, we were able to improve the advertisement by learning about who was being targeted. A great team is a diverse team that learns from each other. What did you do to learn the ropes?

Although I learned the basics of hardware design from teachers, it was not enough to design complex electronic circuits. I asked my experienced colleagues about some tips and tricks in designing circuits, and they were kind enough to help me.

I also took time every evening after work to learn on my own, to implement those things the next day. This kept me ahead of the curve and I made a good impression on my employer. Give me an example of a time when you had to think on your feet in order to delicately extricate yourself from a difficult or awkward situation. There was someone at the party acting very rowdy and creating unnecessary commotion.

At one point, it felt very unsafe for everyone, so my friends and I informed the authorities at the club and they swiftly came over and dealt with that individual. When in times of danger, it is best to let somebody else take care of it, especially when they know how to deal with it. Tell me about a time you failed.

How did you deal with this situation? I conducted several experiments to attempt to attain certain results, but it was to no avail. After much contemplation, I told my teacher that it was impossible to get those results that we thought were possible.

In science, a negative outcome is viewed poorly. However, I convinced my teacher to change the scope and goal of the project. This time around, I got results which were more realistic and I could work with it to derive a conclusion. It was not a failure, but a learning experience. Tell me about a situation in which you have had to adjust to changes over which you had no control.

line and phase current relationship interview

Normally, I teach a handful of subjects that I was qualified and experienced to teach. However, due to a shortage of personnel, all teachers had to take various more classes. I normally taught sciences but after the reshuffle, I taught math as well. The upside was that I was able to revise my math knowledge, which is also important for science.

I adapted quite well to this change. Whereas I was more proactive and assertive, he was more reserved and did his own thing in his own way. I did not want to tell him to be more assertive because he was very good at what he was doing, doing it his own way.

I toned down my type A personality traits and made him aware that although we were quite different, we could get along and get the job done. We successfully completed all projects and developed a good friendship. How was your transition from high school to university? Did you face any particular problems? How did you handle them? I knew my friends since elementary school, so I always had a tight-knit group of pals that were like my second family.

I was looking forward to university, because I could meet new people from various backgrounds. While it was daunting at first, I quickly introduced myself to others and got to know many great people who I can proudly call my friends. When the studying pressure was building up, I could rely on them to cheer me up and give me some encouragement. Tell me about a time you had to be very strategic in order to meet all your top priorities.

line and phase current relationship interview

In addition, I had to write a report of everything I learned at the factory. To utilize my time efficiently, I jotted down notes in between breaks at the factory, since all of the information was fresh on my mind.

As a result, I was already preparing the report as I was working in the factory. When I was at the head office, there were some breaks in between emailing and calling suppliers. That is when I continued writing my report.

I made sure to use all the time available to me to work and complete tasks punctually. Describe a long-term project that you managed. How did you keep everything moving along in a timely manner? The semester lasted 4 months, so I segmented the entire fabrication process into several steps that had to be completed over the entire semester.

Each week, we dealt with one particular step, starting with silicon processing, moving on to pyrex processing, and finally ending with wafer bonding. Each week, students presented the results of their experiments in the form of a presentation. This was used to assess how much they actually learned. Tell me about a time your responsibilities got a little overwhelming. I had a project plan that outlined what had to be achieved. After the first couple of months, when I faced a few hurdles, I realized that reaching every single milestone might not be feasible in such a short amount of time.

I had to reassess which were the most important aspects to consider and focused entirely on those things. I still arrived at excellent results at the very end of the time frame. Tell me about a time you set a goal for yourself. How did you go about ensuring that you would meet your objective? So I enrolled in online courses and slowly learned some programming languages, like JavaScript and Python.

Three-Phase Systems in Power Applications - Electrical Engineering Questions and Answers

I practiced almost every day and made good progress. Every week I completed one chapter of each language and was inching one step closer to developing an app. Now, after 8 months of training, I have developed an app already and am working on my own website.

Give me an example of a time you managed numerous responsibilities. I am an English teacher by trade, with a degree in English. I wanted to hold spelling bee tournaments at the school to get students interested in learning new English words. So I took on that responsibility and taught students the format. I myself am a very sporty person and I wanted to take charge of the sports events at school.

I managed the entire event and coordinated with other staff members. Describe a situation that required you to do a number of things at the same time. I have to merge all of these to create a great user interactive experience. Moreover, I need to keep checking for bugs on the back-end so that users can access a large database with ease, all while navigating through a well-designed site with great interaction.

It is not easy to do both of these things, in a time when people are specializing in one portion. However, I get to learn everything and I deliver excellent results, overseeing the entire project. How do you prioritize projects and tasks when scheduling your time? I complete the ones that take the least amount of time first, so that those clients receive their work as soon as possible.

If a job takes more time and effort based on my estimation, I inform those clients and give them a complete breakdown so that we agree to deliver it on a later date. As a result, I am never lost and always know what to do on which day. Tell me about a project that you planned. How did your organize and schedule the tasks? I outlined the entire project duration and segmented it into several parts — research the company, design the building, construct the building.

I worked with several other engineers and delegated tasks to save a lot of time so that I could focus on what I was good at — overseeing the entire construction process.

We completed the project on time and the tech firm was pleased. When has a project or event you organized not gone according to plan? How did you feel? The inauguration ceremony of the concert was supposed to have a fantastic orchestra with fireworks and a video playing on a large screen. Throughout the performance, the music was playing and the fireworks were exploding, but the video never played. Due to technical difficulties, the audience never got to see the amazing footage we shot.

I felt very bad at the time, because all that hard work went down the drain. However, I learned from this experience and prepared extra hard for future concerts. Give me an example of a time when you were able to successfully persuade someone to see things your way at work. When I was working under them before, I noticed there were some processes that could be streamlined and optimized further. Now that I was a line manager like everybody else, I presented my case to the rest of them and showed factual evidence on how to improve the production process.

They were initially reluctant but soon came around and saw things my way. Describe a time when you were the resident technical expert. What did you do to make sure everyone was able to understand you? Since the recruits were fresh graduates, they relied on me to learn technical things of the semiconductor industry.

I provided reading materials to all the trainees so that they can learn things in their spare time. Whenever they had questions, I was open and ready to answer them. I wanted them to feel welcome to clarify their doubts and since I have the knowledge, I wanted to impart it to them.

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Tell me about a time when you had to rely on written communication to get your ideas across to your team. Emails can be a tricky medium of communication to get your message across. I made sure to be polite and respectful while still being assertive in informing my team members why they needed to put in more time and effort. I did not want to come across as a mean boss that demands things from their employees.

I expressed how I would also work extra hours with them to get the job done on time. Give me an example of a time when you had to explain something fairly complex to a frustrated client. How did you handle this delicate situation? They have complete knowledge of automobiles, but rely on us to deliver electronic components for their cars. I had to convince a representative of Daimler why they required these parts from us.

I kept thing very simple after I realized a lot of the technical information was going over his head. I connected the components to the benefits that both the company and the drivers of cars will gain. They quickly realized that they required this circuitry in their cars and ordered a large volume of it. Tell me about a successful presentation you gave and why you think it was a hit. At such a young age, it was an excellent opportunity to display my presentation skills to many esteemed guests.

Since I knew my topic inside and out, I wanted to guide the audience through the presentation with a story of how I learned about it. This made my presentation of the results more personal and looking at the faces of the audience members, I knew it was a success.

They appreciated my efforts greatly. When have you had to present to a group of people with little or no preparation? What obstacles did you face? I was responsible for working on a task in a particular sector but since I knew the language the clients were comfortable in, my company wanted me to represent them in a meeting.

I had an hour to prepare, to look at the findings we had at the time. After the quick research, I talked to the clients and made them well aware that I was the new kid on the block. However, I presented all of the results I knew with confidence and the clients were quite pleased. My company was quite impressed how I gave an impromptu presentation and since then, I was relied upon for presentations.

How did you do it? With social media platforms abound, my partners wanted to create another competitor in that sector. I convinced the team why it would be beneficial to society and how we need to manage money properly. They understood why this was necessary and we then started to create our first fintech app.

Three-phase Y and Delta Configurations

Give me an example of a time when you were able to successfully communicate with another person even when that individual may not have personally liked you or vice versa. Being very social, I love talking with people to get to know them. However, I understand that there are many people who are not as talkative and more of an introvert. One of my classmates did not necessarily like my personality because he thought it was overbearing.

I tried to befriend him and wanted to get to know him, but he was quite reserved. I decided that it would be best to not be so forward but rather talk to him in a calm manner. He really appreciated that and he actually opened up more, expressing himself more. What obstacles or difficulties have you ever faced in communicating your ideas to a manager? I gathered a lot of statistics and created charts and graphs of the data.

I discovered that some products were selling well in particular areas, although the company did not market them heavily in those areas.

Three-phase Y and Delta Configurations | Polyphase AC Circuits | Electronics Textbook

I talked to my manager about how we can improve the marketing of products in these areas to increase our revenues. My manager was quite hesitant to listen to me, perhaps because I was just an intern. However, after I presented all of the evidence, it became quite evident to him that this is what needed to be done.

Tell me about a time in which you had to use your written communication skills in order to get an important point across.

line and phase current relationship interview

To ensure excellent customer satisfaction, we always send an email to buyers who will not be able to receive their purchased goods. I explained very clearly why Amazon failed to deliver this particular product and sincerely apologized for any inconvenience the customer experienced.

As a gesture of good faith, I offered this customer a coupon of the same value to purchase another product in its place.

When have you chosen to communicate a particular message in person as opposed to via email even though the email channel would have been a lot faster? It would only be fair since I worked with them for years. It was difficult, but I explained the entire situation from the very beginning and outlined what would happen to the personnel in this division.

Maybe an email would have been easier, but personally interacting with people you have worked with for years shows that you care about the working relationship. Tell me about your proudest professional accomplishment. As a stockbroker, I pick up phone calls every minute and secure the buying and selling of stock from big shot investors.

I once had a famous investor call me to potentially buy stock. I explained the stock, which company it belonged to and how the company was fairing.

The investor was hesitant as the company was fairly new, but I ensured him that tech startups are booming now and that they will grow exponentially. After several minutes convincing, I got confirmation to buy a large amount of stock. It was the biggest deal I made in my career and it set me up for success later on.

Describe a time when you saw some problem and took the initiative to correct it rather than waiting for someone else to do it. The next semester, I was hired as a teaching assistant to teach the exact same subject. I had many ideas to improve the teaching style of the lab course. I suggested that instead of doing the practical work at the end of the semester, it would be more beneficial to work every week in the lab and implement the theoretical knowledge.

Also, I recommended that students should deliver presentations of their results. This increases student participation and learning. Tell me about a time when you worked under close supervision or extremely loose supervision. It was challenging to learn things when my mentor was not able to tutor me properly. I understood his predicament so I did not bother him much.

Instead, I conversed with my colleagues who knew the trade very well and learned a lot from them. Since some of them were once interns as well, they gave me very good guidance and supervision to help me excel in this position. Give me an example of a time you were able to be creative with your work. What was exciting or difficult about it? I once had to design a background image for a website and I had complete freedom to do whatever I want. I wanted to explore many different options and use full creativity to get the right design for this website.

Sometimes it is difficult to know where to go when a client does not provide some instructions, but it is very rewarding when your own efforts are appreciated by the client. Tell me about a time you were dissatisfied in your work.

What could have been done to make it better? I had to write an article on a video game, but I did not play that game or was interested in that particular genre. I had to read other sources and act as if I played that game passionately.

102 Behavioral Interview Questions and Answers

Although my boss liked my writing, I was not satisfied with it because it felt pretentious. I then decided to only write articles on games that I played, because it feels more authentic. What has been the most stressful situation you have ever found yourself in at work? Many people have not yet fully understood this relatively new material. I wanted to find something out but for months on end, I could not make any headway.

I always kept on hitting a brick wall, which was very stressful. I was falling behind on my schedule. I decided to cleanse my mind and refresh everything. I took a different approach this time around and I made a new discovery, making progress towards my goal.

What have you done in the past to prevent a situation from becoming too stressful for you or your colleagues to handle? As a merchandiser, I need to know every single aspect because I need to find ways to reduce cost while still delivering an excellent product.

However, one should avoid startling potential respondents by running up to them and pulling out the questionnaire for interview. Blending into the local context as much as possible is obviously the best strategy. One should always be sensitive to the fact that most people may be suspicious of outsiders. The timing of the interview can be very important. One should be aware of the daily schedule, seasonal activities, and work habits of potential respondents. The introduction to an interview is crucial.

A good introduction can effectively gain the respondent's co-operation and a good interview, but a bad introduction could result in refusal to co-operate or biased responses. This should be made according to local custom. Being approached by a stranger will make the potential respondent feel uncomfortable. The approach of an interviewer is still an unfamiliar experience to most people. Many people are suspicious of outsiders and particularly interviewers.

Some may think the interviewer is an 'official' who has come to check up on them for taxes. Certainly many potential respondents will fear that the information they give will be used against them at a later date, or that the interviewer is trying to probe family secrets.

To ensure cooperation it is important to: Respondents can be encouraged to think that the interviewer is interested in conversation rather than interrogation. The respondent should be given a brief background as to the nature and purpose of the study.

line and phase current relationship interview

If one can indicate that as a result of the study it will be possible to develop better and cheaper products for the respondent, then they should be encouraged to co-operate. Additional points that may help to put the respondent at ease could include: It is advisable that marketing researchers should adopt the language of those from whom they hope to obtain information.

The respondent can be assured that the interview will be brief. It is unwise to be deceitful here, otherwise there is a danger that the interview may be stopped mid-way by an angry respondent. The respondent can be assured that the interviewer will not reveal the respondent's identity and will use the data only in aggregate form or give the results to official organisations.

After all relevant topics have been covered or the respondent's time exhausted, the conversation should be brought to an end. If the weather is unfavourable too hot or too wet or the respondent seems pressed for time it is best to prematurely stop the interview.

The departure is best done gracefully, naturally and not too abruptly. The business-like 'Got to go' departure should be avoided. Interview recording All the best interviewing is useless if it has not been adequately recorded, so it is important to ensure good recording conditions. In an open-ended interview it is difficult to make notes on everything during the interview.

The best approach in team-work is to appoint a scribe, i. How long one waits before writing up full field-notes depends on the setting, and the interviewer's personal style but it should be borne in mind that an interviewer's memory is limited. It is surprising how facts, ideas and important observations that one thinks one will never forget quickly slip away.

Half of the details from an interview can be forgotten within 24 hours, three-quarters can be lost within 2 days and after this only skeletal notes can be salvaged. Jotted notes will help prompt memory later, but it is best to write up interview notes while they are still fresh in the interviewer's mind after the interview or at the end of the interviewing day.

A tape recorder can often be useful. It can also enable data to be left until such time as analysis can be applied more rigorously and in a more leisurely way. It should be borne in mind, however, that not everyone likes to be tape-recorded. If taping is contemplated the respondents' permission should be sought first. Sources of error and bias In personal interviews there are many ways in which 'errors' can be made by both the respondent and the interviewer, and this can lead to 'bias' in the results.

The objective of the interviewer should be to minimise the likelihood of such bias arising. Respondent induced bias Faulty memory: Some respondents may answer a question incorrectly simply because they have a poor memory. The key to avoiding this problem is to steer clear of questions requiring feats of memory. For example, questions such as, "Can you tell me what your crop yield was four years ago? Other aspects of faulty memory that were mentioned in the previous chapter were telescoping and creation.

There can be a tendency on the part of some respondents to exaggerate claims about their conditions and problems if they think it will further their cause and lead to improvement in their well-being. The interviewer must be alert to, and note any, inconsistencies arising.

This is best achieved by checking key pieces of information with a variety of sources. Failure to answer questions correctly: If rapport is not developed sufficiently, the respondent may be unwilling to respond or fail to give sufficient attention or consideration to the questions asked, and if the respondent does not understand a question properly he may give inappropriate answers.

The interviewer needs to ensure that the respondent fully understands the questions being asked and is responding in the appropriate context. Misunderstanding purpose of interview: Some respondents may perceive the purpose of the survey to be a long-winded form of 'selling', particularly if the interviewer is asking them what they think about a new product. Their comments, therefore, about such issues as 'propensity to purchase' need to be looked at within a context where they may be expecting to have to buy the product at some stage and are trying to strike a hard bargain.

To avoid such problems arising it is important to carefully explain the objectives of the survey, the identity of the interviewer and sponsor, and what is required of the respondent, prior to the interview proper. Y-connected sources and loads always have line voltages greater than phase voltages, and line currents equal to phase currents. If the Y-connected source or load is balanced, the line voltage will be equal to the phase voltage times the square root of 3: Take close notice of the polarity for each winding in Figure below.

At first glance it seems as though three voltage sources like this would create a short-circuit, electrons flowing around the triangle with nothing but the internal impedance of the windings to hold them back. Due to the phase angles of these three voltage sources, however, this is not the case. If they do, then there will be no voltage available to push current around and around that loop, and consequently, there will be no circulating current.

Starting with the top winding and progressing counter-clockwise, our KVL expression looks something like this: Indeed, if we add these three vector quantities together, they do add up to zero.

Another way to verify the fact that these three voltage sources can be connected together in a loop without resulting in circulating currents is to open up the loop at one junction point and calculate voltage across the break: Sure enough, there will be zero voltage across the break, telling us that no current will circulate within the triangular loop of windings when that connection is made complete.

Conversely, because each line conductor attaches at a node between two windings, the line current will be the vector sum of the two joining phase currents.

With each load resistance receiving volts from its respective phase winding at the source, the current in each phase of this circuit will be