• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Study the structure of a transformer and find out the efficiency and voltage regulation of a transformer.

Extracts from this document...


Subject: Electromagnetic Theory & Applications Transformer Objective: To study the structure of a transformer and find out the efficiency and voltage regulation of a transformer. Introduction: A simple transformer consists of a yoke, U-core with yoke, a clamping device and two coils. By means of the flux linkage through the core, the flux generated by the primary coil will induce a voltage on secondary coil. It can be a step-up voltage device or a step-down voltage device. The following shows the structure. The voltage regulation of a transformer is defined as the variation of the secondary voltage between no load and full load, expressed as either a per-unit or a percentage of the no-load voltage, the primary voltage being assumed constant, Construct of a Transformer: Procedure 1) ...read more.


Based on the above, modify the structure of your transformer. Between the yoke and the U-core, insert some paper provided between them only on one end. 2) Fix the output voltage from the adjustable transformer to 50V 3) Record the V2 with different no. of piece of paper inserted. No. of piece of paper inserted V2 (Volt) 0 5.96 1 5.79 2 5.66 3 5.53 4 5.45 5 5.53 4) Explain why there is some noise on your designed transformer when paper is inserted? When the No. of paper increase the voltage will decrease, it is because papers block the flux flowing through the magnetic so the voltage decrease. Efficiency and Voltage regulation: Procedure 1) Connect the below circuit. 2) Keep the output voltage on adjustable transformer to 60V. Slowly adjust the resistive loading. Fill in following table. A2 (Ampere) V2 (Volt) A1 (Ampere) ...read more.


Secondly the core, the core consists of laminated sheets, about 0.35 - 0.7mm thick, insulated from one another. The purpose of laminating the core is to reduce the eddy current loss. Thirdly leakage flux, the leakage flux can be practically eliminated by winding the primary and secondary, one over the other, uniformly around a laminated ferromagnetic ring of uniform cross-section. But such an arrangement is not commercially practicable except in very small sizes, owing to the cost of threading a large number of turns through the ring. The principal methods used in practice are: 1. Making the transformer 'window' long and narrow. 2. Arranging the primary and secondary windings concentrically. 3. Sandwiching the primary and secondary windings. 4. Using shell-type construction. 1 1 ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our University Degree Engineering section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related University Degree Engineering essays

  1. Electrical circuits. This assignment involved carrying out 5 different experiments relating to electrical circuits. ...

    The power needed to work an electrical component can be determined by the current flowing through it and the voltage applied.

  2. Project Management Theory and practice

    Unimix - supply ready-mix concrete. Unibeton - supply ready-mix concrete only for piling works. Secondary Stakeholders: * Dubai Municipality (DM) * Road & Transport Authority (RTA) * Dubai Electricity & Water Authority (DEWA) * Dubai Internet City (DIC) * Etisalat Telecommunication (ET) * DU Telecommunication (DU)

  1. Low-cost Information Technology in Developing Countries: Current Opportunities and Emerging Possibilities.

    However, due to greater scarcity of capital in SMBs trend has been that the focus on ROI while going for an investment in IT is higher in case of SMBs. What is also being noticed-as per a Frost & Sullivan survey of more than 100 SMBs across APAC-is that SMBs

  2. Jigsaw redesign. We were assigned the task of evaluating and redesigning a given DIY ...

    It can be used in a more artistic fashion than other saws, which typically only cut in straight lines. In this way, it is similar to the rasp and the chisel. Although a jigsaw can be used to cut arbitrary patterns, making a straight cut freehand is difficult even with a guide.

  1. Sunwind case study

    A 50% reduction in set up times will have no overall effect as the process that takes the greatest amount of time has a set up time of zero all other processes are dependent on this Layout changes Old Layout New Layout Assumptions Quality Control There are theoretical quality control

  2. OEM v PMA a case study

    The author will therefore discuss the policy, authority and manufacturing requirements for the local production of aircraft parts for military use. RAPCO A United States company, and a large stakeholder in the PMA parts industry, RAPCO is a large scale producer of replacement aircraft brake parts.

  1. Swimming Goggles Material Selection

    Brief Analysis of Each Part of a Pair of Goggles The following sections will look at the different components in a pair of swimming goggles and will list some possible materials as well as some manufacturing techniques that could be used.

  2. Voice Encryption using RSA Algorithm

    Voice communication has its significance in personal interaction but any breach in this may cause serious losses. There has been a need to develop a new stronger technique which can be efficiently used for encrypting voice signals. Given that almost all encryption techniques for voice have been attacked overly and many of these attacks have been successful.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work