In principle, thermometers made of different material e. Change in electrical properties and v change in radiating ability. A current source inverter accepts input from a power supply that acts as a current source rather than a voltage source. The main function of the attenuator is to reduce theamplitude of the vertical input signal before applying it to verticalamplifier. Nevertheless, in the electrical field it is not always easy to find samples to compare. Download electrical measurements text book, electrical measurements lecture class notes for jntu. Some understanding of the lab instruments is necessary to avoid personal or equipment damage. Data should be professionally and neatly presented in the form of tables, graphs, and plots.
Within some limits, a dc current source delivers a set current to a load without regard to the impedance of the load or the voltage required. To perform short circuit test on a single phase transformer. Present the results of the experiment with data collected from measurements performed. A voltmeter is an instrument used for measuring electrical potential difference between two points in an electric circuit. Lendi institute of engineering and technology approved by a. Electrical measurements in the laboratory practice. To measure the single phase power by using three voltmeter method. Errors, uncertainty, and reliability of signal processing 26 2. Cooper, modern electronic instrumentation and measurement techniques prentice hall. Eengr 233 laboratory procedures and reports the purposes of this laboratory course are to learn the basic techniques of electrical measurements, to practice essential laboratory notebook and report preparation skills, and to reinforce the concepts and circuit analysis techniques taught in eengr 2. Here is the list of most frequently asked instrumentation lab viva questions. Electrical measurements lab viva questions and answers. These topics are chosen from a collection of most authoritative and best reference books on electrical measurements. Autocad viva questions and answers pdf autocad draftsman interview questions with answers are collected from various candidates and we have listed it here for you to prepare for next interview.
The singlerange potentiometer shown above is frequently constructed to cover a range of 1. Electrical field, e, is the negative of the gradient in electrical potential, i. Electrical measurements in the laboratory practice request pdf. The laboratory course provides instruction in general lab practices, measurement methods, and with the design and operation of several. Measurements of screw thread parameters using three wire method.
Lab format each of the lab manual entries consists of several sections. So scroll above and download electrical measurements lab manual and if. The voltage in inputterminal of the vertical amplifier causes the beam to deflect off the crtscreen, is unite low in amplitude. Electrical measurements lab manual for diploma diploma electrical lab manual pdf electrical measurements lab. Practical guide to electrical measurements in low voltage switchboards 2csc445012d0201 122010 1. Pdf ge8161 problem solving and python programming lab. Performance characteristics, static characteristics, accuracy, precision, resolution, types of errors, gaussian error, root sum squares formula. By understanding the devices purpose and following a few simple rules, costly mistakes can be avoided.
A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Power electronics laboratory user manual department of. For now on this particular page we have provided em lab handbook in pdf for jntuh jntuk or jntua students of b. Find materials for this course in the pages linked along the left. Calibration and testing of single phase energy meter 2.
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Below are the list of all eee lab viva questions and answers for electrical students. Identify the common electrical components and measuring instruments used for conducting. Ammeter and voltmeter method, self inductance measurement by general fourarmss bridge network method. To study the vi characteristics of an incandescent lamp.
The process of determining the amount, degree, or capacity by comparison direct or indirect with the accepted standards of the system units being used. Power electronics laboratory user manual department of electrical and computer engineering university of minnesota revised. For example, a dc cromptons potentiometer is designed to measure voltages up to 1. Analog voltmeters move a pointer across a scale in proportion to the voltage of the circuit. And any of these effects may be used to measure the temperature temperature measurement by electrical effects. Basic electrical measurements e80 feb 26, 2012 prof.
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To study and demonstrate the two wattmeter method of measuring the power in 3phase networks. Electrical measurements and measuring instruments e. No name of experiment page no 1 self inductance measurements. The degree of exactness closeness of a measurement compared to the expected desired value. September 8, 2011 rev e safety warning before using this laboratory, read, understand and follow the safety precautions mentioned inside this manual. To measure single phase power by using three ammeter method. As practical skills we aim at the end of the course to be able to perform simple electrical measurements of voltage, current, and resistance, as well as more sophisticated, scientific electrical measurements. So that high amplitude signals may bedisplayed, an attenuator network is placed between the vertical input terminalsof the vertical amplifier. Cooper, modern electronic instrumentation and measurement techniques prentice hall, 1994. Potentiometer calibration of pmmc ammeter and pmmc voltmeter 4. Etic 212 analytical instrumentation 3 1 4 practical viva voce etic 252 instrumentation engineering lab. Electronic measuring instrumentation written notes free. To download the ebooks, pdf file of all electrical engineering subjects practice tests with answers, go to ebooks corner. Classification, absolute and secondary instruments, indicating instruments.
Practical guide to electrical measurements in low voltage switchboards 1 1 electric measurements measurement. Voltage, u, is the difference in electrical potential. Electrical engineering 233 montana state university. The measurements made at that point apply at that point. This book covers the basic theory of electrical circuits, describes analog and. This potentiometer is a form of dc cromptons potentiometer. Measurements of screw thread parameters using two wire method 53 56 12. Bakshi measuremen ts an d measureme nt systems units and standards o f measuremen ts errors i n measuremen ts and their analysi s measuri ng system fundamentals analog ammeters and voltmeters extension of instrument range analo g measureme nt of power and wattmater s measureme nt of energy and energy meter s measureme nt of speedfrequency and power facto r measureme nt of resistance potentiometer ac bridges magneti c measuremen ts. Engineering electronics ece electrical eee faqs measurements and instruments unit wise two marks, short, viva, interviews questions and answers pdf download.
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