...5.7 Necessity of D.C. Motor Starter At starting, when the motor is stationary, there is no back e.m.f. in the armature. Consequently, if the motor is directly switched on to the mains, the armature will draw a heavy current (Ia = V/Ra) because of small armature resistance. As an example, 5 H.P., 220 V shunt motor has a full-load current of 20 A and an armature resistance of about 0.5 . If this motor is directly switched on to supply, it would take an armature current of 220/0.5 = 440 A which is 22 times the full-load current. This high starting current may result in: (i) burning of armature due to excessive heating effect, (ii) damaging the commutator and brushes due to heavy sparking, (iii) excessive voltage drop in the line to which the motor is connected. The result is that the operation of other appliances connected to the line may be impaired and in particular cases, they may refuse to work. In order to avoid excessive current at starting, a variable resistance (known as starting resistance) is inserted in series with the armature circuit. This resistance is gradually reduced as the motor gains speed (and hence Eb increases) and eventually it is cut out completely when the motor has attained full speed. The value of starting resistance is generally such that starting current is limited to 1.25 to 2 times the full-load current. 5.8 Types of D.C. Motor Starters The stalling operation of a d.c. motor consists in the insertion of external resistance into...
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...Readers who have been waiting for a worthy successor to Suzanne Collins’ The Hunger Games will find it here. Dystopian sci-fi at its best, Starters is a terrific series kickoff with a didn't-see-that-coming conclusion that will leave readers on the edges of their seats . . .” raves the Los Angeles Times. In the future, teens rent their bodies to seniors who want to be young again. One girl discovers her renter plans to do more than party--her body will commit murder, if her mind can't stop it. Sixteen-year-old Callie lost her parents when the genocide spore wiped out everyone except those who were vaccinated first--the very young and very old. With no grandparents to claim Callie and her little brother, they go on the run, living as squatters, and fighting off unclaimed renegades who would kill for a cookie. Hope comes via Prime Destinations, run by a mysterious figure known only as The Old Man. He hires teens to rent their bodies to seniors, known as Enders, who get to be young again. Callie's neurochip malfunctions and she wakes up in the life of her rich renter, living in her mansion, driving her cars, even dating Blake, the grandson of a senator. It's a fairy-tale new life . . . until she uncovers the Body Bank's horrible plan. . . .It’s a fairy-tale new life, until she discovers her renter’s deadly plan. STARTERS was one of my favorite reads last year, and even though it is a very different book than LEVEL 2, the main characters Callie and Felicia do have some things in...
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...action is wrong because everyone should be treated equally no matter what your race, religion, or gender is. I agree with Anastasia because everyone should be given the same amount of help. Anastasia believes that flat tax is wrong/right because There’s an s under my clothes On my chest where no one else can see I light up when the doors are closed Yeah I’m free yeah And I wish I could make my move I can tell that you’re really into me And I don’t got a thing to lose, in my dreams, in my dreams Im a bad ass, jumping off the moving train Im a Jane Bond, putting all the guys to shame Im a wild card and Im going to steal your game You better watch out Im a fire starter Make your blood run faster I melt hearts like water Yeah Yeah oh Yeah Yeah I might look all innocent But the embers are burning inside of me And Im ready to take that step, can’t you see, cant you see? Im a bad ass, jumping off the moving train Im a Jane Bond, putting all the guys to shame Im a wild card and im going to steal your game You better watch out Im a fire...
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...Carrie Williams AC551 November 10, 2011 Velocity Cellular Case Study Velocity Cellular Case 1. Velocity should treat the “Power Starter pack” prepaid phone plan as a multiple-element arrangement. 2. Velocity should allocate the revenue of $200 between the activation card and the prepaid voucher. 3. A. Velocity should recognize revenue from the activation card and the prepaid voucher. B. Velocity should recognize revenue from the prepaid voucher as the minutes that are used. 4.) Velocity should disclose its use of a multiple-element arrangement in the financial statements. 1. Should Velocity treat the “Power Starter pack” prepaid phone plan as a multiple-element arrangement? According to ASC 605-25-25-5 Velocity should treat the “Power Starter pack” as a multiple-element arrangement. “In an arrangement with multiple deliverables, the delivered item or items shall be considered a separate unit of accounting if all of the following criteria are met: A. The delivered item or items have value to the customer on a standalone basis. The item or items have value on a standalone basis if they are sold separately by any vendor or the customer could resell the delivered item(s) on a standalone. In the context or a customer’s ability to resell the delivered item(s), this criterion does not require the existence of an observable market for the deliverable(s). B. There is objective and reliable evidence of the fair value of the...
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...BUS 551 Conversation Starter For Decision-Making Student Name: Xinzi Li Student Number: 11761204 Conversation Starter After I read the article and eBook, I got some experience and found that making decision is a complex part of our daily lives. Nowadays, the business environment is full of competitions. In order to reach the organizational goals, the company should think about which choice is the best decision when they face some problems which may influence their benefits. As we know, effective decision-making is essential to an organization's success. So how to make a best decision is the most important thing what the company need to care about. However, making a decision implies that there are alternative choices to be considered, and in such a situation we want not only to identify as many of these alternatives as possible but also to choose the one that has the highest probability of success and the best fits with organizational goals. In fact, it is hard to identify which alternative choices is the best fits with our benefits. So decision making models and approaches is very important for reaching organizational goals. Most people are just waiting for the lucky opportunity to choose the best choice. However, it is waste of time and real opportunity which can increase the profit of their company. Actually, we need to establish a decision model and use it when we meet some problems which we have not met. Here is rational model: 1. We need to define...
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...Comparison of Lady Macbeth and Curley’s Wife. Lady Macbeth is the wife of Macbeth written by William Shakespeare Lady Macbeth desires fame and power more than anything else. She shows a lot of control over Macbeth and is very manipulative towards him. Her desire for power becomes as a danger towards her, she has been driven to the point of becoming insane she cannot bare it no more and commits suicide. Lady Macbeth has been introduced through her own soliloquy which shows she has a lot of power in the role she owns. Curley’s wife is newly wedded to Curley in the novel Of Mice And Men written by John Steinbeck. Curley’s wife is very outgoing and desires attention, in trying to achieve this desire she’s ends up dead from the force Lennie’s big bear like hands. Curley’s wife has been introduced as a ‘tart’. A similarity between Lady Macbeth and Curleys Wife is the fact they are defined by their husbands and hold no individual identity. During the 1600's and 1930's women had no real voice's or ownership to their lives. But each writer contrasted the women differently. Lady Macbeth is not seen as the typical woman of her era but the same can’t not be said for Curleys Wife. Macbeth is Act 1, Scene 5 addresses his wife as 'My dearest partner of greatness'. The superlative 'dearest' shows how important Lady Macbeth is and the amount of respect Macbeth holds for her. Curleys Wife is introduced by candy as being a 'tart'. This shows the lack of respect given to Curleys Wife by the...
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...There are many differences and similarities between relief pitchers and starting pitchers. There are many different types of relief pitchers that each team has in its bullpen. While starting pitcher each team usually has about 5 starters that rotate through each game, which leaves the rest of the game up to the relief pitchers once the starter can no longer go. People do not normally realize that saying a person is a pitcher is quite a general statement. For example starting pitchers is defined as the pitcher who delivers the first pitch of the game to the first batter. Even if that pitcher gets hurt on that pitch he is still the starter. Normally starting pitchers are supposed to go the majority of the game depending on how many innings the game is going to last. If the game is seven innings long a good starter will go about five or six for a solid start. In a nine inning game the starter should go about six or seven. If the pitchers consistently cannot reach his need for innings they will most likely be put in the bullpen. Usually the determining factor in which decides how long a pitcher will go is the pitch count. The pitch count is exactly what it sounds like the amount of pitchers a pitcher has thrown to batters. In the season a starter is expected to be able to throw around one hundred pitches a game and be able to recover for their next start. A starting pitcher must throw a minimum of five innings to qualify for a win in the statistics book. The quality of...
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...Adrian Garza 1/17/15 2nd Period Bubble Lab Experiment 1. What do I want to find out? What I want to find out is if the type of soap will affect the size of the bubble. For this we will test 3 different types of soap brands. 2. What do you think will happen? What I think that what will happen is that the orange soap will produce bigger bubbles than the other 2 soaps. 3. Materials: Straw, Pipette, ruler, beaker 4. Procedure: Mix water and soap together in a beaker Draw solution into pipette, pour half of the pipette onto a smooth surface Grab straw and blow onto the solution that’s on the table, keep blowing until Bubble pops. Measure the diameter of the bubble with a ruler. (Cm) 5. Data Analysis/Results Blue Soap | Yellow Soap | Orange Soap | Trial 1 | 10.5cm | 10cm | 8.5cm | Trial 2 | 11cm | 9cm | 11cm | Trial 3 | 8.5cm | 13cm | 12cm | 6. Conclusion Well the manipulated variable in this investigation are the different types of soap used, while the responding variable is the diameter of the bubble when popped. The amount of soap and the size of the straw were the controlled variables in this experiment. The cohesion from the water allows the solution (or bubble) to expand upwards against gravity, thus making the diameter of the bubble. The soap with the average largest bubble was the yellow soap because of the amount of cohesion that was inside it. The smallest average bubble would be the blue soap. Overall, my hypothesis proved...
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...Playing Guitar: A Beginner’s Guide by Darrin Koltow www.MaximumMusician.com Copyright © 2002 Darrin Koltow Playing Guitar: A Beginner’s Guide Page 2 Contents Contents......................................................................................................................... 2 Acknowledgements ........................................................................................................ 4 Also on MaximumMusician.com ..................................................................................... 5 Also at MaximumMusician.com................................................................................... 5 Introduction..................................................................................................................... 6 About the Author ......................................................................................................... 6 Practicing ....................................................................................................................... 7 How to Hold the Guitar ................................................................................................... 8 Tablature and Chord Diagrams....................................................................................... 9 Tablature..................................................................................................................... 9 Resources ...........................................................................
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...Series Resistance Starters Construction and Operation In this method, resistors are temporarily placed in series with the motor windings during startup. A voltage drop is created across the series resistors during startup, resulting in a lower starting voltage applied to the motor’s terminals. Once the motor has accelerated to normal operational speeds, the resistors may be “removed” and the motor allowed to operate under normal conditions. At startup, the start contacts are closed, forcing the starting currents to flow through the series resistors. Once the motor has been allowed sufficient time to accelerate, the run contacts are closed, thus bypassing the resistors. A timer may be utilized within the control circuit to allow the motor to transition from “start” to “run” operation automatically. Applications 1. Usually on low voltage (less than 600 v). 2. Where current reduction requirements are low, or where load torque during acceleration is minimal. 3. Not often used with large motors because of the high heat loss in the resistors. 4. May be used for full acceleration or for system voltage recovery. Advantages 1. reduced heat loss 2. greater ease of start 3. (If correctly designed and constructed), this method will cause the motor to accelerate the load to almost full speed with the resistors in circuit before they are bridged out. Disadvantages 1. The resistors must be cooled in between starts because of the heat build up in the resistors during start...
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...Medium Voltage Motor Starter Name: Course Title: Professor’s Name: Abstract This paper purposes to examine general considerations in the design of 4160V motor starters into the switchgear. Particular focus is on the safety, maintenance, protection coordination, and operation impacts of including the 4160VMedium Voltage Motor Starter, into switchgears of important systems. In light of the above, this paper will present an analysis of some of the best practices and techniques used to design Medium Voltage (MV) motors. This encompasses the critical considerations made for medium voltage switchgear commonly found in generation power plants and safe class facilities such as nuclear plant. The primary focus is on power system facilities that are intolerable to any form of power interruptions. Such facilities in areas of utility, industrial, commercial, and residential applications require power systems that have the capacity to provide safe and reliable energy for the utilization of equipment. Since the other earlier designs specifications of MV motor starter already exist, this paper essentially emphasizes the advantages in designing 4160V MV motors starters into MV switchgears with protective relays, switch and circuit breaker control circuits, and solid-state power. Discussions made include the advantages of integrating MV starters in the 4160V switchgear, with regard to fault clearance, maintenance, down time, and operations. The paper summary includes recommendations...
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...https://www.kickstarter.com/projects/470989045/voxskool-music-hub-for-better-health-and-happiness?ref=category VoxSkool Music Hub for better Health & Happiness! by Victoria Beebee 0 backers £0.00 pledged of £20,000 goal 27 days to go Back This Project Remind me This project will only be funded if at least £20,000 is pledged by Mon, Apr 18 2016 3:06 AM AWST. Fleet, UK Music In this day & age we feel worn down by so many daily pressures & emotions. We believe MUSIC is the MEDICINE of NOW! Share: Tweet Share Embed Pin Post Victoria Beebee First created | 0 backed voxskool.com See full bio Contact me Campaign Updates 0 Comments 0 Community Back This Project Remind me About this project Hey, I'm Victoria and I've been singing, writing and performing from a very early age and had a life of touring around the world and releasing my own material, which was amazing to experience with lot's of musicians and respected artists, as well as meeting brilliant every day people who loved the music! About 10 years ago I started to coach kids and adults to sing and express themselves through music, as I realised music has the power to change your mood from negative to positive and really aid in the healing of the mind, body and spirit. So I continued to coach and began gaining lots of new students. Each year we would gather everyone, all ages and cultures together and put on a concert for the local community, often...
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...PROJECT REPORT “To identify the market potential of starters in M.P. and measure the level of awareness, acceptability and availability for LnT Agri-products”. Submitted By: Sanil Jain NMIMS, Mumbai 06/06/2013 Submitted To: Mr. Rajiv Tandon Project Guide, L&T 1 PREFACE This report represents the primary as well as secondary market research performed and the learning garnered while working on the project in Larsen & Toubro, ESP – Agri Business department. The objective as decided by my project guide was to identify the market potential of starters in M.P. and measure the level of awareness, acceptability and availability for LnT Agriproducts. First and foremost it required understanding of the utility of starters and the factors that affects the potential sale of pumps and starters used in a region. The secondary research was hence vital to find out these factors across all the districts of Madhya Pradesh and analysing their impact on potential sale. This report is by large based on the primary research conducted across eight districts of Madhya Pradesh, viz, Ujjain, Khargone, Sehore, Raisen, Hoshangabad, Sagar, Vidisha and Ashoknagar which involved performing surveys on Retailers, Stockists and farmers at these locations. The report seeks to analyse the responses of the stockists, retailers and farmers districts in order to determine the potential sale and existing market share of LT-LK starters and provide recommendations to improve the same. Both quantitative...
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...blend of Streptoccoccus thermophilus and Lactobacillus delbruekii subsp.Bulgaris (LB) cultures. Usually, the making of yoghurt involved the pretreatment of milk follow by the homogenization, heat treatment, cooling to incubation temperature, inoculation with starter, fermentation , cooling, post fermentation treatment, chilling and lastly packaging for commercial yogurt production. In this experiment, the making of yoghurt followed the batch process. The 1000ml of UHT milk is mixed with some milk powder to increase the content of milk solid non fat in the milk in order to improve the texture with the help of protein functionality. The equipment used for mixing is sterilized so that the contamination of products with phage and spoilage microbes is reduced to minimum. The mixture of milk is then double boil in boiling water to provide a sterile environment for the starter culture to grow while denature whey protein to from a stable gel that disallow the occurrence of syneresis. The heating of the milk is also done to break down the milk constituents to provide nutrients and reducing condition for the starter culture. One of the constituent is Sulphydral compounds which are the nutrients and reducing condition for this starter culture. In addition, heating process also remove air from the medium to aid the anaerobic process that is going to occur during fermentation. When the heated milk reach the desire temperature, it is cooled down in ice water bath. Then two spoon of fresh yoghurt...
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...owners. Windows Vista Starter Overview Windows Vista Starter is intended to be an entry-level computer for users and their families in countries that have developing technology markets. Windows Vista Starter is distributed in 139 countries and in 70 different languages. Windows Vista Starter is only available preinstalled on computers distributed by system builders and OEMs. Windows Vista Starter looks like other Windows operating systems, but a watermark of the Windows Vista Starter logo has been added to the desktop to distinguish Windows Vista Starter from other Windows Vista operating systems. First-time home computer users can take advantage of the core Windows Vista features in a simplified and more affordable version. To simplify the Windows operating system, some features are limited in Windows Vista Starter. Listed below are some of the differences between Windows Vista Home Basic and Windows Vista Starter. In Windows Vista Starter, three programs can run concurrently without a limit to the number of windows that are open. Home networking is disabled. Windows Vista Starter computer can be connected to an existing network, but cannot be the gateway computer. For more information about programming for Windows Vista Starter, read Best Practices in Programming for Windows Vista Starter. Basic Differences You can create multiple user accounts in Windows Vista Starter, but fast user switching is unavailable. In Windows Vista Starter, right-clicking opens...
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