Electric Machinery Fundamentals Fourth Edition

The problem I am going to work on is #68 on page 539 . The

TCO 1 Chapters 1, 2, 3, 5, 6, 13 and 15 Weeks 1, 2, 4 and 5

\emph{Testing Strategy:} The graph between applied load in the range 0.5 grams to 575.5 grams and change in voltage is plotted. The graph obtained (see Figure~\ref{f:olggraph}) shows the inconsistent readings at many points for different combination of force applied. Also, the best curve equation is close to cubic, which is indication of bad design.\\*

3. The chapter can be called the calm before the storm because everyone was happy and it was the last day before the fiesta.

In book 9, we

2. Try increasing the resistivity of the resistor, ρ. How does this change the “look” of the resistor? Describe how that relates to the formula you just wrote (direct, indirect relationships, etc.). What happens to the value of “R” (Resistance)? Is this something that can be changed in a resistor that you would buy in a store to use in a circuit?

Boylestad, Robert L. Introductory Circuit Analysis, VitalSource for DeVry University, 12th Edition. Pearson Learning Solutions, 11/2012. VitalBook file.

1. Introduction The electric motors are widely used in model life. In task 3, it is required to design an escalator in this task.

Fig. 5.5. (a) Grid voltages and grid currents at the LV side (b) Dc link Voltage fewer than 60% SLG voltage sag produced at MV side of the transformer.

studied by the Electric Power Research Institute, the federal national labs, and others, with some

Electric Scooters are thought to be for kids but in the market there are electric Scooter for Adults also available. These scooters aren't only fun and games for children and teenagers. They can and are also used by adults to unleash their inner child and travel short distances on a budget. These scooters are an economical and environmental friendly mode of transportation for short distance errands like going to the grocery store etc.Most of the scooters for Adults can also be used by children as they also have lower speed caps and all the necessary safety features. These scooters work very well on flat level grounds but some of them struggle a bit on inclines when carrying heavy riders. Overall Electric Scooters for Adults satisfy the need

Each question is marked out of 25%. The technique and detail parameter was subtracted from the paper directly used as a instruction and reference.

1) are derived first by algebraically solving the equivalent circuit shown in Fig. 2. These extreme values include maximum torque, maximum mechanical power, maximum power factor, maximum efficiency, and maximum electric power. It will be shown that the torque and mechanical power extrema can be expressed in analytical forms while the power factor, efficiency and electric power extrema need to be solved numerically. It will then be shown that these extrema can also be determined graphically using the circle diagram method. The circle diagram method is an old method but can still be found in some textbooks (e.g., [3]-[4]). The research into graphical methods for induction motor analysis is still active (e.g., [5][11]). One may consider that the circle diagram method is limited to qualitative evaluation because it cannot give accurate results. In fact, if the circle diagram method is carried out by a modern computer drawing tool that allows the user to draw geometric diagrams with parameters (i.e., coordinates, lengths, angles, etc.) to the accuracy of four decimal places, then the circle diagram method is able to give all the aforementioned performance extrema with required accuracy. Unlike the circle diagram method used in [10] and [11] that is based on the approximate equivalent circuit of induction machine and is limited to motoring mode of operation, the circle diagram method used in this paper is based on

Electrical Motors Control II Project The class I am now taking is Electrical Motors Control II. Motor controls. A motor controller is a device or group of devices that serves to govern in some predetermined manner the performance of an electric motor. A motor controller might include a manual or automatic process for starting and stopping the motor, selecting forward or reverse rotation. This project was put together by me, Olen and Melvin. Constructing a motor control panel consists of many factors, such as; meeting the customer’s specifications, desired operations, state and local regulations. Every electric motor has to have some sort of way to control it. The motors will have various ways to be started, stopped, reversed, and even ways to control the speed of the motors. These features can be complex depending on the task that the motor will be performing. By being able to do these things with the motors in various ways, helps make the task at hand a much simpler and less time consuming process. Allowing workers to get their job completed more efficiently. In this project that we were instructed to build we started with 240 volts AC power. We ran from the main three phase power to three fuses, then to our starter and overloads then onto our first motor. We repeated the process of Motor 1 for the second motor as we ran to three different fuses than that of the first motor. When then ran from the fuses to a transformer to step the voltage down. From the transformer we

GadgetCo is a family-owned large manufacturing company with over five-hundred employees located in the southwest suburbs of Chicago. They produce electric motors that run devices from computers to motorized scooters (Lewis University, 2016). Electric motor production is vital to the company’s overall success. Safety must be taken into consideration when manufacturing these electric motors since they will be used by the public. The customer will always be placed at the top of the list when it comes to safety. GadgetCo’s vision and mission is “to create motors fast enough to meet the demands of their fast-paced customers” (Lewis University, 2016). There are dilemmas that have a direct conflict with Drew, the Vice-President of Product Development, he needs to inform upper-management that there may a delay in shipping a new product to a customer overseas. This will be difficult to convey since this product alone is relied on to support their company during the 2008 financial crisis.