3. What are the different ways of getting mechanical energy to run a generator?
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- 4 What type of conversion is happening in a DC Generator. a. DC electrical energy to mechanical energy b. Mechanical to DC Electrical Energy c. Mechanical to AC Electrical Energy d. AC electrical energy to mechanical energyA. The brushes used in a DC generator a) ride against the commutator segments. b) are made from material softer than the commutator segments. c) are generally marked Al and A2 d) all of the above B. A magneto is a DC generator that uses for its pole pieces. a) electromagnets b) permanent magnets c) either "a" or "b" d) neither "a" nor "b"Iron losses in a DC machines are independent of variations in: * voltage and current speed and current current voltage speed load speed and voltage
- You are working as an electrician in a large steel manufacturing plant, and you are in the process of doing preventive maintenance on a large DC generator. You have megged both the series and shunt field windings and found that each has over 10 M to ground. Your ohmmeter, however, indicates a resistance of 1.5 across terminals S1andS2. The ohmmeter indicates a resistance of 225 between terminals F1andF2. Are these readings normal for this type machine, or is there a likely problem? Explain your answer.Electric machines2Electrical Machines 2 What are the different parts of electromechanical energy conversion equipment and the function of every parts?
- Q3 A – The benefit for the following: Stroboscope, Tachometer, Prime mover, Torqometer. B – Discuss the difference between critical speed and critical resistance of D.C generatorElectrical machines questionif a dc generator delivers 180w to a load, what is the minimum hp needed to drive the generator(assume 100% efficiency)
- 1. A motor a. b. machine C. electrical d. generator 2. The commutator connection in a wave winding has a distance of 350 a. b. is a mechanical device that can be used to converts energy. 270 C. 180 d. 360 3. How many parallel paths a 4-pole, duplex lap winding have? a. 2 b. 6 c. 8 d. 4 4. It is the distance between the commutator connection of a DC machine? a. Commutator pitch b. 360 electrical degrees c. Parallel paths d. Coil pitch 5. The distance between two coils sides. a. Commutator pitch b. 360 electrical degrees electrical degrees.Please sir solve this question, electric machines0.1 Give a short answer for only Six of the following 1. Explain the construction of turbine meter and mention for what we use it. 2. Mention the Applications of Pyroelectric sensors. 3. Explain briefly Hall effect sensor's application by measuring the fluid level in a container. 4. Explain how could we use potentiometer to measure linear displacement and angular displacement. 5. According to electrical circuits and electric fundamentals what's the evident difference between Eddy current proximity sensor and Inductive proximity sensor? 6. What's the purpose of putting an inner track with only one hole in optical sensor? 7. What's the reason behind using Wheatstone bridge with strain gauge sensor?