Q2 / explain the operation of spit phase motor
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Q: Example12/ Open write T-L with L=30 m, ZR = Zo = 502, f=50 MHZ Find Z, and Za d = 10 m Use the…
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- Permanent Magnet Moving Coil (PMMC) meters can be used for both AC and DC measurements. O a. TRUE O b. FALSE12) Welding generator will have A. Lap winding B. Wave winding C. Delta winding D. Duplex wave winding E. Star windingArmature reaction in an alternator affects generated voltage/phase Select one: O True O False
- Introduction and explanation about alternator regulation4. Explain the relationship between back emf E, terminal voltage V and coil voltage drop IR in DC motor and generator respectively. i. Describe how the field strength affect the performance of DC motor and generator. ii. Explain how an external resister changes the DC motor and generator performance.Calculate the reactance voltage for a machine which runs at 900rpm number of commutator segments is 65, brush width is 1.74 (in commutator segments), coefficient of self induction is 153 the conductor current is 27A.
- Match the following A cathode Choose... electrodynamometer instrument Choose... In single phase energy meter, is placed at the edge of Aluminum disc, which controls the speed of the disc. O series magnet O brake magnet O shunt magnet O M type magnetDC machine questionThe protection against direct lightning strokes and high voltage steep waves is provided by a. Earthing of neutral b. Lightning arresters and ground wires c. Lightning arresters d. Ground wires
- Explain the role of impurity and dropping mechanismQ1 Complete the answer : A 6 pole lap wound generator has 22 slots with 22 conductors/slot and the average emf generated in each conductor is 2.22 volts. Then the Total EMF generated in volt is..........fill inthe blank : field winding has large numberofturns of thin copper wire. a. Shunt b. Series c. Compound d. separately excited