Delmar's Standard Textbook Of Electricity
7th Edition
ISBN: 9781337900348
Author: Stephen L. Herman
Publisher: Cengage Learning
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Question
Chapter 29, Problem 2RQ
To determine
The type of voltage that is produced in all rotating armatures.
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A wave wound DC generator has 6 poles and the armature has 756
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Chapter 29 Solutions
Delmar's Standard Textbook Of Electricity
Ch. 29 - What is a generator?Ch. 29 - Prob. 2RQCh. 29 - Prob. 3RQCh. 29 - Prob. 4RQCh. 29 - What are interpoles, and what is their purpose?Ch. 29 - How are interpoles connected in relation to the...Ch. 29 - Prob. 7RQCh. 29 - How is the series field connected in relation to...Ch. 29 - How is the shunt field connected in relation to...Ch. 29 - What is armature reaction?
Ch. 29 - What is armature reaction proportional to?Ch. 29 - What are eddy currents?Ch. 29 - What condition characterizes overcompounding?Ch. 29 - What is the function of the shunt field rheostat?Ch. 29 - Explain the difference between cumulative- and...Ch. 29 - Explain the difference between cumulative- and...Ch. 29 - What three factors determine the amount of output...Ch. 29 - What is the voltage regulation of a DC generator...Ch. 29 - Prob. 19RQCh. 29 - Prob. 20RQCh. 29 - You are working as an electrician in a large steel...
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- In DC machine winding, number of commutator segments is equal to number of armature coil sides ) number of armature coils ) number of armature conductors ) number of armature turnsarrow_forwardA four-pole lap-wound DC machine armature has 54 slots with single-turn coils. How many armature conductors are required if there are two coil sides per slot?arrow_forwardExplain the following armature winding terminologies (i)commutator Pitch (ii)Coil Side (iii)Pole Pitcharrow_forward
- winding is used to reduce the armature reaction.arrow_forwardwhat are the main differences between a magnetic stirrer and a vortex mixer? Which one is more efficient?arrow_forwardA4-Pole, duplex wave-wound de generator, has 144 slots with 2 coils per slot, each having two turns. If the flux per pole is is 20mWb and the armature rotates at 1500 rpm and the armature develops a power of 25kW, what will be the current in each path (in Amp)?arrow_forward
- Name the principal parts of a rotating electrical machinearrow_forwardA 2 pole wave wound dc generator has 44 slots, each slot having 20 conductors. The flux/pole is 0.018 weber. At what speed the armature be rotated to get an induced emf of 220 V. What will be the induced emf developed if the armature winding is lap connected and runs at the same speed. Speed Generated Emf when lap connectedarrow_forwardWhat is the commutator pitch of a 4-pole, duplex wave-wound armature having 120 commutator bars?arrow_forward
- A wave wound armature of an eight-pole DC shunt generator has 51 slots, eacharrow_forwardQ2) A wave wound DC generator armature has six - pole and 50 slots. Each slot contains 20 conductors. The required generated voltage is 250 V. a) What would be the speed of the armature, if flux per pole is 0.007 Wb? b) If the armature is rewound as lap formation and run at the same speed you found in part a) above, what will be the generated voltage? The flux per pole is 0.007 Wb.arrow_forwardA 8 pole wave wound dc shunt generator runs at a speed of 1450 rpm, has an armature and shunt field resistance of 0.7 Q and 240 Q respectively. The armature has 910 conductors and flux per pole is 0.115 Weber. If the lamp load connected has a resistance of 20 0, determine (i) Generated EMF (ii) Total Resistance (iii) Armature Current (iv) Terminal Voltage.arrow_forward
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