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Q1) Answer the following: - 1- if T=295 NM for 4-pole dc motor having 774 conductors, wave wound ,24mwb flux per pole then la = 2-Hence, beyond certain limit any further decrease in results in decreasing the consequently, the characteristic curve as shown in figure below. Armature Reaction Drop Ohmic D Voltage Drop Internal Characteristic External Characteristic Load Current () 3-in figure below Armature flux lines is due to the Field poles are GNA MNA Amatus 4-If the DC shunt generator has an induced open circuit voltage of 127 v and the generator is delivers current of 342 A, the on load voltage is 120 v and field resistance 15 ohm then Ra 5- However, even when the field current is zero, some amount of emf is generated (Represented by fact that there exists some residual magnetism in the field poles. in the figure below) this initially induced emf is due to the N. N, Increase in speed (N) Field Current (1,) is as shown in the figure below. For 6- The connection arrangement to obtain shunt or series excited generators, the field winding is disconnected from the machine and connected across an external supply. UC Armature No Load Supply feld winding constant speed No load voltage (E) Generated Voltage (Eg Terminal Voltage M

Q1) Answer the following: - 1- if T=295 NM for 4-pole dc motor having 774 conductors, wave wound ,24mwb flux per pole then la = 2-Hence, beyond certain limit any further decrease in results in decreasing the consequently, the characteristic curve as shown in figure below. Armature Reaction Drop Ohmic D Voltage Drop Internal Characteristic External Characteristic Load Current () 3-in figure below Armature flux lines is due to the Field poles are GNA MNA Amatus 4-If the DC shunt generator has an induced open circuit voltage of 127 v and the generator is delivers current of 342 A, the on load voltage is 120 v and field resistance 15 ohm then Ra 5- However, even when the field current is zero, some amount of emf is generated (Represented by fact that there exists some residual magnetism in the field poles. in the figure below) this initially induced emf is due to the N. N, Increase in speed (N) Field Current (1,) is as shown in the figure below. For 6- The connection arrangement to obtain shunt or series excited generators, the field winding is disconnected from the machine and connected across an external supply. UC Armature No Load Supply feld winding constant speed No load voltage (E) Generated Voltage (Eg Terminal Voltage M

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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Q1) Answer the following: - 1- if T=295 NM for 4-pole dc motor having 774 conductors, wave wound ,24mwb flux per pole then la = 2-Hence, beyond certain limit any further decrease in the consequently, the figure below. results in decreasing characteristic curve_ as shown in Armature Reaction Drop Ohmic D Voltage Drop Internal Characteristic External Characteristic Load Current (1) 3-in figure below Armature flux lines is due to the Field poles are GNA MNA Amatu 4-lf the DC shunt generator has an induced open circuit voltage of 127 v and the generator is delivers current of 342 A, the on load voltage is 120 v and field resistance 15 ohm then Ra= 5- However, even when the field current is zero, some amount of emf is generated (Represented by fact that there exists some residual magnetism in the field poles. in the figure below) this initially induced emf is due to the N. N, N. Increase in speed (N) Field Current (1,) 6- The connection arrangement to obtain shunt or series excited generators, the field winding is disconnected from the machine and connected across an external supply. is as shown in the figure below. For DC No Armature) Supply Load field winding constant speed No load voltage (E) Generated Valtage (Eg)
Transcribed Image Text:Q1) Answer the following: - 1- if T=295 NM for 4-pole dc motor having 774 conductors, wave wound ,24mwb flux per pole then la = 2-Hence, beyond certain limit any further decrease in the consequently, the figure below. results in decreasing characteristic curve_ as shown in Armature Reaction Drop Ohmic D Voltage Drop Internal Characteristic External Characteristic Load Current (1) 3-in figure below Armature flux lines is due to the Field poles are GNA MNA Amatu 4-lf the DC shunt generator has an induced open circuit voltage of 127 v and the generator is delivers current of 342 A, the on load voltage is 120 v and field resistance 15 ohm then Ra= 5- However, even when the field current is zero, some amount of emf is generated (Represented by fact that there exists some residual magnetism in the field poles. in the figure below) this initially induced emf is due to the N. N, N. Increase in speed (N) Field Current (1,) 6- The connection arrangement to obtain shunt or series excited generators, the field winding is disconnected from the machine and connected across an external supply. is as shown in the figure below. For DC No Armature) Supply Load field winding constant speed No load voltage (E) Generated Valtage (Eg)
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