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1. Bus bars in electrical substation are made of aluminum because it has i Low cost ii. Low Density i. High Resistivity iv. Low Melting Point 2. is the greatest demand of load on the power station, during a given period. 3. The arc resistance in circuit breakers doesn't depend on i. Length of Arc i. Degree of Ionization ii. Cross section of the Arc iv. Cross section of the Conductor 4. List out any two limitations of fuse.

1. Bus bars in electrical substation are made of aluminum because it has i Low cost ii. Low Density i. High Resistivity iv. Low Melting Point 2. is the greatest demand of load on the power station, during a given period. 3. The arc resistance in circuit breakers doesn't depend on i. Length of Arc i. Degree of Ionization ii. Cross section of the Arc iv. Cross section of the Conductor 4. List out any two limitations of fuse.

Power System Analysis and Design (MindTap Course List)
Power System Analysis and Design (MindTap Course List)
6th Edition
ISBN:9781305632134
Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Chapter7: Symmetrical Faults
Section: Chapter Questions
Problem 7.21MCQ
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1. Bus bars in electrical substation are made of aluminum because it has i Low cost ii. Low Density ii. High Resistivity iv. Low Melting Point 2. is the greatest demand of load on the power station, during a given period. 3. The arc resistance in circuit breakers doesn't depend on i. Length of Arc ii. Degree of Ionization iii. Cross section of the Arc i. Cross section of the Conductor 4. List out any two limitations of fuse. 5. A 2-wire DC ring distributor is 375m long and is fed with 300V at point A. At point B, 200m from A, load of 150A is taken and at point C, 100m in the opposite direction, a load of 100A is taken. If the resistance per 100m of single conductor is 0.03, find: i. Current in each section of distributor iü. Voltage at points B and C ii. Point of minimum potential
Transcribed Image Text:1. Bus bars in electrical substation are made of aluminum because it has i Low cost ii. Low Density ii. High Resistivity iv. Low Melting Point 2. is the greatest demand of load on the power station, during a given period. 3. The arc resistance in circuit breakers doesn't depend on i. Length of Arc ii. Degree of Ionization iii. Cross section of the Arc i. Cross section of the Conductor 4. List out any two limitations of fuse. 5. A 2-wire DC ring distributor is 375m long and is fed with 300V at point A. At point B, 200m from A, load of 150A is taken and at point C, 100m in the opposite direction, a load of 100A is taken. If the resistance per 100m of single conductor is 0.03, find: i. Current in each section of distributor iü. Voltage at points B and C ii. Point of minimum potential
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