Podcast
Questions and Answers
For constant transmission efficiency, voltage is increased n times, the size of the conductor would be?
For constant transmission efficiency, voltage is increased n times, the size of the conductor would be?
- increased to n times of the original
- increased to $(n^2)$ times of the original
- reduced to $(1/n^2)$ times of the original (correct)
- reduced to $(1/n)$ times of the original
If the shunt admittance of the transmission line is ignored, the torque angle at which maximum power will occur is?
If the shunt admittance of the transmission line is ignored, the torque angle at which maximum power will occur is?
- $\pi$
- $-\pi/2$
- $\pi/2$ (correct)
- $\pi/4$
If the torque angle $\delta$ continuously increases, system will become?
If the torque angle $\delta$ continuously increases, system will become?
- unstable (correct)
- asymptotic stable
- oscillatory stable
- stable
If $|V_s| = |V_r| = 33$ KV (three phase) and $X = 13$ ohm per phase, what will be the maximum power transmission per phase?
If $|V_s| = |V_r| = 33$ KV (three phase) and $X = 13$ ohm per phase, what will be the maximum power transmission per phase?
If the transmission voltage is increased, the percentage resistance drop will?
If the transmission voltage is increased, the percentage resistance drop will?
The power transmission capacity of the transmission line is?
The power transmission capacity of the transmission line is?
A transformer has a reactance of 0.04 pu. If the secondary of the transformer is short circuited with nominal voltage applied to the primary, the symmetrical short circuit current will be?
A transformer has a reactance of 0.04 pu. If the secondary of the transformer is short circuited with nominal voltage applied to the primary, the symmetrical short circuit current will be?
Three phase short circuit current of an alternator will be?
Three phase short circuit current of an alternator will be?
The material used for fuse wire must have?
The material used for fuse wire must have?
The Buchholz relay is used to protect the?
The Buchholz relay is used to protect the?
Third harmonics current flows from the generator terminals through the system and returns by way of comparatively low zero-sequence reactance path to the neutral terminals will give rise to what problems?
Third harmonics current flows from the generator terminals through the system and returns by way of comparatively low zero-sequence reactance path to the neutral terminals will give rise to what problems?
Flashcards
Conductor Size vs Voltage
Conductor Size vs Voltage
To maintain constant transmission efficiency when voltage is increased by n times, the conductor size is reduced to 1/n^2 times the original size.
Max Power Torque Angle
Max Power Torque Angle
If shunt admittance is ignored, maximum power transfer occurs at a torque angle of π/2.
Torque Angle Instability
Torque Angle Instability
If the torque angle continuously increases, the system becomes unstable.
Maximum Power Transmission
Maximum Power Transmission
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Voltage Increase Effect
Voltage Increase Effect
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Power Transmission Capacity
Power Transmission Capacity
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Short Circuit Current Magnitude
Short Circuit Current Magnitude
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Three-Phase Short Circuit
Three-Phase Short Circuit
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Fuse Wire Properties
Fuse Wire Properties
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Buchholz Relay Function
Buchholz Relay Function
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Study Notes
- For loops are a core control structure in programming used to repeat a code block a specific number of times.
- They are highly beneficial when dealing with arrays or lists.
For Loop Structure
- Initialization is executed once at the start, typically declaring/initializing a counter variable.
- Condition is evaluated before each loop iteration, loop body executes if true, otherwise loop terminates.
- Increment/Decrement is executed after each loop iteration, generally updating the counter variable.
- Body is the code block executed in each loop iteration.
- General syntax:
for (initialization; condition; increment/decrement) { // Loop body }
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