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ЁЭС╖ЁЭСиЁЭСо: ЁЭС╖ЁЭТЕ (Airgap power: mechanical power devloped) is given by
s
(1-s)
s:(1-s)
(1-s)
(1-s)
In induction motors, the ratio of airgap power (PAG) to mechanical power developed (Pd) is given by (1-s), where s is the slip. Therefore, the correct answer is option B.
In induction motors, the ratio of airgap power (PAG) to mechanical power developed (Pd) is given by (1-s), where s is the slip. Therefore, the correct answer is option B.
PAGтАЛ=PdтАЛimes(1тИТs) тАФ relation of airgap power to mechanical power developed
This relationship arises because the slip is the difference between synchronous speed and actual rotor speed, relative to the synchronous speed. The mechanical power developed is a portion of the airgap power, which accounts for losses due to slip.
Slip (s) indicates the difference between synchronous and rotor speed.
A higher slip corresponds to lower developed mechanical power.
Helps in understanding motor efficiency.
Allows calculation of performance parameters.
Assumes constant losses, which may not be realistic in all conditions.
Does not account for saturation effects in the motor.
Design of induction motors.
Performance assessment in electrical engineering.
The standard formula reflects the fundamental principles of motor operations.
Option A is incorrect as it does not represent the correct relationship, while C suggests a ratio that does not accurately define the relationship between airgap power and mechanical power.
B is correct тАФ it accurately describes the relationship between airgap power and mechanical power in an induction motor.
Understanding the slip concept is crucial for evaluating the performance of induction motors, especially in competitive exams.