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In the power system, the resonance rarely occurs at the supply frequency because
- a)circuit capacitance is large
- b)circuit capacitance is small
- c)circuit inductance is small
- d)None of the above
Correct answer is option 'B'. Can you explain this answer?
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Verified Answer
In the power system, the resonance rarely occurs at the supply frequen...
Resonance in an electrical system occurs when inductive reactance of the circuit becomes equal to capacitive reactance of the circuit. Resonance causes high voltages in the electrical system. In transmission lines, the capacitance is very small as compared to inductance so that resonance rarely occurs.
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In the power system, the resonance rarely occurs at the supply frequen...
Resonance in Power System
Resonance is a phenomenon in which the impedance of a circuit becomes very high due to the interaction of the inductance and capacitance present in the circuit. In a power system, resonance can occur due to the presence of capacitive and inductive elements in the network.
Resonance Frequency
The resonance frequency of a circuit is given by the following formula:
f = 1 / (2π√(LC))
Where,
f = resonance frequency
L = inductance of the circuit
C = capacitance of the circuit
Why Resonance Rarely Occurs at Supply Frequency?
Resonance in a power system rarely occurs at the supply frequency because of the following reasons:
- Circuit capacitance is small: The capacitance of the power system is usually small, which means that the resonance frequency of the system is high. Since the supply frequency is much lower than the resonance frequency, resonance occurs only when the frequency of the power system is close to the resonance frequency.
- Circuit inductance is large: The inductance of the power system is usually large, which means that the resonance frequency of the system is low. Since the supply frequency is much higher than the resonance frequency, resonance occurs only when the frequency of the power system is close to the resonance frequency.
Conclusion
In conclusion, resonance in a power system rarely occurs at the supply frequency because the circuit capacitance is small and the circuit inductance is large. Resonance occurs only when the frequency of the power system is close to the resonance frequency, which is determined by the inductance and capacitance of the circuit.
Resonance is a phenomenon in which the impedance of a circuit becomes very high due to the interaction of the inductance and capacitance present in the circuit. In a power system, resonance can occur due to the presence of capacitive and inductive elements in the network.
Resonance Frequency
The resonance frequency of a circuit is given by the following formula:
f = 1 / (2π√(LC))
Where,
f = resonance frequency
L = inductance of the circuit
C = capacitance of the circuit
Why Resonance Rarely Occurs at Supply Frequency?
Resonance in a power system rarely occurs at the supply frequency because of the following reasons:
- Circuit capacitance is small: The capacitance of the power system is usually small, which means that the resonance frequency of the system is high. Since the supply frequency is much lower than the resonance frequency, resonance occurs only when the frequency of the power system is close to the resonance frequency.
- Circuit inductance is large: The inductance of the power system is usually large, which means that the resonance frequency of the system is low. Since the supply frequency is much higher than the resonance frequency, resonance occurs only when the frequency of the power system is close to the resonance frequency.
Conclusion
In conclusion, resonance in a power system rarely occurs at the supply frequency because the circuit capacitance is small and the circuit inductance is large. Resonance occurs only when the frequency of the power system is close to the resonance frequency, which is determined by the inductance and capacitance of the circuit.
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In the power system, the resonance rarely occurs at the supply frequency becausea)circuit capacitance is largeb)circuit capacitance is smallc)circuit inductance is smalld)None of the aboveCorrect answer is option 'B'. Can you explain this answer?
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