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Transients in a system are caused due to
Resistance
Inductance
Capacitance
both b) & c)
Resistance
Transients are temporary, non-periodic disturbances in a power system caused by the sudden change in stored energy, which occurs only in elements capable of storing energy. While the provided question indicates Resistance as the correct answer, this is technically incorrect; inductors and capacitors are the energy-storage components responsible for transients.
Transients are temporary, non-periodic disturbances in a power system caused by the sudden change in stored energy, which occurs only in elements capable of storing energy. While the provided question indicates Resistance as the correct answer, this is technically incorrect; inductors and capacitors are the energy-storage components responsible for transients.
vLтАЛ=LdtdiтАЛ тАФ voltage relationship in an inductor, preventing instantaneous current change.
iCтАЛ=CdtdvтАЛ тАФ current relationship in a capacitor, preventing instantaneous voltage change.
In an inductive circuit, the current cannot change instantaneously because vLтАЛ=LdtdiтАЛ. Similarly, in a capacitive circuit, the voltage cannot change instantaneously because iCтАЛ=CdtdvтАЛ. When a switching operation occurs, the redistribution of energy between magnetic fields (L) and electric fields (C) results in transient oscillations until a new steady state is reached.
Resistors are energy-dissipating elements and do not cause transients.
Transients arise due to the requirement for continuity in magnetic flux (lambda) and electric charge (q).
Switching operations or faults are the primary triggers for transient states.
The provided question's answer is factually incorrect; D is the technically accurate choice.
Transient analysis helps in designing robust insulation.
Understanding transients allows for effective circuit breaker selection.
Overvoltages during transients can damage sensitive equipment.
Causes electromagnetic interference (EMI) in communication lines.
Surge protection device design.
Power system stability analysis.
Fault location in transmission lines.
In physics and electrical engineering, transients are solely a function of reactive components (L and C).
Resistance solely determines the damping factor of the transient oscillation but cannot trigger the transient itself.
D is correct тАФ Transients are caused by the energy-storing properties of both inductance and capacitance, making both essential components in transient phenomenon.
Always remember: Inductors prevent current change, Capacitors prevent voltage change; therefore, only L and C produce transients in power systems.