Transient surges are defined as momentary bursts of energy that are induced upon power, data, or communication lines. They are characterized by extremely high voltages that can drive tremendous amounts of current into an electrical circuit for a few millionths, up to a few thousandths of a second.

: an oscillatory or aperiodic current that flows in a circuit for a short time following an electromagnetic disturbance (as a nearby stroke of lightning)

Transient analysis is the analysis of the circuits during the time it changes from one steady state condition to another steady state condition. Transient analysis will reveal how the currents and voltages are changing during the transient period.

So, the AC voltage source having a peak voltage of Vm volts is not connected to the series RL circuit up to this instant. iTr(t) is the transient response of the current flowing through the circuit. iss(t) is the steady state response of the current flowing through the circuit.

The vast majority of transients are produced within your own facility. The main culprits are device switching, static discharge, and arcing. Each time you turn on, turn off, load, or unload an inductive device, you produce a transient. Examples of inductive loads are motors and transformers.

Adjective. transient, transitory, ephemeral, momentary, fugitive, fleeting, evanescent mean lasting or staying only a short time. transient applies to what is actually short in its duration or stay.

As adjectives the difference between transient and homeless is that transient is passing or disappearing with time; transitory while homeless is lacking a permanent place of residence.

Frequency: The definition of a transient is someone who is just passing through somewhere or isn’t staying long. An example of transient is a honeymoon couple staying at a resort.

Transient response is a measure of how well a DC supply, such as the Sorensen SG Series, copes with changes in current demand or how well the supply follows load impedance changes. This is an important specification in many applications, such as mobile phone testing and testing automotive relays and fuses.

Transients in electric circuits occur due to the presence of energy storage elements (i.e., inductors and capacitors). Determination of initial conditions for the energy storage elements by using the continuity of voltage across a capacitor and the continuity of current through an inductor.

During a transient, in individual parts of a circuit there may occur voltage surges and overcurrents—that is, voltages and currents substantially greater than the steady-state voltages and currents.

It is a momentary event preceding the steady state during a sudden change of a circuit or start-up. Most circuit principles such as inductor volt-second balance, capacitor ampere-second balance ignore transient states and are valid only for steady state. Mathematically, it can be modeled as a damped harmonic oscillator .

A transient event is a short-lived burst of energy in a system caused by a sudden change of state.

This chapter explores the response of capacitors and inductors to sudden changes in DC voltage (called a transient voltage), when wired in series with a resistor. Unlike resistors, which respond instantaneously to applied voltage, capacitors and inductors react over time as they absorb and release energy.