__Sequence Current Calcuator:__

__Sequence Current Calcuator:__

Enter the values of voltage, V_{seq(V)} and impedance, Z_{seq(Ω)} to determine the value of Sequence current, I_{seq(A)}.

__Sequence Current Formula:__

__Sequence Current Formula:__

Sequence current refers to the components of an unbalanced three-phase system, which can be decomposed into three sets of balanced phasor components: positive sequence, negative sequence, and zero sequence.

In power system analysis, symmetrical components are used to decompose unbalanced phasors into three sets of balanced phasors: positive sequence, negative sequence, and zero sequence components.

These are the voltages associated with each sequence component. V_{seq} can be positive sequence voltage, negative sequence voltage or zero sequence voltage.

These are the impedances corresponding to each sequence component. Z_{seq} can be positive sequence impedance, negative sequence impedance or zero sequence impedance.

**Positive Sequence** represents the balanced condition where the phases are in the normal order (A-B-C).

**Negative Sequence** represents the condition where the phases are in reverse order (A-C-B).

**Zero Sequence** represents the condition where all three phases are in phase with each other. The sequence current is calculated using Ohm’s law applied to each sequence component.

Sequence current, I_{seq(A)} in amperes is calculated by voltage, V_{seq(V)} in volts divided by impedance, Z_{seq(Ω)} in ohms.

Sequence current, I_{seq(A)} = V_{seq(V)} / Z_{seq(Ω)}

I_{seq(A)} = sequence current in amperes, A.

V_{seq(V)} = sequence voltage in volts, V.

Z_{seq(Ω)} = impedance in ohms, Ω.

__Sequence Current Calculation:__

__Sequence Current Calculation:__

**Calculate the sequence current for a circuit with a voltage of 100 volts and an impedance of 20 ohms.**

Given: V_{seq(V)} = 100V, Z_{seq(Ω)} = 20 Ω.

Sequence current, I_{seq(A)} = V_{seq(V)} / Z_{seq(Ω)}

I_{seq(A)} = 100 / 20

I_{seq(A)} = 5A.

**Suppose a sequence current of 2 amperes flows through a circuit with an impedance of 15 ohms. Calculate the voltage.**

Given: I_{seq(A)} = 2A, Z_{seq(Ω)} = 15 Ω.

Sequence current, I_{seq(A)} = V_{seq(V)} / Z_{seq(Ω)}

V_{seq(V)} = I_{seq(A)} * Z_{seq(Ω)}

V_{seq(V)} = 2 * 15

V_{seq(V)} = 30V.

__Effect of Negative Sequence Current | Motor Heating Problem | Motor Unbalance Current:__

__Effect of Negative Sequence Current | Motor Heating Problem | Motor Unbalance Current:__