Positive Sequence Impedance in L L G Fault Formulas

Positive Sequence Impedance consists of balanced three-phase voltage and current phasors which are exactly at 120 degrees apart rotating counterclockwise in ABC rotation. And is denoted by Z₁. Positive Sequence Impedance is usually measured using the Ohm for Electric Resistance. Note that the value of Positive Sequence Impedance is always positive.

Formulas to find Positive Sequence Impedance in L L G Fault

fxPositive Sequence Impedance using A-Phase EMF(LLGF)Go

L L G Fault formulas that make use of Positive Sequence Impedance

fxPositive Sequence Current using Positive Sequence Voltage (LLGF)Go

fxPositive Sequence Current using A-Phase EMF and Sequence Impedances(LLGF)Go

fxA-Phase EMF using Positive Sequence Voltage (LLGF)Go

fxPositive Sequence Voltage using A-Phase EMF(LLGF)Go

List of variables in L L G Fault formulas

fx A Phase EMF Go

fx Positive Sequence Voltage Go

fx Positive Sequence Current Go

FAQ

What is the Positive Sequence Impedance?

Positive Sequence Impedance consists of balanced three-phase voltage and current phasors which are exactly at 120 degrees apart rotating counterclockwise in ABC rotation. Positive Sequence Impedance is usually measured using the Ohm for Electric Resistance. Note that the value of Positive Sequence Impedance is always positive.

Can the Positive Sequence Impedance be negative?

No, the Positive Sequence Impedance, measured in Electric Resistance cannot be negative.

What unit is used to measure Positive Sequence Impedance?

Positive Sequence Impedance is usually measured using the Ohm[Ω] for Electric Resistance. Megohm[Ω], Microhm[Ω], Volt per Ampere[Ω] are the few other units in which Positive Sequence Impedance can be measured.

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