The Mercy Of God
Mercy is unmerited favour from God.
For He said to Moses, I will have mercy on whom I will have
mercy and I will have compassion on whom I will have compassion.
So then it is not him that willeth, nor of him that runneth,
but of God that sheweth mercy.
Name: Nwani Ikechukwu Destiny
ReplyDeleteReg No: Esut/2008/94377
Course: Electrical Power System Analysis (EEE454)
An unbalanced system of N related phasor can be resolved into N system of balanced phasor called symetrical phasor component of the regional phasor. These are equal in length and the distance between them. In electrical power system we have three symetrical components:
1. Positive - sequence component
2. Negative – sequence component
3. Zero – sequence component
Notation
+ve positive sequence component 1
-ve negative sequence component 2
Zero zero sequence component 0
Va = va1 + va2 + va0
Vb = vb1 +vb2 + vb0
Vc = vc1 + vc2 + vc0
Phasor is a vectoral representation of mathematically abstract components but phase represents the three winding lines that make a current. E. g. Red, Yellow, Blue. Etc
Per unit system is a means of normallizing the dimension of electrical quantities
Per unit value=actual value , Vbase Ibase =Sbase
Base value
Modelling is the mathematical representation of electrical quantities.
Assuming infinite conductivity and permeability hence no resistance and no flux leakage.
V1= N1dØ/dt
V2= N2dØ/dt
V3= N3dØ/dt
Name: Nwani Ikechukwu Destiny
ReplyDeleteReg No: Esut/2008/94377
Course: Electrical Power System Analysis (EEE454)
An unbalanced system of N related phasor can be resolved into N system of balanced phasor called symetrical phasor component of the regional phasor. These are equal in length and the distance between them. In electrical power system we have three symetrical components:
1. Positive - sequence component
2. Negative – sequence component
3. Zero – sequence component
Notation
+ve positive sequence component 1
-ve negative sequence component 2
Zero zero sequence component 0
Va = va1 + va2 + va0
Vb = vb1 +vb2 + vb0
Vc = vc1 + vc2 + vc0
Phasor is a vectoral representation of mathematically abstract components but phase represents the three winding lines that make a current. E. g. Red, Yellow, Blue. Etc
Per unit system is a means of normallizing the dimension of electrical quantities
Per unit value=actual value , Vbase Ibase =Sbase
Base value
Modelling is the mathematical representation of electrical quantities.
Assuming infinite conductivity and permeability hence no resistance and no flux leakage.
V1= N1dØ/dt
V2= N2dØ/dt
V3= N3dØ/dt