#10 Determining Equivalent Circuit parameters - Synchronous Gen ( Linear Method )

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Күн бұрын

Пікірлер: 22

@akanshmaurya1568 5 жыл бұрын

While calculating the value of Ra using the DC test, we calculate Ra (DC), this must be converted to Ra(AC) by multiplying by a factor of 1.22. Resistance changes its value when under AC condition due to phenomena like Skin effect.

@snehagupta1044 4 жыл бұрын

Love the way you teach sir😍😍

@Professor_el Жыл бұрын

In determining the parameters of the equivalent circuit of the generator , we normally say we want speed of the rotor constant why? We know that Ea.=k x(phi)x w From this equation I can see that if we increase w , then Ea. also increases , and if Ea increases it means that the rotor field which produced Ea. i.e., Br also increased , which means that current that produced Br also increased , and this current is If as in the ppt , So why do we need w constant if for the open circuit test we want a plot between Ea. and If and we can vary the two by just increasing the speed of the rotor?

@rishabhmittal1362 6 жыл бұрын

Please also provide lecture for exact method where saturation is considered and Potier Triangle approach.

@NitinSharma-hg8ue 6 жыл бұрын

Thanx for amazing content...

@husseinshutari5209 3 жыл бұрын

very useful. if I want to model PMSG via Matlab for wind application how can I get the parameters such as inertia, linkage flux, etc?

@adityabanerjee0244 7 ай бұрын

Sir core saturate means?

@khawajaareeb6837 4 жыл бұрын

Sync. Reactance and stator reactance are both exactly same??

@deepubana4325 6 жыл бұрын

One doubt sir. while measuring Xs we short circuit the alternator and on the other side we take the Ea value from OCC. so how the Ea from OCC could be equal to the Ea of short circuit because when we short circuit,the effect of armature flux comes into effect and that will affect the Ea value and that would be less than what we get from OCC??

@parthsarthi5681 6 жыл бұрын

short circuiting will create the current to flow into armature but the current is not very high as the current depends on the load connected to it and we have not connected any load. so the armature reaction effect can be neglected.

@Xyzengineer 5 ай бұрын

And that armature effect only we are trying to find out

@ddumbasamuel4520 3 жыл бұрын

learning from Uganda AFRICA. How can i get notes?

@laltusing7802 5 жыл бұрын

Sir can you please explain what is armature leakage flux? Is it armature flux not connecting with rotor or rotor flux not connecting with armature.

@qaz1234ism 6 жыл бұрын

sir when we calculate armature resistance we give dc supply then remove one phase then we have two coil that means its inductance then how calculate resistance...

@ElectricalisEasy 6 жыл бұрын

When your applying DC to a coil or two coils in this case, there is no inductive reactance..the only resistance is the resistance of the wires...go through the numerical in the next lecture things will be more clear...