Hello and good morning, I just signed up here with the hope of someone helping me out a bit. I'm studying Electrical Engineering and while I was studying the sync machines I came across a weird problem.
Personally I'm doing it because of interests and love for math and geometry.
so please forgive me if this is wrong place to post something like this. ._.
This is the data I have.
on the problem, they will only tell you that the exciment current supplied to the rotor makes it generate about 1925 v (Ea), and that the load have a power factor of 0.73 lagging, with a constant electrical power of 454KW.
this machines base data are: S: 1000KVA, 2300V with nominal power factor of 0.80 lagging, Xs is 1.2 ohms/phase, star conection, and all loses sums up around 42KW (air, friction loss, heat).
we need to calculate from those 3 values, the Torque Angle (angle between Vt (terminal voltage) and Ea), the ia (armature current) and Vt (that also have a referecial angle of 0º)
these are my notes so far. o.o
I've been trying to solve it for days but with no hope. :/
sidenote: I was working with per unit values.
Personally I'm doing it because of interests and love for math and geometry.
so please forgive me if this is wrong place to post something like this. ._.
This is the data I have.
on the problem, they will only tell you that the exciment current supplied to the rotor makes it generate about 1925 v (Ea), and that the load have a power factor of 0.73 lagging, with a constant electrical power of 454KW.
this machines base data are: S: 1000KVA, 2300V with nominal power factor of 0.80 lagging, Xs is 1.2 ohms/phase, star conection, and all loses sums up around 42KW (air, friction loss, heat).
we need to calculate from those 3 values, the Torque Angle (angle between Vt (terminal voltage) and Ea), the ia (armature current) and Vt (that also have a referecial angle of 0º)
these are my notes so far. o.o
I've been trying to solve it for days but with no hope. :/
sidenote: I was working with per unit values.
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