ingeniería eléctrica




Prueba Adicional













1.- Un MCCEI con Va = 220(V)
Ia = 15(A)
Iexcitacion = 0,55W= 1440 RPM = 150,79 rad/s
J = 1,1 Nm
Kφ = 1,11
La maq. Opera con carga cte. De movimiento traslacional a V = 1,55m/s con una
F = 1460Nw, Rv = 10, Rend = 96%, Rpolea = 0,2 m
-proyectar acelerador de 4 etapas
-proyectar un freno contracorriente de 3 etapas

Acelerador:
Wsal = => Wsal= 15,5 Tsal = =>Tsal = 146
Wrad = 15,5 x 10 => Wrad = 155 Tcarga = => Tcarga = 15,208
Icarga = => I carga = 13,701
Ra = => Ra = 3,508
Imáx = 1,4 x 15 => Imáx = 21 Rt = => Rt = 10,476
Imin = x21 => Imin = 15,974 W1= => W1 = 47,438
Rw = = 7,968 R1 = 2,508 W2= => W2 = 83,530
Rx = = 6,061 R2 = 1,907 W3= =>W3 =110,974
Ry = = 4,610 R3 = 1,451 W4= =>W4 =131,855R4 = Ry – Ra=> R4 = 1,102

Tmec1= = 9,352 => T1 = 9,352 x Ln () T1 = 10,910
Tmec2= = 7,113 => T2 = 7,113 x Ln () T2 = 8,298
Tmec3= = 5,411=> T3 = 5,411 x Ln () T3 = 6,312
Tmec4= = 4,115 => T4 = 4,115 x Ln () T4 = 4,800
Ttotal = T1 + T2 +T3 + T4 = 30,32 (s)



Freno Contracorriente:
Rtext = 30 ()
Wini == 154,89 155
Imáxf =­ - => imáxf = -11,700 Rk = => Rk = 18,803
Iminf = x -11,700 => Iminf = -9,650
W1f = - => W1f = 93,122 Rxf = - => Rxf = 27,638
Rext + Ra – Rxf =9,378 = R1f
W2f = - => W2f = 42,078 Ryf = - => Ryf = 22,795
Rxf – Ryf = 4,843 = R2f
W3f = - => W3f = -0,0254 Rzf = - => Rzf=18,801
Ryf – Rzf = 3,993 = R3fTmecf1 = = 29,915 T1f = 29,915 x Ln() => T1f = 2,517
Tmecf2 = = 24,674 T2f = 24,674 x Ln( ) => T2f = 2,076
Tmecf3 = = 20,351 T3f = 20,351 x Ln() => T3f = 1,712...