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UNIVERSIDAD MAYOR DE SAN SIMON
FACULTAD DE CIENCIAS Y TECNOLOGIA
INFORME #2
CIRCUITO TRIFASICO FUENTE DELTA
Y CARGA DELTA EQUILIBRADO
Apellido (s) y Nombre (s): Rios Ledezma Jhonatan Grover
Docente: Ing. Marco Vallejo Camacho
Asignatura: Laboratorio de circuitos III
Carrera: Electromecánica - 5º semestre
Fecha de entrega: Cbba /20/04/2021
CIRCUITO TRIFASICO FUENTE DELTA
Y CARGA DELTA EQUILIBRADO
OBJETIVOS. –
 Aprender a realizar una conexión delta - delta, y realizar mediciones de tensiones y
corrientes.
 Verificar las relaciones entre corriente de fase y de línea en conexión delta.
 Verificar y comparar el comportamiento de tensiones y corrientes con cargas
puramente resistivas y cargas RL y RC conectadas en delta.
EQUIPOS Y/O ELEMENTOS A UTILIZAR:
 Fuente de tensión trifásica 220 V rms línea
 Multímetros
 Tres resistencias monofásicas de igual valor
 Tres inductancias monofásicas de igual valor
 Tres capacitancias monofásicas de igual valor
 Conectores requeridos
CALCULOS TEORICOS. -
SIMULACIONES:
CASO 1- CARGA RESISTIVA
CASO 2.- CARGA RESISTIVA – INDUCTIVA.
Generador
Generador
Corriente de fase
Corriente de línea
Voltaje
de fase
Corriente de fase
Corriente de línea
Voltaje
de fase
Voltaje de la
resistencia
Voltaje del
inductor
CASO 3.- CARGA RESISTIVA – CAPACITIVA
TABLA DE RESULTADOS
CASO 1.- CARGA RESISTIVA
1
Z 2
Z 3
Z
UFASE 219.9 V 219.9 V 219.9 V
IFASE 440.0 mA 440.0 mA 440.0 mA
1
L
I 2
L
I 3
L
I
762.2 mA 762.0 mA 762.1 mA
Generador
Voltaje
de fase
Corriente de fase
Corriente de línea
Voltaje del
capacitor
Voltaje de la
resistencia
CASO 2.- CARGA RESISTIVA INDUCTIVA
1
Z 2
Z 3
Z
UFASE 219.9 V 219.9 V 219.9 V
UR 135.8 V 135.8 V 135.8 V
UIND 172.9 V 172.9 V 172.9 V
IFASE 271.8 mA 271.8 mA 271.8 mA
CASO 3.- CARGA RESISTIVA CAPACITIVA
1
Z 2
Z 3
Z
UFASE 219.9 V 219.9 V 219.9 V
UR 186.2 V 186.2 V 186.2 V
UIND 117.1 V 117.1 V 117.1 V
IFASE 372.5 mA 372.5 mA 372.5 mA
1
L
I 2
L
I 3
L
I
470.8 mA 470.9 mA 470.6 mA
1
L
I 2
L
I 3
L
I
645.3 mA 645.4 mA 645.3 mA
CUESTIONARIO. -
1. Los voltajes de fase medidos, ¿son perfectamente equilibrados? ¿A qué se debe el
desequilibrio?
R-. Como se puede ver en los resultados de la simulación de los distintos circuitos los
voltajes de fases son los mismos por lo que sí están perfectamente equilibrados
2. Con los datos de laboratorio determine las relaciones entre corrientes de línea y de fase.
¿Este factor cumple las relaciones establecidas en teoría? Explique las variaciones en
ambos casos claramente si los hubiera.
R-.
𝐼𝒍𝒊𝒏𝒆𝒂 = √3 ∗ 𝐼𝑓𝑎
R R-L R-C
762.2 = √3 ∗440 470.8=√3 ∗271.8 645.3=√3 ∗372.5
762.2 = 762.1 470.8=470.77 645.3=645.18
Se pudo comprobar las relaciones de teoría
3. Verificar con las tensiones medidas la ley de voltajes de Kirchhoff en cada impedancia
R-L y R-C. Dibuje el diagrama fasorial para cada caso y determine el ángulo de desfase
entre la tensión de fase en la carga y la corriente de fase.
4. Investigue cuales son las ventajas y/o desventajas de este sistema delta frente al
sistema estrella.
R-. Delta es ideal para cargas trifásicas balanceadas y tiene grandes ventajas en la
eliminación de los armónicos de 3er. (Probablemente haya cubierto esto en su curso).
Un problema con delta es que no hay un punto en estrella / estrella, por lo que las
cargas que requieren una conexión neutra no se pueden conectar
CONCLUSIONES

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INFORME 2 CIR 3

  • 1. UNIVERSIDAD MAYOR DE SAN SIMON FACULTAD DE CIENCIAS Y TECNOLOGIA INFORME #2 CIRCUITO TRIFASICO FUENTE DELTA Y CARGA DELTA EQUILIBRADO Apellido (s) y Nombre (s): Rios Ledezma Jhonatan Grover Docente: Ing. Marco Vallejo Camacho Asignatura: Laboratorio de circuitos III Carrera: Electromecánica - 5º semestre Fecha de entrega: Cbba /20/04/2021
  • 2. CIRCUITO TRIFASICO FUENTE DELTA Y CARGA DELTA EQUILIBRADO OBJETIVOS. –  Aprender a realizar una conexión delta - delta, y realizar mediciones de tensiones y corrientes.  Verificar las relaciones entre corriente de fase y de línea en conexión delta.  Verificar y comparar el comportamiento de tensiones y corrientes con cargas puramente resistivas y cargas RL y RC conectadas en delta. EQUIPOS Y/O ELEMENTOS A UTILIZAR:  Fuente de tensión trifásica 220 V rms línea  Multímetros  Tres resistencias monofásicas de igual valor  Tres inductancias monofásicas de igual valor  Tres capacitancias monofásicas de igual valor  Conectores requeridos CALCULOS TEORICOS. -
  • 3. SIMULACIONES: CASO 1- CARGA RESISTIVA CASO 2.- CARGA RESISTIVA – INDUCTIVA. Generador Generador Corriente de fase Corriente de línea Voltaje de fase Corriente de fase Corriente de línea Voltaje de fase Voltaje de la resistencia Voltaje del inductor
  • 4. CASO 3.- CARGA RESISTIVA – CAPACITIVA TABLA DE RESULTADOS CASO 1.- CARGA RESISTIVA 1 Z 2 Z 3 Z UFASE 219.9 V 219.9 V 219.9 V IFASE 440.0 mA 440.0 mA 440.0 mA 1 L I 2 L I 3 L I 762.2 mA 762.0 mA 762.1 mA Generador Voltaje de fase Corriente de fase Corriente de línea Voltaje del capacitor Voltaje de la resistencia
  • 5. CASO 2.- CARGA RESISTIVA INDUCTIVA 1 Z 2 Z 3 Z UFASE 219.9 V 219.9 V 219.9 V UR 135.8 V 135.8 V 135.8 V UIND 172.9 V 172.9 V 172.9 V IFASE 271.8 mA 271.8 mA 271.8 mA CASO 3.- CARGA RESISTIVA CAPACITIVA 1 Z 2 Z 3 Z UFASE 219.9 V 219.9 V 219.9 V UR 186.2 V 186.2 V 186.2 V UIND 117.1 V 117.1 V 117.1 V IFASE 372.5 mA 372.5 mA 372.5 mA 1 L I 2 L I 3 L I 470.8 mA 470.9 mA 470.6 mA 1 L I 2 L I 3 L I 645.3 mA 645.4 mA 645.3 mA
  • 6. CUESTIONARIO. - 1. Los voltajes de fase medidos, ¿son perfectamente equilibrados? ¿A qué se debe el desequilibrio? R-. Como se puede ver en los resultados de la simulación de los distintos circuitos los voltajes de fases son los mismos por lo que sí están perfectamente equilibrados 2. Con los datos de laboratorio determine las relaciones entre corrientes de línea y de fase. ¿Este factor cumple las relaciones establecidas en teoría? Explique las variaciones en ambos casos claramente si los hubiera. R-. 𝐼𝒍𝒊𝒏𝒆𝒂 = √3 ∗ 𝐼𝑓𝑎 R R-L R-C 762.2 = √3 ∗440 470.8=√3 ∗271.8 645.3=√3 ∗372.5 762.2 = 762.1 470.8=470.77 645.3=645.18 Se pudo comprobar las relaciones de teoría 3. Verificar con las tensiones medidas la ley de voltajes de Kirchhoff en cada impedancia R-L y R-C. Dibuje el diagrama fasorial para cada caso y determine el ángulo de desfase entre la tensión de fase en la carga y la corriente de fase. 4. Investigue cuales son las ventajas y/o desventajas de este sistema delta frente al sistema estrella. R-. Delta es ideal para cargas trifásicas balanceadas y tiene grandes ventajas en la eliminación de los armónicos de 3er. (Probablemente haya cubierto esto en su curso). Un problema con delta es que no hay un punto en estrella / estrella, por lo que las cargas que requieren una conexión neutra no se pueden conectar CONCLUSIONES