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Cómo calcular el consumo de corriente y voltaje en una red
                           LEY DE OHM


                                _____
                                   V
                                 I . R

EN LAS SIGUIENTES GRAFICAS SE EXPLICA UN MODELO BASICO DE CALCULO DE
CONSUMO DE CORRIENTE Y VOLTAJE EN UNA RED AUTOALIMENTADA , UTILIZANDO UN
CABLE COAXIAL RIGIDO CALIBRE .500 MARCA NCM , CON UNA RESISTENCIA DE 0,0057 Ω
POR METRO DE CABLE. ESTA RED ESTA ALIMENTADA POR UNA FUENTE DE
ALIMENTACION QUE SUMINISTRA UN VOLTAJE DE 60 VOLTIOS DE CORRIENTE ALTERNA,
Y UNA CAPACIDAD MAXIMA DE 15 AMPERIOS DE CORRIENTE .

PARA ESTE EJEMPLO AL IGUAL QUE EN TODOS LOS CASOS DE CALCULOS DE CONSUMO
DE VOLTAJES Y CORRIENTES , TOMAREMOS COMO BASE LA LEY DE OHM, QUE SE
APLICA DE LA SIGUIENTE MANERA: PARA HALLAR CUALQUIERA DE LOS 3 FACTORES V =
VOLTAJE, I = INTENSIDAD O CORRIENTE , R = RESISTENCIA; SE PROCEDE A CUBRIR EL
FACTOR EN INCOGNITA O DESCONOCIDO EN SU VALOR, Y LOS 2 RESTANTES QUE
QUEDAN VISIBLES SE PROCESAN DE ACUERDO A LA OPERACIÓN QUE SE PRESENTE.
•   Ej.: SI CUBRIMOS LA V (VOLTAJE) LA OPERACIÓN SERA MULTIPLICAR I (INTENSIDAD)
    POR R ( RESISTENCIA) Y EL RESULTADO SERA EL VOLTAJE DE TRABAJO. SI CUBRIMOS
    LA I ( INTENSIDAD O CORRIENTE) LA OPERACIÓN SERA DIVIDIR EL VOLTAJE SOBRE LA
    RESISTENCIA PARA OBTENER LA CORRIENTE DE TRABAJO, Y SI CUBRIMOS LA R
    (RESISTENCIA) LA OPERACIÓN SERA DIVIDIR EL VOLTAJE (V) SOBRE LA INTENSIDAD(I) Y
    EL RESULTADO SERA LA RESISTENCIA DEL CIRCUITO ELECTRICO.
CALCULOS DE CONSUMO DE CORRIENTE Y VOLTAJE

                                    .64A                                                .64A
                                2                FUENTE DE
                                                                                    6
                                                ALIMENTACION

                                    200m                                                150m
        200m                        1,14 Ω
                                                     60V                                0.855Ω
       1,14 Ω


.64A            .64A                 .64A
                                                                             .64A                .64A           .64A
                       200m                  300m                300m                200m               150 m
 4                3                   1               Power
                                                      insert                 5                    7             8
                       1,14.Ω                                       1,71 Ω          1,14.Ω            0.855Ω
                                            1,71 Ω

                                                     RF+AC
 LEY DE OHM
                                                                                                        .64A

       V                                                                                     Consumo de
                                Resistencia cable coaxial rigido .500                        Corriente
     I . R                                                                                   amplificador line
                                                                                             extender
                                              NCM .500 = 0.0057 Ω x metro
CALCULOS DE CONSUMO DE CORRIENTE Y VOLTAJE
                              DESARROLLO DE LOS CALCULOS

                                 57,4V               .64A
                                                 2
                                                     200m
                                                                       60V
                                                                                LEY DE OHM
                                                     1,14 Ω
52,3V                 55,2V
             .64A                .64A                 .64A                            V
                                                                                   _____
                     200m               200m                  300m     Power        I . R
               4                  3                    1               insert

                    1,14 Ω              1,14.Ω                1,71 Ω

                                        58,9V                   60 V
                                                         RF+AC
1       300m x 0,0057 Ω = 1,71 Ω x .64 A = 1,0944 V: 60V- 1,0944V = 58,9056 V


2       200m x 0,0057 Ω = 1,14 Ω x 1,28 A = 1,4592 V: 58,9056 V- 1,4592 = 57,4464V

3       200m x 0,0057 Ω = 1, 14 x 1,92A = 2,1888 V: 57,4464 V- 2,1888 V = 55,2576V

4       200 m x 0,0057 Ω = 1,14 Ω x 2,56A = 2,91 V: 55,2576 -2,91 = 52,3476V
CALCULOS DE CONSUMO DE CORRIENTE Y VOLTAJE
                     DESARROLLO DE LOS CALCULOS
                               FUENTE DE
                              ALIMENTACION
                                                                                57,8V
                                                                       .64A
                                                                   6
                                 60V
    LEY DE OHM                                                         150m
                                                         58,9 V        0.855Ω        55,6 V

           V
        _____                              60 V
                                                            .64A                .64A            .64A
         I . R                                    300m              200m                150 m
                                  Power
                                  insert                    5                    7              8
                                                   1,71 Ω          1,14.Ω            0.855Ω

                                 RF+AC                                       53,4V
5   300m x 0,0057 Ω = 1,71 Ω x .64 A = 1,0944 V : 60 V- 1,0944 V = 58,9036 V


6   150m x 0,0057 = 0,855 Ω x 1,28A = 1,0944V : 58,9036V -1,0944V = 57,8092V


7   200 m x 0,0057 = 1,14 Ω x 1,92A = 2,1888 V : 57,809V - 2,1888V = 55,6212 V


8   150 m x 0,0057 Ω = 0,855 Ω x 2,56 = 2,1888 V : 55,6212V-2,1888V = 53,4324V
Cable Servicios S.A.
Todo en CATV
www.cableservicios.com
ventas@cableservicios.com
Bogotá- Colombia

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Como calcular el consumo de corriente y voltaje en una red

  • 1. Cómo calcular el consumo de corriente y voltaje en una red LEY DE OHM _____ V I . R EN LAS SIGUIENTES GRAFICAS SE EXPLICA UN MODELO BASICO DE CALCULO DE CONSUMO DE CORRIENTE Y VOLTAJE EN UNA RED AUTOALIMENTADA , UTILIZANDO UN CABLE COAXIAL RIGIDO CALIBRE .500 MARCA NCM , CON UNA RESISTENCIA DE 0,0057 Ω POR METRO DE CABLE. ESTA RED ESTA ALIMENTADA POR UNA FUENTE DE ALIMENTACION QUE SUMINISTRA UN VOLTAJE DE 60 VOLTIOS DE CORRIENTE ALTERNA, Y UNA CAPACIDAD MAXIMA DE 15 AMPERIOS DE CORRIENTE . PARA ESTE EJEMPLO AL IGUAL QUE EN TODOS LOS CASOS DE CALCULOS DE CONSUMO DE VOLTAJES Y CORRIENTES , TOMAREMOS COMO BASE LA LEY DE OHM, QUE SE APLICA DE LA SIGUIENTE MANERA: PARA HALLAR CUALQUIERA DE LOS 3 FACTORES V = VOLTAJE, I = INTENSIDAD O CORRIENTE , R = RESISTENCIA; SE PROCEDE A CUBRIR EL FACTOR EN INCOGNITA O DESCONOCIDO EN SU VALOR, Y LOS 2 RESTANTES QUE QUEDAN VISIBLES SE PROCESAN DE ACUERDO A LA OPERACIÓN QUE SE PRESENTE.
  • 2. Ej.: SI CUBRIMOS LA V (VOLTAJE) LA OPERACIÓN SERA MULTIPLICAR I (INTENSIDAD) POR R ( RESISTENCIA) Y EL RESULTADO SERA EL VOLTAJE DE TRABAJO. SI CUBRIMOS LA I ( INTENSIDAD O CORRIENTE) LA OPERACIÓN SERA DIVIDIR EL VOLTAJE SOBRE LA RESISTENCIA PARA OBTENER LA CORRIENTE DE TRABAJO, Y SI CUBRIMOS LA R (RESISTENCIA) LA OPERACIÓN SERA DIVIDIR EL VOLTAJE (V) SOBRE LA INTENSIDAD(I) Y EL RESULTADO SERA LA RESISTENCIA DEL CIRCUITO ELECTRICO.
  • 3. CALCULOS DE CONSUMO DE CORRIENTE Y VOLTAJE .64A .64A 2 FUENTE DE 6 ALIMENTACION 200m 150m 200m 1,14 Ω 60V 0.855Ω 1,14 Ω .64A .64A .64A .64A .64A .64A 200m 300m 300m 200m 150 m 4 3 1 Power insert 5 7 8 1,14.Ω 1,71 Ω 1,14.Ω 0.855Ω 1,71 Ω RF+AC LEY DE OHM .64A V Consumo de Resistencia cable coaxial rigido .500 Corriente I . R amplificador line extender NCM .500 = 0.0057 Ω x metro
  • 4. CALCULOS DE CONSUMO DE CORRIENTE Y VOLTAJE DESARROLLO DE LOS CALCULOS 57,4V .64A 2 200m 60V LEY DE OHM 1,14 Ω 52,3V 55,2V .64A .64A .64A V _____ 200m 200m 300m Power I . R 4 3 1 insert 1,14 Ω 1,14.Ω 1,71 Ω 58,9V 60 V RF+AC 1 300m x 0,0057 Ω = 1,71 Ω x .64 A = 1,0944 V: 60V- 1,0944V = 58,9056 V 2 200m x 0,0057 Ω = 1,14 Ω x 1,28 A = 1,4592 V: 58,9056 V- 1,4592 = 57,4464V 3 200m x 0,0057 Ω = 1, 14 x 1,92A = 2,1888 V: 57,4464 V- 2,1888 V = 55,2576V 4 200 m x 0,0057 Ω = 1,14 Ω x 2,56A = 2,91 V: 55,2576 -2,91 = 52,3476V
  • 5. CALCULOS DE CONSUMO DE CORRIENTE Y VOLTAJE DESARROLLO DE LOS CALCULOS FUENTE DE ALIMENTACION 57,8V .64A 6 60V LEY DE OHM 150m 58,9 V 0.855Ω 55,6 V V _____ 60 V .64A .64A .64A I . R 300m 200m 150 m Power insert 5 7 8 1,71 Ω 1,14.Ω 0.855Ω RF+AC 53,4V 5 300m x 0,0057 Ω = 1,71 Ω x .64 A = 1,0944 V : 60 V- 1,0944 V = 58,9036 V 6 150m x 0,0057 = 0,855 Ω x 1,28A = 1,0944V : 58,9036V -1,0944V = 57,8092V 7 200 m x 0,0057 = 1,14 Ω x 1,92A = 2,1888 V : 57,809V - 2,1888V = 55,6212 V 8 150 m x 0,0057 Ω = 0,855 Ω x 2,56 = 2,1888 V : 55,6212V-2,1888V = 53,4324V
  • 6. Cable Servicios S.A. Todo en CATV www.cableservicios.com ventas@cableservicios.com Bogotá- Colombia