IEEE Power & Energy Magazine - Spanish - March/April 2022 - 84

York estaban " saturados " con cables
para la carga pesada de iluminación de
hoteles y restaurantes mientras que ambas
compañías suministraban la carga
pesada de las centrales de refrigeración
para los sistemas de aire acondicionado
de los teatros.
Una vez más, el área noroeste fue la
zona de pruebas. Una red experimental
trifásica de cuatro cables que combinaba
iluminación y potencia se lanzó en
julio de 1923, ubicada entre Columbus
Avenue y Central Park West, un
área residencial de grandes edificios
de departamentos y tiendas pequeñas.
El objetivo era lograr una red libre de
flicker por operaciones con motores.
Tres bancos de transformadores, cada
uno con un trio de unidades de 25-kVA
y un par de unidades de 12.5-kVA, suministraban
las cargas de iluminación
y potencia, esta última incluía 15 motores
elevadores bifásicos. Cada motor
elevador recibía 220 V, y los transformadores
automáticos bifásicos suministraban
190 V trifásicos de la red.
Estos transformadores solo tenían una
reactancia del 3 %; se descubrió que la
distribución de la carga era buena para
el arranque de motores. Los motores
elevadores impactaban la tensión en
menos del 3 % y no tenían un impacto
notorio sobre la iluminación.
La primera red automática trifásica
de cuatro cables para iluminación y
energía combinadas comenzó a operar
en el área de Times Square el 28 de octubre
de 1925. Cuarenta y cuatro transformadores
suministraban 4,950 kVA a
la red desde cinco alimentadores radiales
trifásicos de 3,000-V alimentados
desde la subestación transformadora de
West 45th Street. La protección la brindaban
los relés CM de Westinghouse
que habían comenzado a suplantar a los
de Palmer hacía dos años. Hacia fines
de 1925, las técnicas de las redes automáticas
de alimentación múltiple ya
se habían establecido. Adicionalmente,
el reemplazo de la red de distribución
bifásica por la trifásica había iniciado
en 1923 ya que los nuevos métodos
de cálculo (ecuaciones de Fortescu
y herramientas de cálculo de Clark)
hacían que fuera práctico el balance
equivalente de cargas de iluminación
monofásicas en circuitos trifásicos.
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ieee power & energy magazine
23/03/13 10:38 AM
figura 4. Operaciones del conmutador de la red. Cantidad y tipo de fallas.
(Cortesía de AIEE Transactions).
marzo/abril 2022
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IEEE Power & Energy Magazine - Spanish - March/April 2022

Table of Contents for the Digital Edition of IEEE Power & Energy Magazine - Spanish - March/April 2022

Contents
IEEE Power & Energy Magazine - Spanish - March/April 2022 - Cover1
IEEE Power & Energy Magazine - Spanish - March/April 2022 - Cover2
IEEE Power & Energy Magazine - Spanish - March/April 2022 - Contents
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 2
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 3
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 4
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 5
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 6
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 7
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 8
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 9
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 10
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 11
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 12
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 13
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 14
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 15
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 16
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 17
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 18
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 19
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 20
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 21
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 22
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 23
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 24
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 25
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 26
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 27
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 28
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 29
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 30
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 31
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 32
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 33
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 34
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 35
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 36
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IEEE Power & Energy Magazine - Spanish - March/April 2022 - 38
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IEEE Power & Energy Magazine - Spanish - March/April 2022 - 40
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 41
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 42
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 43
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IEEE Power & Energy Magazine - Spanish - March/April 2022 - 45
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 46
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 47
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 48
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 49
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 50
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 51
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 52
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 53
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 54
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 55
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 56
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 57
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 58
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 59
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 60
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 61
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 62
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 63
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 64
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 65
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 66
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 67
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 68
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 69
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 70
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 71
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 72
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 73
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 74
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 75
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 76
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 77
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 78
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 79
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 80
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 81
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 82
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 83
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 84
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 85
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 86
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 87
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 88
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 89
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 90
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 91
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 92
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IEEE Power & Energy Magazine - Spanish - March/April 2022 - 94
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IEEE Power & Energy Magazine - Spanish - March/April 2022 - 97
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 98
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 99
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 100
IEEE Power & Energy Magazine - Spanish - March/April 2022 - 101
IEEE Power & Energy Magazine - Spanish - March/April 2022 - Cover3
IEEE Power & Energy Magazine - Spanish - March/April 2022 - Cover4
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