IEEE Power & Energy Magazine - Spanish - May/June 2020 - 85
Registradores
gráficos en papel
1950s
Magnetófonos de cartuchos
(cinta magnética)
Registradores
Magnetófonos de
de estado sólido
bobina abierta
1960s
1970s
El internet de
las cosas
Medidores eletrónicos
AMR/AMI
1980s
1990s
2000s
Después
figura 1. La evolución de las tecnologías de medición desde la década de 1950. AMR: lectura automática del medidor.
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Revit Model
System One-line
8
.4
3-#1, 1#1, 1-#8
3-#250, 1#250, 1-#6
3-#350, 1#350, 1-#4
3-#1, 1#1, 1-#8
kV
3-#250, 1#250, 1-#3
.4
8
kV
T-SCV
500 kVA
.48-0.48 kV
4%
T-SCV-S
PANEL
CURRENT IN AMPERES X 100 AT 480 VOLTS
1000
.8
1
2
3
4
5 6 7 8 9 10
2
3
4
5 6 7 8 9 100
2
3
4
5 6 7 8 9 1000
Bus kV
Sym
Amps
X/R
Ratio
Mult
Factor
Asym
Amps
Equi Type
M-1
0.480
19480.3
3.69
1.19
23188.3
LVPCB
MCC-1
0.480
20032.6
3.55
1.18
23640.9
LVPCB
MCC-2
0.480
19779.7
3.43
1.17
23181.0
LVPCB
PNL-1
0.480
8882.5
3.73
1.19
10597.4
LVPCB
PNL-2
0.208
5961.4
2.11
1.07
6377.3
LVPCB
SWG-4
0.480
24127.6
6.18
1.33
31990.4
LVPCB
Boundary
Incident Energy coverall
Flash Hazard inches - Arc Flash4' - 0"or arc rated
Flash Hazard Boundary
2
18
Duty Amps 4' - 0"
pants
cal/cm at
arc rated 6.0
cal/cm2 at 18 inches
shirt and
6.0
- Arc Flash Incident
Arc-rated
Energy
19480.3
cover is removed
Hazard when
0.48
kV Shock
kV Shock Hazard
20032.6
0.48
when cover is removed
3' - 6"
Limited Approach
Limited Approach
Approach
3' - 6"
1' - 0"
Restricted
Restricted Approach
19779.7
1' - 0"
(Fed By: 27B) ONLY
Equipment Name:
t Name: MCC-23A CONFIGURATION
8882.5
SWG-4 (Fed By:
Equipmen
SYSTEM
VALID FOR NORMAL
18A)
NORMAL
SYSTEM CONFIGURATIO
VALID FOR
5961.4
N ONLY
24127.6
0.15
2
18.71
17.58
M-1
200
100
80
60
50
6
5
4
BL-5
C-H HFD
225/150
3
2
1
1
.8
.8
BL-3
.6
.5
.6
.5
MVT-9
GE MVT
MV
T-9
Sensor = 800
.4
Plug = 800
Cur
C
ur Set = 0.5
0 (400A)
LT Band = 1
IInst
nst = 4 (3200A)
.3
.2
BL-5
C
uttler H
am
m
Cutler
Hammer
Series C
HF
HFD
Frame
(150AT)
F
rame = 225A (150A
Trip = 150
.03
.4
BL-1
18627A
.3
C-6
1 - 400 kcmil CU
TX-2
1000 / 1288 kVA
INRUSH
.1
.08
.06
.05
.8
1
2
3
4
5 6 7 8 9 10
2
3
4
5 6 7 8 9 100
2
3
4
Automated
Protective
Device
Coordination
.08
.06
.05
.04
.03
.02
BL-5
20574A
.5 .6
.2
.1
BL-3
29249A
.02
.01
300
40
30
20
10
8
.48
6
5
4
3
.04
Short Circuit
Calculations
1.90
BL-1
GE MVT
MV
T-Plus
MVT-Plus
Sensor = 1600
Plug = 1600
1.1 (1760A)
Cur Set = 1
LT
T Band = 1
STPU
2.5
S
TPU = 2
.5 (4400A)
ST
S
T Delay
Dela
elay
y = Int
ST
S
T Delayy I²t
I² = Out
Override
O
verride = 50000A
8
BL-3
GE AKR-30H
800/400
19
Equipment Duties
400
24
SWG-4
20
10
BL-1
GE AKR-50
1600/1760
.13
TX-2
-2
1000 / 1288 kVA
6%
40
30
Total Fault Fault
5 6 7 8 9 10000
1000
TX-2
1 / 1.288 MVA
13.8 - 0.48 kV
6%
200
80
3 PHASE Fault
4
600
500
300
60
50
d
Risk Hazar
and Shock
Arc Flash and Shock
Arc Flash priate PPE Required
Appro
Appropriate PPE Risk Hazard
Required
3
800
400
100
Vpu = 1.00
2
TX-2
FLA
600
500
EasyPower 10.4.0.198 10/11/2018 10:00:07 AM C:\...\Protection-1..dez
EasyPower LLC
Comments:
Bus Name
.5 .6
800
TIME IN SECONDS
Analysis and
Auto-Design
LV Momentary Report
TIME IN SECONDS
de 1930 como una forma de compren-
der mejor a los clientes de electricidad
y su contribución a una base cada vez
mayor y un crecimiento sin prece-
dentes. Curiosamente, la Asociación
de Compañías de Alumbrado Edison
(AEIC, por sus siglas en inglés) cuenta
con un Comité Especial de Estudios de
Carga que se remonta a 1938. La tabla
1 enumera los miembros de este comité
desde 1938 hasta 1943. El Comité de In-
vestigación de Carga de la AEIC se es-
tableció en octubre de 1943 y celebró su
primera reunión organizativa en 1944.
Poco después, las empresas de servicios
públicos asociadas comenzaron a reali-
zar estudios de carga para desarrollar
una mejor comprensión de los princi-
pales dispositivos que utilizan energía,
equipos de calefacción y refrigeración,
y procesos comerciales e industriales.
Después de la Segunda Guerra
Mundial, la industria de empresas de
servicios públicos eléctricos en los Es-
tados Unidos experimentó un periodo
prolongado de rápido crecimiento, y
se necesitaron construir nuevas insta-
laciones. Los pronósticos de demanda
proyectaban que la alta tasa de creci-
miento continuaría en el futuro próxi-
mo. Sin embargo, la expansión de los
EE. UU. se ralentizó en la década de
1970, lo que provocó que la industria de
empresas de servicios públicos realiza-
ra previsiones excesivas de la necesidad
de capacidad. En 1978, la Ley sobre
Políticas Normativas para Empresas de
Servicios Públicos (PURPA, por sus si-
glas en inglés) estableció requerimien-
tos para que la empresas de servicios
públicos recopilen datos de investiga-
ción de carga, tales como curvas dia-
rias de demanda de carga en kilovatios
(kW), para grandes clases de tarifas de
servicios públicos que representaron al
5 6 7 8 9 1000
2
3
4
.01
5 6 7 8 9 10000
CURRENT IN AMPERES X 100 AT 480 VOLTS
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IEEE Power & Energy Magazine - Spanish - May/June 2020
Table of Contents for the Digital Edition of IEEE Power & Energy Magazine - Spanish - May/June 2020
Contents
IEEE Power & Energy Magazine - Spanish - May/June 2020 - Cover1
IEEE Power & Energy Magazine - Spanish - May/June 2020 - Cover2
IEEE Power & Energy Magazine - Spanish - May/June 2020 - Contents
IEEE Power & Energy Magazine - Spanish - May/June 2020 - 2
IEEE Power & Energy Magazine - Spanish - May/June 2020 - 3
IEEE Power & Energy Magazine - Spanish - May/June 2020 - 4
IEEE Power & Energy Magazine - Spanish - May/June 2020 - 5
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IEEE Power & Energy Magazine - Spanish - May/June 2020 - Cover3
IEEE Power & Energy Magazine - Spanish - May/June 2020 - Cover4
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