Descripción: Presentación de Convertidores y Cicloconvertidores Monofásicos y TGrifásicos, de Media Onda y Onda Completa, Ptincipios de Control de Fase y Control de Abrir y Cerrar
Descripción: Conversores AC/AC
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prinsip kerja, bentuk gelombang keluaran serta jenis-jenis dai cycloconverterFull description
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field theory
Description : circuit propane
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CHAPTER 15 SINGLE-PHASE SERIES A.C. CIRCUITS Exercise 83, Page 236
1. Calculate the reactance of a coil of inductance 0.2 H when it is connected to (a) a 50 Hz,
(b) a 600 Hz and (c) a 40 kHz suppl.
(a) I!"c#i$e reac#ace ,
"!
= 2π f ! = 2 π ( 50 ) ( 0.2 ) # 62.83
(b) I!"c#i$e reac#ace ,
"!
= 2π f ! = 2 π ( 600 ) ( 0.2 ) # %5&
"!
= 2π f ! = 2 π ( 40 ×%0 $ ) ( 0.2 )
(c) I!"c#i$e reac#ace ,
# 5'.2% (
2. & coil has a reactance of %20 Ω in a circuit with a suppl fre'uenc of 4 kHz. Calculate the
inductance of the coil.
"!
"!
= 2π f ! hence,
i!"c#ace, L #
2π f
=
%20 2π ( 4 ×%0 $ )
# &.%% )H
3. & suppl of 240 , , 50 Hz is connected across a pure inductance and the resultin res ultin current is %.2 &
Calculate the inductance of the coil.
240 " = = with Scribd Master your semester * %.2 # 200 *nducti+e reactance, & The New York Times " 200 !
Special offer for students: Only $4.99/month.
"!
= 2π f ! hence,
i!"c#ace, L #
!
2π f
=
2π ( 50 )
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(b) C"rre# , * #
"!
=
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200 62
# '.318 A
5. & %20 -H inductor has a 50 -&, % kHz alternatin current flowin throuh it. 1ind the p.d.
across the inductor
*nducti+e reactance,
"!
P.!. acrss i!"c#r ,
= 2π f ! = 2π ( % ×%0 $ ) ( %20 ×%0 −$ )
!
# /5$.2
Ω
= * × "! = 50 ×%0 −$ × /5$.2 # 3%.%
reac tance of a capacitor of 20 31 when connected to an a.c. circuit of 6. Calculate the capaciti+e reactance fre'uenc (a) 20 Hz, (b) 500 Hz, (c) 4 kHz
"C
=
(a) Ca4aci#i$e reac#ace, "C
=
(b) Ca4aci#i$e reac#ace reac#ace , "C
=
(c) Ca4aci#i$e reac#ace,
% 2π f C % 2π f C % 2π f C
= = =
% 2π × 20 × 20 ×%0 %0 −6
# 3%.
% 2 π × 500 × 20 ×%0 %0 −6
# 15.2
% 2 π × 4000 × 20 ×%0 %0 −6
# 1.8
%. & capacitor has a reactance of 0 Ω when connected to a 50 Hz suppl. Calculate the +alue of
the capacitor. Master your semester with Scribd & The New York Times Special offer for students: Only $4.99/month. %
"C
=
2 fC
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%
2 f"
=
% 2
0 ) ( 50 ) ( 0
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