поискавой системы для электроныых деталей
  Russian  ▼
ALLDATASHEETRU.COM

X  

Preview PDF HTML

STPM01 датащи(PDF) 48 Page - STMicroelectronics

номер детали STPM01
подробное описание детали  Programmable single phase energy metering IC with tamper detection
PDF  60 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STPM01 датащи(HTML) 48 Page - STMicroelectronics

Back Button STPM01 Datasheet HTML 44Page - STMicroelectronics STPM01 Datasheet HTML 45Page - STMicroelectronics STPM01 Datasheet HTML 46Page - STMicroelectronics STPM01 Datasheet HTML 47Page - STMicroelectronics STPM01 Datasheet HTML 48Page - STMicroelectronics STPM01 Datasheet HTML 49Page - STMicroelectronics STPM01 Datasheet HTML 50Page - STMicroelectronics STPM01 Datasheet HTML 51Page - STMicroelectronics STPM01 Datasheet HTML 52Page - STMicroelectronics Next Button
Zoom Inzoom in Zoom Outzoom out
 48 / 60 page
background image
Theory of operation
STPM01
48/60
Doc ID 10853 Rev 8
Equation 16
The reactive power will present then a ripple at twice the line frequency. Since the average
value of a sinusoid is 0, this ripple does not contribute to the reactive energy calculation over
time, moreover, in the STPM01 the reactive power is not used for meter calibration or to
generate the stepper pulses, then this ripple will not affect the overall system performances.
In case of Rogowsky coil, the same procedure is applied, but the current channel will be
proportional to the derived of the current and the differentiated is bypassed in the voltage
channel, so we have:
Equation 17
Equation 18
The reactive power is then calculated:
Equation 19
8.24.3
Apparent power and RMS values
The RMS values are calculated starting from the following formulas.
Shunt or current transformer
Equation 20
multiplying Equation 20 by
ω, the I
RMS value is obtained:
())
t
2
sin(
sin
2
VI
)
t
(
Q
2
1
)
t
(
Q
1
3
ϕ
+
ω
−
ϕ
⋅
=
ω
⋅
⋅
=
()
())
t
2
sin(
sin
2
VI
)
t
sin(
I
)
t
cos(
V
)
t
(
i
)
t
(
V
dt
)
t
(
i
dt
)
t
(
v
)
t
(
Q
1
ϕ
+
ω
+
ϕ
ω
=
ϕ
+
ω
−
⋅
⎟
⎠
⎞
⎜
⎝
⎛
ω
ω
−
=
⋅
=
′
⋅
=
∫∫
()
())
t
2
sin(
sin
2
VI
)
t
cos(
I
)
t
(
t
sin
V
)
t
(
i
)
t
(
v
)
t
(
Q1
ϕ
+
ω
−
ϕ
⋅
ω
⋅
−
=
ϕ
+
ω
ω
−
⋅
ω
=
′
⋅
=
())
t
2
sin(
sin
2
VI
)
t
(
Q
2
1
)
t
(
Q
1
3
ϕ
+
ω
+
ϕ
⋅
=
ω
⋅
⋅
=
2
I
dt
)
t
(
I
T
1
T
0
2
⋅
ω
=
∫



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60


датащи скачать

Go To PDF Page


ссылки URL



Вашему бизинису помогли Аллдатащит?  [ DONATE ] 

Что такое Аллдатащит   |   реклама   |   контакт   |   Конфиденциальность   |   Ссылка на техническое описание    |   обмен ссыками   |   поиск по производителю
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com