747192
66
Zoom out
Zoom in
Previous page
1/78
Next page
66
9.2. MEASUREMENT FORMULAS
Most of the formulas are taken from standard IEEE 1459.
The PEL measures or calculates the values below for one cycle (128 samples per period from 16 to 400Hz. These values are not
accessible to the user.


Quantities Formulas Remarks
AC measurements
Crest factor in AC voltage (VL-CF)
x
x
peakL
CFL
V
V
n
TV
=
×
=
1
][
L = 1, 2 or 3
AC inverse voltage unbalance (u2)
+
×=
V
V
u100
2
*
AC homopolar voltage unbalance (u0)
+
×=
V
V
u
0
0
100
*
Crest factor of the current (IL-CF)
L
n
xx
peakL
CFL I
I
n
TI
=
×
=1
1
][
L = 1, 2 or 3
AC inverse current unbalance (i2)
+
×=
I
I
i100
2
*
AC homopolar current unbalance (i0)
+
×=
I
I
i
0
0
100
*
AC reactive power (QL)
( )
1111
,sin
HLHLHLHLL
VIIVQ
××=
ϕ
321
QQQQ
T
++=
L = 1, 2 or 3
AC apparent power (SL)
LLL
IVS ×=
3
21
SSSS
T
++=
L = 1, 2 or 3
Fundamental angles
ϕ (IL, VL)
ϕ (IL, IM)
ϕ (IM, VM)
FFT calculation
ϕ 󰀨
fundamental current IL and the funda-
mental voltage VL
AC non-active power (NL)
22
LLL
PSN =
L = 1, 2, 3 or T
AC deforming power (DL)
22
LLL
QND =
L = 1, 2, 3 or T
Quadrant (q)

when PfL[10/12] > 0 and QL[10/12] > 0: quadrant 1
when PfL[10/12] < 0 and QL[10/12] > 0: quadrant 2
when PfL[10/12] < 0 and QL[10/12] < 0: quadrant 3
when PfL[10/12] > 0 and QL[10/12] < 0: quadrant 4
AC fundamental active power
(PfL)
( )
1111
,cos
HLHLHLHLL
VIIVPf
××=
ϕ
321 PfPfPfPfT++=
L = 1, 2 or 3
AC fundamental direct active power
(P+)
( )
+++++
×××= VIIVP ,cos3
θ
66


Need help? Post your question in this forum.

Forumrules


Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

For example, Anti-Semitic content, racist content, or material that could result in a violent physical act.

For example, a credit card number, a personal identification number, or an unlisted home address. Note that email addresses and full names are not considered private information.

Forumrules

To achieve meaningful questions, we apply the following rules:

Register

Register getting emails for Chauvin Arnoux PEL105 at:


You will receive an email to register for one or both of the options.


Get your user manual by e-mail

Enter your email address to receive the manual of Chauvin Arnoux PEL105 in the language / languages: English as an attachment in your email.

The manual is 11,67 mb in size.

 

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.



Info