11
Instruction Manual
VLOG-10
4�- OPERATION
4.1.- OPERATING PRINCIPLE
The device is prepared to operate autonomously when it has been connected to the mains,
after which it will start to measure and calculate both the voltage and frequency, recording any
data and incidents. These records are stored according to the settings established in the setup
parameters.
A PC and the
VLOG-10
Software
application are used to configure the device and its parame
-
ters and upload the recorded data.
4�1�1�- VOLTAGE ANALYSIS
The mains voltage is analysed using a 12-bit resolution analogue-to-digital converter. The
sampling frequency is adaptive, according to the signal frequency that is detected.
This frequency may range from 10 to 12 kHz, depending on the mains voltage frequency (50
or 60 Hz respectively). This results in the device performing 200 voltage measurements per
period, irrespective of the mains frequency.
The mains voltage RMS is calculated using the following mathematical equation:
𝑉𝑉𝑉𝑉
𝑅𝑅𝑅𝑅𝑅𝑅𝑅𝑅𝑅𝑅𝑅𝑅
=
�∑
(
𝑉𝑉𝑉𝑉
𝑛𝑛𝑛𝑛
)
2
𝑁𝑁𝑁𝑁−1
𝑛𝑛𝑛𝑛=0
𝑁𝑁𝑁𝑁
𝐹𝐹𝐹𝐹
𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚
=
�
𝑁𝑁𝑁𝑁
𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃
_
𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑃𝑃𝑃𝑃𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃�
𝐹𝐹𝐹𝐹
𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚
=
�
200
20
𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚�
= 10
𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘
𝐹𝐹𝐹𝐹
𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚
=
�
200
16.6
𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚�
= 12
𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘
𝐹𝐹𝐹𝐹
𝑚𝑚𝑚𝑚𝑠𝑠𝑠𝑠𝑚𝑚𝑚𝑚𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑛𝑛𝑛𝑛𝑠𝑠𝑠𝑠
=
�
𝑁𝑁𝑁𝑁
𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑚𝑚𝑚𝑚𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑃𝑃𝑃𝑃𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆
_
𝑆𝑆𝑆𝑆𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃�
𝐹𝐹𝐹𝐹
𝑚𝑚𝑚𝑚𝑠𝑠𝑠𝑠𝑚𝑚𝑚𝑚𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑛𝑛𝑛𝑛𝑠𝑠𝑠𝑠
=
�
200
20
𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚�
= 10
𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘
𝐹𝐹𝐹𝐹
𝑚𝑚𝑚𝑚𝑠𝑠𝑠𝑠𝑚𝑚𝑚𝑚𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑛𝑛𝑛𝑛𝑠𝑠𝑠𝑠
=
�
200
16.6
𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚�
= 12
𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘
Equation 1: Calculation of the mains voltage RMS�
The device calculates and analyses the RMS input voltage of each complete period, with an
adaptive frequency of:
𝑉𝑉𝑉𝑉
𝑅𝑅𝑅𝑅𝑅𝑅𝑅𝑅𝑅𝑅𝑅𝑅
=
�∑
(
𝑉𝑉𝑉𝑉
𝑛𝑛𝑛𝑛
)
2
𝑁𝑁𝑁𝑁−1
𝑛𝑛𝑛𝑛=0
𝑁𝑁𝑁𝑁
𝐹𝐹𝐹𝐹
𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚
=
�
𝑁𝑁𝑁𝑁
𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃
_
𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑃𝑃𝑃𝑃𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃�
𝐹𝐹𝐹𝐹
𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚
=
�
200
20
𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚�
= 10
𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘
𝐹𝐹𝐹𝐹
𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚
=
�
200
16.6
𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚�
= 12
𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘
𝐹𝐹𝐹𝐹
𝑚𝑚𝑚𝑚𝑠𝑠𝑠𝑠𝑚𝑚𝑚𝑚𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑛𝑛𝑛𝑛𝑠𝑠𝑠𝑠
=
�
𝑁𝑁𝑁𝑁
𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑚𝑚𝑚𝑚𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑃𝑃𝑃𝑃𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆
_
𝑆𝑆𝑆𝑆𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃�
𝐹𝐹𝐹𝐹
𝑚𝑚𝑚𝑚𝑠𝑠𝑠𝑠𝑚𝑚𝑚𝑚𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑛𝑛𝑛𝑛𝑠𝑠𝑠𝑠
=
�
200
20
𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚�
= 10
𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘
𝐹𝐹𝐹𝐹
𝑚𝑚𝑚𝑚𝑠𝑠𝑠𝑠𝑚𝑚𝑚𝑚𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑛𝑛𝑛𝑛𝑠𝑠𝑠𝑠
=
�
200
16.6
𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚�
= 12
𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘
Equation 2:Adaptive sampling frequency�
Where, for a standard mains frequency of 50 Hz, it would be:
𝑉𝑉𝑉𝑉
𝑅𝑅𝑅𝑅𝑅𝑅𝑅𝑅𝑅𝑅𝑅𝑅
=
�∑
(
𝑉𝑉𝑉𝑉
𝑛𝑛𝑛𝑛
)
2
𝑁𝑁𝑁𝑁−1
𝑛𝑛𝑛𝑛=0
𝑁𝑁𝑁𝑁
𝐹𝐹𝐹𝐹
𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚
=
�
𝑁𝑁𝑁𝑁
𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃
_
𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑃𝑃𝑃𝑃𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃�
𝐹𝐹𝐹𝐹
𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚
=
�
200
20
𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚�
= 10
𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘
𝐹𝐹𝐹𝐹
𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚
=
�
200
16.6
𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚�
= 12
𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘
𝐹𝐹𝐹𝐹
𝑚𝑚𝑚𝑚𝑠𝑠𝑠𝑠𝑚𝑚𝑚𝑚𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑛𝑛𝑛𝑛𝑠𝑠𝑠𝑠
=
�
𝑁𝑁𝑁𝑁
𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑚𝑚𝑚𝑚𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑃𝑃𝑃𝑃𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆
_
𝑆𝑆𝑆𝑆𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃�
𝐹𝐹𝐹𝐹
𝑚𝑚𝑚𝑚𝑠𝑠𝑠𝑠𝑚𝑚𝑚𝑚𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑛𝑛𝑛𝑛𝑠𝑠𝑠𝑠
=
�
200
20
𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚�
= 10
𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘
𝐹𝐹𝐹𝐹
𝑚𝑚𝑚𝑚𝑠𝑠𝑠𝑠𝑚𝑚𝑚𝑚𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑛𝑛𝑛𝑛𝑠𝑠𝑠𝑠
=
�
200
16.6
𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚�
= 12
𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘
Equation 3: Sampling frequency (mains: 50 Hz)�
In the case of a mains frequency of 60 Hz:
𝑉𝑉𝑉𝑉
𝑅𝑅𝑅𝑅𝑅𝑅𝑅𝑅𝑅𝑅𝑅𝑅
=
�∑
(
𝑉𝑉𝑉𝑉
𝑛𝑛𝑛𝑛
)
2
𝑁𝑁𝑁𝑁−1
𝑛𝑛𝑛𝑛=0
𝑁𝑁𝑁𝑁
𝐹𝐹𝐹𝐹
𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚
=
�
𝑁𝑁𝑁𝑁
𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃
_
𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑃𝑃𝑃𝑃𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃�
𝐹𝐹𝐹𝐹
𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚
=
�
200
20
𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚�
= 10
𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘
𝐹𝐹𝐹𝐹
𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚
=
�
200
16.6
𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚�
= 12
𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘
𝐹𝐹𝐹𝐹
𝑚𝑚𝑚𝑚𝑠𝑠𝑠𝑠𝑚𝑚𝑚𝑚𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑛𝑛𝑛𝑛𝑠𝑠𝑠𝑠
=
�
𝑁𝑁𝑁𝑁
𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑚𝑚𝑚𝑚𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑃𝑃𝑃𝑃𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆
_
𝑆𝑆𝑆𝑆𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃�
𝐹𝐹𝐹𝐹
𝑚𝑚𝑚𝑚𝑠𝑠𝑠𝑠𝑚𝑚𝑚𝑚𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑛𝑛𝑛𝑛𝑠𝑠𝑠𝑠
=
�
200
20
𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚�
= 10
𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘
𝐹𝐹𝐹𝐹
𝑚𝑚𝑚𝑚𝑠𝑠𝑠𝑠𝑚𝑚𝑚𝑚𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑛𝑛𝑛𝑛𝑠𝑠𝑠𝑠
=
�
200
16.6
𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚�
= 12
𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘𝑘
Equation 4: Sampling frequency (mains: 60 Hz)�
When the
VLOG-10
device has calculated the RMS input voltage for a period, it can generate
three types of events:
Voltage gap
,
overvoltage
and
Voltage interrupt
.
Содержание VLOG-10
Страница 1: ...INSTRUCTION MANUAL Power quality analyser VLOG 10 M091B01 03 18A...
Страница 2: ...2 VLOG 10 Instruction Manual...
Страница 25: ...25 Instruction Manual VLOG 10 116 26 43 Figure 21 VLOG 10 dimensions...
Страница 27: ...27 Instruction Manual VLOG 10 9 CE CERTIFICATE...
Страница 28: ...28 VLOG 10 Instruction Manual...
Страница 29: ...29 Instruction Manual VLOG 10...