I
R
, denotes nominal rms load current of the transformer,
h
, denotes harmonic order.
Peak factor
The Peak factor is the ratio between the peak value and the RMS value of a periodic voltage
or current. The purpose of the peak factor is to give an idea of the wave peak and it is used
primarily for current waves.
𝐾𝐾
𝑎𝑎
% =
|
𝑈𝑈
0
|
|
𝑈𝑈
𝑑𝑑
| 100
𝐾𝐾
𝑑𝑑
% =
|
𝑈𝑈
𝑖𝑖
|
|
𝑈𝑈
𝑑𝑑
| 100
𝐾𝐾
𝐶𝐶𝐶𝐶𝐶𝐶𝐶𝐶𝐶𝐶𝐶𝐶𝐶𝐶
=
�
1 +
𝑒𝑒
1 +
𝑒𝑒 �
𝐼𝐼
1
𝐼𝐼
𝑒𝑒𝑒𝑒
�
2
� 𝑛𝑛
𝑞𝑞
�
𝐼𝐼
𝑛𝑛
𝐼𝐼
1
�
2
40
𝑛𝑛=2
𝐶𝐶𝐶𝐶
=
�𝑈𝑈
𝑝𝑝𝑖𝑖𝑝𝑝𝑝𝑝
�
|
𝑈𝑈
𝑅𝑅𝑅𝑅𝑅𝑅
| 100
Ecuación 4: Peak factor�
In a perfect sinusoidal wave, the peak value is √2 times greater than the RMS value; therefore
the peak factor is
1�41
. For waves with very high peak values, the peak factor will be over
1�41
4.3.- KEYPAD FUNCTIONS
The
CVM-A
has 3 keys that allow you to browse the various screens and program the device.
Table 14: Function of keys�
Key
Keystroke
Shifting to the left
Shifting to the right
Select parameter / Enter programming menu
47
Instruction Manual
CVM-A1000 - CVM-A1500
Summary of Contents for CVM-A1000
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