CIRCUTOR CVM-MINI Series - Manual (Page 11)

Page 11 of 26
4.1.1 Transformation Ratios
This menu accesses the voltage and current ratios and the voltage and current
primary and secondary may be changed.
4.1.1.1 Voltage primary value
The display shows ” m_n{JlcO” followed by six digits; these allow the setting
of the transformer voltage primary.
To write or change the voltage transformer primary value, repeatedly press the
max key increasing the value of the digit which is flashing at the time.
When the required value is on the screen, move on to the following digit by
pressing
min , to change the remaining values.
When the last digit has been changed, press min to move back to the first
digit, allowing the previously set values to be changed again. To enter the data
and access the next setting process, press
.
m_n
JlcO
*****+
Figure 30. Voltage primary ratio
4.1.1.2 Voltage secondary value
The display shows ” m_n{ M_]O” followed by three digits; these allow the
setting of the transformer voltage secondary.
To write or change the voltage transformer secondary value, repeatedly press
the
max key increasing the value of the digit which is flashing at the time.
When the required value is on the screen, move on to the following digit by
pressing
min , to change the remaining values.
When the last digit has been changed, press min to move back to the first
digit, allowing the previously set values to be changed again. To enter the data
and access the next setting step, press
.
m_n
M_]O
{{{**+
Figure 31. Secondary voltage ratio
4.1.1.3 Current primary value
The display shows ” m_n{JlC;” followed by five digits; these allow the setting
of the transformer current primary.
To write or change the current primary value, repeatedly press the
max key
increasing the value of the digit which is flashing at the time.
When the required value is on the screen, move on to the following digit by
pressing
min , to change the remaining values.