5.Operation
5.1 Basic Operation
Demand time and demand value of current demand
The demand time (t
) is the time until the measurement display value (I
o
certain constant input (I) is given. To display 100% of the input (I), about three times more than the time (t
Ⅰ
0.95Ⅰ
(Ⅰ
)
0
The demand value is the measurement display value with the above time characteristics, and it shows the overall average within
the demand time.
The demand value changes over a relatively long time, so it is not affected by input changes within a short time.
Therefore, this is good for monitoring transformer overload.
t
0
Time (t)
(Time period)
) displays 95% of the input (I) when a
o
- 55 -
) is needed.
o