Eurotherm 7000 Series, Руководство пользователя

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Control / Limits
7300A User Manual
4-6
NOTE:
I 2 current Control and Limitation operating condifiotns :
1 - Standard
If the gap between of the three currents squared is less than 25% of the calibrated nominal
current I
N
2 , then the control is achived at the mean value of the three currents squared.
∆
I
i
2 < 25% I
N
2 then I 2 = (I1 2 +I2 2 +I3 2 )/3
i = 1,2,3
2 - In the case of an unbalanced load.
If the gap is more than 25%, then the control is achieved at the squared value of
the highest current value.
∆
I
i
2 > 25% I
N
2 then I 2 = Imax 2
i = 1,2,3