MANUAL PC-200
Ver. 2.12.xx/10/22/2010-UK
Page 24 (61)
The factor F = transformer ratio / (n turns + 1)
You need to take the transformer rate for (example 10) and divide it by (the number of turns around
the coil +1).
Example 3.
Measuring a 20 Amps pump.
We use a 50/5 A. transformer where the transformer ratio is 10.
In order to increase tha accuracy of the measuring range we need to wind the powercable one
turn around the tranformer coil.
F = 10/(1+1) = 5
Set the transformation factor in the PC 200 to 5.
Example 4.
Measuring a 10 Amps pump.
We use a 50/5 A. transformer where the transformer ratio is 10.
In order to increase tha accuracy of the measuring range we need to wind the powercable 2
turns around the tranformer coil.
F = 10/(2+1) = 3.33
Set the transformation factor in the PC 200 to 3.33.
Example 5.
Measuring a 5 Amps pump.
We use a 50/5 A. transformer where the transformer ratio is 10.
In order to increase tha accuracy of the measuring range we need to wind the powercable 3
turns around the tranformer coil.
F = 10/(3+1) = 2.5
Set the transformation factor in the PC 200 to 2.5.
C u r r e n t i n p u t s ►
◄
F u n c t i o n
◄◄ i n u s e
T r a n s f . I 1 f a c t .
◄◄ 1 . 0 0
T r a n s f . I 2 f a c t .
◄◄ 1 . 0 0
T r a n s f . I 3 f a c t .
◄◄ 1 . 0 0
Here the transformation factor value is set
Following choices ,in use and not in use
Here the transformation factor value is set
Here the transformation factor value is set
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