CREATING THE PROGRAM VOLTECH AT3600 USER MANUAL
PAGE 3.3.24. VPN 98 - 024 TEST PROGRAM EDITOR
δnp (δns) = the ± error number of primary (secondary) turns
for the [ # ] limits
K = a factor to make #np and #ns whole numbers in
the range 1 to 99999
Notes:
1. The conversions in the above table are written in a form to make it easier to
understand the conversion process; they are not intended to be exact
mathematical formulae.
2. Where possible the measured result is used as the nominal or central value.
For the > and < limits where only one value is required, the measured result
simply becomes that value.
For the > < limit where two values are required, the conversion process is in
essence to use the single measured result as both the minimum and maximum
values. Again, as stated previously for the conversions between the different
limit types, because it is not logical to have a minimum and a maximum exactly
the same, the two values are made different, but only by a small amount.
If you prefer to use the > < limit, but would like the minimum and maximum values
to cover a larger range (for example ±5%), a possible approach is as follows:
Initially choose the % limits before clicking on the Measure button.
After the result has been returned, set the Negative and Positive limits to 5%.
Then change to the > < type of limit, to view the limits in your preferred way.
Another possibility, which you may also choose, is to use this last procedure simply
to find approximate values for the minimum and maximum which are 5% from the
measured value. You may then enter the actual test limits by rounding up or down to
your nearest preferred values.
To Next Page
Loading...