Qualitrol 509ITM Series, Manual

Page: 71 / 189

71
www.qualitrolcorp.com
Input Module Number and Input Signal Name Fields
This section of the Simple CT Temperature Scaling Setup window includes the fields
described below.
Input module
number Displays the input module number for which the si
mple “CT,
Temperature” scaling parameters are being configured.
Input signal
name Displays the user-assigned name of the
signal for which the simple “CT,
Temperature” scaling parameters are being configured.
Winding Rise Parameters
This section of the Simple CT Temperature Scaling Setup window includes the fields
described below.
Oil
Temperature
Adder Allows you to select one of the available RTD Input Modules. The
selected RTD Input Module will be the liquid temperature measurement
that is added to the winding curve simulation, for example, top oil
temperature.
Winding Rise
Temperature Allows you to set the number of degrees that the winding temperature will
be over the oil temperature (delta T) at nominal load for the transformer.
You can calculate this parameter from the transformer heat run test
reports by subtracting the oil temperature at nominal loading from the
winding temperature at nominal loading. If you cannot obtain the heat run
report, contact the transformer manufacturer for these values.
Current
Factor Displays the value measured at the clamp-on CT sensor of the 509ITM at
nominal loading of the transformer.