Omicron CPC 100 Reference Manual

CPC 100 V1.41
4 - 24
The "Temperature Compensation for Cu" Option
Option selected
Provides two more parameters to enter:
Depending on these two parameters, the reference resistance (Rref,
temperature-compensated winding resistance) is calculated:
Option cleared
For the winding resistance measurement there is no temperature compensation
taken into consideration.
Once all settings are defined, press the I/O (test start/stop) push-button to start
the test.
When the measurements are taken, finish the test by assessing it.
To learn more about test assessment, refer to ”Test Assessment” on page 10-2.
Tmeas: ambient temperature
Tref: operating temperature of test object, that is, the current
transformer’s secondary winding
Rref: In Centigrade:
Rref = (VDC / IDC) x (235°C + Tref) / (235°C + Tmeas)
In Fahrenheit:
Rref = (VDC / IDC) x (391°F + Tref
F
) / (391°F + Tmeas
F
)
Note: Formula according to IEC 60076-1.

Omicron CPC 100 Specifications

General

Brand	Omicron
Model	CPC 100
Category	Test Equipment
Language	English