Omicron CPC 100 Reference Manual

Transformer
6 - 13
Winding Resistance
Never open the measuring circuit while current flows. Dangerous voltage may
occur!
Figure 8:
Setup of a winding
resistance test
Use the RWinding test card to measure the resistance of a power transformer’s
winding. To do so, loop the I DC current signal from CPC 100 6A DC output via
IAC/DC as shown in Figure 8 and inject it into the transformer’s winding.
IAC/DC measures the injected current, and V DC input measures the voltage
generated at the transformer’s winding. From these values the winding
resistance is calculated.
Alternatively, inject the current directly from the 400A DC output (see Figure 9).
Note: Some test cards are available in more than one test mode. For
example, the test card RWinding can be selected in CT, Resistance
and Transformer.
This is solely related to usability. With regard to functionality, the test
card RWinding is identical in all test modes.

Omicron CPC 100 Specifications

General

Brand	Omicron
Model	CPC 100
Category	Test Equipment
Language	English