Wiring For Primary Resistance Measurement - Omicron Lab CT Analyzer User Manual

2.4.3

Wiring for Primary Resistance Measurement

For the primary winding resistance measurement, connect the CT Analyzer as
shown in Figure 2-4. Observe the general safety rules in section 2.1 on page 21.
1. Make sure that the primary side of the CT is connected to PE on one side and
2. Disconnect the hot side of all secondary windings of the CT in order to
3. Connect the black socket of CT Analyzer input "Prim" to the grounded side
4. Connect the black "Output" socket of the CT Analyzer to the grounded side
Figure 2-4
open on the other side.
remove any load from the CT. Every kind of load remaining on the secondary
side of the CT during measurement leads to incorrect measurement results
or error messages.
of the CT's primary winding and the red socket of this input to the open
(ungrounded) side.
of the CT's primary winding and the red "Output" socket to the ungrounded
side of the primary winding.
Utility line Utility line
Basic wiring for primary winding resistance measurement
Setup and Connection
27