Basic Measurement Setup For Multi-Ratio Ct Testing - Omicron CT SB2 User Manual

CT SB2 User Manual
4.3

Basic measurement setup for multi-ratio CT testing

CT
P2
P1
*
*
For information on how to connect the communication link between CT SB2 and CT Analyzer, please refer to section 4.2 on
page 17.
Figure 4-2: Basic measurement setup for multi-ratio CT testing (6-tap CT, no burden measurement, no
primary winding resistance measurement)
WARNING
Death or severe injury caused by high voltage or current possible
Feeding test voltage to a CT can cause life-threatening voltages on other taps and/or
cores of the CT.
► Do not touch other taps or windings of the CT during the test.
► When testing multi-core CTs, make sure that no other windings of the CT are open.
Leave the secondary windings of the other (non-measured) cores connected, or short-
circuit them if the windings are open.
► Always connect all secondary taps/windings to the CT SB2 switch box in order to
guarantee safety during testing.
18
X6
X5
X4
X3
X2
X1
Burden
Wiring for burden measurement, see Figure 4-4
*
OMICRON