Tettex MIDAS 2881, Operating Instructions Manual

Page: 131 / 164

Applications Guide 121
Two Winding Transformers (3 phase and single-phase)
Measurement connections of a two windings transformer for measurement of C
HG
and C
HL
Test Connections
Sequence
Line DUT INPUT A
to INPUT
HV GND
to Test Mode High Voltage
to
1 C
HL
LV Tank GND UST A HV
2 C
HG
LV Tank GND GST gA+B HV
3 C
LG
HV Tank GND GST gA+B LV
4 C
LG
+ C
HG
- Tank GND GST gA+B LV + HV
Note: Test line #4 can be used to inter-check the measurement results. (#4 = #2 + #3). Additional
measurements in other test modes can be executed to inter-check the measurements results.