Voltech AT5600 User Manual page 159

C H A P T E R 7 – T E S T S
Choosing test conditions
The recommended test conditions depend on the inductance of the energized
winding; they are given in the table below assuming that the energized winding is
the one with the highest number of turns:
Inductance of the
Energized Winding
100nH
1uH
10uH
100uH
1mH
10mH
100mH
1H
10H
100H
1kH
The test conditions can also be determined automatically by the AT5600
according to this table:
Voltage
Frequency
Note that a 'fixed' voltage signal cannot be used with an 'Auto' frequency.
Please also see
14.6.35 for specific advice on programming the test, and
10.2.10 for test accuracy specification
Best Practice for Centre Taps / AutoTransformers
Please also see the section in 7.13 TURNS RATIO for best practice when
performing LVOC on Centre Taps / AutoTransformers
AT5600 User Manual 98-119 issue 14
A N D T E S T C O N D I T I O N S
→
1H
→
10H
→
100H
→ 1mH
10mH
→
100mH
→
1H
→
10H
→
100H
→
1kH
→
10kH
→
Specified
Specified
Preferred test signal
Frequency
Voltage
300kHz 10mV
100kHz 30mV
30kHz 50mV
10kHz 100mV
1kHz 100mV
100Hz 100mV
100Hz 300mV
50Hz 1V
50Hz 5V
50Hz 5V
20Hz 5V
Auto Auto
Specified Auto
Page 159