UST
I-CN
5-Hz
10kV
I-UN
TEST
Diagram 4
Mode: UST
UST
GST
CVT
Frequency: 5-Hz
10
9
8
7
……2
1
Voltage: 10kV
5-Hz
50Hz
Test
Internal
External
Standard: Internal reference
reference
reference
Power supply: Internal HV
Internal
External
HV
HV
Diagram 5
Diagram 6
UST
I-CN
CX = 50.85PF
5-Hz
10kV
I-UN
tgδ= 0.002%
Testing…………. 55%
Diagram 7
Diagram 8
4. Testing: Power on, and place the cursor on testing item. Press OK key
for about 5 seconds to start testing. It will show menus in testing process, as
shown in Diagram 7 (UST, 5-Hz). When testing progress is up to 100%, the
test is completed and it will display the test result as shown in Diagram 8. At
this moment, the cursor will point to the printer icon and press OK key to print
the report. The test result has the following meaning:
17