Baker D30R User Manual - page 34
High Voltage DC Testing
12/3/2009 | 71-022 V6
D30R
34
14)
Save test results by pressing the Store button and selecting desired record.
Performing only a Megohm test
1)
Connect appropriate high voltage leads to stator windings as seen in Fig 5-2.
2)
Move Test Lead selector switch to HiPot position.
3)
Move Function Knob to 100uA/Div position.
4)
Press and hold Test button. Ramp test voltage to desired Megohm test voltage and
press the Time=0 button at the top of the screen after reaching required voltage.
5)
Adjust μA/div knob if required to get the machine in the most accurate current range for
observed leakage current. The DR Series tester will place a message on the screen if it
should be moved to a lower current range.
6)
After time has elapsed for the Megohm test, usually 60 seconds per IEEE 43, press the
Save HiPot button. The Megohm data will be displayed in the middle of the screen
between the voltage and current slider bars. Data acquired at 30 seconds and at 1
minute will be displayed. These two values are required for calculation of the DA and PI
tests. The tester automatically acquires these values; however, if only a Megohm test is
required, these data points will not be used.
Performing only DC over voltage test (DC HiPot test)
1)
Connect appropriate high voltage leads to stator windings as seen in Fig 5-2.
2)
Move Test Lead selector switch to HiPot position.
3)
Move Function Knob to 100uA/Div position.
4)
Press and hold Test button. Ramp test voltage to desired Megohm test voltage and
press the Time=0 button at the top of the screen after reaching required voltage.
5)
Adjust μA/div knob if required to get machine in the most accurate current range for
reading leakage current. The DR Series tester will place a message on the screen if it
should be moved to a lower current range.
6)
After time has elapsed for the DC over voltage test, usually 60 seconds per IEEE 95,
press the Save Meg button. Megohm data will be displayed in the middle of the screen
between the voltage and current slider bars. Data acquired at 30 seconds and at 1