High Voltage PFT Series, Safety, Operation, And Procedure Instructions

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7
Operating the Equipment
This section provides step-by-step instruction on various test methods. Many facilities have their own
in-house test procedures that should not be superceded by this manual. The purpose of this section
is to explain the capabilities of this test set in real-world applications.
AC Insulation Testing
1.
Ensure that all the steps listed in Setting up the Equipment have been accomplished. Take
special note to ground the control panel to a solid earth ground using the supplied black test
lead.
2.
Select the desired VOLTMETER RANGE for the test voltage level expected.
3.
Prior to connecting the output cable (toroid) to the test sample, be sure that the test sample is
de-energized.
4.
Connect the output lead to the test sample. Be sure that there is enough clearance to
grounded objects for the expected test voltage. The minimum clearance in air is 10 kV
ac/inch.
5.
Return the low side of the test sample to the LOAD RETURN connector using the supplied
shielded return lead. See the GUARD/GROUND explanation (pp. 9,10) for direction on which
mode may be appropriate for your testing requirements.
6.
Connect the input power cord to a grounded source (See the specification table for unit input
requirements).
7.
Depress the MAIN POWER switch to energize the control circuits.