Megger PPX30, Руководство пользователя, Страница: 21 / 84

PPX30/30A Configuration for Surge Tests—Three-Phase Test Leads
Because Surge testing typically follows HiPot testing (recommended), test and ground leads should already be
connected, but are repeated here to ensure proper connection.
1. Ensure that the power pack setup procedure has been followed as described earlier.
2. Select the
Surge (Surge waveform icon) setting on the power pack Function Selector switch. Depending on
the high-voltage relay’s current position, you might hear a loud noise as it makes contact.
Fig 8: Power pack Surge test settings; Baker PPX30A shown.
Item Description
1 Function Selector switch.
2 Surge test mode.
3 Test select switch.
4 Set to LEADS GROUND before connecting test leads.
5 Used to switch between Surge (test leads) 1, 2, and 3.
3. Set the Test Select switch to LEADS GROUND (ground icon).
4. Connect the power pack test leads to the motor leads as described in the table below.
Table 6: Baker PPX30/30A device under test connections for Surge and HiPot testing.
Test Lead 1
Orange Test Lead 2
Brown Test Lead 3
Yellow Ground Lead
Black Black Braided
Safety Lead
Motor phase A Motor phase B Motor phase C Motor frame Station/earth ground
5. Power up the host unit and the power pack. Set the
Test Select
switch to (test lead)
1
to start testing on lead 1.
6. Check that the open ground detect warning banner does not appear in the Baker DX Display Area, or that the
open ground detection light on the Baker AWA is not illuminated.
Baker Power Pack Introduction
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