102 • High-Pot Test of the HRVS-DN Cabinet
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Set the tester to the correct test voltage, as specified above. Perform the test for 1 minute.
Figure 41 – HRVS-DN up to 6.6kV – EPT-Tx not Connected Preparations for High-pot Test, Testing L2
High-pot test procedure for L3 (refer to +Figure 42):
Dismantle the EPT-Tx
Short circuit the L1B and U busbars of phase L1.
Short circuit the L2B and V busbars of phase L2.
Short circuit the L3B and W busbars of phase L3.
Short circuit input-output phases of the Line Contactor.
Connect to ground L1 and L2
Connect the ground cable of the High-pot tester to cabinet ground (earth).
Connect the live cable of the High-Pot tester to the soft starter busbars of L3.
Set the tester to the correct test voltage, as specified above. Perform the test for 1 minute.
+Figure 42 – HRVS-DN up to 6.6kV – EPT-Tx not Connected Preparations for High-pot Test, Testing L3
Megger test:
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