104 • High-Pot Test of the HRVS-DN Cabinet
_____________________________________________________________________________________________
11.4 High-Pot Test in HRVS-DN from 10kV and Up, EPT-Tx Not Connected
High-pot test procedure for L1 (refer to Figure 44):
Dismantle the EPT-Tx
Short circuit the L1 and U busbars of phase L1.
Short circuit the L2 and V busbars of phase L2.
Short circuit the L3 and W busbars of phase L3.
Short circuit input-output phases of the Line Contactor.
Short circuit input-output phases of the Bypass Contactor.
Connect to ground L2 and L3.
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 L1.
Set the tester to the correct test voltage, as specified above. Perform the test for 1 minute.
Figure 44 – HRVS-DN from 10kV and up, EPT-Tx not Connected, Preparations for High-pot Test, Testing L1
High-pot test procedure for L2 (refer to
Figure 45):
Dismantle the EPT-Tx
Short circuit the L1 and U busbars of phase L1.
Short circuit the L2 and V busbars of phase L2.
Short circuit the L3 and W busbars of phase L3.
Short circuit input-output phases of the Line Contactor.
Short circuit input-output phases of the Bypass Contactor.
Connect to ground L1 and L3.
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 L2.
Set the tester to the correct test voltage, as specified above. Perform the test for 1 minute.
To Next Page
Loading...
Need help?
General
