V&T E5 Series, Руководство пользователя

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E5 Series High Performance Universal Inverter User’s Manual
Chapter 8 Maintenance and Inspection 133
8.4 Insulation Test
Insulation test had been perform before leaving−factory, the user should not perform such test as much
as possible under general condition. If the test is unavoidable, please perform the test strictly according
to the following procedures, or inverter may be damaged.
High voltage testing is strictly prohibited, or inverter may be damaged. If the test is unavoidable, please
contact the manufacture.
 Main Circuit Insulation Test

Utilize 500VDC megger to perform test under condition of main power shutdown.

Disconnect all the control board circuits to prevent the control circuits from connecting with the
test voltage. For the power level of E5−H−4TTTG, E5−H−4TT5G, E5−A−4TT5, E5−A−4TT8.5, it
must disconnect between the terminal JT on the drive board and the PE. For the power level of
E5−H−4TT8.5GA or above, E5−A−4TTT or above, it must disconnect three cables of the surge
absorption circuit too. Pack the disconnected cable heads with insulating tapes properly.

The main circuit terminal should be connected with public conducting wires:
Figure8−T Main Circuit Insulation Test for E5−H−4T0.75G to E5−H−4TT5G, E5−A−4TT.5 to
E5−A−4TT8.5
Figure8−T Main Circuit Insulation Test for E5−H−4TT8.5GA to E5−H−4T75GA, E5−H−4T90G to
E5−H−4T500G, E5−A−4TTT to E5−A−4T450

Megger voltage can only be imposed between the public conducting wire of the main circuit and
the PE terminal.

The normal indication value of the Megger is T00MΩ or above.
Inverte
Megamete
Inverter
Megger
Inverte
Megamete
Inverter
Megger