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62 Electrical installation
Generator stator and generator cable
￭
Check the insulation of the generator stator and cable as follows:
•
Check that all cables are disconnected from the converter output terminals U2, V2 and
W2.
•
Measure the insulation resistance between each phase conductor and the protective
ground conductor using a measuring voltage of 1000 V DC. The insulation resistance
of an ABB generator must exceed 100 Mohm (reference value at 25 °C (77 °F)). For
the insulation resistance of other generators, please consult the manufacturer's
instructions.
•
Note: Make sure that there is no condensed moisture inside the generator casing. If
you suspect that there is moisture, dry the generator before measurement.
•
Note: When using permanent magnet generator, it must be stable at the time of the
measurement.
ohm
Connecting the grid cables
Connection diagram
￭
U1
G
V1
3~
W1
PE
PE
U<
L1
L2
L3
PE
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