ABB ConVac Installation And Operation Instruction Manual page 25

P U T T I N G I N T O S E R V I C E
6.2 Factory acceptance test with self-supplied VT
Attention
During factory acceptance test, auxiliary
circuit should be supplied with another
independent power source.
While performing withstand voltage test,
guarantee that VT secondary side has been
effectively grounded. Withstand voltage
test between phase A and phase C is
forbidden unless when the fuse has been
removed.
Make sure to reinstall the fuses after the
test.
—
Fig 6b
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