ABB OmniCore V250XT Type B Product Manual page 80

3 Installation and commissioning
3.5.3 Power supply system requirements
Continued
For further information refer to regional power supply standards.
Allowed isolation transformer types
The following isolation transformer types are allowed by ABB:
Delta-Wye isolation transformer (△/Y)
xx1700001318
80
characteristics out of standard limits. To some extent, isolation transformers
will filter out harmonics, spikes and surges.
A Primary/input
B Secondary/output
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Wye-Wye isolation transformer (Y /Y)
xx1700001319
Product manual - OmniCore V250XT Type B
3HAC087112-001 Revision: A